Octave Specialty Group (OSG) awards RSU grant to Executive VP

Rhea-AI Filing Summary

Smith R Sharon reported acquisition or exercise transactions in this Form 4 filing.

Octave Specialty Group Inc reported that Executive Vice President and Group COO Sharon R. Smith received a grant of 24,375 restricted stock units as part of her 2026 Long Term Incentive Plan award. Each unit represents a right to receive one share of common stock.

The RSUs vest in three equal annual installments on March 23, 2027, March 23, 2028, and March 23, 2029. Following this award, her reported holdings of this derivative security total 120,314 units, reflecting ongoing equity-based compensation tied to long-term company performance.

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

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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^*

Smith R Sharon

(Last) (First) (Middle)

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 & Group COO

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		24,375		(2)	(2)	Common Stock	24,375	$0	120,314	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 24,375 RSUs as part of her 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	03/24/2026
	** 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 insider transaction did OSG report for Sharon R. Smith?

Octave Specialty Group reported that Executive VP & Group COO Sharon R. Smith received a grant of 24,375 restricted stock units. These units are part of her 2026 Long Term Incentive Plan award and represent future rights to common shares.

How many RSUs did OSG executive Sharon R. Smith receive in March 2026?

Sharon R. Smith received 24,375 restricted stock units on March 23, 2026. Each RSU represents a contingent right to receive one share of Octave Specialty Group common stock, aligning her compensation with the company’s long-term equity performance.

When do Sharon R. Smith’s 2026 OSG RSU awards vest?

The 24,375 RSUs granted to Sharon R. Smith vest in three equal annual installments. Vesting begins March 23, 2027, with additional installments on March 23, 2028, and March 23, 2029, encouraging multi-year retention and performance alignment.

What does each OSG restricted stock unit granted to Sharon R. Smith represent?

Each restricted stock unit granted to Sharon R. Smith represents a contingent right to receive one share of Octave Specialty Group common stock. The award has no exercise price and converts into shares as vesting milestones are achieved over three years.

What are Sharon R. Smith’s reported OSG RSU holdings after this grant?

After the March 23, 2026 grant, Sharon R. Smith’s reported holdings of this RSU derivative security total 120,314 units. This figure reflects her accumulated equity-based awards, all of which convert into common shares as the specified vesting dates are met.