Octave Specialty Group (OSG) CEO gets 99,375 RSU award

Rhea-AI Filing Summary

LeBlanc Claude reported acquisition or exercise transactions in this Form 4 filing.

Octave Specialty Group’s Chief Executive Officer Claude LeBlanc reported a compensation grant of 99,375 restricted stock units (RSUs). Each RSU represents a right to receive one share of common stock at no purchase price. The award is part of his 2026 Long Term Incentive Plan.

The RSUs vest in three equal annual installments on March 23 of 2027, 2028 and 2029, encouraging longer-term retention and alignment with shareholder interests. After this award, LeBlanc’s reported direct holdings total 520,212 shares of common stock underlying RSUs and stock.

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

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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^*

LeBlanc Claude

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Executive Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/23/2026

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

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	(1)	03/23/2026		A		99,375		(2)	(2)	Common Stock	99,375	$0	520,212	D

Explanation of Responses:

1. Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Octave Specialty Group, Inc. (the "Company").

2. On March 23, 2026 the reporting person received a grant of 99,375 RSUs as part of his 2026 Long Term Incentive Plan award. The RSUs will vest in three equal annual installments commencing March 23, 2027, March 23, 2028, and March 23, 2029.

Remarks:

	William White, attorney-in-fact	03/25/2026
	** 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)

FAQ

What did Claude LeBlanc report in this Form 4 for OSG?

Claude LeBlanc reported receiving a grant of 99,375 restricted stock units from Octave Specialty Group. The award is part of his 2026 Long Term Incentive Plan and represents additional compensation, not an open-market stock purchase or sale.

How many restricted stock units did the OSG CEO receive and how do they vest?

The CEO received 99,375 restricted stock units. According to the disclosure, these RSUs vest in three equal annual installments on March 23 of 2027, 2028 and 2029, creating a multi-year incentive tied to his continued service with the company.

Does this Octave Specialty Group Form 4 show any open-market buying or selling?

No, the Form 4 shows a grant of restricted stock units as compensation, not an open-market transaction. The transaction code is “A” for grant or award, and the price per share is listed as zero, indicating no cash purchase or sale occurred.

How many OSG shares does Claude LeBlanc hold after this RSU grant?

After this grant, Claude LeBlanc’s reported direct holdings total 520,212 shares of Octave Specialty Group common stock. This figure includes the 99,375 underlying shares associated with the new restricted stock unit award reported in the Form 4 filing.

What does each OSG restricted stock unit in this filing represent?

Each restricted stock unit represents a contingent right to receive one share of Octave Specialty Group common stock. The units convert into shares only as they vest over time, aligning the CEO’s compensation with the company’s long-term performance and his continued employment.