Stafford Sheehan v. Air Company Holdings, Inc.

CourtDistrict Court, E.D. New York
DecidedNovember 10, 2025
Docket1:25-cv-00932
StatusUnknown

This text of Stafford Sheehan v. Air Company Holdings, Inc. (Stafford Sheehan v. Air Company Holdings, Inc.) is published on Counsel Stack Legal Research, covering District Court, E.D. New York primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Stafford Sheehan v. Air Company Holdings, Inc., (E.D.N.Y. 2025).

Opinion

UNITED STATES DISTRICT COURT EASTERN DISTRICT OF NEW YORK

Stafford Sheehan, 25-CV-932 (ARR) (PK) Plaintiff, NOT FOR ELECTRONIC -against- OR PRINT PUBLICATION

Air Company Holdings, Inc., OPINION & ORDER

Defendant.

ROSS, United States District Judge: Plaintiff, Stafford Sheehan, Ph.D., brings this action against his former employer defendant Air Company Holdings, Inc. (“AirCo”). In his complaint, Dr. Sheehan brings claims for unlawful termination and retaliation under New York Labor Law, breach of contract, and breach of the covenant of good faith and fair dealing. Following consolidation of this action with an action brought by defendant AirCo, AirCo now brings counterclaims alleging that Dr. Sheehan breached his duty of loyalty, duty of care, and contract terms governing disclosure of proprietary information. Furthermore, AirCo seeks a declaratory judgment determining its rights and obligations under stock option agreements entered between Dr. Sheehan and AirCo. Pending before me is Dr. Sheehan’s motion to dismiss AirCo’s counterclaims. For the reasons below, Dr. Sheehan’s motion is granted in part and denied in part. BACKGROUND I. Factual Background In early 2017, Dr. Sheehan and Gregory Constantine founded AirCo, which was incorporated in Delaware on August 14, 2017. Counterclaims ¶ 2, ECF No. 24. Mr. Constantine served as AirCo’s Chief Executive Officer. Id. AirCo’s mission is to create products from carbon dioxide, such as hand sanitizer, perfume, industrial chemicals, and fuels. Id. ¶¶ 4–5. Dr. Sheehan was employed as AirCo’s Chief Technology Officer (“CTO”) from August 2017 until December 30, 2024, and served as a director of the company from October 2020 until January 9, 2025. Answer ¶ 3, ECF No. 24. As part of his employment, Dr. Sheehan and AirCo executed the Proprietary Information Agreement (“PIA”), which categorized Dr. Sheehan as an at-will

employee. Counterclaims ¶ 3.1 As relevant here, Sheehan agreed to “not disclose or use any Proprietary Information, except as such disclosure or use may be required in connection with my work for the Company.” PIA at 2. The PIA defined “proprietary information” as “all confidential, trade secret and/or proprietary knowledge, data or information of the Company,” including “non- public information regarding Company personnel.” Id. In August 2024, a member of AirCo’s Board of Directors (the “Board”) suggested that Mr. Constantine should be removed from his role as AirCo’s CEO. Counterclaims ¶ 14. At the time, Dr. Sheehan was AirCo’s Chief Technology Officer and a member of its Board. Id. ¶ 11. That suggestion led the company to commence an internal investigation and review of leadership

dynamics within AirCo. Id. ¶ 15. The investigation revealed various instances of misconduct by Dr. Sheehan. Id. ¶ 16. First, employees reported that Dr. Sheehan was a difficult boss and poor manager. Id. ¶¶ 20–25.

1 While AirCo states that the PIA is attached as Exhibit A to the Counterclaims, Counterclaims ¶ 3, it appears from the docket that its filing contained no attachments. In his motion to dismiss, Dr. Sheehan attached a copy of the PIA, see ECF No. 25-3, Ex. A (“PIA”), which I consider for purposes of deciding the instant motion. See Arkansas Pub. Emps. Ret. Sys. v. Bristol-Myers Squibb Co., 28 F.4th 343, 352 n.3 (2d Cir. 2022) (“[D]istrict courts may permissibly consider documents other than the complaint for the truth of their contents if they are attached to the complaint or incorporated in it by reference . . . A document that is integral to the complaint and partially quoted therein may be incorporated by reference in full.”) (quotation marks and citations omitted). Second, the investigation revealed that in September of 2024, Dr. Sheehan falsely represented to a significant investor that Mr. Constantine would be removed as the Company’s CEO, despite no Board vote approving that action. Id. ¶ 26. Dr. Sheehan made the same false representation, which AirCo characterizes as “non-public, confidential, proprietary information,” to “at least two employees” and “at least four separate investors.” Id. ¶¶ 28–29.

Third, Sheehan had misrepresented to the same significant investor that the Company had “plans” for an office in Connecticut. Id. ¶ 26. The investor, “as an explicitly listed condition precedent to their investment,” required “that the Company have firm plans to maintain physical office space in Connecticut.” Id. ¶ 27. Due to that condition, the Company’s investment advisor had recommended that AirCo not move forward with this investor. Id. However, Dr. Sheehan, who “had been entrusted to take the lead” on negotiations with this investor, ignored the recommendation and instead “deliberately misrepresented” to the investor through a side letter that the Company had plans to maintain Connecticut office space. Id. Side letters are “peripheral terms proposed by an investor, in addition to their original investment terms, which augment the

same and frequently provide that investor with certain levels of added access into the Company and its operations.” Id. ¶ 31. At the same time, Dr. Sheehan “took efforts to conceal or minimize this representation from the Company when the investment was raised in discussions with the Board.” Id. ¶ 27. Ultimately, the investor learned of the misrepresentations, and the Company returned the investor’s investment and made a settlement payment. Id. Fourth, in September of 2024, “Sheehan agreed to giv[e] a potential investor an observer seat on the Company’s Board without Company approval.” Id. ¶ 30. AirCo had previously directed Dr. Sheehan to “provide full disclosure of any and all side letters to the Company for leadership to review” before entering into such letters. Id. ¶¶ 30–31. Dr. Sheehan falsely represented to a Company employee that he had obtained Company approval for this side letter. Id. ¶ 32. AirCo did not learn about the Board observer commitments Dr. Sheehan made with the potential investor until sometime “after Sheehan was placed on leave,” requiring the company to renegotiate terms with that investor. Id. Fifth, in September 2024, Dr. Sheehan retained an attorney on behalf of the Company

without Board authorization. Id. ¶ 33. Sheehan “represented to that attorney that he had Board support to remove Mr. Constantine and negotiate a severance package.” Id. That attorney later terminated his engagement with AirCo. Id. On October 5, 2024, as a result of AirCo’s initial findings, the Board voted to place Dr. Sheehan on paid administrative leave until January 1, 2025. Id. ¶ 17. While on administrative leave in October and November of 2024, Dr. Sheehan directed an AirCo employee to tell a company IT employee that he might lose his job if he released Dr. Sheehan’s emails to AirCo. Id. ¶¶ 18–19, 34. As a result, that IT employee refused to produce Dr. Sheehan’s emails. Id. ¶ 35. On December 30, 2024, the Board voted to terminate Dr. Sheehan’s employment for

cause and remove him as an officer. Id. ¶ 37. On January 9, 2025, the Common Stockholders voted to remove Dr. Sheehan from the Board. Id. ¶ 38. II. Procedural History On February 12, 2025, AirCo filed suit against Dr. Sheehan in the Delaware Court of Chancery. Mem. in Supp. of Mot. to Transfer at 5, ECF No. 11. On February 18, 2022, Dr. Sheehan initiated the present action in this district. See Complaint, ECF No. 1. AirCo’s case in the Delaware Court of Chancery was removed to the United States District Court for the District of Delaware, and was then transferred to this district. See Electronic Order of May 5, 2025.

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