Oklahoma Firefighters Pension v. Nektar Therapeutics ( 2022 )


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  •                 FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    IN RE NEKTAR THERAPEUTICS                No. 21-15170
    SECURITIES LITIGATION,
    D.C. No.
    4:18-cv-06607-
    OKLAHOMA FIREFIGHTERS PENSION                 HSG
    AND RETIREMENT SYSTEM; EL PASO
    FIREMEN & POLICEMENS PENSION
    FUND, Lead Plaintiffs,                     OPINION
    Plaintiffs-Appellants,
    v.
    NEKTAR THERAPEUTICS; HOWARD
    W. ROBIN; STEPHEN K. DOBERSTEIN;
    JONATHAN ZALEVSKY,
    Defendants-Appellees.
    Appeal from the United States District Court
    for the Northern District of California
    Haywood S. Gilliam, Jr., District Judge, Presiding
    Argued and Submitted December 10, 2021
    Pasadena, California
    Filed May 19, 2022
    Before: Milan D. Smith, Jr., Kenneth K. Lee, and
    Danielle J. Forrest, Circuit Judges.
    Opinion by Judge Lee
    2     IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    SUMMARY *
    Securities Fraud
    The panel affirmed the district court’s dismissal of a
    Second Amended Complaint in which two public pensions
    sued Nektar Therapeutics for securities fraud, alleging that
    Nektar misleadingly relied on outlier data from a single
    patient during the Phase 1 clinical trial of its anti-cancer
    drug, NKTR-214.
    The panel affirmed for two reasons.
    First, Plaintiffs have not adequately alleged falsity under
    section 10(b) of the Securities Exchange Act of 1934, 15
    U.S.C. § 78j(b), and Securities and Exchange Commission
    Rule 10b-5, 
    17 C.F.R. § 240
    .10b-5. The panel wrote that the
    complaint fails to articulate why Nektar’s statements about
    the Phase 1 clinical trial would be materially misleading to
    investors, even assuming Nektar relied on outlier data. The
    panel wrote that Plaintiffs do not sufficiently explain what
    the clinical trial would have shown without the alleged
    outlier data, nor do they specify how that would have
    affected the investing public’s assessment of the drug. The
    panel wrote that for all we know, the clinical trial could have
    still shown excellent results, even without the data from the
    supposed outlier patient.
    Second, Plaintiffs did not plausibly allege loss causation.
    The panel wrote that nothing in the operative complaint
    suggests that Nektar’s disclosure of its later Phase 1/2
    *
    This summary constitutes no part of the opinion of the court. It
    has been prepared by court staff for the convenience of the reader.
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.              3
    clinical trial results uncovered the “falsity” of the earlier
    Phase 1 trial, thus causing the drop in stock price. Rather,
    Plaintiffs’ factual allegations suggest a more mundane
    explanation: the different and more robust Phase 1/2 clinical
    trial merely showed that the drug may not be as effective as
    the initial – and limited – Phase 1 clinical trial had suggested.
    Further, Plaintiffs’ reliance on an anonymous and self-
    interested short-seller’s internet musings about Nektar’s
    Phase 1 EXCEL clinical trial does not show loss causation.
    COUNSEL
    Alec T. Coquin (argued), Michael P. Canty, and Thomas G.
    Hoffman Jr., Labaton Sucharow LLP, New York, New
    York; James M. Wagstaffe, Wagstaffe von Loewenfeldt
    Busch & Radwick LLP, San Francisco, California; for
    Plaintiffs-Appellants.
    Robin Wechkin (argued), Sidley Austin LLP, Issaquah,
    Washington; Sara B. Brody and Zarine S. Alam, Sidley
    Austin LLP, San Francisco, California; Matthew J. Dolan,
    Sidley Austin LLP, Palo Alto, California; for Defendants-
    Appellees.
    OPINION
    LEE, Circuit Judge:
    Experimental drug candidates do not always live up to
    their potential, even if initial clinical trials yield highly
    promising results. But, as this case illustrates, that does not
    mean that a pharmaceutical company has defrauded the
    investing public.
    4     IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    In 2017, Nektar Therapeutics touted the results from a
    Phase 1 clinical trial (dubbed “EXCEL”) of its anti-cancer
    drug. The next year, however, a different and more
    comprehensive Phase 1/2 clinical trial (called “PIVOT”)
    showed that the drug was not as effective as the initial trial
    had suggested. Nektar’s share price plunged over 40
    percent. Two public pensions then sued Nektar for securities
    fraud, alleging that Nektar misleadingly relied on outlier
    data from a single patient during the Phase 1 EXCEL clinical
    trial. The district court dismissed their operative complaint
    with prejudice.
    We affirm for two reasons. First, Plaintiffs have not
    adequately alleged falsity under section 10(b) of the
    Securities Exchange Act of 1934, 15 U.S.C. § 78j(b), and
    Securities and Exchange Commission Rule 10b-5, 
    17 C.F.R. § 240
    .10b-5. The complaint fails to articulate why Nektar’s
    statements about the Phase 1 EXCEL clinical trial would be
    materially misleading to investors, even assuming Nektar
    relied on outlier data. Plaintiffs do not sufficiently explain
    what the clinical trial would have shown without the alleged
    outlier data, nor do they specify how that would have
    affected the investing public’s assessment of the drug. For
    all we know, the clinical trial could have still shown
    excellent results, even without the data from the supposed
    outlier patient. Without specific allegations to connect the
    dots, Plaintiffs’ theory fails to plead securities fraud.
    Second, Plaintiffs have not plausibly alleged loss
    causation. Nothing in the operative complaint suggests that
    Nektar’s disclosure of its later Phase 1/2 PIVOT clinical trial
    results uncovered the “falsity” of the earlier Phase 1 EXCEL
    trial, thus causing the drop in stock price. Rather, Plaintiffs’
    factual allegations suggest a more mundane explanation: the
    different and more robust Phase 1/2 PIVOT clinical trial
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.                    5
    merely showed that the drug may not be as effective as the
    initial—and limited—Phase 1 EXCEL clinical trial had
    suggested. Further, Plaintiffs’ reliance on an anonymous
    and self-interested short-seller’s internet musings about
    Nektar’s Phase 1 EXCEL clinical trial does not show loss
    causation.
    BACKGROUND
    I. Nektar’s NKTR-214 anti-cancer drug does not
    replicate the results from the first Phase 1 EXCEL
    clinical trial in its later Phase 1/2 PIVOT trial.
    Nektar researches and develops new drugs for cancer,
    autoimmune disease, and chronic pain. 1 Its flagship drug
    candidate is NKTR-214, a modified version of a human
    protein that activates the body’s production of cancer-
    fighting cells. NKTR-214 stimulates the production of
    CD8+ T cells, which kill infected or malignant cells.
    As part of NKTR-214’s development, Nektar carried out
    a Phase 1 clinical trial dubbed EXCEL. During the EXCEL
    trial, 28 cancer patients received dosages of NKTR-214
    every two or three weeks, and then tissue samples were
    collected, divided, and analyzed to assess the drug’s
    effectiveness.
    As the EXCEL trial progressed, Nektar reported interim
    results at various points. At a healthcare conference in 2017,
    Nektar’s CEO Howard Robin presented a chart that
    displayed data from EXCEL showing that “cancer-fighting
    cells increased by an average of 30-fold in tumors of
    1
    These facts come from the second amended complaint and are
    accepted as true for this appeal. See Nguyen v. Endologix, Inc., 
    962 F.3d 405
    , 408 (9th Cir. 2020).
    6    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    purportedly ten patients dosed with NKTR-214.” This so-
    called “30-fold chart” undergirds this securities fraud
    lawsuit.
    Because the 30-fold chart underpins this case, we will
    describe it in some detail. As alleged in the complaint, the
    chart first appeared under the title “Analysis of T cell
    Populations in Tumor”:
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.                    7
    It shows the “fold change” 2 of two types of cells: CD8+
    and Tregs. 3 Thus, the x-axis displays the cell type, while the
    y-axis displays the fold change. The chart shows a 29.8-fold
    change for CD8+ cells. The chart includes information
    explaining that the fold change was calculated by measuring
    the cells “predose” and then at Week 3 of dosing. It also
    explains that the chart reflects data from “N = 10 patients.”
    In layman’s language, the chart shows that cancer-fighting
    cells increased an average of about 30-fold among 10
    patients after taking Nektar’s drug. Nektar presented this 30-
    fold chart at many conferences.
    After the promising results from the Phase 1 EXCEL
    trial, Nektar launched a second clinical trial called PIVOT.
    PIVOT evaluated the effectiveness of NKTR-214 when
    dosed along with another drug called Opdivo. Nektar
    released Phase 1/2 data from PIVOT on Saturday, June 2,
    2018. The reported data showed that “the overall response
    rate for NKTR-214 in treating melanoma had declined from
    the 85% rate presented the previous November to 50%.”
    When the markets opened on Monday, Nektar’s stock price
    plummeted from $90.35 to $52.57, a dip of about 42%.
    II. Anonymous short-shellers accuse Nektar of relying
    on outlier data in its first Phase 1 EXCEL clinical
    trial.
    About four months later, anonymous short-sellers
    released a report, dubbed the Plainview Report, that outlined
    2
    Fold change measures how much a quantity changes between an
    initial and final measurement. It is derived by dividing the final
    measurement by the initial measurement.
    3
    Tregs are Regulatory T cells that regulate and suppress the immune
    system. They are not at issue in this case.
    8      IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    why its authors believed NKTR-214 to be less effective than
    Nektar claimed. The Plainview Report claimed that a
    different chart displayed by Nektar—“Figure 6”—
    demonstrated the falsity of the 30-fold chart. Figure 6
    presented data on CD8+ T Cell changes in 7 of the 28
    patients in the EXCEL trial.
    Figure 6 showed that one patient in the EXCEL trial,
    Patient 14, saw an increase in CD8+ T cells of roughly 300-
    fold, while the other six patients saw more modest increases.
    The Plainview Report claimed that Patient 14 was among the
    10 patients reflected in the 30-fold chart, thus skewing the
    data in that chart. The Plainview Report also contained a
    disclaimer that its authors “make no representation, express
    or implied, as to the accuracy, timeliness, or completeness of
    any such information” in the report. On the same day that
    the Plainview Report was published, Nektar’s stock price
    declined by seven percent.
    III.    Two public pensions sue Nektar for securities
    fraud.
    The Oklahoma Firefighters Pension and Retirement
    System, along with the El Paso Firemen & Policemen’s
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.             9
    Pension Fund (collectively, “the Pensions”) sued Nektar and
    some of its current and former employees in October 2018.
    They then filed an amended complaint after being appointed
    lead plaintiffs. The district court, however, granted Nektar’s
    motion to dismiss the first amended complaint without
    prejudice.
    The Pensions then filed a second amended complaint.
    The complaint alleged that Nektar made materially
    misleading statements or omissions by touting its 30-fold
    chart without disclosing that Patient 14’s outlier data was
    included in the average. To support that allegation, the
    complaint cited the Plainview Report and its analysis linking
    Figure 6 to the 30-fold chart.
    The complaint also included statements by Confidential
    Witness #2 (“CW #2”), who worked in Clinical
    Development Operations at Nektar throughout the Class
    Period and “closely monitored the incoming data” for
    NKTR-214. CW #2 stated that Patient 14 was the sole
    outlier included in the EXCEL trial, and that the 30-fold
    increase would have been “nowhere near” as large without
    Patient 14’s data. CW #2 also described how Nektar
    changed trial reporting deadlines for the PIVOT trial so that
    positive results would make their way into presentations
    while negative results would be left out. Further, CW #2
    stated that scientists working at Nektar disagreed with these
    practices and with the inclusion of outlier data in
    presentations on trial results.
    The district court again dismissed the complaint, this
    time with prejudice. The district court held that the Pensions
    failed to adequately plead falsity, scienter, or loss causation.
    The Pensions timely appealed, and we have jurisdiction to
    review the dismissal order under 
    28 U.S.C. § 1291
    .
    10    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    STANDARD OF REVIEW
    We review de novo the district court’s dismissal of the
    complaint. Levi v. Atossa Genetics, Inc. (In re Atossa
    Genetics Inc. Sec. Litig.), 
    868 F.3d 784
    , 793 (9th Cir. 2017).
    The court must accept all well-pleaded allegations as true.
    Lloyd v. CVB Fin. Corp., 
    811 F.3d 1200
    , 1205 (9th Cir.
    2016). We also consider the complaint as a whole. Tellabs,
    Inc. v. Makor Issues & Rights, Ltd., 
    551 U.S. 308
    , 322
    (2007).
    To survive a Rule 12(b)(6) motion, a plaintiff must plead
    “enough facts to state a claim to relief that is plausible on its
    face.” Bell Atl. Corp. v. Twombly, 
    550 U.S. 544
    , 570 (2007).
    A claim is facially plausible when a plaintiff pleads “factual
    content that allows the court to draw the reasonable
    inference that the defendant is liable for the misconduct
    alleged.” Ashcroft v. Iqbal, 
    556 U.S. 662
    , 678 (2009).
    Securities fraud complaints face heightened pleading
    requirements. “At the pleading stage, a complaint stating
    claims under section 10(b) and Rule 10b-5 must satisfy the
    dual pleading requirements of Federal Rule of Civil
    Procedure 9(b) and the [Private Securities Litigation Reform
    Act (PSLRA)].” Zucco Partners, LLC v. Digimarc Corp.,
    
    552 F.3d 981
    , 990 (9th Cir. 2009). Rule 9(b) requires that a
    party “state with particularity the circumstances constituting
    fraud or mistake.” The PSLRA requires that “the complaint
    shall specify each statement alleged to have been
    misleading, the reason or reasons why the statement is
    misleading, and, if an allegation regarding the statement or
    omission is made on information and belief, the complaint
    shall state with particularity all facts on which that belief is
    formed.” 15 U.S.C. § 78u-4(b)(1)(B). “By requiring
    specificity, [the PSLRA] prevents a plaintiff from skirting
    dismissal by filing a complaint laden with vague allegations
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.          11
    of deception unaccompanied by a particularized explanation
    stating why the defendant’s alleged statements or omissions
    are deceitful.” Metzler Inv. GMBH v. Corinthian Colls.,
    Inc., 
    540 F.3d 1049
    , 1061 (9th Cir. 2008).
    ANALYSIS
    To plead a claim under § 10(b) and Rule 10b-5, a
    plaintiff must allege “(1) a material misrepresentation or
    omission [falsity]; (2) scienter; (3) a connection between the
    misrepresentation or omission and the purchase or sale of a
    security; (4) reliance; (5) economic loss; and (6) loss
    causation.” Nguyen, 962 F.3d at 413 (quoting Or. Pub.
    Emps. Ret. Fund v. Apollo Grp. Inc., 
    774 F.3d 598
    , 603 (9th
    Cir. 2014)). Each of these elements must be independently
    satisfied. See Or. Pub. Emps. Ret. Fund, 774 F.3d at 607
    (explaining that failure to adequately plead an element “is an
    independent basis” on which to affirm dismissal of the
    complaint).
    As explained below, we hold that Plaintiffs have failed
    to establish falsity and loss causation under the applicable
    pleading standards. For that reason, we need not address the
    remaining elements.
    I. The Complaint Does Not Adequately Allege Why
    Nektar’s Statements About Phase 1 EXCEL Trial
    Results Are False or Misleading.
    To satisfy the falsity element, the Pensions point to
    Nektar’s use of the 30-fold chart to tout the effectiveness of
    NKTR-214. The Pensions’ arguments lack merit because
    they fail to specify why the chart would have deceived a
    reasonable investor under § 10(b) or Rule 10b-5.
    12    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    A. The complaint fails to explain why the alleged
    outlier data in the Phase 1 EXCEL clinical trial
    constituted a material misrepresentation.
    The parties dispute whether Patient 14’s outlier data was
    in fact included in the 30-fold chart’s calculations. But even
    assuming it was, the complaint fails to explain why its
    inclusion was materially misleading. Simply put, the
    complaint does not allege with specificity what the Phase 1
    EXCEL results would have been without outlier data. Nor
    does it provide context about why investors would have felt
    misled had they received Phase 1 EXCEL results without the
    outlier data.
    The Pensions say that the 30-fold chart was misleading
    because Nektar failed to inform investors that it included
    outlier data. An omission is materially misleading if “there
    is ‘a substantial likelihood that [it] would have been viewed
    by the reasonable investor as having significantly altered the
    “total mix” of information made available’ for the purpose
    of decisionmaking by stockholders concerning their
    investments.” Retail Wholesale & Dep’t Store Union Loc.
    338 Ret. Fund v. Hewlett-Packard Co., 
    845 F.3d 1268
    , 1274
    (9th Cir. 2017) (quoting Basic Inc. v. Levinson, 
    485 U.S. 224
    , 231–32 (1988)); accord Atossa, 868 F.3d at 795
    (quoting same). So, “once defendants [choose] to tout
    positive information to the market, they [are] bound to do so
    in a manner that wouldn’t mislead investors, including
    disclosing adverse information that cuts against the positive
    information.” Khoja v. Orexigen Therapeutics, Inc., 
    899 F.3d 988
    , 1009 (9th Cir. 2018) (quoting Schueneman v.
    Arena Pharm., Inc., 
    840 F.3d 698
    , 705–06 (9th Cir. 2016)).
    Here, the Pensions have not pleaded specific facts
    articulating why Nektar’s 30-fold chart about the Phase 1
    EXEL clinical results was materially misleading. See
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.                    13
    Metzler, 
    540 F.3d at 1061
    . The complaint merely alleges
    that outlier data drove the 30-fold change claim without
    providing any meaningful context or information about why
    an investor’s assessment of Nektar would have changed if
    Patient 14’s alleged outlier data had been excluded. 4 Put
    another way, we simply do not know what the results would
    have been without the outlier data or what those results
    would mean as a medical matter.
    The Pensions take three stabs at what the fold change
    would have been without Patient 14’s outlier data, but they
    all fall short of the heightened pleading standard imposed by
    Rule 9(b) and the PSLRA.
    First, the Pensions rely on the Plainview Report to allege
    that the result “would look very different” if one calculated
    the fold change based on only three patients found in Figure
    6 who were dosed every three weeks. The complaint claims
    that the fold change for that calculation would be “~1.8
    fold.” But cherry-picking data from only three patients does
    not plausibly show the falsity of the 30-fold claim. Indeed,
    the complaint never explains or justifies why it excluded the
    other remaining patients (at least six more in the 30-fold
    chart). And it is not even apparent from the complaint
    whether any patients from Figure 6 are in the 30-fold chart,
    as the latter included data from only ten out of the twenty-
    eight patients in the EXCEL trial.
    Second, the complaint states that CW #2 contended that
    the results would have been “nowhere near” the 30-fold
    4
    In their briefs, the Pensions maintained that Patient 14’s outlier
    (positive) data should have been excluded because it skewed the results.
    But if so, it would also allow companies to discard outlier (negative) data
    claiming that it distorts the results. The Pensions presumably would
    consider such exclusion of negative data to be misleading.
    14       IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    result without Patient 14’s data, but it does not specify any
    further details. Instead, CW #2 relies on vague and
    hyperbolic assertions, describing the 30-fold chart as
    “misleading,” “deceitful,” and “lacking scientific integrity.”
    But conclusory adjectives do not meet the PSLRA’s
    heightened pleading requirements. Metzler, 
    540 F.3d at 1061
    . In the highly technical task of evaluating scientific
    studies and their impact on investment decisions, plaintiffs
    must provide some specificity to anchor their contentions
    that investors would find one study outcome to be
    meaningfully different from another.          The Pensions’
    complaint fails to do that.
    Third, the Pensions rely on a statistical analysis by an
    expert who estimates, after making many assumptions, that
    the fold change experienced by the other patients in the 30-
    fold chart could not have topped 5.55. Yet again, we are
    provided no plausible justification for the assumptions
    underlying how this expert precisely derived that 5.55-fold
    estimate. 5 Plaintiffs cannot evade the PSLRA’s exacting
    pleading standards by merely citing an expert who makes
    assertions about falsity based on questionable assumptions
    and unexplained reasoning.
    5
    The expert apparently assumes that Patient 14’s starting CD8+
    count was 10 cells/mm2. But this is seemingly estimated from visually
    looking at Figure 6, which is a tiny graphic whose y-axis is marked by
    large increments of 500 (0, 500, 1000, etc.). The dot representing Patient
    14’s starting CD8+ count is near zero, but the dot itself is big enough
    visually relative to the compressed y-axis that one could reasonably
    conclude that Patient 14’s actual starting count is anywhere from zero to
    50. Using the same logic as the expert, choosing a starting count
    somewhere between 11 and 50 would mean that the fold change
    experienced by the other patients in the 30-fold chart could be anywhere
    from ~8-fold to ~27-fold.
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.           15
    Even assuming the Pensions had adequately alleged
    what the fold change would have been without Patient 14’s
    data, they have failed to explain why that difference would
    be material to a reasonable investor. See Retail Wholesale,
    845 F.3d at 1274; Atossa, 868 F.3d at 795. Consider this
    analogy on why context matters in determining the falsity of
    statements based on highly technical information: Suppose a
    smartphone maker touts that the microchip in its newest
    phone is 300 times faster than its predecessor chip based on
    multiple technical tests. But if we take out one outlier test,
    it turns out that the new microchip is 200 times faster. It may
    well be that consumers cannot tell the difference between
    200 times and 300 times faster in real-life because 200 times
    is blazingly fast for any conceivable task on a smartphone.
    And in such a scenario, the average investor may not care
    whether the new microchip is 200 times or 300 times faster
    because it makes no material difference to consumers.
    Likewise, we do not know from the complaint whether a
    somewhat lower fold-change would have been material to
    investors. For example, without Patient 14’s data, perhaps
    the number of cancer-fighting cells would have increased
    15-fold. Is that an excellent result from a medical
    perspective? Is there any material difference between a 15-
    fold increase and a 30-fold increase? And how would an
    average investor assess such a difference? Perhaps investors
    would not care about such a difference if it turned out that a
    30-fold increase provides little marginal benefit over a 15-
    fold increase for most cancer patients. We cannot answer
    any of these questions because the complaint has failed to
    plead sufficient facts to provide context that would allow us
    to assess the alleged falsity of Nektar’s statements.
    16     IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    B. The purported inclusion of patients with different
    dosing schedules does not render the 30-fold chart
    materially misleading.
    The Pensions also allege that Nektar “falsely claimed
    that the patients in the trial were dosed with NKTR-214
    every three weeks when, in fact, two of the patients used to
    support the 30-fold increase claim—including the outlier
    patient—were dosed every two weeks.” But the Pensions
    plead no facts suggesting why the one-week difference in
    dosing “would have been viewed by the reasonable investor
    as having significantly altered the ‘total mix’ of information
    made available.” Atossa, 868 F.3d at 795 (quoting Basic,
    
    485 U.S. at
    231–32). It might be inferred that needing a
    higher frequency of dosing suggests a lower potency of the
    drug, but it is unclear how that relates to the viability of
    NKTR-214 on the market or, as a result, Nektar’s
    attractiveness as an investment. The Pensions thus have not
    plausibly alleged a materially false statement about dosing
    frequency.
    II. The Complaint Does Not Plausibly Establish Loss
    Causation.
    The Pensions have also failed to allege loss causation.
    When considering loss causation, “the ultimate issue is
    whether the defendant’s misstatement, as opposed to some
    other fact, foreseeably caused the plaintiff’s loss.” Lloyd,
    811 F.3d at 1210. The “burden of pleading loss causation is
    typically satisfied by allegations that the defendant revealed
    the truth through ‘corrective disclosures’ which ‘caused the
    company’s stock price to drop and investors to lose money.’”
    Id. at 1209 (quoting Halliburton Co. v. Erica P. John Fund,
    Inc., 
    573 U.S. 258
    , 264 (2014)). Plaintiffs thus must show a
    “causal connection between the fraud and the loss by tracing
    the loss back to the very facts about which the defendant
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.                       17
    lied.” Mineworkers’ Pension Scheme v. First Solar Inc., 
    881 F.3d 750
    , 753 (9th Cir. 2018) (internal quotation marks and
    citations omitted). 6
    A. The later Phase 1/2 PIVOT trial result was not a
    corrective disclosure that exposed the alleged
    falsity of the earlier Phase 1 EXCEL trial data.
    As discussed above, after earlier reporting on the highly
    promising data from the Phase 1 EXCEL clinical trial,
    Nektar later revealed results from the Phase 1/2 PIVOT trial
    that somewhat took the shine off the initial trial data. Nektar
    reported that the overall response rate in patients was 50%,
    down from 85% reported in data collected in the year before.
    The next business day on June 4, Nektar’s stock dropped
    over 40%. The Pensions argue that the inclusion of
    misleading outlier data in the Phase 1 EXCEL trial inflated
    investor expectations, and then the results of the Phase 1/2
    PIVOT trial revealed the falsity of the earlier Phase 1
    EXCEL trial data.
    This claim fails because only a tenuous causal
    connection exists between the alleged falsehoods from the
    Phase 1 EXCEL trial and the Phase 1/2 PIVOT trial data
    announcement that preceded the June 4 stock drop. The use
    6
    The Pensions also rely on a “zone of risk” theory to argue loss
    causation. See, e.g., Lentell v. Merrill Lynch & Co., Inc., 
    396 F.3d 161
    ,
    173 (2d Cir. 2005). Our court has never expressly adopted that theory,
    though other circuits have. See Nuveen Mun. High Income Opportunity
    Fund v. City of Alameda, 
    730 F.3d 1111
    , 1120 (9th Cir. 2013). We have
    continued to require securities fraud plaintiffs to allege that the defendant
    lied about “the very facts” causing the plaintiffs’ losses, and it is unclear
    in any event that courts employing the “zone of risk” theory require any
    lesser showing. See 
    id.
     (quoting McCabe v. Ernst & Young, LLP, 
    494 F.3d 418
    , 425, 431 (3d Cir. 2007)).
    18    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    of outlier data alleged in the complaint relates to the Phase 1
    EXCEL trial, which focused only on NKTR-214. In
    contrast, the Phase 1/2 PIVOT trial tested patients who
    received both NKTR-214 and Opdivo, another anti-cancer
    drug. The Phase 1/2 PIVOT trial thus tested a different
    treatment and used a different diagnostic measure than the
    Phase 1 EXCEL trial (tumor shrinkage rather than biomarker
    data).
    Of course, the two trials are related in that they both
    involved NKTR-214. But the inquiry is whether the
    Pensions have traced their losses “back to the very facts
    about which the defendant lied.” Mineworkers, 881 F.3d at
    753 (quotation omitted). The Pensions’ allegations focus on
    data from the earlier Phase 1 EXCEL trial, rather than the
    later Phase 1/2 PIVOT data. The announcement of the Phase
    1/2 results did not suggest that the EXCEL data were
    improperly manipulated, or that the methodology for
    collecting and analyzing that data was flawed. Indeed,
    Nektar’s announcement merely integrated newly collected
    data from the Phase 1/2 PIVOT trial into its reporting. It did
    not correct or revise previous patient data.
    The Phase 1/2 PIVOT result was not a corrective
    disclosure that exposed the alleged falsity in the Phase 1
    EXCEL trial data, causing the drop in stock price. Rather, it
    merely showed that results from a different and more
    comprehensive test were not as promising as those from the
    more limited Phase 1 EXCEL data. Thus, the Pensions’
    factual allegations most plausibly suggest that relatively
    disappointing test results, not any revelation of earlier
    falsehoods, caused Nektar’s share price to plunge.
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.            19
    B. The Plainview Report Does Not Establish Loss
    Causation.
    The Pensions also argue that the Plainview Report—in
    which anonymous short-sellers claimed that Patient 14’s
    outlier data from Figure 6 were incorporated into the 30-fold
    chart—served as a corrective disclosure that caused Nektar’s
    stock to drop by seven percent on October 1. That argument
    fails.
    Our court recently analyzed when a short-seller’s report
    can satisfy the loss causation element in Houston Mun.
    Employees Pension System v. BofI Holding, Inc. (In re BofI
    Holding, Inc. Securities Litigation), 
    977 F.3d 781
     (9th Cir.
    2020). The inquiry begins with whether the court can
    “plausibly infer that the alleged corrective disclosure
    provided new information to the market that was not yet
    reflected in the company’s stock price.” 
    Id. at 795
    . This is
    normally difficult with a short-seller report that uses publicly
    available information because a corrective disclosure “must
    by definition reveal new information to the market that has
    not yet been incorporated into the [stock] price.” 
    Id. at 794
    .
    But if the report “required extensive and tedious research
    involving the analysis of far-flung bits and pieces of data,”
    then “[t]he time and effort it took to compile this information
    make it plausible that the posts provided new information to
    the market, even though all of the underlying data was
    publicly available.” 
    Id. at 797
    .
    BofI underscored the high bar that plaintiffs must meet
    in relying on self-interested and anonymous short-sellers.
    We acknowledged that it was “plausible” that the short-seller
    blog posts at issue “provided new information to the
    market,” but “nonetheless conclude[d]” that the plaintiffs
    “ha[d] not plausibly alleged that these posts constituted
    corrective disclosures.” 
    Id.
     We explained that “it is not
    20    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.
    plausible that the market reasonably perceived these posts as
    revealing the falsity of [the defendant’s] prior
    misstatements” because:
    The posts were authored by anonymous
    short-sellers who had a financial incentive to
    convince others to sell, and the posts included
    disclaimers from the authors stating that they
    made “no representation as to the accuracy or
    completeness of the information set forth in
    this article.” A reasonable investor reading
    these posts would likely have taken their
    contents with a healthy grain of salt.
    
    Id.
    We hold that the same reasoning applies to the Plainview
    Report. Perhaps the Plainview Report did provide new
    information to the market. Its analysis pulled together
    disparate sources and connected data in ways that were not
    plainly obvious. For example, it compared statements made
    by Nektar at different conferences and it cross-checked
    sources provided by Nektar. Yet the Plainview Report was
    “authored by anonymous short-sellers who had a financial
    incentive to convince others to sell, and the posts included
    disclaimers from the authors stating that they made ‘no
    representation as to the accuracy or completeness of the
    information set forth in this article.’” BofI, 977 F.3d at 797.
    As a result, it is not plausible that the market would perceive
    the Plainview Report as revealing false statements because
    the nature of the report means that investors would have
    taken its “contents with a healthy grain of salt.” Id.
    The Pensions attempt to distinguish BofI by arguing that
    the reports in that case had only a tangential relationship to
    the false statements at issue, while here the Plainview Report
    IN RE NEKTAR THERAPEUTICS SECURITIES LITIG.             21
    relates directly to the alleged false statements. It is true that
    information’s “relationship to the alleged misstatements”
    was a factor considered in BofI. Id. at 795. But the central
    holding in the case was that the character of the report—
    anonymous and self-interested short-sellers who disavowed
    any accuracy—rendered it inadequate. Whether a report is
    tangential or direct in relation to the misstatements does not
    change that fact.
    In sum, the Plainview Report does not establish loss
    causation for the October 1 stock drop.
    CONCLUSION
    Pharmaceutical companies often suffer setbacks in their
    clinical trials after earlier testing offered highly promising
    results. That is the nature of the industry, and—without
    more—it does not necessarily mean that a pharmaceutical
    company committed securities fraud. The Pensions’
    operative complaint does not provide anything “more” here
    under the applicable legal standards, and so the Pensions
    have failed to state a claim for securities fraud. As a result,
    we AFFIRM the district court’s dismissal of the Second
    Amended Complaint.