Gold v. Rowland ( 2017 )


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    RONALD GOLD, INDIVIDUALLY AND ON BEHALF
    OF ALL OTHERS SIMILARLY SITUATED v.
    JOHN ROWLAND ET AL.
    (SC 19585)
    Palmer, Eveleigh, McDonald, Espinosa and Robinson, Js.*
    Argued October 17, 2016—officially released April 11, 2017
    E.J. Robbin Greenspan, with whom were Matthew T.
    Wax-Krell and Andrew W. Krevolin, for the appellants
    (named plaintiff et al.).
    Adam K. Levin, pro hac vice, with whom were Pat-
    rick M. Fahey and Craig A. Hoover, pro hac vice, and,
    on the brief, Charles L. Howard and Peter R. Bisio,
    pro hac vice, for the appellees (defendant Anthem, Inc.,
    et al.).
    Opinion
    PALMER, J. This certified class action, which arises
    from a dispute over the proceeds of the 2001 demutuali-
    zation of the defendant Anthem Insurance Companies,
    Inc. (Anthem Insurance), comes before this court for
    the second time. The plaintiffs are a class of state
    employees and retirees who, at the time of the demutu-
    alization, were enrolled in an Anthem Insurance group
    health care insurance plan. They contend that their
    participation in that plan entitled them to membership
    in Anthem Insurance and a share of the demutualization
    proceeds, and that Anthem Insurance and the other
    insurance company defendants; see part I E of this
    opinion; breached their contractual obligations by not
    paying the plaintiffs for their membership interests and
    instead distributing their share of the proceeds to the
    defendant state of Connecticut. The first time we con-
    sidered this case, we concluded that all of the plaintiffs’
    claims against the named defendant, John Rowland, the
    former governor of Connecticut, and the state were
    barred by the doctrine of sovereign immunity or other-
    wise should have been dismissed. See Gold v. Rowland,
    
    296 Conn. 186
    , 205, 209–11, 
    994 A.2d 106
    (2010). Follow-
    ing our decision and a subsequent trial to the court
    of the plaintiffs’ breach of contract claims against the
    remaining defendants, the trial court, Bright, J., ren-
    dered judgment for those defendants. On appeal, the
    plaintiffs contend that the trial court incorrectly con-
    cluded that the relevant contract provisions were
    ambiguous and improperly consulted extrinsic evi-
    dence to determine their meaning. Finding no error, we
    affirm the trial court’s judgment.1
    I
    FACTUAL AND PROCEDURAL HISTORY
    Familiarity with the complete factual record, as
    detailed in the trial court’s memorandum of decision,
    is presumed. The relevant facts, as found by the trial
    court or stipulated to by the parties, and procedural
    history may be briefly summarized as follows.
    A
    Merger of Anthem Insurance and Blue Cross
    and Blue Shield of Connecticut, Inc.
    The dispute between the parties arises from three
    principal transactions and two group health care insur-
    ance policies. The first occurred on July 31, 1997, when
    Anthem Insurance, a mutual insurance company orga-
    nized under Indiana law, merged with Blue Cross and
    Blue Shield of Connecticut, Inc. (Blue Cross), a mutual
    insurance company organized under Connecticut law.
    The merger was executed pursuant to a November, 1996
    agreement to merge, which included as attachments a
    plan and joint agreement of merger, a proposed form
    of Anthem Insurance’s third amended and restated arti-
    cles of incorporation (1997 articles), and a form group
    guaranty health care insurance policy and certificate
    of membership (guaranty policy).2 Under the plan and
    joint agreement of merger, Anthem Insurance was des-
    ignated as the company that would survive the merger.
    Three months prior to the merger, in April, 1997, the
    directors and members of Anthem Insurance formally
    adopted the 1997 articles. Following the merger,
    Anthem Insurance, through its subsidiary, the defen-
    dant Anthem East, Inc., continued the former Blue
    Cross operations under the auspices of the defendant
    Anthem Health Plans, Inc., doing business as Anthem
    Blue Cross and Blue Shield of Connecticut (New CT-
    Blue).
    Prior to their merger, the two mutual insurance com-
    panies took different approaches to membership. Under
    Anthem Insurance’s premerger membership rules, each
    employee or individual holder of a certificate of cover-
    age under a fully insured group health care insurance
    policy was an individual member and owner of Anthem
    Insurance. The employer, membership organization, or
    other group that procured the group coverage was not
    an owner member.
    Under Blue Cross’ premerger bylaws, by contrast,
    the employers were the owner members. Each
    employer was considered one policyholder and would
    designate a representative to act on behalf of the group
    for voting purposes. Individual employees who had
    been issued insurance certificates were not considered
    to be voting members with equity rights.
    B
    Relevant Health Care Insurance Policies
    Before the merger, the state held two Blue Cross
    group health care insurance policies relevant to the
    present dispute.3 The first, known as Care Plus, pro-
    vided Medicare supplement group health care insurance
    for retired state employees and their dependents. The
    state closed enrollment in Care Plus to new members
    in 1994 but permitted enrolled members to retain their
    coverage. The Office of the Comptroller was designated
    as the voting member for that policy. In connection
    with the merger, New CT-Blue delivered a guaranty
    policy for Care Plus to the Office of the Comptroller.
    The second plan originated as a Blue Cross health
    care insurance policy that was offered to state employ-
    ees and non-Care Plus state retirees prior to 1993. In
    1993, the state converted this policy to a self-funded,
    administrative services only contract with Blue Cross
    (ASO agreement). It is undisputed that the ASO agree-
    ment, as administered by Blue Cross after 1993, was
    not an insurance policy. Both Care Plus and the ASO
    agreement were active in 1997 when Anthem Insurance
    and Blue Cross merged, and they remained in effect
    through the first half of 1999.
    On June 30, 1999, the state terminated the self-funded
    ASO agreement and instead entered into a new, fully
    insured group health care insurance policy from New
    CT-Blue (1999 group policy). Under the 1999 group pol-
    icy, New CT-Blue began providing health care insurance
    benefits to substantially the same group of state employ-
    ees and retirees who had been covered under the
    ASO agreement.
    The following year, in July, 2000, the state also termi-
    nated the Care Plus plan. At that time, Care Plus covered
    512 state retirees. Those retirees were given the option
    of enrolling in the 1999 group policy or in any of the
    other health care insurance plans available to state retir-
    ees. Unless they opted out, Care Plus members were,
    by default, enrolled in the 1999 group policy without a
    lapse in coverage. Approximately 456 of the 512 former
    Care Plus retirees ultimately were enrolled in the 1999
    group policy without any lapse in coverage.
    C
    Demutualization of Anthem Insurance
    The second key transaction that gave rise to the pres-
    ent dispute occurred on June 18, 2001, when Anthem
    Insurance’s board of directors approved a plan to con-
    vert from a mutual insurance company to a stock corpo-
    ration under Indiana law.4 Under the plan of conversion,
    upon the effective date of the demutualization, all of
    the outstanding capital stock of Anthem Insurance
    would be issued to the defendant Anthem, Inc., and
    eligible members of Anthem Insurance would become
    entitled to receive stock in Anthem, Inc., or cash, in
    exchange for the extinguishment of their membership
    interests in Anthem Insurance. The plan of conversion
    defined an eligible member as ‘‘a [p]erson who (a) is
    a [s]tatutory [m]ember of Anthem Insurance on the
    [a]doption [d]ate [June 18, 2001] and continues to be
    a [s]tatutory [m]ember of Anthem Insurance on the
    [e]ffective [d]ate [November 2, 2001], and (b) has had
    continuous health care benefits coverage with the same
    company during the period between those two dates
    under any [p]olicy or [p]olicies without a break of more
    than one day.’’ During the relevant period from June
    18 through November 2, 2001 (eligibility period), the
    plaintiffs continuously held certificates of coverage
    under the 1999 group policy.
    D
    Stock Distribution
    The third relevant transaction occurred between late
    2001 and early 2002, when Anthem Insurance distrib-
    uted more than 1.6 million shares of stock in Anthem,
    Inc., to the state, on the basis of its determination that
    the state—and not the individual state employees and
    retirees—was the eligible member under the 1999 group
    policy. Thereafter, the state sold the stock for
    $93,768,950, transferred the proceeds to the general
    fund; see Public Acts, Spec. Sess., May, 2002, No. 02-
    1, § 39; and spent them. Gold v. 
    Rowland, supra
    , 
    296 Conn. 193
    –94. Anthem Insurance made no distribution
    to the individual state employees and retirees under
    the 1999 group policy.
    At the time of the demutualization, the state received
    notice thereof and was given the option to receive its
    share of the proceeds in stock or cash. There is no
    evidence that individual enrollees in the 1999 group
    policy received notice of the demutualization. However,
    public hearings concerning the demutualization were
    held before the Indiana Department of Insurance.
    E
    Procedural History
    In January, 2002, the named plaintiff, Ronald Gold,
    a state employee, brought this action on his own behalf
    and on behalf of all others similarly situated, against
    the defendants, former Governor Rowland, the state,
    Anthem, Inc., New CT-Blue, Anthem East, Inc., and
    Anthem Insurance.5 Gold initially filed a two count inter-
    pleader action alleging that, pursuant to the plan of
    conversion, he and other similarly situated state
    employees enrolled in the 1999 group policy were enti-
    tled to receive the 1.6 million shares of Anthem, Inc.,
    stock that the insurance company defendants had
    issued to the state. In a second amended complaint,
    Gold claimed a right to the funds under various theories
    sounding in unjust enrichment, constructive trust,
    resulting trust, conversion of property, breach of duty,
    and unconstitutional takings and procedural due pro-
    cess violations.
    Thereafter, former Governor Rowland and the state
    filed a motion to dismiss Gold’s claims against them,
    arguing, among other things, that the claims were
    barred by the doctrine of sovereign immunity. The trial
    court, Sheldon, J., concluded that Gold’s common-law
    claims were barred by sovereign immunity and dis-
    missed those claims. However, the court denied the
    motion to dismiss Gold’s interpleader and state consti-
    tutional takings claims. On appeal, this court concluded
    that all of Gold’s claims against former Governor Row-
    land and the state should have been dismissed. See
    
    id., 223. Following
    the return of the case to the Superior
    Court, Gold filed the operative fourth amended com-
    plaint,6 and Lois O’Connor, a former state employee
    who retired in 1997, was added as a plaintiff. In 2011,
    the case was assigned to the court, Bright, J. Class
    certification was granted to the group of state employ-
    ees and retirees who continuously held a certificate
    of coverage under the 1999 group policy or who had
    continuous health care insurance coverage under that
    policy during the eligibility period but did not receive
    compensation as a result of the demutualization.
    In 2013, the plaintiffs and the insurance company
    defendants filed separate motions for summary judg-
    ment, each side claiming that the contract documents
    that governed the demutualization process and Anthem
    Insurance’s relationship with the state and state
    employees required that judgment as a matter of law be
    rendered in their favor. The court denied the motions,
    concluding that the contract language regarding the
    distribution of demutualization proceeds was ambigu-
    ous7 and, therefore, that it was necessary to consult
    extrinsic evidence of the parties’ intent, and that there
    were genuine issues of material fact that needed to be
    resolved at trial.
    The court bifurcated the proceedings, and the case
    proceeded to trial before the court solely on the issue
    of liability. The court heard testimony from a number
    of attorneys and other witnesses who were involved
    with the transactions at issue. Following the trial, the
    court issued a thoughtful and comprehensive memoran-
    dum of decision in which it concluded that (1) the
    various merger documents were all part and parcel
    of the same transaction, (2) when construed together,
    those documents are ambiguous with respect to the
    plaintiffs’ entitlement to membership in Anthem Insur-
    ance and a share of the demutualization proceeds, and
    (3) the extrinsic evidence conclusively supported the
    insurance company defendants’ interpretation of the
    merger documents, pursuant to which the state, rather
    than the plaintiffs, was the member entitled to the
    group’s share of the demutualization proceeds. Consis-
    tent with these conclusions, the trial court rendered
    judgment in favor of the insurance company defen-
    dants.
    The plaintiffs timely appealed to the Appellate Court,
    and we transferred the appeal to this court pursuant
    to General Statutes § 51-199 (c) and Practice Book § 65-
    1. On appeal, the plaintiffs contend that the 1997 articles
    unambiguously entitled them to the demutualization
    proceeds arising from the 1999 group policy and that
    the trial court improperly considered extrinsic evidence
    of the meaning of the relevant contract provisions. Con-
    sistent with this contention, they further claim that they
    are entitled to judgment as a matter of law. Additional
    facts will be set forth as necessary.
    II
    LEGAL ANALYSIS
    We begin our analysis of the plaintiffs’ claim by set-
    ting forth the standard of review and governing legal
    principles. ‘‘When the language of a contract is ambigu-
    ous, the determination of the parties’ intent is a question
    of fact . . . . [When] there is definitive contract lan-
    guage, [however] the determination of what the parties
    intended by their contractual commitments is a ques-
    tion of law. . . . It is implicit in this rule that the deter-
    mination as to whether contractual language is plain
    and unambiguous is itself a question of law subject to
    plenary review.’’8 (Citations omitted; internal quotation
    marks omitted.) Cruz v. Visual Perceptions, LLC, 
    311 Conn. 93
    , 101–102, 
    84 A.3d 828
    (2014).
    Because the parties have agreed that Indiana law
    governs the 1997 articles and other documents at issue
    in this case, we apply the law of that state. See, e.g.,
    Hottle v. BDO Seidman, LLP, 
    268 Conn. 694
    , 706, 
    846 A.2d 862
    (2004). Under Indiana law, ‘‘[t]he ultimate goal
    of any contract interpretation is to determine the intent
    of the parties at the time that they made the agreement.
    . . . [Indiana courts] begin with the plain language of
    the contract, reading it in context and, whenever possi-
    ble, construing it so as to render each word, phrase,
    and term meaningful, unambiguous, and harmonious
    with the whole.’’ (Citation omitted.) CitiMortgage, Inc.
    v. Barabas, 
    975 N.E.2d 805
    , 813 (Ind. 2012). ‘‘Unless
    the terms of a contract are ambiguous, they will be
    given their plain and ordinary meaning.’’ Centennial
    Mortgage, Inc. v. Blumenfeld, 
    745 N.E.2d 268
    , 273–74
    (Ind. App. 2001).
    ‘‘A contract is ambiguous if a reasonable person
    would find the contract subject to more than one inter-
    pretation.’’ (Internal quotation marks omitted.) Citi-
    Mortgage, Inc. v. 
    Barabas, supra
    , 
    975 N.E.2d 813
    . ‘‘The
    terms of a contract are not ambiguous merely because
    controversy exists between the parties concerning the
    proper interpretation of terms.’’ Centennial Mortgage,
    Inc. v. 
    Blumenfeld, supra
    , 
    745 N.E.2d 274
    .
    ‘‘If [a court] find[s] ambiguous terms or provisions
    in the contract, [it] will construe them to determine
    and give effect to the intent of the parties at the time
    they entered into the contract.’’ (Internal quotation
    marks omitted.) CitiMortgage, Inc. v. 
    Barabas, supra
    ,
    
    975 N.E.2d 813
    . ‘‘If . . . any terms of a [contract] are
    ambiguous, then the parties may introduce extrinsic
    evidence of its meaning, and interpretation of that term
    becomes a question of fact . . . .’’9 Beradi v. Hardware
    Wholesalers, Inc., 
    625 N.E.2d 1259
    , 1261 (Ind. App.
    1993). In such case, the finder of fact may consider any
    relevant extrinsic evidence of the parties’ intent. See
    University of Southern Indiana Foundation v. Baker,
    
    843 N.E.2d 528
    , 535 (Ind. 2006). This includes the cir-
    cumstances surrounding the drafting of the agreement;
    see Grant v. North River Ins. Co., 
    453 F. Supp. 1361
    ,
    1366 (N.D. Ind. 1978); statements made between the
    parties; see Washburn-Crosby Milling Co. v. Brown,
    
    56 Ind. App. 104
    , 109, 
    104 N.E. 997
    (1914); testimony
    or affidavits from attorneys who drafted the agreement;
    see University of Southern Indiana Foundation v.
    
    Baker, supra
    , 535; the conduct of the parties to the
    contract after it was formed; see Peterson v. First State
    Bank, 
    737 N.E.2d 1226
    , 1229–30 (Ind. App. 2000); Pierce
    v. Yochum, 
    164 Ind. App. 443
    , 451, 
    330 N.E.2d 102
    (1975);
    and subsequently prepared documents that reflect the
    parties’ course of performance. See Tender Loving Care
    Management, Inc. v. Sherls, 
    14 N.E.3d 67
    , 72–73 (Ind.
    App. 2014).
    In the event that review of extrinsic evidence of the
    parties’ intent fails to resolve a contractual ambiguity,
    Indiana courts then apply the doctrine of contra profer-
    entem, pursuant to which such ambiguities are con-
    strued against the drafter. See Indiana-Kentucky Elec-
    tric Corp. v. Green, 
    476 N.E.2d 141
    , 146 (Ind. App. 1985).
    This doctrine is used only as a tie breaker, however,
    after all other rules of construction have been applied
    and all indicia of the parties’ intent have been
    exhausted. See id.; see also Bradley v. Western & South-
    ern Financial Group, Docket No. 2:05 CV 39, 
    2005 WL 2709282
    , *7 (N.D. Ind. October 20, 2005) (‘‘the applica-
    tion of contra proferentem is premature in situations
    [in which] there has not yet been any attempt to resolve
    the ambiguity through the ordinary interpretive
    guides—namely, a consideration of the extrinsic evi-
    dence’’ [internal quotation marks omitted]); Bradley v.
    Western & Southern Financial 
    Group, supra
    , *7
    (explaining that, if doctrine of contra proferentem were
    applied at outset upon finding of ambiguity, then rule
    allowing for consideration of extrinsic evidence to inter-
    pret ambiguous contracts would be meaningless).
    It also is black letter law that ‘‘a contract is considered
    as a whole so as to give effect to all its provisions
    without narrowly concentrating [on] some clause or
    language taken out of context.’’ Keystone Square Shop-
    ping Center Co. v. Marsh Supermarkets, Inc., 
    459 N.E.2d 420
    , 422 (Ind. App. 1984). In addition, documents
    that are part of the ‘‘same transaction or subject matter
    will be construed together in determining the intent
    underlying the contracts.’’ Noble Roman’s, Inc. v. Ward,
    
    760 N.E.2d 1132
    , 1138 (Ind. App. 2002); see also State
    ex rel. Keith v. Common Council, 
    138 Ind. 455
    , 461, 
    37 N.E. 1041
    (1894) (contemporaneous writings so interre-
    lated as to be deemed ‘‘ ‘part and parcel of the same
    contract’ ’’ may be read as one); Salcedo v. Toepp, 
    696 N.E.2d 426
    , 435 (Ind. App. 1998) (‘‘[i]n the absence of
    anything to indicate a contrary intention, writings exe-
    cuted at the same time and relating to the same transac-
    tion [or subject matter] will be construed together in
    determining the contract’’). ‘‘Moreover, [as] long as two
    or more instruments are part of the same transaction,
    different execution times will not prohibit [the] instru-
    ments from being construed together.’’ Centennial
    Mortgage, Inc. v. 
    Blumenfeld, supra
    , 
    745 N.E.2d 275
    ;
    see also Gold v. Cedarview Management Corp., 
    950 N.E.2d 739
    , 743 (Ind. App. 2011). The contemporaneous
    document doctrine may even be applied when the docu-
    ments at issue involve different parties, although cau-
    tion must be exercised under those circumstances, and
    the determination that the documents constitute a sin-
    gle agreement must be made on a case-by-case basis.
    Compare Lily, Inc. v. Silco, LLC, 
    997 N.E.2d 1055
    ,
    1068–69 (Ind. App. 2013) (applying doctrine even
    though only one entity was party to all three agreements
    at issue), transfer denied, 
    6 N.E.3d 950
    (Ind. 2014), and
    Roberts v. Vonnegut, 
    58 Ind. App. 142
    , 146–49, 
    104 N.E. 321
    (1914) (construing contract executed between cor-
    poration’s principal shareholders together with credi-
    tors’ extension agreement), with Yessenow v. Hudson,
    Docket No. 2:08-CV-353 (PPS), 
    2012 WL 2990643
    , *6–*7
    (N.D. Ind. July 19, 2012) (declining to apply contempora-
    neous document doctrine when indemnification agree-
    ment at issue contained integration clause, was signed
    on different date than merger documents were, and was
    not necessary condition of completing merger), and
    Murat v. South Bend Lodge No. 235 of the Benevolent &
    Protective Order of Elks, 
    893 N.E.2d 753
    , 757–58 (Ind.
    App. 2008) (declining to apply contemporaneous docu-
    ment doctrine because deeds at issue served different
    purposes and did not cross-reference each other, and
    there was no evidence that parties intended them to
    form unitary contract), transfer denied, 
    915 N.E.2d 989
    (Ind. 2009); see also Beradi v. Hardware Wholesalers,
    
    Inc., supra
    , 
    625 N.E.2d 1261
    –63 (construing together
    documents signed by various corporate officers in both
    their individual and representative capacities); Gilmore
    v. Century Bank & Trust Co., 20 Mass. App. 49, 56,
    
    477 N.E.2d 1069
    (1985) (factors influencing whether
    different instruments should be read together as compo-
    nents of single transaction include ‘‘simultaneity of exe-
    cution, identity of subject matter and parties, cross-
    referencing, and interdependency of provisions’’).
    Indiana courts have applied these principles in the
    context of construing articles of incorporation in tan-
    dem with other corporate organizational documents.
    See, e.g., Bay Colony Civic Corp. v. Pearl Gasper Trust,
    
    984 N.E.2d 231
    , 235 (Ind. App. 2013); Heritage Lake
    Property Owners Assn., Inc. v. York, 
    859 N.E.2d 763
    ,
    765–66 (Ind. App. 2007); National Board of Examiners
    for Osteopathic Physicians & Surgeons, Inc. v. Ameri-
    can Osteopathic Assn., 
    645 N.E.2d 608
    , 617 (Ind. App.
    1994). This reflects the principle that ‘‘[t]he relation
    between a corporation and its stockholders is one of
    contract in which the articles of incorporation,
    [bylaws], provisions of the stock certificate, and perti-
    nent statutes are embodied.’’ Scott v. Anderson Newspa-
    pers, Inc., 
    477 N.E.2d 553
    , 558 (Ind. App. 1985).
    With these principles in mind, we turn our attention
    to the present dispute. The plaintiffs argue that (1)
    the 1997 articles represent the entirety of the relevant
    agreement, and (2) those articles unambiguously pro-
    vide that the plaintiffs were members of Anthem Insur-
    ance who were entitled to a share of the demutuali-
    zation proceeds. Because the relevant contractual lan-
    guage is unambiguous, the plaintiffs further contend,
    the trial court improperly considered extrinsic evidence
    of the parties’ intent. The insurance company defen-
    dants respond that the relevant agreement encom-
    passes not only the 1997 articles but also the other
    merger documents. The insurance company defendants
    further maintain that the 1997 articles, both standing
    alone and when read in conjunction with the other
    merger documents, are ambiguous with respect to the
    plaintiffs’ membership status and entitlement to demu-
    tualization proceeds. The insurance company defen-
    dants therefore contend that the trial court properly
    looked to extrinsic evidence to resolve this ambiguity.
    We agree with the insurance company defendants
    that the 1997 articles and the other merger documents
    are part and parcel of the same transaction and that,
    when read together, they are ambiguous as to the plain-
    tiffs’ eligibility for membership in Anthem Insurance
    and their entitlement to a share of the demutualization
    proceeds relating to the 1999 group policy.10 Accord-
    ingly, we conclude that the trial court properly con-
    sulted extrinsic evidence of their meaning.
    A
    Whether the Merger Documents Were Part
    and Parcel of a Single Transaction
    We first consider whether the trial court correctly
    concluded that the 1997 articles were ‘‘part and parcel
    of the merger transaction’’ and, therefore, that it was
    appropriate to construe those articles in tandem with
    the other merger documents. As we previously noted,
    Indiana courts consider a number of factors when
    applying the contemporaneous document doctrine.
    These include (1) whether the documents were exe-
    cuted at the same time and by the same parties, (2)
    whether they address the same matter or transaction,
    (3) whether they reference or incorporate one another,
    (4) whether the execution of each document or fulfill-
    ment of the promises contained therein is a precondi-
    tion for that of the others, and (5) whether the docu-
    ments purport on their face to be fully integrated
    agreements. In the present case, most if not all of these
    factors favor construing the 1997 articles and the other
    merger documents as components of a single agree-
    ment.
    First, there is little doubt that the 1997 articles and the
    other merger documents all were drafted in conjunction
    with the same transaction, namely, the 1997 merger
    between Anthem Insurance and Blue Cross. Indeed, the
    plaintiffs concede as much in their primary appellate
    brief: ‘‘In connection with the proposed merger,
    [Anthem Insurance’s] attorney . . . drafted the agree-
    ment to merge . . . the plan and joint agreement of
    merger . . . the guaranty policies . . . and the [1997]
    . . . articles . . . .’’ (Citations omitted; emphasis
    added.) Notably, the plaintiffs also acknowledge that
    the membership rules contained in Anthem Insurance’s
    existing articles of incorporation needed to be revised
    in order to facilitate the merger with Blue Cross.
    Second, the 1997 articles and the other merger docu-
    ments contain multiple references to each other. Sec-
    tion 7.6 (b) of the 1997 articles provides in relevant part
    that, following a merger, former members of a qualified
    mutual insurer shall ‘‘become members of [Anthem
    Insurance] pursuant to, and shall be entitled to receive
    guaranty insurance policies/membership certificates
    . . . . Each such guaranty insurance policy/member-
    ship certificate shall continue in effect and confer mem-
    bership and other rights . . . .’’ Section 8.5 then lays
    out the ‘‘[r]ights of [m]embers with [g]uaranty [p]oli-
    cies’’ in the event that Anthem Insurance were ever
    to demutualize. That section provides in relevant part:
    ‘‘Any member of [Anthem Insurance] who has an indi-
    vidual guaranty insurance policy of [Anthem Insurance]
    or a certificate of membership issued under a group
    guaranty insurance policy . . . shall be entitled, upon
    any . . . demutualization . . . of [Anthem Insurance]
    . . . to distributions in the form of cash, securities or
    other assets, and other membership and other rights
    and privileges . . . .’’ It is clear, then, that the 1997
    articles envision that guaranty policies, such as those
    that were attached to the agreement to merge and sub-
    sequently provided to Blue Cross members, are the
    mechanism by which Blue Cross group policyholders
    were converted into members of the merged entity and
    invested with proprietary rights in the event of a subse-
    quent demutualization. Section 7.6 (c) (2) of the 1997
    articles also references the joint agreement of merger
    pursuant to which Anthem Insurance would consum-
    mate a merger with a qualified mutual insurer such as
    Blue Cross and provides that the merger agreement
    may restrict the conditions under which holders of cer-
    tain types of insurance policies may become members
    of Anthem Insurance.
    At the same time, there are numerous references to
    the 1997 articles throughout the agreement to merge,
    as well as in the plan and joint agreement of merger
    and the guaranty policy. For example, the agreement
    to merge provides that ‘‘the [m]erger shall constitute
    a ‘[q]ualified [m]embership [m]erger’ under [Anthem
    Insurance’s 1997 articles]’’; the guaranty policy shall
    grant rights in the event of demutualization of the sur-
    viving corporation as set forth in the 1997 articles; and
    the guaranty policy shall grant voting rights in Anthem
    Insurance and rights in the event of demutualization as
    provided under Indiana’s insurance law and in the 1997
    articles. More significantly, an entire article of the
    agreement to merge, article IV, is addressed to the 1997
    articles and the bylaws of the surviving corporation.
    Section 4.1 (a) requires that, ‘‘[a]t or before the [e]ffec-
    tive [t]ime, the [a]rticles of [i]ncorporation of Anthem
    [Insurance] shall be amended and restated substantially
    in the form of the [t]hird [a]mended and [r]estated [a]rti-
    cles of [i]ncorporation attached . . . as [e]xhibit C
    . . . . Such [a]rticles of [i]ncorporation shall, together
    with the provisions of the [p]lan and [j]oint [a]greement
    of [m]erger, among other matters: (1) provide to each
    former [Blue Cross] [m]ember the rights described in
    Section 3.4 [of the agreement to merge] . . . .’’ As
    required by that section, a proposed form of the 1997
    amended articles was attached to the agreement to
    merge as exhibit C. Section 4.1 (b) also requires an
    amendment of the Anthem Insurance bylaws. The guar-
    anty policies and the plan and joint agreement of
    merger, which also were attached as exhibits to the
    agreement to merge, likewise reference the 1997
    articles.11
    Third, and relatedly, it is clear that the agreement to
    merge not only referenced the 1997 articles but required
    their amendment as a condition of the merger. One of
    the covenants on which the agreement was predicated
    was that Anthem Insurance would amend the 1997 arti-
    cles, substantially in the form proposed in exhibit C,
    prior to the effective date of the merger. As we pre-
    viously discussed, § 4.1 defined the rights that the 1997
    articles needed to provide with respect to members of
    the surviving entity. Moreover, § 9.1 of the agreement
    to merge required that ‘‘[Blue Cross] and Anthem [Insur-
    ance] . . . each take all actions necessary under their
    respective [c]ertificate or [a]rticles of [i]ncorporation
    and [bylaws] to convene a meeting of their respective
    policyholders/members . . . to vote on the [m]erger
    (and with respect to Anthem [Insurance], the adoption
    of [Anthem Insurance’s] [t]hird [a]mended and
    [r]estated [a]rticles of [i]ncorporation) . . . .’’
    (Emphasis added.) Section 9.3 made the completion of
    the merger conditional on the favorable outcome of
    those votes. Finally, article X of the agreement to merge,
    which is entitled ‘‘Conditions Precedent to Obligations
    of [Blue Cross] and Anthem [Insurance],’’ expressly pro-
    vided that ‘‘[t]he obligations of [Blue Cross] and Anthem
    [Insurance] to consummate the [m]erger shall be sub-
    ject to fulfillment as of or before the [e]ffective [t]ime
    of each of the following conditions . . . .
    ‘‘The [a]rticles of [i]ncorporation of the [s]urviving
    [c]orporation shall, prior to or as of the [e]ffective
    [t]ime, be substantially in the form attached hereto as
    [e]xhibit C . . . .’’ Section 11.2 further required that
    Anthem Insurance comply with all of its obligations
    under the agreement to merge as a condition precedent
    to the obligations of Blue Cross. It is clear, then, that
    Anthem Insurance’s adoption of the 1997 articles was
    inextricably bound up with the merger agreement. This
    is true even though the 1997 articles do not specifically
    refer to the Blue Cross merger and were drafted to
    accommodate not only that agreement but also any
    similar mergers that might be consummated in the
    future.
    Fourth, the 1997 articles do not contain an integration
    clause or otherwise purport to be a complete expression
    of the agreement between Anthem Insurance and its
    members. Although the agreement to merge does con-
    tain an integration clause, that document also incorpo-
    rates as attached exhibits both the 1997 articles and the
    other merger documents. Accordingly, the integration
    clause does not indicate that the parties to the
    agreement to merge intended the agreement to be con-
    strued separate and apart from the 1997 articles. See
    Benkelman v. Baseline Engineering Corp., Docket No.
    7:15CV5003, 
    2016 WL 1092476
    , *5 (D. Neb. March 21,
    2016) (attached agreement treated as part of inte-
    grated contract).12
    It is apparent, then, that the 1997 articles are insepara-
    bly intertwined with the other merger documents.
    Amendment of the 1997 articles by the members of
    Anthem Insurance was necessary to facilitate the
    merger and, therefore, was made an express condition
    precedent to the completion of the merger. As the trial
    court found, ‘‘[t]he [1997] articles were an essential part
    of the agreement to merge, and the merger could not
    take place without the articles being approved.’’ At the
    same time, the guaranty policies were the mechanism
    by which the membership rights afforded by the 1997
    articles were extended to both former members of Blue
    Cross and new enrollees in New CT-Blue. For these
    reasons, the trial court correctly concluded that the
    1997 articles and the other merger documents were part
    and parcel of a single transaction.
    The plaintiffs reject this conclusion largely because
    (1) the other merger documents were signed on differ-
    ent dates than the 1997 articles were, and (2) whereas
    Anthem Insurance and Blue Cross were parties to the
    other merger documents, the parties to the 1997 articles
    were Anthem Insurance and its members. To the extent
    that these contentions are accurate, we are not per-
    suaded that they tip the scales in favor of treating the
    other merger documents as extrinsic evidence vis-a-vis
    the 1997 articles. With respect to the dates of signing,
    the relevant timeline of events is as follows:
    (1) Spring, 1996: Blue Cross and Anthem Insurance
    enter into merger negotiations;
    (2) October 17, 1996: Anthem Insurance’s board of
    directors casts a preliminary vote to approve the
    1997 articles;
    (3) November 8, 1996: Blue Cross and Anthem Insur-
    ance sign the agreement to merge, with the proposed
    1997 articles and guaranty policy attached, and approval
    of the merger is sought from the Connecticut Insur-
    ance Department;
    (4) December 19, 1996: Anthem Insurance’s board of
    directors casts the final vote to approve the 1997
    articles;
    (5) March 27, 1997: Anthem Insurance members vote
    to adopt the 1997 articles, and Blue Cross members
    vote to approve the merger;13
    (6) April 17, 1997: The 1997 articles are executed;
    (7) May 27, 1997: The Commissioner of the Indiana
    Department of Insurance approves the 1997 articles;
    and
    (8) July 31, 1997: Anthem Insurance and Blue Cross
    sign the plan and joint agreement of merger, and the
    Connecticut Insurance Department approves the
    merger, which becomes effective.
    In light of the complexity of these transactions and
    the need for multiple rounds of approval by Anthem
    Insurance’s board of directors and membership of both
    entities, in addition to approval by regulatory agencies
    in two states, the fact that all of the relevant documents
    were not executed simultaneously on one date does
    not compel the conclusion that they were not intended
    to be part and parcel of a single agreement. Rather, the
    timeline suggests that drafting and approval of the 1997
    articles transpired over a seven month period that dove-
    tailed closely with the multistep approval of the merger.
    It is noteworthy in this respect that the membership of
    Blue Cross voted to approve the merger on the very
    same date that their Anthem Insurance counterparts
    signed off on the 1997 articles.
    Nor are we persuaded by the plaintiffs’ argument that
    the other merger documents are extrinsic to the 1997
    articles because different parties entered into those
    agreements. It is true that, technically, the 1997 arti-
    cles—as well as the guaranty policy—represent agree-
    ments between Anthem Insurance and its members,
    whereas the agreement to merge and the plan and joint
    agreement of merger were agreements between Anthem
    Insurance and Blue Cross. The reality, however, is that
    Anthem Insurance’s attorney drafted each of these doc-
    uments, and each effectively required the approval of
    Anthem Insurance, Blue Cross, and their respective
    members. As we previously noted, the 1997 articles and
    the guaranty policy were attached to the agreement
    to merge and thereby incorporated into the contract
    between Anthem Insurance and Blue Cross. At the same
    time, the agreement to merge, as well as the plan and
    joint agreement of merger, required the approval not
    only of Blue Cross and Anthem Insurance, but also of
    Anthem Insurance’s membership.14 For these reasons,
    the fact that the Anthem Insurance members them-
    selves were not signatories to each of the merger docu-
    ments, or that Blue Cross was not a signatory to the
    1997 articles, does not bar the conclusion that these
    documents were part and parcel of a single transaction.
    B
    Whether the Merger Documents Were Ambiguous
    Having concluded that the trial court correctly deter-
    mined that the 1997 articles must be construed in tan-
    dem with the other merger documents, we next turn
    our attention to the question whether the court properly
    determined that those documents, when read together,
    are ambiguous with respect to whether the plaintiffs
    were Anthem Insurance members entitled to a share
    of the demutualization proceeds.15 We begin by setting
    forth the relevant contract language.
    1
    1997 Articles
    Because the plaintiffs’ claims arise primarily from
    rights allegedly bestowed on them by the 1997 articles,
    we begin by setting forth the relevant provisions of that
    document. Article VII of the 1997 articles defines the
    criteria for membership in Anthem Insurance. Section
    7.1 provides that the members of Anthem Insurance
    shall be ‘‘(a) all persons to whom certificates of mem-
    bership are issued, and (b) all persons who have the
    rights of members granted to them under insurance
    agreements made between [Anthem Insurance] and
    employers, or group agents, of such persons acting for
    and on their behalf. Membership . . . shall be evi-
    denced by certificates of membership . . . .’’ Sections
    7.2 through 7.5 address the membership rights of former
    members of two other mutual insurance companies that
    merged with Anthem Insurance prior to 1997 and whose
    membership rules had been similar to those of Blue
    Cross, with group policyholders rather than individual
    enrollees possessing membership rights. Section 7.6
    essentially represents a generic version of those provi-
    sions, which allowed Anthem Insurance to accommo-
    date the Blue Cross merger and to honor Blue Cross’
    membership rules, but was written in general terms so
    that future ‘‘ ‘[q]ualified [m]embership [m]ergers’ ’’ with
    mutual insurance companies similar to Blue Cross
    could be accomplished without further need to amend
    the articles of incorporation.
    Section 7.6 (a) defines, among other things, the quali-
    fied membership mergers to which § 7.6 applies. It is
    undisputed that the merger between Anthem Insurance
    and Blue Cross was a qualified membership merger
    and that, following the merger, New CT-Blue was a
    ‘‘ ‘[q]ualified [m]embership [s]ubsidiary’ ’’ of Anthem
    Insurance as defined in § 7.6 (a) (3).
    Section 7.6 (b) of the 1997 articles is entitled ‘‘Former
    Members of Qualified Mutual Insurers.’’ It addresses
    the membership rights of groups and individuals who
    were mutual members of companies such as Blue Cross
    at the time of merger. Section 7.6 (b) provides: ‘‘Upon
    effectiveness of a [q]ualified [m]embership [m]erger, all
    of the members of the [q]ualified [m]utual [i]nsurer shall
    (1) retain their insurance and/or medical and health
    benefits under [q]ualified [c]ontracts, and (2) become
    members of [Anthem Insurance] pursuant to, and shall
    be entitled to receive guaranty insurance policies/mem-
    bership certificates issued by [Anthem Insurance] in
    respect of such [q]ualified [c]ontracts. Each such guar-
    anty insurance policy/membership certificate shall con-
    tinue in effect and confer membership and other rights
    in [Anthem Insurance] as long as . . . the related
    [q]ualified [c]ontract is in effect, or has been renewed,
    amended, or replaced, without a lapse in coverage, by
    any insurance policy or health care benefits contract
    issued by a [q]ualified [m]embership [s]ubsidiary for
    that [q]ualified [m]embership [m]erger . . . .’’ It is
    undisputed that the state’s Care Plus policy with Blue
    Cross was a qualified contract as defined in the 1997
    articles.
    Section 7.6 (c) of the 1997 articles is entitled ‘‘New
    Members Under Post-Merger Policies, Contracts and
    Certificates of Qualified Membership Subsidiaries.’’
    Subdivision (1) of § 7.6 (c) provides in relevant part:
    ‘‘Except as set forth in [Section] 7.6 (c) (2) and (3) . . .
    each holder of an individual insurance policy or health
    care benefits contract, and each holder of a certificate
    of coverage under a group insurance policy or health
    care benefits contract, which individual or group policy
    or contract is originally issued by a [q]ualified [m]em-
    bership [s]ubsidiary for that [q]ualified [m]embership
    [m]erger after the effectiveness of such [m]erger, shall
    be entitled to receive a guaranty insurance policy or
    certificate of membership from [Anthem Insurance].
    Each such individual guaranty insurance policy and
    each such certificate of membership issued under a
    group guaranty insurance policy shall grant the follow-
    ing rights: (i) voting rights on all matters that come
    before the members of an Indiana domestic mutual
    insurance company under Indiana [i]nsurance [l]aw
    . . . (ii) a guarantee of the benefits provided under the
    insurance policy or health care benefits contract issued
    by the [q]ualified [m]embership [s]ubsidiary; and (iii)
    rights in the event of a liquidation, merger, consolida-
    tion, demutualization or conversion of [Anthem Insur-
    ance] described in Section 8.1, as provided under the
    Indiana [i]nsurance [l]aw and as set forth in [a]rticle
    VIII.’’
    Subdivision (3) of § 7.6 (c) provides in relevant part:
    ‘‘Section 7.6 (c) (1) shall apply only with respect to
    insurance policies and health care benefits contracts,
    and certificates of coverage thereunder, issued by a
    [q]ualified [m]embership [s]ubsidiary after the effec-
    tiveness of the [q]ualified [m]embership [m]erger and
    shall not apply with respect to [q]ualified [c]ontracts
    (or certificates of coverage thereunder) as described
    in Section 7.6 (b), or any insurance policy or health
    care benefits contract issued as a renewal, amendment
    or replacement of such [q]ualified [c]ontracts (or certif-
    icates of coverage thereunder) where there was no
    lapse of coverage.’’ (Emphasis added.)
    Article VIII of the 1997 articles, which is entitled,
    ‘‘Liquidation, Merger or Demutualization,’’ addresses
    the rights of Anthem Insurance members in the event
    of demutualization or other corporate change. Section
    8.1 provides in relevant part that ‘‘[a]ll members of
    [Anthem Insurance] shall be entitled, upon any . . .
    demutualization or conversion of [Anthem Insurance]
    from a mutual to a stock insurance company, to such
    distributions in the form of cash, securities or other
    assets, and such other membership and other rights
    and privileges, as may from time to time be provided
    by the Indiana [i]nsurance [l]aw. . . .’’
    Section 8.4 of the 1997 articles specifically addresses
    the rights of the former members of a qualified mutual
    insurer such as Blue Cross in the event of a subsequent,
    postmerger demutualization of Anthem Insurance. Sec-
    tion 8.4 (a) provides in relevant part: ‘‘By virtue of a
    [q]ualified [m]embership [m]erger . . . all of the mem-
    bers of the [q]ualified [m]utual [i]nsurer become mem-
    bers of [Anthem Insurance], and all of the assets and
    surplus of the [q]ualified [m]utual [i]nsurer become
    assets and surplus of [Anthem Insurance]. Accordingly,
    upon any . . . demutualization or conversion of
    [Anthem Insurance] . . . in the determination of the
    rights of any member of [Anthem Insurance] who was
    immediately prior to a [q]ualified [m]embership
    [m]erger, a member of the [q]ualified [m]utual [i]nsurer,
    full account and credit shall be given to such member of
    its former interests in that [q]ualified [m]utual [i]nsurer,
    which rights shall reflect and include in full . . . the
    value of such member’s interests in that [q]ualified
    [m]utual [i]nsurer immediately prior to the [q]ualified
    [m]embership [m]erger . . . .’’ Section 8.5 of the 1997
    articles further provides that an Anthem Insurance
    member holding a guaranty policy or certificate of mem-
    bership issued by a qualified membership subsidiary is
    entitled, in the event of a demutualization, to asset
    distributions equivalent to those to which a member
    would be entitled if he or she had held a policy or
    certificate issued by Anthem Insurance itself.
    Section 8.6 of the 1997 articles is entitled ‘‘Rights of
    Members with Substituted Policies’’ and further defines
    the rights of members of a qualified mutual insurer,
    such as Blue Cross, in the event of a postmerger demu-
    tualization or other transaction. That section provides
    in relevant part: ‘‘Upon any . . . demutualization or
    conversion of [Anthem Insurance] . . . in the determi-
    nation of the rights of any member of [Anthem Insur-
    ance] who has had two or more insurance policies or
    certificates of membership, including renewed,
    amended or replaced policies or certificates, issued by
    [Anthem Insurance] successively without any lapse in
    coverage, full account and credit shall be given to such
    member of the value of such member’s interest in
    [Anthem Insurance] under all such policies or certifi-
    cates. Without limiting the foregoing . . . (iii) in the
    case of each member holding a [q]ualified [m]embership
    [s]ubsidiary insurance policy or health care benefits
    contract who was a member of the [q]ualified [m]utual
    [i]nsurer immediately prior to the [q]ualified [m]ember-
    ship [m]erger and whose [q]ualified [m]embership
    [s]ubsidiary contract has been renewed, amended or
    replaced by any policy or contract of a [q]ualified
    [m]embership [s]ubsidiary in that [q]ualified [m]ember-
    ship [m]erger without a lapse in coverage, such value
    shall reflect and include in full the value of such mem-
    ber’s interest in [Anthem Insurance] immediately prior
    to the renewal, amendment or replacement . . . .’’
    Finally, § 8.7 of the 1997 articles provides: ‘‘Whenever
    any corporate transaction or event affects the members’
    interests in [Anthem Insurance], consideration is to be
    given to the members of [Anthem Insurance] who were
    . . . (iii) immediately prior to a [q]ualified [m]ember-
    ship [m]erger, members of the [q]ualified [m]utual
    [i]nsurer or [Anthem Insurance], respectively, such that
    their individual interests in the [q]ualified [m]utual
    [i]nsurer or [Anthem Insurance], respectively, immedi-
    ately prior to the [q]ualified [m]embership [m]erger are
    fully and equitably reflected.’’
    2
    Other Merger Documents
    We next set forth the relevant provisions of the other
    merger documents. Turning our attention to the
    agreement to merge, we note that §§ 3.3 and 3.4 of that
    document address the rights of former Blue Cross group
    policyholders after the merger, whereas § 8.6 (c)
    addresses the rights of holders of new New CT-Blue
    group policies issued after the merger. Section 3.3 pro-
    vides in relevant part that ‘‘each [Blue Cross] [m]ember
    shall, by virtue of the [m]erger and without any action
    on the part of such person, receive in exchange for
    such person’s interests in [Blue Cross] . . .
    ‘‘(b) a new [s]urviving [c]orporation guaranty policy
    (the forms of which policies shall be substantially as
    attached hereto as [e]xhibit B) which shall grant to
    such person the rights described in Section 3.4.’’
    Section 3.4 in turn provides in relevant part: ‘‘All
    guaranty policies issued by the [s]urviving [c]orporation
    pursuant to Section 3.3 shall grant the following rights:
    ‘‘(a) voting rights . . .
    ‘‘(b) insurance benefits . . . and
    ‘‘(c) rights in the event of the . . . demutualization
    of the [s]urviving [c]orporation as set forth herein . . .
    and in the [s]urviving [c]orporation’s . . . [a]rticles of
    [i]ncorporation . . . . The [s]urviving [c]orporation
    guaranty insurance policy shall continue in effect as
    long as (1) the health insurance policy or healthcare
    benefits contract assumed or issued by New CT-Blue
    . . . is in effect or has been renewed, amended, or
    replaced, without a lapse in coverage, by any New CT-
    Blue health insurance policy or healthcare benefits con-
    tract . . . .’’16
    With respect to membership rights arising from new
    group insurance policies issued by New CT-Blue after
    the merger, § 8.6 (c) of the agreement to merge provides
    in relevant part: ‘‘Except as set forth below . . . each
    holder of a certificate of coverage under a group New
    CT-Blue insurance policy or healthcare benefits con-
    tract originally issued . . . after the [e]ffective [t]ime,
    shall be entitled to receive an Anthem [Insurance] certif-
    icate of membership issued under an Anthem [Insur-
    ance] group guaranty insurance policy. Each such . . .
    certificate of membership . . . shall grant . . . (1)
    voting rights . . . (2) insurance benefits . . . and (3)
    rights in the event of the . . . demutualization of
    Anthem [Insurance] . . . .
    ‘‘This Section 8.6 (c) shall apply only with respect to
    New CT-Blue insurance policies or healthcare benefits
    contracts (and certificates of coverage thereunder)
    originally issued after the [e]ffective [t]ime, and shall
    not apply to New CT-Blue insurance policies or health-
    care benefits contracts (or certificates of coverage
    thereunder) required to be assumed or issued pursuant
    to Article III. Nothing contained in . . . Section 8.6 (c)
    shall affect or alter in any manner the obligations of
    the parties under [a]rticle III.’’
    In addition, § 4.1 of the agreement to merge requires
    that ‘‘the [a]rticles of [i]ncorporation of Anthem [Insur-
    ance] . . . be amended and restated substantially in
    the form of the [t]hird [a]mended and [r]estated [a]rti-
    cles of [i]ncorporation attached . . . as [e]xhibit C
    . . . . Such [a]rticles of [i]ncorporation shall, together
    with the provisions of the [p]lan and [j]oint [a]greement
    of [m]erger, among other matters: (1) provide to each
    former [Blue Cross] [m]ember the rights described in
    Section 3.4; (2) provide to the extent applicable the
    rights described in Section 3.4 to:
    ‘‘(i) each future New CT-Blue certificate holder under
    a group insurance policy or healthcare benefits contract
    originally issued after the [e]ffective [t]ime, and
    ‘‘(ii) each future holder of [a] New CT-Blue individual
    insurance policy or healthcare benefits contract origi-
    nally issued after the [e]ffective [t]ime,
    ‘‘who also holds a [s]urviving [c]orporation insurance
    policy or membership certificate that guarantees the
    benefits granted by such New CT-Blue certificate or
    individual policy or contract . . . .’’
    We next set forth the relevant language contained in
    the Anthem Insurance guaranty policy that was sent to
    Blue Cross group policyholders, including the state, at
    the time of the merger. Exhibit B-2 to the agreement
    to merge is entitled ‘‘[FORM] GROUP GUARANTY
    HEALTH POLICY AND CERTIFICATE OF MEMBER-
    SHIP.’’ Article IV of the guaranty policy addresses mem-
    bership rights and provides in relevant part: ‘‘As long
    as this [p]olicy is in effect, the Anthem [Insurance]
    [m]ember shall be entitled to all of the rights of member-
    ship in Anthem [Insurance] accorded to members of a
    mutual insurance company under Indiana law, includ-
    ing the right to one vote . . . and equity rights in the
    event of . . . demutualization as provided in [Anthem
    Insurance’s] [a]rticles of [i]ncorporation from time to
    time in effect. Such equity rights . . . shall accrue
    solely to the Anthem [Insurance] [m]ember. No
    [e]nrollee or dependent of an [e]nrollee shall receive
    any equity rights by virtue of being an [e]nrollee or
    dependent of an [e]nrollee. As provided in [Anthem
    Insurance’s] [a]rticles of [i]ncorporation from time to
    time in effect, the Anthem [Insurance] [m]ember’s rights
    shall reflect and include in full the value of the Anthem
    [Insurance] [m]ember’s interest in Blue Cross . . .
    immediately prior to the merger . . . together with any
    subsequent accretions or reductions to that value . . .
    resulting from changes in the entire net worth of
    Anthem [Insurance] on a consolidated basis following
    the merger.’’
    The ‘‘[d]efinitions’’ section of the guaranty policy fur-
    ther provides that the ‘‘CT-Blue Contract . . . shall
    include any renewal or amendment, or any replacement
    thereof issued by [New] CT-Blue,’’ and that an
    ‘‘[e]nrollee . . . means each person who has enrolled
    for insurance or health care benefits under the . . .
    [c]ontract and who was eligible to enroll for such bene-
    fits . . . because of the person’s status as (1) an
    employee of the Anthem [Insurance] [m]ember, if the
    Anthem [Insurance] [m]ember is an employer . . . .’’
    Finally, article VI of the guaranty policy governs the
    term and termination of that policy and provides that,
    ‘‘[u]nless cancelled . . . this [p]olicy shall remain in
    full force and effect for as long as the . . . [c]ontract
    is in effect, or has been renewed, amended, or replaced
    by any [New] CT-Blue [c]ontract without a lapse in
    coverage, and the Anthem [Insurance] [m]embership
    [f]ees are paid prior to the expiration of the [g]race
    [p]eriod set forth in [a]rticle VII of this [p]olicy.’’
    3
    Arguments and Analysis
    The plaintiffs contend that the plain language of the
    1997 articles provides that they were members of
    Anthem Insurance who were entitled to a share of the
    demutualization proceeds. Specifically, the plaintiffs
    rely on the facts that (1) they undisputedly held certifi-
    cates of coverage under the 1999 group policy, which
    was issued by New CT-Blue in 1999 and was, therefore,
    a postmerger policy of a qualified membership subsid-
    iary, and (2) pursuant to § 7.6 (c) (1) of the 1997 articles,
    unless one of two exceptions applies, ‘‘each [individual]
    holder of a certificate of coverage under a group insur-
    ance policy . . . originally issued by a [q]ualified
    [m]embership [s]ubsidiary . . . after the . . .
    [m]erger . . . [is] entitled to receive a . . . certificate
    of membership from [Anthem Insurance that shall
    grant] . . . rights in the event of a . . . demutualiza-
    tion . . . .’’ It is undisputed that the first exception to
    § 7.6 (c) (1), which is contained in § 7.6 (c) (2), does not
    apply. The plaintiffs maintain that the second exception,
    which is contained in § 7.6 (c) (3), also does not apply.
    Subdivision (3) provides that § 7.6 (c) (1) ‘‘shall not
    apply with respect to . . . any insurance policy or
    health care benefits contract issued as a renewal,
    amendment or replacement’’ of qualified contracts held
    by members of a qualified mutual insurer such as Blue
    Cross prior to the merger. (Emphasis added.) In other
    words, if New CT-Blue issued a new group insurance
    policy after the merger of Anthem Insurance and Blue
    Cross, the employees who obtained coverage under that
    group policy were entitled to membership in Anthem
    Insurance unless the ‘‘new’’ policy was merely issued
    as a renewal, amendment, or replacement for a Blue
    Cross group policy that was in place before the merger.
    In that case, the new policy would be treated as a
    continuation of the premerger policy, and Blue Cross’
    premerger membership rules—pursuant to which the
    group policyholder, rather than its employees, is the
    member—would remain in effect.
    In the present case, it is undisputed that, although
    the 1999 group policy did ultimately replace the state’s
    Care Plus policy, it was not issued as a replacement
    for that policy. Rather, the 1999 group policy was issued
    in July, 1999, as a replacement for the ASO agreement,
    which the parties agree was not a qualified insurance
    policy. The 1999 group policy coexisted with Care Plus
    for one year until Care Plus was terminated in July,
    2000, and its enrollees defaulted into the 1999 group
    policy. Under the plaintiffs’ theory of the case, then,
    the exception contained in § 7.6 (c) (3) of the 1997
    articles does not apply to state employees who obtained
    coverage under the 1999 group policy, and a straightfor-
    ward reading of § 7.6 conclusively establishes that they
    became Anthem Insurance members upon receiving
    certificates of coverage under that policy.17
    Although the plaintiffs would conclude the analysis
    there, they also argue that, to the extent that the other
    merger documents are relevant, those documents sup-
    port their reading of the 1997 articles. With respect to
    the agreement to merge, for example, the plaintiffs point
    to § 4.1 (a), which requires that the 1997 articles provide
    membership rights to holders who are issued New CT-
    Blue group certificates after the merger. The plaintiffs
    also direct our attention to § 8.6 (c) of the agreement
    to merge, which entitles such holders to receive certifi-
    cates of membership.
    In general, the view of the plaintiffs is that the merger
    documents contain two parallel sets of provisions. One
    set, exemplified by § 7.6 (b) of the 1997 articles, extends
    membership rights to former members of qualified
    mutual insurers, including policyholders, such as the
    state, that held group policies under and were members
    of Blue Cross. Those provisions ensure that, as long as
    those policies remain in effect, the policyholders retain
    the same equity interests in the merged entity as they
    held in Blue Cross prior to the merger. The other set of
    provisions, exemplified by § 7.6 (c) of the 1997 articles,
    extends membership rights to individual enrollees in
    new group health care insurance plans issued by quali-
    fied membership subsidiaries such as New CT-Blue
    after the merger and allows those enrollees, upon demu-
    tualization, to recoup the equity generated by their post-
    merger participation in Anthem Insurance. The plain-
    tiffs contend that nothing in any of the merger docu-
    ments suggests that these two sets of provisions are
    mutually exclusive, or that a single Blue Cross cus-
    tomer18 such as the state cannot simultaneously hold
    (1) premerger group policies, under which the employer
    qualifies as an Anthem Insurance member, and (2) unre-
    lated, postmerger group policies, under which the
    employee enrollees qualify as members.
    By contrast, the insurance company defendants con-
    tend, and we agree, that a reasonable person could
    interpret the merger documents differently and, there-
    fore, that the documents are ambiguous with respect
    to the membership issue. Their view is that group poli-
    cyholders that were Blue Cross members before the
    merger became members of Anthem Insurance upon
    their receipt of guaranty policies or membership certifi-
    cates and that, thereafter, as long as they retained their
    membership status (by maintaining a qualified policy
    without lapse), their equity rights in Anthem Insurance
    extended to any group policies that they held, including
    new, unrelated policies issued by New CT-Blue. In other
    words, those groups were grandfathered under the pre-
    merger Blue Cross membership rules with respect to
    any policies that they initially held or later came to
    acquire.
    In the present case, the state was issued a member-
    ship certificate in Anthem Insurance by virtue of its
    Care Plus policy and retained its membership status
    until the demutualization because Care Plus was
    replaced by the 1999 group policy. For this reason, the
    insurance company defendants contend, the premerger
    Blue Cross membership rules that were preserved in
    § 7.6 (b) of the 1997 articles apply to all enrollees in the
    1999 group policy. This is true, the insurance company
    defendants maintain, regardless of the fact that the 1999
    group policy initially was issued as a new group policy
    postmerger, rather than as a replacement for a pre-
    merger policy, and initial enrollees may not have been
    certificate holders under a state Blue Cross plan prior
    to the merger.
    Several provisions of the merger documents support
    the interpretation advanced by the insurance company
    defendants, or, at minimum, create an ambiguity with
    respect to the membership question. First and foremost,
    article IV of the guaranty policy, a copy of which was
    given to the state and other former Blue Cross members,
    clearly provides that ‘‘[a]s long as this [p]olicy is in
    effect, the Anthem [Insurance] [m]ember shall be enti-
    tled to all of the rights of membership in Anthem [Insur-
    ance] . . . including . . . equity rights in the event of
    . . . demutualization . . . . Such equity rights . . .
    shall accrue solely to the Anthem [Insurance] [m]ember.
    No [e]nrollee . . . shall receive any equity rights by
    virtue of being an [e]nrollee . . . .’’ (Emphasis added.)
    According to its plain terms, then, the certificate of
    membership, which represents the state’s membership
    contract with Anthem Insurance, provides that only the
    Anthem Insurance member and no enrollees will be
    entitled to equity rights in Anthem Insurance, as long
    as the guaranty policy remains in effect. See footnote
    16 of this opinion.
    The plaintiffs respond that article IV of the guaranty
    policy merely indicates that no individual was entitled
    to become a member or receive equity rights by virtue of
    being an enrollee in Care Plus. They contend, however,
    that they are entitled to membership by virtue of being
    enrollees in the 1999 group policy.
    Although the plaintiffs’ interpretation of article IV is
    perhaps plausible, it is certainly not the only reasonable
    reading of that provision, let alone the better one. Noth-
    ing in the guaranty policy indicates that the membership
    and equity rights afforded by article IV are restricted
    to a particular underlying health care benefits contract.
    Moreover, although the definitions section of the guar-
    anty policy does suggest that an attached schedule was
    to have identified particular benefits contracts to which
    other articles of the guaranty policy applied, the plain-
    tiffs concede that the schedule that was delivered to
    the state was not completed. The record also does not
    contain any indication whether the 1999 group policy
    was later added to that schedule.19
    We note in this respect that the record does contain
    a corresponding form group guaranty health care policy
    that was given to policyholders who obtained new
    group policies from New CT-Blue after the merger. The
    section of that guaranty policy corresponding to article
    IV provides that ‘‘equity rights . . . shall accrue solely
    to the Anthem [Insurance] [m]ember. No [p]olicyholder
    . . . shall receive any equity rights by virtue of being
    a [p]olicyholder . . . .’’ It is undisputed that the state
    never received any such guaranty policy in connection
    with the 1999 group policy. Accordingly, we conclude
    that it is at least ambiguous whether article IV of the
    group guaranty health care policy precluded individual
    enrollees in any state Blue Cross health care plans
    from obtaining membership and equity rights in Anthem
    Insurance, by virtue of their enrollment therein, as long
    as the state maintained its membership status.
    Second, the insurance company defendant’s interpre-
    tation of the guaranty policy finds support in the
    agreement to merge. Specifically, §§ 3.3 and 3.4 of the
    agreement to merge appear to delink the membership
    and equity rights afforded by a guaranty policy from
    the specific underlying health care insurance policy or
    policies. Subsection (a) of § 3.3 provides that, by virtue
    of the merger, Blue Cross members were entitled to
    receive a health care benefit contract from New CT-
    Blue with the same terms and conditions as each Blue
    Cross policy they held before the merger. Section 3.3,
    by contrast, entitles each member to one guaranty pol-
    icy ‘‘in exchange for [that member’s] interests in [Blue
    Cross] . . . .’’ Similarly, § 3.4 (b) provides that the
    guaranty policy will ‘‘guarantee the benefits granted
    under each health insurance policy or [health care] ben-
    efits contract issued or assumed by New CT-Blue’’;
    (emphasis added); whereas § 3.4 (a) and (c), respec-
    tively, require that the guaranty policy grant voting
    rights and equity rights in the event of demutualization.
    Read together, then, the relevant provisions of the
    agreement to merge and the guaranty policy strongly
    suggest that each former Blue Cross member such as
    the state was to receive a single guaranty policy that
    served two purposes. First, the policy guaranteed for
    each premerger group health insurance plan held by
    the member that the enrollees would be entitled to the
    same health care benefits to which they were entitled
    under Blue Cross. Second, the guaranty policy granted
    membership, voting, and equity rights in the merged
    entity, rights that the member would retain as long as
    the member maintained a qualified policy without lapse.
    Because these rights are granted in exchange for the
    member’s interests in Blue Cross, and are not tied to
    any particular health care contract, the provisions in
    the guaranty policy that the ‘‘equity rights . . . shall
    accrue solely to the Anthem [Insurance] [m]ember . . .
    [and that] [n]o [e]nrollee . . . shall receive any equity
    rights by virtue of being an [e]nrollee’’ are most reason-
    ably understood to apply with respect to any qualifying
    group plan effective during the course of the member’s
    membership in Anthem Insurance.20 (Emphasis added.)
    Third, although the relevant language of the 1997
    articles generally favors the plaintiffs’ position, the
    insurance company defendants point to certain ambigu-
    ities in the 1997 articles themselves with regard to the
    membership issue. The most compelling of these arises
    from § 8.6, which provides in relevant part: ‘‘Upon any
    . . . demutualization or conversion of [Anthem Insur-
    ance] . . . in the determination of the rights of any
    member of [Anthem Insurance] who has had two or
    more insurance policies or certificates of membership,
    including renewed, amended or replaced policies or
    certificates, issued by [Anthem Insurance] successively
    without any lapse in coverage, full account and credit
    shall be given to such member of the value of such
    member’s interest in [Anthem Insurance] under all such
    policies or certificates. . . .’’ Unlike § 7.6 (c) (3), this
    provision appears to extend to former Blue Cross mem-
    bers equity rights in any policies that replaced qualifying
    Blue Cross policies, and not only those new policies
    that were ‘‘issued as’’ replacements thereof.21 It thus
    provides support for the insurance company defen-
    dants’ argument that the ‘‘issued as’’ language in § 7.6
    (c) (3) of the 1997 articles merely reflected inartful
    draftsmanship and was not intended to confer special
    status on enrollees in health plans such as the 1999
    group policy, which replaced but was not issued as a
    replacement for Care Plus.22
    Lastly, we note that, when confronted with similar
    challenges brought by a class of employees and retirees
    of the city of Cincinnati, Ohio, following the 1995 merger
    of Anthem Insurance’s predecessor company with Com-
    munity Mutual Insurance Company and the subsequent
    demutualization of that predecessor company, the
    United States Court of Appeals for the Sixth Circuit held
    that the District Court properly had granted summary
    judgment for the defendants. See Mell v. Anthem, Inc.,
    
    688 F.3d 280
    , 290 (6th Cir. 2012). The Sixth Circuit relied
    heavily on the provision of the corresponding guaranty
    policy stating that ‘‘[n]o [e]nrollee . . . shall receive
    any equity rights by virtue of being an [e]nrollee . . . .’’
    (Internal quotation marks omitted.) 
    Id., 288. For
    all of
    the foregoing reasons, we conclude that the trial court
    correctly determined that the merger documents are
    ambiguous with respect to whether the plaintiffs were
    entitled to membership in Anthem Insurance and the
    associated demutualization proceeds by virtue of their
    enrollment in the 1999 group policy.23
    C
    Use of Extrinsic Evidence and the Application
    of the Rule of Contra Proferentem
    Finally, we consider whether the trial court properly
    determined, upon review of the extrinsic evidence, that
    it was the intention of the parties to the 1997 articles
    and the other merger documents that the plaintiffs and
    others similarly situated would not be entitled to a share
    of the proceeds in the event that Anthem Insurance
    were to demutualize. In view of the abundant extrinsic
    evidence supporting the insurance company defen-
    dants’ position, the plaintiffs do not contest the court’s
    factual finding that the parties to the agreement to
    merge—Anthem Insurance and Blue Cross—intended
    that, after the merger, only the state and not individual
    enrollees in state Blue Cross health care insurance plans
    would become member owners of Anthem Insurance.
    Rather, the plaintiffs contend that the trial court
    improperly (1) considered evidence of the parties’
    intent that was never expressed to either the state or
    the individual enrollees in state Blue Cross health care
    plans, (2) considered evidence of intent that was not
    expressed until after the adoption of the 1997 articles,
    and (3) failed to apply the rule of contra proferentem
    and to construe the 1997 articles against Anthem Insur-
    ance, the primary drafter thereof.
    The following additional facts are relevant to the
    plaintiffs’ arguments. In its memorandum of decision,
    the trial court considered, among other things, four
    types of extrinsic evidence in determining that the rele-
    vant contract language recognized premerger Blue
    Cross group policyholders such as the state as member
    owners of the merged entity and would not permit both
    the state and the enrollees in the 1999 group policy to
    simultaneously be member owners.
    First, the court credited testimony by various officers
    and agents of Blue Cross and Anthem Insurance that
    both companies, when negotiating the merger, intended
    that the Blue Cross membership system would be
    retained for Blue Cross members, and that individual
    enrollees in Blue Cross group health care insurance
    policies would not become members of or acquire
    voting or equity rights in Anthem Insurance. Of particu-
    lar importance, the court credited testimony by Blue
    Cross’ primary outside counsel, John E. Kreitler, and
    Anthem Insurance’s primary outside counsel, Tibor D.
    Klopfer, that the two attorneys frequently discussed the
    membership issue prior to the merger. They agreed that
    employers such as the state that held Blue Cross group
    policies would be treated as ‘‘grandfathered groups’’
    after the merger and that such a group would be treated
    as the mutual member of Anthem Insurance with
    respect to all of the policies that it held, including new
    group policies purchased after the merger. Membership
    rights for grandfathered groups and new groups that
    obtained Blue Cross policies after the merger would
    thus be mutually exclusive, so that a grandfathered
    group and its employees could not simultaneously hold
    membership rights in the merged entity. Put differently,
    the attorneys both understood that § 7.6 (c) of the 1997
    articles would apply only to policies obtained by cus-
    tomers who were new to New CT-Blue after the merger.
    Second, the court considered public statements that
    Blue Cross and Anthem Insurance made to the Connect-
    icut Insurance Department and the Indiana Department
    of Insurance in connection with the regulatory approval
    process. In Connecticut, the two insurers filed a ‘‘Form
    A: Joint Statement Regarding the Proposed Merger of
    [Blue Cross] with and into [Anthem Insurance], and the
    Resulting Acquisitions of Anthem Health Plans, Inc.,
    and Connecticut American, Incorporated’’ (Form A). In
    that form and related discussions with the Connecticut
    Insurance Department that took place between Novem-
    ber, 1996, and March, 1997, representatives of the two
    companies reiterated their view that grandfathered
    groups would hold membership in the merged entity
    consistent with Blue Cross’ premerger membership
    rules and that only certificate holders in groups that
    first enrolled with New CT-Blue after the merger would
    be entitled to membership rights. Kreitler, for example,
    expressed his views about the membership issue in a
    November 21, 1996 letter to the Connecticut Insurance
    Department. Cynthia S. Miller, Anthem Insurance’s vice
    president and chief actuary, expressed similar senti-
    ments in public hearings before the Indiana Department
    of Insurance in June, 1997.
    Third, the court considered a report that was attached
    as an exhibit to Form A. The Report of Milliman &
    Robertson, Inc., and Statement of Opinion of Dale Hag-
    strom (fairness opinion) was written by Dale S. Hag-
    strom, a consulting actuary retained by Blue Cross to,
    among other things, (1) determine the postmerger rights
    of policyholders in the event of an Anthem Insurance
    demutualization, and (2) opine as to whether the merger
    would be fair to Blue Cross members. Following his
    review of the merger documents and discussions with
    Miller, Kreitler, Klopfer, and other attorneys involved
    in the merger, Hagstrom concluded that it was the
    expressed intent of the parties that grandfathered Blue
    Cross groups would continue to be the members of the
    merged entity, even with respect to new policies issued
    after the merger. He further opined that, according to
    the parties, it was ‘‘inconceivable’’ that both a grandfath-
    ered group such as the state and some of its enrollees
    could simultaneously be members of Anthem Insur-
    ance.
    Fourth, the court considered two notices—an infor-
    mation circular and a special meeting notice—that were
    sent to Blue Cross members prior to their vote to
    approve the merger. Those documents informed mem-
    bers that the Blue Cross membership rules would con-
    tinue to apply to them under the merged entity and that
    their proprietary interests would be preserved in the
    form of equivalent interests in Anthem Insurance. They
    further explained that individual holders of certificates
    of benefits issued under Blue Cross group policies did
    not have membership proprietary rights.24 With due
    regard to this background, we turn our attention to the
    plaintiffs’ arguments.
    1
    Reliance on Testimony
    We first consider the plaintiffs’ contention that it was
    improper for the court to rely on the testimony of wit-
    nesses such as Kreitler and Klopfer. The plaintiffs draw
    our attention to the well established rule that ‘‘the intent
    relevant in contract matters is not the parties’ subjective
    intents but their outward manifestation of it. . . . The
    cardinal rule of contract interpretation is to ascertain
    the intention of the parties from their expression of
    it. The court does not examine the hidden intentions
    secreted in the heart of a person but, rather, examines
    the final expression found in conduct.’’ (Citation omit-
    ted.) Real Estate Support Services, Inc. v. Nauman,
    
    644 N.E.2d 907
    , 910–11 (Ind. App. 1994). The plaintiffs
    concede, as they must, that the intentions of Kreitler
    and Klopfer with respect to the membership issue did
    not remain hidden or secret. The court credited testi-
    mony that the attorneys discussed the matter with each
    other while negotiating the merger agreements, and
    later with Hagstrom and others. Nevertheless, the plain-
    tiffs contend that the trial court could not consider
    extrinsic evidence of the attorneys’ intent because that
    intent was never expressed to future members of
    Anthem Insurance—in this case, either the state or
    the plaintiffs.
    There are several flaws in this argument. First,
    although it may be technically correct that, under Indi-
    ana law, the Anthem Insurance members were parties
    to the merger agreement and associated covenants, the
    plaintiffs have cited no authority for the proposition
    that a court may not consider extrinsic evidence of the
    intent behind a corporate agreement unless that intent
    was expressed to all of the corporation’s members or
    shareholders when the contract was negotiated and
    executed. Rather, we think it likely that Indiana courts
    would conclude that statements made by an attorney
    working on behalf of a corporation and at the direction
    of its officers are relevant, even if not dispositive, evi-
    dence of the meaning of ambiguous contractual provi-
    sions drafted by the attorney. See, e.g., Dept. of Public
    Welfare v. Chair Lance Service, Inc., 
    523 N.E.2d 1373
    ,
    1377 (Ind. 1988) (‘‘[t]he fundamental principles regard-
    ing the authority of an agent of a corporation are sub-
    stantially the same as those applicable to agents
    generally’’); see also Phillips v. National Trappers
    Assn., 
    407 N.W.2d 609
    , 612 (Iowa App. 1987) (when
    articles of incorporation were ambiguous, trial court
    properly admitted testimony by drafter as to his intent);
    18A Am. Jur. 2d 45, Corporations § 165 (2015) (when
    confronted with ambiguous articles of incorporation,
    court will consider history and surrounding circum-
    stances to determine parties’ intent). Nor have the plain-
    tiffs cited to any authority suggesting that Indiana
    courts depart from the general rule that shareholders
    are charged with knowledge of the provisions of a cor-
    porate charter and are bound thereby. 18 Am. Jur. 2d
    747, Corporations § 76 (2015); see also 18A Am. Jur.
    2d, supra, § 633, p. 500 (shareholders may be bound by
    corporate actions even if taken without their knowledge
    or participation).
    The second flaw in the plaintiffs’ argument is that,
    even if the opinions of Kreitler and Klopfer were not
    expressed directly to members of Blue Cross, those
    opinions were made public via the regulatory approval
    process to which the merger was subject. It is notewor-
    thy in this respect that the information circular and
    special meeting notice, both of which were sent to all
    Blue Cross members prior to their approval of the
    merger, each contained a section entitled ‘‘[r]egulatory
    and [o]ther [a]pprovals.’’ Those sections informed mem-
    bers that the merger would be subject to regulatory
    approval, that the two merging companies had filed a
    Form A with the Connecticut Insurance Commissioner
    (commissioner), and that the commissioner would be
    conducting public hearings regarding the merger.
    Accordingly, at least the state, if not the plaintiffs, may
    be charged with constructive knowledge of the contents
    of Form A and of the statements of intent that the
    parties’ representatives made to Connecticut and Indi-
    ana regulators.
    The third flaw in the plaintiffs’ argument is that,
    regardless of what notice persons who were Blue Cross
    members as of early 1997 were entitled to receive, it is
    undisputed that the plaintiffs were not members of
    either Blue Cross or Anthem Insurance at the time the
    1997 articles were drafted and the merger was consum-
    mated. The state was the Blue Cross member at that
    time, and the plaintiffs were at best potential future
    members of Anthem Insurance. In that respect, they
    were more akin to potential third-party beneficiaries of
    the 1997 articles than parties to that agreement. Under
    Indiana’s ‘‘stranger to the contract’’ rule, however, ‘‘the
    inadmissibility of parol evidence to vary the terms of
    a written instrument does not apply to a controversy
    between a third party and one of the parties to the
    instrument.’’ (Internal quotation marks omitted.) Amici
    Resources, LLC v. Alan D. Nelson Living Trust, 
    49 N.E.3d 1046
    , 1050 (Ind. App. 2016). Thus, the plaintiffs
    cannot be heard to complain that the trial court consid-
    ered extrinsic evidence that was not disclosed to them.
    For all of these reasons, we conclude that it was not
    improper for the trial court to consider the testimony
    of Kreitler and Klopfer as to the meaning of the
    merger documents.
    2
    Evidence of the Parties’ Intent Expressed
    After the Adoption of the 1997 Articles
    We next consider the plaintiffs’ argument that the
    trial court improperly admitted evidence of the parties’
    intent that was expressed after the adoption of the
    1997 articles in April, 1997. The plaintiffs maintain, for
    example, that the court should not have considered
    testimony regarding statements that Miller made before
    the Connecticut Insurance Department, because that
    testimony was not given until June, 1997.
    We already have explained why the trial court cor-
    rectly concluded that the 1997 articles were part and
    parcel of the other merger documents. See part II A of
    this opinion. For that reason, statements that the parties
    made in the context of drafting those documents or
    obtaining approval of the merger are not irrelevant to
    the present dispute. More generally, however, we dis-
    agree with the plaintiffs that, under Indiana law, the
    only intent that is relevant to the interpretation of an
    ambiguous contract is that which existed at the time
    of contracting. Rather, Indiana follows the general rule
    that the parties’ course of conduct after forming a con-
    tract may provide extrinsic evidence of the meaning of
    ambiguous terms. See, e.g., Bank of America, N.A. v.
    Ping, 
    879 N.E.2d 665
    , 671 (Ind. App. 2008); Noble
    Roman’s, Inc. v. Pizza Boxes, Inc., 
    835 N.E.2d 1094
    ,
    1099–1100 (Ind. App. 2005). We do not believe that it
    was irrelevant that the parties to the merger continued
    to express before regulatory agencies charged with
    approving the merger the very same sentiments that
    they had expressed privately to each other at the time
    they drafted the merger documents. In any event, any
    possible error in this respect was harmless because
    Miller’s testimony was merely cumulative of other evi-
    dence properly considered by the trial court. See King
    v. State, 
    460 N.E.2d 947
    , 950 (Ind. 1984).
    3
    Rule of Contra Proferentem
    Finally, we consider the plaintiffs’ argument that,
    because it was Anthem Insurance—in consultation with
    Blue Cross—rather than the plaintiffs who drafted the
    1997 articles and other merger documents, any ambigu-
    ities in those documents should be construed against
    Anthem Insurance according to the rule of contra pro-
    ferentem. The plaintiffs further contend that the rule
    applies with particular force in the present case because
    they played no part in negotiating or drafting the docu-
    ments and the merger documents thus represent a con-
    tract of adhesion with respect to them.
    As we already discussed, under Indiana law, an
    ambiguous contract is construed against the drafter
    only as a last resort, after all other indicia of the parties’
    intent have been consulted. In the present case, the
    trial court properly consulted extrinsic evidence and
    concluded that it unequivocally supported the defen-
    dants’ interpretation of the merger documents. Accord-
    ingly, there was no reason for the court to apply the
    rule of contra proferentem.
    We further note that the plaintiffs’ argument that the
    1997 articles were a contract of adhesion with respect
    to them and should be construed in their favor because
    they were not involved in drafting it would presumably
    apply with equal force to any purported third-party ben-
    eficiary to a contract. It would be a perverse rule indeed,
    however, if any person claiming to be the intended
    beneficiary of an ambiguous contract to which he was
    not a party were automatically entitled to have the
    contract construed in his favor precisely because he
    had played no part in its drafting. Indiana wisely follows
    a different approach. See, e.g., St. Paul Fire & Marine
    Ins. Co. v. Schilli Transportation Services, Inc., 
    672 F.3d 451
    , 456 (7th Cir. 2012) (court is not required to
    construe ambiguous contract against drafter in favor
    of nonparty).
    We thus conclude that the trial court properly consid-
    ered extrinsic evidence of the parties’ intent and cor-
    rectly construed the relevant contract language.
    Accordingly, the trial court properly found in favor of
    the insurance company defendants.
    The judgment is affirmed.
    In this opinion the other justices concurred.
    * This appeal originally was argued before a panel of this court consisting
    of Justices Palmer, Zarella, Eveleigh, McDonald, and Robinson. Thereafter,
    Justice Zarella retired from the court, and Justice Espinosa was added to
    the panel. Justice Espinosa has read the briefs and appendices, and listened
    to a recording of oral argument prior to participating in this decision.
    1
    As an alternative ground for affirmance, Anthem Insurance, among other
    defendants, contends that the trial court properly rendered judgment in its
    favor on a second, independent basis. Specifically, the court (1) determined
    that a provision in Anthem Insurance’s 2001 plan of conversion created
    a presumption that Anthem Insurance’s membership determinations were
    correct for the purpose of demutualization if the decisions were based on
    Anthem Insurance’s records and were made in good faith, and (2) found that
    both of those conditions were satisfied with respect to Anthem Insurance’s
    distribution of the plaintiffs’ alleged membership interests to the state. The
    plaintiffs challenge both the trial court’s legal conclusions and its factual
    findings. Although our conclusion that the court properly construed the
    relevant contract language means that we need not address the alternative
    ground for affirmance, we note that we have considered the plaintiffs’ argu-
    ments in this respect and find them to be without merit.
    2
    We refer collectively to the agreement to merge, the plan and joint
    agreement of merger, the 1997 articles, and the guaranty policy as the
    merger documents.
    3
    The trial court also considered the relevance of a third policy, denomi-
    nated HUSKY, which the Department of Social Services obtained from Blue
    Cross beginning in 1995.
    4
    ‘‘Mutual insurance companies are owned by their members, who are
    also insureds. . . . Stock insurance companies are owned by stockholders.’’
    (Citation omitted.) Gold v. 
    Rowland, supra
    , 
    296 Conn. 192
    n.7.
    After Indiana’s insurance commissioner approved the plan of conversion
    with an effective date of November 2, 2001, Anthem, Inc., was organized as
    a stock corporation under Indiana law to be the parent corporation of
    Anthem Insurance.
    5
    We hereinafter refer to Anthem, Inc., New CT-Blue, Anthem East, Inc.,
    and Anthem Insurance collectively as the insurance company defendants.
    Equiserve Trust Company, N.A. (Equiserve), also was named as a defendant.
    Equiserve is not a party to this appeal.
    6
    The fourth amended complaint alleged only the misdelivery of the
    Anthem, Inc. stock, conversion of property, and breach of contract. Only
    the breach of contract claim remains at issue.
    7
    At a prior stage of the proceedings, Judge Sheldon likewise concluded
    that the relevant contract language was ambiguous. See Gold v. Rowland,
    Superior Court, judicial district of Hartford, Docket No. HHD-CV-02-0813759-
    S (January 10, 2005).
    8
    Although Indiana law governs the substantive issues in this appeal, the
    parties appear to agree that our standard of review is established by Connect-
    icut law. See Montoya v. Montoya, 
    280 Conn. 605
    , 613–14 and n.8, 
    909 A.2d 947
    (2006). In any event, we do not believe that the standard of review
    would be materially different under Indiana law. See, e.g., Deel v. Deel, 
    909 N.E.2d 1028
    , 1034 (Ind. App. 2009).
    9
    Indiana courts traditionally recognized a distinction between patent
    ambiguities, which are apparent on the face of a contractual instrument
    and arise by reason of an inconsistency or inherent uncertainty of language,
    and latent ambiguities, which arise when the wording of an agreement is
    facially clear and intelligible but gives rise to an ambiguity as applied to a
    particular set of circumstances. See, e.g., Hauck v. Second National Bank,
    
    153 Ind. App. 245
    , 261–62, 
    286 N.E.2d 852
    (1972). The traditional rule was
    that extrinsic evidence is admissible to explain or clear up a latent ambiguity
    but is not admissible to explain or remove a patent ambiguity; id.; which
    the court must resolve as a matter of law. See Simon Property Group, L.P.
    v. Michigan Sporting Goods Distributors, Inc., 
    837 N.E.2d 1058
    , 1071 (Ind.
    App. 2005), transfer denied, 
    855 N.E.2d 1003
    (Ind. 2006). In 2006, however,
    the Indiana Supreme Court abandoned this distinction between patent and
    latent ambiguities, concluding that ‘‘it is proper to admit extrinsic evidence
    to resolve any ambiguity.’’ (Internal quotation marks omitted.) Tender Lov-
    ing Care Management, Inc. v. Sherls, 
    14 N.E.3d 67
    , 72 n.1 (Ind. App. 2014),
    quoting University of Southern Indiana Foundation v. Baker, 
    843 N.E.2d 528
    , 535 (Ind. 2006).
    10
    Because we conclude that the 1997 articles and the other merger docu-
    ments are components of a single agreement and are ambiguous when read
    together, we need not determine whether the 1997 articles, standing alone,
    are ambiguous with respect to the membership and demutualization issue.
    11
    The plan and joint agreement of merger refers to the 1997 articles at
    recital C and §§ 1.2, 4.1, and 5.2. Article IV of the group policy provides that
    Blue Cross members will retain their interests in Blue Cross prior to the
    merger ‘‘[a]s provided in [Anthem Insurance’s] [a]rticles of [i]ncorpora-
    tion . . . .’’
    12
    Article VII of the group guaranty policy issued to Blue Cross group
    policyholders at the time of the merger also includes an integration clause.
    As we noted, that document also was attached as an exhibit to the agreement
    to merge and thus incorporated therein.
    13
    The record does not indicate the date on which the members of Anthem
    Insurance voted to approve the merger.
    14
    Article IX of the agreement to merge mandates that members of both
    Anthem Insurance and Blue Cross convene to approve the merger. Section
    9.1 requires that Anthem Insurance convene a meeting as promptly as practi-
    cable to vote on the merger and the amended articles of incorporation, and
    § 9.2 requires that Anthem Insurance’s members vote on the plan and joint
    agreement of merger. Section 9.3 provides that, following favorable votes
    by the members of both Anthem Insurance and Blue Cross, the proper
    officers of those companies shall proceed to execute the merger.
    Section 10.1 also makes clear that approval of both the agreement to
    merge and the plan and joint agreement of merger by Anthem Insurance
    members was a condition precedent to the consummation of the merger.
    Section 13.1 further provides that the agreement to merge could be termi-
    nated in the event that the membership of either merging company failed
    to approve the merger. In addition, §§ 6.17 and 8.9 of the agreement refer
    to a vote by Anthem Insurance’s membership.
    15
    To the extent that the plaintiffs contend that it was improper to consider
    whether the merger documents and the 1997 articles were part and parcel
    of the merger because the merger documents constitute extrinsic evidence
    vis-a-vis the 1997 articles, the plaintiffs beg the question. If, as we have
    concluded, those documents were part and parcel of the same transaction,
    then, by definition, they do not constitute extrinsic evidence.
    16
    Section 3.1 of the plan and joint agreement of merger contains substan-
    tially similar language. Section 5.2 of that document further provides that
    ‘‘each holder of a certificate of coverage under a group New CT-Blue insur-
    ance policy or healthcare benefit contract originally issued after the [e]ffec-
    tive [t]ime shall be entitled to receive an Anthem [Insurance] certificate of
    membership issued under an Anthem [Insurance] group guaranty insur-
    ance policy.’’
    17
    The plaintiffs do not dispute, however, that the state also remained a
    member of Anthem Insurance because it continuously held qualified poli-
    cies—first, Care Plus, and then the 1999 group policy that ultimately replaced
    Care Plus—from the time of the merger until the demutualization.
    18
    In their briefs, the plaintiffs repeatedly emphasize that the 1997 articles
    and other merger documents speak in terms of ‘‘members’’ and ‘‘policyhold-
    ers’’ but generally do not use terms such as ‘‘customers’’ and ‘‘grandfathered
    groups.’’ They argue that the trial court improperly adopted the insurance
    company defendants’ use of such terminology, which, in their view, gives the
    false impression that the merger documents distinguish between premerger
    Blue Cross customers and new, postmerger customers. The plaintiffs instead
    read the documents to distinguish only between premerger and postmerger
    policies. Although, at times, we use the term ‘‘customer’’ for convenience
    or to explain the insurance company defendants’ theory of the case, we
    reach our ultimate conclusion—that both parties have articulated a plausible
    reading of the merger documents—fully cognizant of the fact that the rele-
    vant contractual provisions do not use such terminology.
    19
    As the insurance company defendants note, the 1999 group policy did
    not necessarily need to be added to the schedule in order for the relevant
    provisions of guaranty policy to apply to it. The guaranty policy defines the
    ‘‘Anthem [Blue Cross] Contract’’ to include not only the contract identified
    on the attached schedule, but also ‘‘any renewal or amendment, or any
    replacement thereof . . . .’’ Because the 1999 group policy replaced Care
    Plus without lapse, the guaranty policy presumably remained in effect at
    the time of demutualization.
    20
    It is true, as the plaintiffs note, that § 4.1 of the agreement to merge
    extends the membership rights provided by § 3.4 to individual certificate
    holders under New CT-Blue group policies issued after the merger. It does
    so, however, only ‘‘to the extent applicable,’’ and only to individuals who
    also hold an Anthem Insurance ‘‘insurance policy or membership certificate
    that guarantees [those] benefits . . . .’’ There is no indication, however,
    that the plaintiffs ever received certificates that would entitle them to such
    benefits, and the extent to which § 4.1 is applicable to them is, of course,
    the question we must resolve.
    The same can be said of § 8.6 (c) of the agreement to merge, on which
    the plaintiffs also rely. Although that provision indicates that individual
    holders of certificates of coverage under new postmerger group policies are
    entitled to receive certificates of membership, it also states that ‘‘[n]othing
    contained in this [s]ection . . . shall affect or alter in any manner the obliga-
    tions of the parties under [a]rticle III.’’
    21
    The plaintiffs contend that § 8.6 of the 1997 articles is inapplicable
    because Anthem Insurance issued only one group policy to the state. Notably,
    however, the plaintiffs themselves are equivocal on this point. In their princi-
    pal appellate brief, they contend that Anthem Insurance issued only the
    1999 group policy. In their reply brief, by contrast, they contend that Anthem
    Insurance issued only the guaranty policy, and that it was the Anthem
    Insurance subsidiary New CT-Blue that issued the 1999 group policy. Draw-
    ing a distinction between policies issued by Anthem Insurance and its subsid-
    iary makes little sense, however. Section 8.6 is clearly addressed to the
    types of health care benefits contracts that would be issued by New CT-
    Blue—those that are subject to regular renewal, amendment, or replace-
    ment—and, indeed, § 8.6 proceeds to discuss the specific case of a ‘‘member
    holding a [q]ualified [m]embership [s]ubsidiary insurance policy or health
    care benefits contract . . . .’’
    22
    Although the plaintiffs are correct that, as a general rule, all words in
    a contract must be given meaning; see, e.g., Magee v. Garry-Magee, 
    833 N.E.2d 1083
    , 1088 (Ind. App. 2005); the trial court correctly observed that
    Indiana courts have at times departed from this rule in concluding that
    certain phrasing is mere surplusage. See, e.g., Irwin v. Kilburn, 
    104 Ind. 113
    , 116–17, 
    3 N.E. 650
    (1885).
    23
    The parties also disagree with respect to their interpretation of various
    provisions of the merger documents that seek to ensure that Blue Cross
    members such as the state will recoup their full interests in the merged
    entity upon demutualization. The record before us is insufficient to evaluate
    these arguments.
    24
    Although the trial court found that the plaintiffs each held certificates
    of coverage under the 1999 group policy, there is no indication in the record
    that the plaintiffs ever received guaranty policies, certificates of member-
    ship, or other documents indicating that they were granted membership in
    Anthem Insurance by virtue of their participation in the 1999 group policy,
    or that they ever paid membership fees to Anthem Insurance or exercised
    or sought to exercise voting rights or other privileges of membership.