Julius Lipp, et al. v. Mixedbread AI, Inc.

CourtDistrict Court, N.D. California
DecidedJanuary 6, 2026
Docket3:25-cv-08281
StatusUnknown

This text of Julius Lipp, et al. v. Mixedbread AI, Inc. (Julius Lipp, et al. v. Mixedbread AI, Inc.) is published on Counsel Stack Legal Research, covering District Court, N.D. California primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Julius Lipp, et al. v. Mixedbread AI, Inc., (N.D. Cal. 2026).

Opinion

1 2 3 4 UNITED STATES DISTRICT COURT 5 NORTHERN DISTRICT OF CALIFORNIA 6 7 JULIUS LIPP, et al., Case No. 25-cv-08281-TSH

8 Plaintiffs, ORDER GRANTING IN PART AND 9 v. DENYING IN PART MOTION FOR JUDGMENT ON THE PLEADINGS 10 MIXEDBREAD AI, INC., Re: Dkt. No. 17 11 Defendant.

12 13 I. INTRODUCTION 14 Plaintiffs Julius Lipp and Julius Lipp Holding, UG bring claims against Defendant 15 Mixedbread AI, Inc. arising from a co-founder dispute and alleged wrongful termination. 16 Mixedbread moves for judgment on the pleadings under Federal Rule of Civil Procedure 12(c) as 17 to Plaintiffs’ third (conversion) and fourth (Cal. Penal Code § 496) claims. ECF No. 17. Plaintiffs 18 filed an Opposition (ECF No. 19) and Mixedbread filed a Reply (ECF No. 20). The Court finds 19 this matter suitable for disposition without oral argument pursuant to Civil Local Rule 7-1(b) and 20 VACATES the January 15, 2026 hearing. For the reasons stated below, the Court GRANTS IN 21 PART and DENIES IN PART Mixedbread’s motion.1 22 II. BACKGROUND 23 A. Factual Background 24 Julius Lipp is a citizen of Germany and the sole owner and manager of Julius Lipp 25 Holding, UG, a German limited liability company. Compl. ¶¶ 1-2, ECF No. 1. He is a software 26 engineer and “product-focused technology leader.” Id. ¶ 6. Plaintiffs allege that “[g]iven his 27 1 technical expertise in AI and software engineering, proven performance at leading technology 2 companies and entrepreneurial track record, Lipp had multiple career paths available to him— 3 including continued employment at established companies like Google or pursuing consulting 4 opportunities in the rapidly growing AI sector,” but he instead “chose to forgo these other 5 opportunities to co-found Mixedbread, believing that his equity stake and role as a cofounder 6 would be protected.” Id. ¶ 8. 7 Mixedbread is an artificial-intelligence research and engineering company that builds 8 large-scale retrieval systems. Id. ¶ 10. It is the joint creation of its two co-founders: Lipp and 9 Aamir Shakir. Id. ¶ 9. Mixedbread was incorporated on or around October 27, 2023, with Lipp 10 and Shakir appointed as its two Directors, Shakir elected as its Chief Executive Officer, and Lipp 11 elected as its Chief Technology Officer. Id. 12 On October 26, 2023, Mixedbread executed a Restricted Stock Purchase Agreement 13 (RSPA) with Lipp Holding, through which Lipp Holding purchased 4,500,000 shares of the 14 company’s common stock. Id. ¶ 17. The agreement contains a repurchase option for Mixedbread, 15 but it is limited by a vesting schedule also contained in the RSPA which functions to release 16 shares from the ambit of the repurchase option on a rolling basis. Id. ¶ 18. 17 Plaintiffs allege Shakir “quickly proved incapable of executing on any vision for 18 Mixedbread,” so at the end of 2024, Lipp “took decisive action to remedy the situation,” providing 19 the leadership and technical skill that transformed Mixedbread from concept into execution. Id. ¶¶ 20 13-14. Team members, including Shakir, “heaped praise” on Lipp during this period, and Shakir 21 became a strong advocate for the product direction. Id. ¶ 15. Lipp entered into an employment 22 agreement with Mixedbread effective May 28, 2025, which provides for Lipp’s paid employment 23 with the company as its CTO. Id. ¶ 22. It also provides that Mixedbread may terminate Lipp only 24 “for Cause.” Id. 25 Around June of 2025, Lipp became aware that Shakir and another Board member, Max 26 Claussen, “were engaging in a pattern of bad faith conduct designed to isolate and improperly oust 27 Lipp from Defendant and steal his shares.” Id. ¶ 24. In early June 2025, Shakir “ambushed Lipp 1 Company to steal the fruit of [his] hard work and skill.” Id. ¶¶ 26-27. Shakir and Claussen 2 continued to pressure Lipp to leave, attempting “to extort Lipp by threatening to have Mixedbread 3 cause the revocation of his US immigration visa unless he voluntarily agreed to leave the 4 Company.” Id. ¶ 29. When Lipp requested time to consult an attorney to advise him concerning a 5 separation, Shakir and Claussen scheduled an immediate Board meeting, during which they 6 purported to terminate Lipp’s employment. Id. However, Shakir and Claussen “admitted that the 7 Company lacked the ‘Cause’ required under the Employment Agreement . . . for a valid 8 termination, and indeed wholly failed to identify any improper conduct attributable to Lipp.” Id. 9 Plaintiffs allege that “at the meeting Shakir and Claussen stated outright that their motivation in 10 terminating Lipp’s employment was to stop the ongoing release of Lipp Holding’s shares from the 11 Repurchase Option.” Id. ¶ 30. Mixedbread subsequently asserted that Lipp had himself decided 12 to leave to compete with it by forming another company. Id. ¶ 33. Mixedbread also accused Lipp 13 of improperly disclosing Defendant’s trade secrets and intellectual property. Id. 14 B. Procedural Background 15 On September 29, 2025, Plaintiffs filed their complaint, alleging five causes of action 16 against Mixedbread: (1) Breach of Contract (Employment Agreement), brought by Julius Lipp; (2) 17 Breach of Contract (Restricted Stock Purchase Agreement), brought by Julius Lipp Holding, UG; 18 (3) Conversion, brought by Julius Lipp Holding, UG; (4) Violation of California Penal Code § 19 496, brought by Julius Lipp Holding, UG; and (5) Declaratory Relief, brought by Julius Lipp 20 Holding, UG. Compl. ¶¶ 40-71. 21 On December 11, 2025, Mixedbread filed the present motion. 22 III. LEGAL STANDARD 23 “After the pleadings are closed—but early enough not to delay trial—a party may move for 24 judgment on the pleadings.” Fed. R. Civ. P. 12(c). “Judgment on the pleadings is properly 25 granted when, accepting all factual allegations in the complaint as true, there is no issue of 26 material fact in dispute, and the moving party is entitled to judgment as a matter of law.” Chavez 27 v. United States, 683 F.3d 1102, 1108 (9th Cir. 2012) (brackets and internal quotation marks 1 legal sufficiency of the claims asserted in the complaint. Id. Indeed, a Rule 12(c) motion is 2 “functionally identical” to a Rule 12(b)(6) motion, and courts apply the “same standard.” Dworkin 3 v. Hustler Magazine, Inc., 867 F.2d 1188, 1192 (9th Cir. 1989) (explaining that the “principal 4 difference” between Rule 12(b)(6) and Rule 12(c) “is the time of filing”); Cafasso, U.S. ex rel. v. 5 Gen. Dynamics C4 Sys., Inc., 637 F.3d 1047, 1054 n.4 (9th Cir. 2011). 6 Judgment on the pleadings should thus be entered when a complaint does not plead 7 “enough facts to state a claim to relief that is plausible on its face.” Bell Atl. Corp. v. Twombly, 8 550 U.S. 544, 570 (2007). “A claim has facial plausibility when the plaintiff pleads factual 9 content that allows the court to draw the reasonable inference that the defendant is liable for the 10 misconduct alleged.” Ashcroft v. Iqbal, 556 U.S. 662, 678 (2009). “The plausibility standard is 11 not akin to a probability requirement, but it asks for more than a sheer possibility that a defendant 12 has acted unlawfully.” Id. (internal quotation marks omitted).

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Julius Lipp, et al. v. Mixedbread AI, Inc., Counsel Stack Legal Research, https://law.counselstack.com/opinion/julius-lipp-et-al-v-mixedbread-ai-inc-cand-2026.