Bitgo CFO relinquishes 88 shares for taxes

Bitgo’s CFO had 88 shares withheld and cancelled to cover taxes from RSU vesting, an administrative equity event rather than an open-market trade.

Rhea-AI Filing Summary

BITGO HOLDINGS, INC. (BTGO) reported that Chief Financial Officer Edward Reginelli had 88 shares of Class A Common Stock withheld on September 6, 2026, at $7.30 per share. The shares were relinquished and cancelled to cover federal and state tax withholding from vesting restricted stock units, leaving him with 582,310 directly held shares. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Tax Withholding: 88 shares

Tax Withholding 1 txn

Insider Reginelli Edward

Role Chief Financial Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1	88	$7.30	$642.40

Holdings After Transaction: Class A Common Stock — 582,310 shares (Direct)

Footnotes (1)

1. F1. Represents shares relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of restricted stock units.

Key Figures

Shares relinquished for tax withholding: 88 shares Per-share value of relinquished shares: $7.30 per share Shares held after transaction: 582,310 shares +1 more

4 metrics

Shares relinquished for tax withholding 88 shares Class A Common Stock disposed of on September 6, 2026 to cover tax withholding from RSU vesting

Per-share value of relinquished shares $7.30 per share Value applied to the 88 shares relinquished on September 6, 2026

Shares held after transaction 582,310 shares Direct holdings of Class A Common Stock reported after the September 6, 2026 tax-withholding event

Number of tax-withholding events in this filing 1 event Single reported disposition of shares to satisfy tax withholding obligations

Key Terms

restricted stock units, tax withholding obligations, Class A Common Stock

3 terms

restricted stock units financial

"resulting from the vesting of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"pay federal and state tax withholding obligations of the Reporting Person"

Class A Common Stock financial

"Represents shares relinquished by the Reporting Person"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

FAQ

What insider transaction did BTGO’s CFO report on September 6, 2026?

Edward Reginelli reported that 88 shares of Class A Common Stock were relinquished and cancelled on September 6, 2026, to cover federal and state tax withholding obligations arising from the vesting of restricted stock units.

At what price were the 88 BTGO shares used for tax withholding valued?

The 88 shares used to satisfy tax withholding obligations were valued at $7.30 per share, as reported for the September 6, 2026 disposition of Class A Common Stock.

How many BTGO shares does the CFO hold after this reported transaction?

Following the tax-related share relinquishment, Chief Financial Officer Edward Reginelli is reported to hold 582,310 shares of Bitgo Holdings, Inc. Class A Common Stock directly.

Was the BTGO CFO’s September 2026 transaction an open-market sale?

No. The filing states the 88 shares were relinquished and cancelled in exchange for Bitgo’s agreement to pay the CFO’s tax withholding obligations from vesting restricted stock units, rather than being sold in the open market.

Was the BTGO CFO’s transaction made under a Rule 10b5-1 plan?

No Rule 10b5-1 trading plan is reported. The document-level indicator for Rule 10b5-1 plans is marked as not selected for this Form 4.

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Available on EDGAR 09/09/2026 - 08:20 PM Accepted by SEC EDGAR 09/09/2026 - 08:19 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Reginelli Edward

(Last) (First) (Middle)

C/O BITGO HOLDINGS, INC.

101 S. REID STREET, SUITE 307, PMB# 9793

(Street)

SIOUX FALLS SOUTH DAKOTA 57103

(City) (State) (Zip)

UNITED STATES

(Country)

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 Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/06/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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
Class A Common Stock	09/06/2026		F(1)		88	D	$7.3	582,310	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. Represents shares relinquished by the Reporting Person and cancelled by the Issuer in exchange for the Issuer's agreement to pay federal and state tax withholding obligations of the Reporting Person resulting from the vesting of restricted stock units.

	/s/ Edward Reginelli	09/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)