Aaron Kaufman v. Jay Baumgardner and JB Music Data, LLC

CourtDistrict Court, D. Delaware
DecidedApril 21, 2026
Docket1:26-cv-00054
StatusUnknown

This text of Aaron Kaufman v. Jay Baumgardner and JB Music Data, LLC (Aaron Kaufman v. Jay Baumgardner and JB Music Data, LLC) is published on Counsel Stack Legal Research, covering District Court, D. Delaware primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Aaron Kaufman v. Jay Baumgardner and JB Music Data, LLC, (D. Del. 2026).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE AARON KAUFMAN, ) ) Plaintiff, ) ) Vv. ) Civil Action No, 26-54-CFC-SRF ) JAY BAUMGARDNER and JB MUSIC +) DATA, LLC, ) ) Defendants. ) REPORT AND RECOMMENDATION Presently before the court in this civil action for declaratory and equitable relief concerning the internal affairs, voting control, and governance of a Delaware corporation under 8 Del. C. § 225 are the following motions: (1) the motion of defendants Jay Baumgardner and JB Music Data, LLC (collectively, “Defendants”) to dismiss the first amended complaint (“FAC”) pursuant to Federal Rules of Civil Procedure 12(b)(2), 12(b)(6), and/or 12(b)(7), to transfer venue to the Central District of California under 28 U.S.C. § 1404(a) or, alternatively, to stay the action, (D.I. 9);! (2) the motion of plaintiff Aaron Kaufman (“Kaufman”) for leave to file a second amended complaint (“SAC”), (D.I. 22);? (3) Kaufman’s motion to remand the case to the Delaware Court of Chancery, (D.I. 24);> (4) Kaufman’s motion for expedited consideration of the motion to remand, (D.I. 26);‘ and (5) Kaufman’s motion for leave to file a sur-reply to

| The briefing and filings associated with Defendants’ pending motion to dismiss, transfer, or stay the case and Kaufman’s related motion for leave to file a sur-reply are found at D.I. 10, D.L. 12, D.I. 13, D.I. 15, D.I. 20, D.I. 34, D.I. 40, DI. 41, D.I. 42, and D.I. 43. 2 The briefing associated with Kaufman’s motion to amend is found at D.I. 23 and D.I. 37. No reply brief was filed in support of the motion to amend. 3 The briefing associated with Kaufman’s pending motion to remand and the related motion to expedite is found at D.J. 25, D.I. 27, D.I. 38, and D.I. 39. 4 The briefing associated with the pending motion to expedite is listed in connection with Kaufman’s motion to remand at n.3, supra.

Defendants’ motion to dismiss, (D.I. 40). For the following reasons, the motion for leave to file the SAC is GRANTED and the motion to expedite and motion for leave to file a sur-reply are DENIED as moot.® I recommend that the court GRANT Kaufman’s motion for remand and REMAND the case to the Delaware Court of Chancery.’ I further recommend that the court DENY Defendants’ motion to dismiss the FAC as moot because it is superseded by the SAC. I. BACKGROUND Unless otherwise noted, the following facts are taken from Kaufman’s FAC, which was filed in the Delaware Court of Chancery on January 15, 2026. (D.I. 5; D.I. 12, Ex. C) In the summer of 2017, Kaufman founded a startup company in the music data and credits space with co-founders Jay Baumgardner and Kyran de Keijzer (collectively, the “Founders”). (D.I. 12, Ex. C at ff 9, 12-13) The company, Muso.AI Inc. (“Muso.AI”), is a closely held corporation that was incorporated in Delaware in June of 2017, and the Founders executed corporate formation documents and conducted initial board and officer elections on August 21, 2017. (id. at 13) The Founders also entered into restricted stock purchase agreements (“RSPAs”) which included transfer restrictions and a company right of first refusal

5 The briefing and filings associated with the pending motion for leave to file a sur-reply are listed in connection with Defendants’ motion to dismiss, transfer, or stay at n.1, supra. 6 The Third Circuit has held that a determination by a magistrate judge on a motion for leave to amend the pleading is not dispositive. See Continental Cas. Co. v. Dominick D’Andrea, Inc., 150 F.3d 245, 251 (3d Cir. 1998). Here, the undersigned judicial officer’s resolution of the motion for leave to amend does not dispose of the lawsuit or a claim. /d. Under Federal Rule of Civil Procedure 72(a) and 28 U.S.C. § 636(b)(1)(A), the district judge reviewing the magistrate judge’s order in a non-dispositive matter may modify, vacate, or reverse the decision only if it is clearly erroneous or contrary to law. Jd.; see Fed. R. Civ. P. 72(a); 28 U.S.C. § 636(b)(1)(A). Kaufman’s motion to expedite and motion for leave to file a sur-reply are also non-dispositive. 7 A motion for remand is considered a dispositive motion. Jn re U.S. Healthcare, 159 F.3d 142, 146 (3d Cir. 1998); Hutchins v. Bayer Corp., C.A. No. 08-640-JJF -LPS, 2009 WL 192468, at *3 (D. Del. Jan. 23, 2009). For that reason, the court issues this decision as a Report and Recommendation. See Drit LP v. Glaxo Grp. Ltd., C.A. No. 21-844-LPS-CJB, 2022 WL 605123, at * n.1 (D. Del. Feb. 18, 2022).

(“ROFR”) process requiring written notice of a proposed transfer of shares and a 30-day election period for Muso.AI to purchase the shares. (/d. at 7] 14-15) On October 14, 2025, de Keijzer emailed Kaufman and Baumgardner to inform them of his intent to sell his shares in Muso.AI to an entity formed and managed by Kaufman. (/d. at {{] 28-29) De Keijzer’s email also stated that de Keijzer and Kaufman waived the written notice period in the RSPA. (/d. at ]30) The following day, Kaufman sent an email notifying Baumgardner of the majority shareholder vote to waive the ROFR and written notice provisions in the RSPA and confirming the majority shareholder vote to execute the agreement for the sale of de Keijzer’s shares. (/d. at § 31) During a regular board meeting on October 21, 2025, Kaufman and de Keijzer reaffirmed their decision to waive the ROFR. (/d. at f] 33-34) Baumgardner did not attend the meeting. (id. at §33) Kaufman emailed Baumgardner on October 28, 2025 to announce a board vote the following day regarding the purchase of de Keijzer’s shares. (/d. at 137) Baumgardner was present at the board meeting on October 29, 2025 when the ROFR was presented, but he abstained from voting to exercise the ROFR. (Ud. at ¥ 39) On December 17, 2025, Baumgardner’s counsel sent a letter purporting to remove Kaufman as a director and officer “effective immediately.” (/d. at {43) Among other reasons, the letter cited the transfers of de Keijzer’s shares as the basis for Kaufman’s removal without a notice-and-cure process. (/d. at § 46) On December 30, 2025, Kaufman executed a written ratification confirming that the ROFR was waived as of October 30, 2025. (Ud. at {] 40-42) Baumgardner filed a civil action against Kaufman, de Keijzer, Muso.AI and other related entities in the Los Angeles County Superior Court on January 2, 2026 (the “California Action”). (D.I. 12, Ex. A) In the California Action, Baumgardner asserts direct and derivative causes of

action for breach of fiduciary duty, constructive fraud, intentional interference with contract and prospective economic advantage, and other state law claims based on de Keijzer and Kaufman’s alleged transfer of shares in violation of the RSPAs’ terms. (/d.) On January 7, 2026, Kaufman filed a civil action against Baumgardner in the Delaware Court of Chancery, proceeding pro se. (D.I. 1-1) In the original complaint, Kaufman sought a declaratory judgment regarding the validity of the share transfers, ROFR waiver, majority control, and the voidness of Kaufman’s purported removal as a director and officer of Muso.Al. (/d.

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Aaron Kaufman v. Jay Baumgardner and JB Music Data, LLC, Counsel Stack Legal Research, https://law.counselstack.com/opinion/aaron-kaufman-v-jay-baumgardner-and-jb-music-data-llc-ded-2026.