BITGO HOLDINGS, INC.

Filing Date

Jan 21, 2026

Transaction Date

Jan 21, 2026

Accession Number

0001908561-26-000002

Form Type

3

Footnotes

1. (F1)Includes 1,000,000 restricted stock units ("RSUs") that vest in accordance with the terms of the award. Each RSU represents a contingent right to receive one share of Class A Common Stock. The Reporting Person has a right to exchange shares of Class A common stock issuable upon settlement of the RSUs for shares of the Issuer's Class B common stock pursuant to the terms of an Equity Exchange Rights Agreement between the Issuer and the Reporting Person.
2. (F2)Each share of Class B Common Stock is convertible into one share of the lssuer's Class A Common Stock at any time, at the election of the holder or automatically upon certain transfers, whether or not for value, or upon the occurrence of certain events or conditions described in the Issuer's Amended and Restated Certificate of Incorporation.
3. (F3)These shares are held by The AB Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
4. (F4)These shares are held by The AB Non-Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
5. (F5)These shares are held by The CB Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
6. (F6)These shares are held by The CB Non-Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
7. (F7)These shares are held by The CW Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
8. (F8)These shares are held by The CW Non-Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
9. (F9)These shares are held by The ZW Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
10. (F10)These shares are held by The ZW Non-Grantor GST Exempt Trust under The Belshe/Xu Family 2021 Irrevocable Trust, of which the Reporting Person is trustee.
11. (F11)The options vested as to 1/48th of the award on October 14, 2022, and the remaining 75% of the options will vest in equal monthly installments thereafter until such time as the options are 100% vested, subject to the Reporting Person's provision of service to the Issuer on each vesting date. The Reporting Person has a right to exchange shares of Class A common stock issuable upon exercise of the options for shares of the Issuer's Class B common stock pursuant to the terms of an Equity Exchange Rights Agreement between the Issuer and the Reporting Person.
12. (F12)The option, from which certain shares have been previously exercised, is fully vested. The Reporting Person has a right to exchange shares of Class A common stock issuable upon exercise of the options for shares of the Issuer's Class B common stock pursuant to the terms of an Equity Exchange Rights Agreement between the Issuer and the Reporting Person.