JRVR (JRVR) legal chief reports tax-withholding share dispositions

Rhea-AI Filing Summary

James River Group Holdings, Inc. senior vice president and chief legal officer Jeanette L. Miller reported two tax-related share dispositions. On March 1, 2026, a total of 482 and 1,550 shares of common stock were withheld by the company to cover tax liabilities tied to vesting restricted share units.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Miller Jeanette L

Role SVP, Chief Legal Officer

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	482	$7.00	$3K
Tax Withholding	Common Stock	1,550	$7.00	$11K

Holdings After Transaction: Common Stock — 61,038 shares (Direct)

Footnotes (1)

1. The shares disposed of were withheld by James River Group Holdings, Inc. for payment of the tax liability incident to the vesting of 1,426 restricted share units on March 1, 2026. The shares disposed of were withheld by James River Group Holdings, Inc. for payment of the tax liability incident to the vesting of 4,592 restricted share units on March 1, 2026.

Form 4 Insider Transactions: What Each Field Means →

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
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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^*

Miller Jeanette L

(Last) (First) (Middle)

C/O JAMES RIVER GROUP HOLDINGS, INC.

1414 RALEIGH ROAD, SUITE 405

(Street)

CHAPEL HILL NC 27517

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
James River Group Holdings, Inc. [ JRVR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/01/2026

4. If Amendment, Date of 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

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
Common Stock	03/01/2026		F		482(1)	D	$7	61,038	D
Common Stock	03/01/2026		F		1,550(2)	D	$7	59,488	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. The shares disposed of were withheld by James River Group Holdings, Inc. for payment of the tax liability incident to the vesting of 1,426 restricted share units on March 1, 2026.

2. The shares disposed of were withheld by James River Group Holdings, Inc. for payment of the tax liability incident to the vesting of 4,592 restricted share units on March 1, 2026.

Remarks:

	/s/ Jeanette L. Miller	03/03/2026
	** 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.

FAQ

What insider transaction did JRVR's Jeanette L. Miller report on this Form 4?

Jeanette L. Miller reported two tax-withholding dispositions of JRVR common stock. On March 1, 2026, 482 and 1,550 shares were withheld by James River Group Holdings, Inc. to satisfy tax liabilities arising from the vesting of restricted share units granted to her.

Were Jeanette L. Miller's JRVR share dispositions open-market sales?

No, the reported JRVR share dispositions were not open-market sales. The company withheld 482 and 1,550 shares of common stock on March 1, 2026 to pay tax liabilities associated with vesting restricted share units, as described directly in the filing footnotes.

What triggered the JRVR share withholding for Jeanette L. Miller?

The share withholding was triggered by the vesting of restricted share units. Footnotes state that 1,426 and 4,592 restricted share units vested on March 1, 2026, and James River Group Holdings, Inc. withheld shares to cover the related tax liabilities on those vesting events.

How many JRVR shares were withheld for Jeanette L. Miller’s tax obligations?

A total of 482 and 1,550 JRVR common shares were withheld. These withholdings, disclosed as code F transactions, represent payment of tax liabilities incident to the vesting of separate restricted share unit awards on March 1, 2026, according to the Form 4 footnotes.

What does transaction code F mean in Jeanette L. Miller’s JRVR Form 4?

Transaction code F denotes a tax-withholding disposition. In this JRVR Form 4, it indicates shares were withheld by the issuer to satisfy the exercise price or tax liability tied to vesting restricted share units, rather than shares being sold on the open market.