OSG director granted 6,500 restricted stock units

Matus Kristi Ann reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Matus Kristi Ann reported acquisition or exercise transactions in this Form 4 filing.

Octave Specialty Group Inc director Kristi Ann Matus received a grant of 6,500 Restricted Stock Units (RSUs) on July 1, 2026. Each RSU represents a contingent right to receive one share of common stock. Following this award, she holds 22,591 shares-related units directly.

The RSUs granted on July 1, 2026 will vest on July 1, 2027. Once vested, they will settle into common shares when she leaves the Board of Directors or if there is a change of control of the company.

Insider Trade Summary

Grant/Award: 6,500 shares

Grant/Award 1 txn

Insider Matus Kristi Ann

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	6,500	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 22,591 contracts (Direct)

Footnotes (2)

1. F1. 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. F2. RSUs granted on July 1, 2026 shall vest one year later on July 1, 2027. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

Key Figures

RSUs granted: 6,500 units Holdings after grant: 22,591 units Vesting date: July 1, 2027 +1 more

4 metrics

RSUs granted 6,500 units Restricted Stock Units granted on July 1, 2026

Holdings after grant 22,591 units Total shares-related units following the RSU award

Vesting date July 1, 2027 RSUs granted July 1, 2026 vest one year later

RSU-to-share ratio 1 RSU : 1 share Each RSU represents a contingent right to one common share

Key Terms

Restricted Stock Units, contingent right, change of control, Board of Directors, +1 more

5 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") represents a contingent right to receive one share"

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.

contingent right financial

"represents a contingent right to receive one share of the common stock"

change of control financial

"upon a "change of control" of the Company"

A change of control occurs when the ownership or management of a company shifts significantly, such as through a sale, merger, or acquisition, resulting in new leadership or ownership structure. This change can impact the company's direction and decision-making, which is important for investors because it may affect the company's stability, strategy, and future prospects.

Board of Directors financial

"ceases to be a member of, the Board of Directors of the Company"

The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.

vest financial

"RSUs granted on July 1, 2026 shall vest one year later"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did OSG director Kristi Ann Matus report on this Form 4?

Kristi Ann Matus reported receiving a grant of 6,500 Restricted Stock Units from Octave Specialty Group Inc. The RSUs are a form of equity compensation that convert into common stock, rather than an open-market purchase or sale of existing OSG shares.

When do the newly granted OSG Restricted Stock Units vest for Kristi Ann Matus?

The 6,500 Restricted Stock Units granted on July 1, 2026 vest one year later, on July 1, 2027. Vesting means the director earns the right to receive the underlying common shares, subject to the settlement conditions described in the award terms.

How many shares or units does Kristi Ann Matus hold after this OSG RSU grant?

After this grant, Kristi Ann Matus holds 22,591 shares-related units directly. This total includes the 6,500 newly awarded Restricted Stock Units that each represent a contingent right to receive one share of Octave Specialty Group Inc common stock upon settlement.

What does each OSG Restricted Stock Unit represent for Kristi Ann Matus?

Each Restricted Stock Unit represents a contingent right to receive one share of Octave Specialty Group Inc common stock. The shares are not issued immediately; they are delivered later when the RSUs vest and subsequently settle under the conditions set in the award.

Under what conditions will the OSG RSUs settle into common shares for Kristi Ann Matus?

Once vested, the RSUs will settle and convert into common shares when Kristi Ann Matus resigns from, or otherwise ceases to be a member of, the Board of Directors, or upon a defined change of control of Octave Specialty Group Inc.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 07/07/2026 - 05:02 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^*

Matus Kristi Ann

(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
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/01/2026

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)	07/01/2026		A		6,500		(2)	(2)	Common Stock	6,500	$0	22,591	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. RSUs granted on July 1, 2026 shall vest one year later on July 1, 2027. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

Remarks:

	William J. White, attorney in fact	07/07/2026
	** 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)