Cameron Turtle - 29 Aug 2024 Form 3 Insider Report for Oruka Therapeutics, Inc. (ORKA)

Footnote F1

Effective as of August 29, 2024 (the "Effective Time"), a wholly-owned subsidiary of ARCA biopharma, Inc. ("ARCA") merged with and into Oruka Therapeutics, Inc. ("Oruka") with Oruka continuing as a wholly owned subsidiary of ARCA and the surviving corporation of the merger, and Oruka merged with and into a second wholly-owned subsidiary of ARCA ("Second Merger Sub"), with Second Merger Sub being the surviving entity of the merger resulting in, among other things, Oruka becoming a wholly owned subsidiary of ARCA (collectively, the "Merger"). At the Effective Time, ARCA effected a name change to "Oruka Therapeutics, Inc." (hereinafter, the "Issuer").

Footnote F2

Represents the number of shares of common stock of the Issuer received by the Reporting Person in the Merger in exchange for the shares of Oruka held by the Reporting Person prior to the Merger. Each share of Oruka common stock held at the Effective Time was exchanged for 6.8569 shares of the Issuer's common stock. On September 3, 2024, the Issuer effected a 1-for-12 reverse stock split of the Company common stock.

Footnote F3

This warrant represents a right to purchase 9,048 shares of the Issuer's common stock, one quarter of which will vest on April 3, 2025, with the remaining three quarters vesting in equal monthly installments over the following three years, subject to the Reporting Person's continued service to the Issuer on each such vesting date.