Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Horowitz Jeff Peter 2. Issuer Name and Ticker or Trading Symbol BITGO HOLDINGS, INC. [BTGO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Compliance Officer (Last) (First) (Middle) C/O BITGO HOLDINGS, INC., 101 S. REID STREET, SUITE 307, PMB# 9793 3. Date of Earliest Transaction (Month/Day/Year) 07/22/2026 (Street) SIOUX FALLS, SD 57103 4. If Amendment, Date Original Filed (Month/Day/Year) 6. Individual or Joint/Group Filing (Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Phantom Stock Units (Cash-settled Restricted Stock Units)

(1)

07/22/2026

M

261

(2)

(3)

Class A Common Stock

261

(1)

5,217

D

Phantom Stock Units (Cash-settled Restricted Stock Units)

(1)

07/22/2026

M

782

(4)

(3)

Class A Common Stock

782

(1)

23,445

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Horowitz Jeff Peter C/O BITGO HOLDINGS, INC. 101 S. REID STREET, SUITE 307, PMB# 9793 SIOUX FALLS, SD 57103			Chief Compliance Officer

Signatures

/s/ Edward Reginelli, Attorney-in-Fact		07/28/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Each phantom stock unit (each a "Unit") represents the economic equivalent of one share of the Issuer's Class A common stock. On July 24, 2026, certain Units held by the Reporting Person were settled for cash as described in footnotes (2) and (4) to this Form 4.
(2)	The reported transaction represents the vesting of 261 Units on July 22, 2026, which transaction settled on July 24, 2026. The remaining 5,217 Units vest in substantially equal monthly installments through March 1, 2028, subject to the Reporting Person's provision of service to the Issuer on each vesting date.
(3)	This award does not expire; it either vests or is canceled prior to the vesting date.
(4)	The reported transaction represents the vesting of 782 Units on July 22, 2026, which transaction settled on July 24, 2026. The remaining 23,445 Units vest in substantially equal monthly installments through December 18, 2028, subject to the Reporting Person's provision of service to the Issuer on each vesting date.

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