103 F.4th 675
9th Cir.2024Background
- Plaintiffs (a certified class of Northern California health-insured individuals and employers) sued Sutter Health under California’s Cartwright Act, alleging Sutter used systemwide hospital contracting and certain contract clauses to force insurers to accept supracompetitive terms (tying and anti‑steering) that were passed on as higher premiums. The jury returned a verdict for Sutter after a four‑week trial.
- The district court limited admissible historical evidence by excluding evidence predating January 1, 2006 (a five‑year cutoff before the damages period beginning 2011) under Fed. R. Evid. 403, and it denied Plaintiffs’ offer of proof for 23 pre‑2006 documents.
- The district court also modified California pattern jury instructions (CACI 3405 and 3411) by removing the word “purpose,” instructing the jury to evaluate only the effect (not purpose) of Sutter’s conduct for the unreasonable course‑of‑conduct (rule‑of‑reason) claim.
- On appeal the Ninth Circuit majority held the district court erred in both respects: (1) excluding the pre‑2006 evidence was an abuse of discretion under Rule 403 because that evidence was highly probative of Sutter’s intent, history, and market power; and (2) omitting “purpose” from the Cartwright Act jury instructions misstates California law because purpose is a permissible factor the jury must be allowed to consider. Both errors were prejudicial and warranted reversal and a new trial.
- Judge Bumatay dissented: he would have affirmed, giving deference to the district court’s broad discretion to set a reasonable cutoff for historical evidence and arguing the majority imposes a novel rule that anticompetitive purpose must be treated as an essential element in every rule‑of‑reason case.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Exclusion of pre‑2006 evidence under Fed. R. Evid. 403 | Pre‑2006 documents (Sutter memos, depositions, contracts, health‑plan objections, merger materials) were highly probative of Sutter’s intent, the history of systemwide contracting, imposition of challenged clauses, and market power; excluding them deprived the jury of essential proof. | District court reasonably set a 2006 cutoff to avoid cumulative, confusing, time‑consuming, and prejudicial mini‑trials over remote conduct; evidence was marginally relevant because contracts were renegotiated and damages relate to 2011 onward. | Reversed: blanket exclusion of pre‑2006 evidence was an abuse of discretion given its high probative value and limited risk of unfair prejudice; error presumed prejudicial and Sutter failed to show harmlessness. |
| Jury instruction omitting “purpose” (CACI 3405/3411) | Cartwright Act and California precedent permit proof by anticompetitive purpose or effect; the jury must be allowed to consider purpose as a factor in the rule‑of‑reason analysis. | Sutter argued purpose alone cannot establish liability and the jury need only consider effect; removing “purpose” avoids suggesting intent alone suffices. | Reversed: omission of “purpose” misstates California law and the rule‑of‑reason framework; failure to allow the jury to consider purpose was legal error and not harmless. |
| Whether errors were harmless given verdict form (jury answered threshold questions "no") | Precluded evidence and defective instructions could have affected jury answers to threshold questions (e.g., whether Sutter “forced” plans), so harmlessness cannot be presumed. | The jury’s negative answers on threshold questions show that the excluded evidence/instruction would not have changed the outcome. | Majority: Sutter did not meet burden to show it is more probable than not the errors did not affect the verdict; errors prejudicial when considered cumulatively. Dissent: errors were harmless and deference to district court was warranted. |
| Whether appellate decision creates new antitrust rule requiring purpose consideration as an element | Plaintiffs: instruction must allow consideration of purpose as a factor; this does not make purpose a standalone element. | Sutter & dissent: Majority invents a new rule by elevating purpose to an essential, reversible‑error requirement for all rule‑of‑reason cases. | Majority: court did not announce a novel rule—purpose is a recognized, essential consideration under Cartwright and comparable federal precedent and pattern instructions; omission misstates the law. Dissent: contends majority effectively imposes a new mandatory rule and oversteps. |
Key Cases Cited
- Olean Wholesale Grocery Coop., Inc. v. Bumble Bee Foods LLC, 31 F.4th 651 (9th Cir. 2022) (en banc) (discussing indirect purchaser theory and two‑step overcharge theory used by Plaintiffs)
- Corwin v. L.A. Newspaper Serv. Bureau, Inc., 22 Cal.3d 286 (Cal. 1978) (Cartwright Act rule‑of‑reason articulated as whether a restraint has as its purpose or effect an unreasonable restraint of trade)
- In re Cipro Cases I & II, 61 Cal.4th 116 (Cal. 2015) (rule‑of‑reason factors include nature/history/reasons for a restraint)
- Bd. of Trade of Chi. v. United States, 246 U.S. 231 (U.S. 1918) (purpose, history, and reasons for a restraint are relevant in rule‑of‑reason analysis)
- United States v. Topco Assocs., Inc., 405 U.S. 596 (U.S. 1972) (history and reasons for adoption are relevant in assessing reasonableness)
- Continental Ore Co. v. Union Carbide & Carbon Corp., 370 U.S. 690 (U.S. 1962) (district courts may set reasonable cutoff dates for historical evidence at trial)
- Socony‑Vacuum Oil Co. v. United States, 310 U.S. 150 (U.S. 1940) (affirming exclusion of collateral historical evidence as cumulative/confusing; courts may limit evidence to avoid mini‑trials)
- Ohio v. American Express Co., 585 U.S. 529 (U.S. 2018) (rule‑of‑reason requires fact‑specific assessment of market power and structure)
- BladeRoom Grp. Ltd. v. Emerson Elec. Co., 20 F.4th 1231 (9th Cir. 2021) (presumption of prejudice from erroneous jury instruction; prevailing party bears burden to show harmlessness)