X0306 4 2022-05-20 0001836981 BigBear.ai Holdings, Inc. BBAI 0001430575 Dinu Raluca 1731 EMBARCADERO ROAD SUITE 200 PALO ALTO CA 94303 1 0 0 0 Common Stock 2022-05-20 4 J 0 850000 0.00 D 8702000 I By GigAcquisitions4, LLC Common Stock 2022-05-20 4 J 0 21250 0.00 A 21250 D Private Warrants 11.50 2022-05-20 4 J 0 283333 0.00 D 2022-02-01 2026-12-07 Common Stock 283333 0 I By GigAcquisitions4, LLC Private Warrants 11.50 2022-05-20 4 J 0 7083 0.00 A 2022-02-01 2026-12-07 Common Stock 7083 7083 D Distribution of shares of Common Stock to direct and indirect members of GigAcqusitions4, LLC (the "Sponsor"). The total reported shares is a result of the deduction of the number of disposed shares of Common Stock from 9,552,000 shares of Common Stock as previously reported in Form 4 filed by the Reporting Person on December 8, 2021. The shares of Common Stock are held directly by the Sponsor. Dr. Dinu is a member of GigFounders, LLC, which has a financial and voting interest in the Sponsor as a member of the Sponsor and that entities this partnership to participate in any economic return of the Sponsor in accordance with terms negotiated with the other holders of financial and voting interests in the Sponsor. Accordingly, the shares of Common Stock held by the Sponsor, subject to the interests of such other holders, are indirectly and beneficially owned by Dr. Dinu by virtue of her financial interest in GigFounders, LLC. Distribution of Private Warrants to direct and indirect members of the Sponsor. The Private Warrants were held directly by the Sponsor. Dr. Dinu is a member of GigFounders, LLC, which has a financial and voting interest in the Sponsor as a member of the Sponsor and that entities this partnership to participate in any economic return of the Sponsor in accordance with terms negotiated with the other holders of financial and voting interests in the Sponsor. Accordingly, the Private Warrants held by the Sponsor, subject to the interests of such other holders, are indirectly and beneficially owned by Dr. Dinu by virtue of her financial interest in GigFounders, LLC. /s/ Dr. Raluca Dinu 2022-05-24