Octave EVP exercises 13,206 RSUs, updates stake

Octave Specialty Group Inc. executive vice president, CFO and treasurer David Trick reported routine equity compensation activity tied to his 2025 Long Term Incentive Plan.

Rhea-AI Filing Summary

Octave Specialty Group Inc. executive vice president, CFO and treasurer David Trick reported routine equity compensation activity tied to his 2025 Long Term Incentive Plan. On July 9, 2026, 13,206 Restricted Stock Units vested and were settled into common shares, and 6,741 shares were withheld by the company at $6.08 per share to satisfy tax withholding obligations. Following these transactions, Trick directly holds 267,096 shares of common stock and 124,978 RSUs. The RSU award vests in three equal annual installments on July 9, 2026, July 9, 2027, and July 9, 2028.

Filing Explained

The CFO completed the first RSU vesting installment: 13,206 shares settled, 6,741 withheld for taxes, and 267,096 common shares remain directly held.

The July 13, 2026 Form 4 records completed vesting and settlement of the first installment of the CFO’s RSU award on July 9, 2026.

It records 13,206 common shares acquired, 6,741 shares withheld for taxes, and 267,096 common shares directly owned after the transactions.

The filing uses an M-coded transaction for the RSU vesting and settlement and an F-coded transaction for the company’s tax withholding; the supplied Form 4 definitions identify F as shares withheld to cover taxes on vesting.

The award vests in three equal annual installments, with the filing reporting the July 9, 2026 installment and scheduling the remaining installments for July 9, 2027 and July 9, 2028.

Separately, the filing reports 124,978 RSUs still beneficially owned directly; each RSU is a contingent right to receive one common share.

Insider Trade Summary

13,206 shares exercised/converted

Exercise 3 txns

Insider Trick David

Role Exec VP, CFO & Treasurer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units F3, F4	13,206	$0.00	$0.00
Exercise	Common Stock F1	13,206	--	--
Tax Withholding	Common Stock F2	6,741	$6.08	$41K

Holdings After Transaction: Restricted Stock Units — 124,978 contracts (Direct); Common Stock — 267,096 shares (Direct)

Footnotes (4)

1. F1. The reporting person acquired shares of common stock Octave Specialty Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's restricted stock unit ("RSU") awards as part of their 2025 Long Term Incentive Plan.
2. F2. Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.
3. F3. Each RSU represents a contingent right to receive one share of the common stock of the Company's common stock.
4. F4. The RSUs vested pursuant to the first of three equal annual installments under the reporting person's 2025 Long Term Incentive Plan award, which vests in equal installments on July 9, 2026, July 9, 2027, and July 9, 2028.

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Available on EDGAR 07/13/2026 - 04:02 PM Accepted by SEC EDGAR 07/13/2026 - 04:02 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^*

Trick David

(Last) (First) (Middle)

C/O OCTAVE SPECIALTY GROUP, INC.

40 WALL STREET, 55TH FLOOR

(Street)

NEW YORK NEW YORK 10005

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
OCTAVE SPECIALTY GROUP INC [ OSG ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Exec VP, CFO & Treasurer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/09/2026

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
Common Stock	07/09/2026		M		13,206	A	(1)	273,837	D
Common Stock	07/09/2026		F		6,741	D	$6.08	267,096(2)	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
Restricted Stock Units	(3)	07/09/2026		M			13,206	(4)	(4)	Common Stock	13,206	$0	124,978	D

Explanation of Responses:

1. The reporting person acquired shares of common stock Octave Specialty Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's restricted stock unit ("RSU") awards as part of their 2025 Long Term Incentive Plan.

2. Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

3. Each RSU represents a contingent right to receive one share of the common stock of the Company's common stock.

4. The RSUs vested pursuant to the first of three equal annual installments under the reporting person's 2025 Long Term Incentive Plan award, which vests in equal installments on July 9, 2026, July 9, 2027, and July 9, 2028.

Remarks:

Exhibit 24.1 Power of Attorney

	Reid Powell, attorney-in-fact	07/13/2026
	** 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)