Thanh Son Tran v. Minh Duc Pham, et al.

District Court, N.D. California·Decided May 1, 2026·No. 5:25-cv-10326·Unknown

Opinion

1 2 3 UNITED STATES DISTRICT COURT 4 NORTHERN DISTRICT OF CALIFORNIA 5 SAN JOSE DIVISION 6 7 THANH SON TRAN, Case No. 5:25-cv-10326-BLF

8 Plaintiff, ORDER GRANTING MOTION FOR 9 v. PRELIMINARY INJUNCTION

10 MINH DUC PHAM, et al., [Re: ECF No. 47] 11 Defendants.

12 13 Plaintiff Thanh Son Tran brought this action against Defendant Minh Duc Pham, alleging 14 that after Mr. Tran and Mr. Pham co-founded a company called One Amo Inc. (“One Amo”), 15 Mr. Pham misappropriated proprietary technology from Mr. Tran and One Amo and diverted this 16 value to his own company, Defendant Wonder Rates, Inc. (“Wonder Rates”). ECF No. 1. On 17 December 17, 2025, the Court granted Mr. Tran’s application for a temporary restraining order 18 (“TRO”) and enjoined Mr. Pham and Wonder Rates from copying, deploying, or operating 19 systems derived from Mr. Tran’s “Bifrost” platform and One Amo’s proprietary technology 20 pending a hearing on Mr. Tran’s motion for a preliminary injunction. ECF No. 28 (“Order”). 21 Mr. Tran now moves for a preliminary injunction during the pendency of this action. ECF 22 No. 47 (“Mot.”); ECF No. 53 (“Reply”). Mr. Pham opposes the motion. ECF No. 49 (“Opp.”). 23 On March 20, 2026, the Court held oral argument on Mr. Tran’s motion for a preliminary 24 injunction, as well as on Mr. Pham’s motion to dismiss the first amended complaint. ECF No. 69. 25 That same day, the Court issued an order denying Mr. Pham’s motion to dismiss and directing 26 Mr. Tran to file an amended proposed preliminary injunction order. ECF No. 71. 27 For the reasons stated on the record and set forth below, the motion for a preliminary I. BACKGROUND 1 A. Factual Background 2 In October 2020, Mr. Tran and Mr. Pham co-founded One Amo, a Delaware corporation 3 with its principal place of business in Santa Clara County, California. ECF No. 33 (“Compl.”) 4 ¶¶ 9–11; see also ECF No. 47-1 (“Tran Decl.”) ¶ 11. One Amo is a technology company that 5 operates a proprietary mortgage-technology platform (the “One Amo Platform”), which includes 6 such components as “broker and borrower workflows; multi-tenant tenant-isolation logic specific 7 to mortgage operations; role-based permissioning tailored to broker teams; pipeline and loan- 8 status orchestration; pricing and rate-quote workflows; lender configuration and pricing rules; 9 operational dashboards; audit trails; and proprietary integrations with communications channels 10 and internal operational systems.” Compl. ¶ 67. Mr. Tran is Chief Technology Officer and 42.5% 11 shareholder of One Amo, and Mr. Pham is President and 57.5% shareholder of One Amo. Id. 12 ¶¶ 9–11. Mr. Pham is also the sole founder and controlling officer of Wonder Rates, a California 13 corporation with its principal place of business in Sunnyvale, California. Id. ¶¶ 11–12. 14 One Amo was conceived out of the Mr. Tran and Mr. Phan’s idea to “create a chatbot 15 capable of automating or replacing significant functions of a [mortgage] loan officer, including 16 borrower intake, rate discussions, and workflow guidance.” Compl. ¶¶ 28–29; see also Tran Decl. 17 ¶ 12. Prior to founding One Amo with Mr. Pham, Mr. Tran designed and implemented a 18 “complete backend software architecture known as BiFrost, . . . a reusable foundation to rapidly 19 build secure, scalable, production-ready startup systems.” Id. ¶ 40 (internal quotation marks 20 omitted). During One Amo’s pre-formation period, Mr. Tran informed Mr. Pham about BiFrost 21 and its potential application in designing a multi-tenant software product. See id. 22 After initial discussions and experimentation, Mr. Tran and Mr. Pham “agreed to pursue 23 the mortgage-automation business as co-founders and joint venturers,” with Mr. Tran responsible 24 for “contribut[ing] proprietary technology and engineering labor” and Mr. Pham responsible for 25 “contribut[ing] funding, business operations, and industry relationships.” Compl. ¶ 49. Mr. Tran 26 and Mr. Pham agreed to co-found One Amo to develop and commercialize this technology and 27 engaged Wilmer Cutler Pickering Hale and Dorr LLP (“WilmerHale”) to incorporate One Amo. 1 Id. ¶¶ 37–38. Based on Mr. Pham’s representation that he would fund One Amo, pay Mr. Tran’s 2 compensation, and raise capital in 2021, Mr. Tran worked full-time to build the One Amo 3 Platform. Id. ¶¶ 52, 58. Mr. Tran, “[u]sing BiFrost as a foundational architecture and applying 4 extensive additional work,” built and implemented the One Amo Platform, a “proprietary 5 mortgage-technology platform” that is “capable of onboarding multiple independent brokers and 6 teams, separating their data, permissions, and workflows, and supporting commercialization as a 7 software-as-a-service . . . product independent of Wonder Rates.” Id. ¶¶ 67–69. 8 On March 3, 2021, Mr. Tran and Mr. Pham signed identical “Founder Invention and Non- 9 Disclosure Agreements” to govern One Amo’s confidential and proprietary information and 10 restrict copying, disclosure, and use thereof, as well as the development of such confidential and 11 proprietary information. Compl. ¶ 72; see also Compl. Exs. A, B (together, the “Founder 12 Agreement”). The Founder Agreement defines “Proprietary Information” to include “secret or 13 confidential” business and technical information and restricts any disclosure, copying, use, 14 removal, or deployment of proprietary information to authorized purposes in One Amo’s line of 15 business. Founder Agreement § 2(a). The Founder Agreement further provides that Mr. Tran and 16 Mr. Pham make “full and prompt disclosure . . . of all discoveries, ideas, inventions, 17 improvements, enhancements, processes, methods, techniques, developments, software, and works 18 of authorship . . . which relate directly or indirectly to the business of One Amo,” id. § 3(b), 19 exempting any disclosed “Prior Developments,” id. § 3(a). Mr. Pham disclosed “[a]ll Wonderate 20 platforms” pursuant to the Founder Agreement, see Compl. Ex. B at 8, while Mr. Tran made no 21 such disclosure, see Compl. Ex. A at 8. 22 After the One Amo Platform became functional, Wonder Rates became a customer of One 23 Amo and began using One Amo as its loan-processing system. See Compl. ¶¶ 91, 123–30. 24 Around this time, the business relationship between Mr. Tran and Mr. Pham deteriorated, in part 25 due to Mr. Pham’s perception that Mr. Tran was failing to meet his capital obligations to fund 26 Amo’s operations. See id. ¶¶ 106–09. Mr. Tran alleges that these statements were false and in 27 fact part of a scheme to expel him from One Amo so that Mr. Pham could “use[] and deploy[] 1 “including through cloning repositories, duplicating deployment environments, and copying . . . 2 associated databases and operational histories.” Id. ¶¶ 82–85. Mr. Tran further alleges that 3 Mr. Pham “placed his personal interests and Wonder Rates’ interests in conflict with One Amo’s 4 interests” by “suppressing One Amo’s independent commercialization while simultaneously using 5 the [One Amo] platform to expand Wonder Rates’ internal operations.” Id. ¶ 95. 6 B. Procedural Posture 7 On December 1, 2025, Mr. Tran initiated this action by filing a complaint against 8 Mr. Pham and Wonder Rates, asserting violation of the Defendant Trade Secrets Act, 18 U.S.C. 9 § 1836 (“DTSA”), and related state-law claims. See ECF No. 1. The complaint named One Amo 10 as a “Nominal Plaintiff” for the purpose of derivative claims brought by Mr. Tran as a shareholder 11 plaintiff on One Amo’s behalf. Id. ¶ 4. In the complaint, Mr. Tran alleged that Mr. Pham 12 “secretly clon[ed] the technology stack, customer database, and business of” One Amo and 13 “divert[ed] everything to” Wonder Rates. Id. ¶ 1. One week after filing the complaint, Mr. Tran 14 filed a TRO application and an order to show cause why a preliminary injunction should not issue. 15 ECF No. 13.

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Thanh Son Tran v. Minh Duc Pham, et al., (N.D. Cal. 2026).

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