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N.D. Cal.Procedural orderFiled July 9, 2025

Guardant Health, Inc. v. Natera, Inc.

Judge
Edward Chen
Docket
3:21-cv-04062
Court
U.S. District Court · Northern District of California
Pages
7

Counsel49 of record
PLAINTIFF
Allen Overy Shearman Sterling US LLPLLP5 attorneys
Saul H. Perloff, Andre Hanson, Christopher Lloyd LaVigne
Keller Anderle Scolnick LLPLLP4 attorneys
Akhil Sheth, Gregory M. Sergi, Chase A. Scolnick
Harbaugh Law, PCPC
Craig Anthony Harbaugh
Gibson, Dunn & Crutcher LLPLLP
Lillian J. Mao
Shearman & Sterling LLPLLP
Mary Catherine Amerine
Jones Day
Michael C. Hendershot
Shearman and Sterling, LLPLLP
Robert Lawrence Rouder
APPELLANT
Christopher Tayback Quinn Emanuel Urquhart & Sullivan, LLP
COUNTER-CLAIMANT
Quinn Emanuel Urquhart & Sullivan, LLPLLP16 attorneys
Sara Louise Pollock, Brian Paul Biddinger, Kevin P.B. Johnson
Winston Taylor LLPLLP3 attorneys
Chase J. Cooper, John C.C. Sanders , Jr., Katherine Vidal
Quinn Emanuel2 attorneys
Jocelyn Ma, Kaitlin Elizabeth Keohane
Wilmer Cutler Pickering Hale and Dorr LLPLLP2 attorneys
Seth P. Waxman, Thomas G. Sprankling
Cooley LLPLLP
Cat Williams
Conrad Metlitzky Kane LLPLLP
Felipe Corredor
Quinn Emmanuel Urquhart & Sullivan
Tara Srinivasan
King & Spalding LLPLLP
Thomas M. Melsheimer
Quinn Emanuel Urquhart and Sullivan LLPLLP
Valerie Anne Lozano
DEFENDANT
Quinn Emanuel Urquhart & Sullivan, LLPLLP6 attorneys
Christopher Tayback, Sara Louise Pollock, Elle Xuemeng Wang

Counsel of record per CourtListener. Firm names are approximate and have been consolidated across spelling variants.

Fee PetitionCivil Procedure
In one sentence

Guardant Health v. Natera: Judge Edward Chen granted fees for misconduct but deferred who pays and whether punitive sanctions apply.

Who this affects

Guardant Health receives the granted fee request, while Natera, Quinn Emanuel, and the identified individual attorneys may be affected by the later decision on apportionment and punitive sanctions. The opinion does not yet assign liability among them.

What happened

In Guardant Health, Inc. v. Natera, Inc., the court considered Guardant’s request for more monetary sanctions based on statements Natera’s lawyers made about the COBRA study. The court had previously found that Quinn Emanuel deliberately misled the court and had postponed trial and reopened discovery as a result.

Guardant requested $2,985,909.63 in related fees and costs, additional fees and costs from the sanctions motion, punitive sanctions, and referrals of four Quinn Emanuel attorneys to the State Bar of California. Natera argued that earlier sanctions were enough and that the requested fees should be reduced.

Judge Edward Chen granted Guardant’s request for attorneys’ fees related to the COBRA misconduct. The court deferred deciding how the fees will be divided and whether punitive sanctions will be imposed, and will appoint a special master to address those issues.

The detailed version

For law students, journalists, and other readers who want the full reasoning

Case
Guardant Health, Inc. v. Natera, Inc. · No. 3:21-cv-04062
Judge
Edward Chen
Date
July 9, 2025

Background

The court addressed the parties’ supplemental briefs concerning further monetary sanctions against Natera for misconduct involving the COBRA study. In an earlier sanctions order, the court found that Natera’s counsel, Quinn Emanuel, made deliberate misrepresentations to the court and to Judge Kim. The earlier order granted evidentiary sanctions but deferred monetary sanctions and required briefing on the responsibility of individual attorneys.

The court had found that Dr. Hochster and Quinn Emanuel made misleading and false statements about Dr. Hochster’s communications with COBRA investigators and the NRG, his access to study results, and his receipt of a draft abstract. According to the court, those statements were used to obtain a litigation advantage by persuading the court to reopen discovery and postpone trial so the COBRA evidence could be introduced.

Guardant’s Requests and Natera’s Response

Guardant requested $2,985,909.63 in attorneys’ fees and costs connected to the COBRA misconduct, plus any additional fees and costs incurred in connection with the sanctions motion. Guardant also requested punitive sanctions, including personal fines against the attorneys involved, and referrals of Andrew Bramhall, Elle Wang, Brian Cannon, and Ryan Landes to the State Bar of California.

Natera argued that the sanctions already imposed were sufficient and that additional sanctions would be a windfall after the jury’s verdict. Natera also submitted declarations from the attorneys stating that they believed their representations were truthful and had relied on Dr. Hochster. Alternatively, Natera argued that any fee award should be limited to fees and costs meeting a “but-for” causation standard.

Court’s Analysis

The court retained its earlier finding of bad faith, concluding that the attorney declarations did not justify changing that finding. Applying the “but-for” test for compensatory sanctions, the court asked whether the claimed harm would have occurred without the sanctionable misconduct. It concluded that, without the misrepresentations, the court would not have postponed trial or reopened discovery.

The court therefore determined that fees and costs for the resulting additional discovery, depositions, expert work, motion practice, and related litigation were directly caused by the misconduct. It rejected Natera’s narrower view that Guardant could recover only fees related to enforcing the subpoena on Dr. Hochster and pursuing sanctions. The court found Guardant’s requested hours and billing rates reasonable under the fee evidence submitted.

Ruling

The court GRANTED Guardant’s request for attorneys’ fees related to the COBRA misconduct. It deferred the question of apportionment—meaning whether and to what extent the fees should be charged to Natera, Quinn Emanuel, or individual attorneys—and will appoint a special master to resolve that issue initially.

The court also deferred the question of punitive sanctions, including personal fines and a possible State Bar referral, and will have the special master address it initially. The parties were ordered to meet and confer about a proposed special master and to file a joint status report by July 18, 2025 concerning the proposed appointment and its scope.

The authoritative version

Read the full 7-page opinion on CourtListener, the free public archive maintained by the Free Law Project.

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