Octave Specialty Group director granted 7,441 RSUs

HAFT IAN DAVID reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

HAFT IAN DAVID reported acquisition or exercise transactions in this Form 4 filing.

Octave Specialty Group Inc. director Ian David Haft received a grant of 7,441 restricted stock units (RSUs). The award was made on April 1, 2026 and increases his directly held RSUs to 16,091. Each RSU represents a contingent right to receive one share of Octave Specialty Group common stock.

These RSUs are scheduled to vest on April 1, 2027. Once vested, they will settle into common shares on the vesting date or when Haft ceases to be a member of the Board of Directors, unless he elects to defer settlement.

Insider Trade Summary

Grant/Award: 7,441 shares

Grant/Award 1 txn

Insider HAFT IAN DAVID

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	7,441	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 16,091 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. RSU's granted on April 1, 2026 shall vest one year later on April 1, 2027. RSUs that have become vested shall settle and convert into shares of common stock upon the earlier of the vesting date or the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company, unless otherwise deferred upon the election of the Reporting person.

Key Figures

RSUs granted: 7,441 units Total RSUs after grant: 16,091 units Vesting date: April 1, 2027

3 metrics

RSUs granted 7,441 units Restricted stock units granted on April 1, 2026

Total RSUs after grant 16,091 units Director’s holdings following the reported transaction

Vesting date April 1, 2027 Scheduled vesting for the April 1, 2026 RSU grant

Key Terms

Restricted Stock Units, contingent right, vest, Board of Directors

4 terms

Restricted Stock Units financial

"security_title: "Restricted Stock Units""

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

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

vest financial

"RSU's granted on April 1, 2026 shall vest one year later on April 1, 2027"

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.

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.

FAQ

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

What insider transaction did OSG director Ian David Haft report?

Ian David Haft reported receiving 7,441 restricted stock units as a grant. These RSUs are a form of equity compensation that can convert into common shares, aligning his interests with Octave Specialty Group Inc. shareholders over time.

How many Octave Specialty Group (OSG) RSUs does Ian David Haft hold after this grant?

After the grant, Ian David Haft holds 16,091 restricted stock units in total. This reflects cumulative equity awards recorded in his name and shows his ongoing compensation link to Octave Specialty Group Inc.’s future share performance.

When do Ian David Haft’s new OSG restricted stock units vest?

The 7,441 restricted stock units granted on April 1, 2026 are scheduled to vest on April 1, 2027. Vesting means the award becomes earned, allowing eventual settlement into Octave Specialty Group Inc. common stock.

What does each restricted stock unit represent for Octave Specialty Group (OSG)?

Each restricted stock unit represents a contingent right to receive one share of Octave Specialty Group Inc. common stock. The units convert into shares only after vesting and settlement conditions described in the award terms are satisfied.

Under what conditions will Haft’s OSG RSUs settle into common stock?

Vested RSUs will settle into common shares on the earlier of the vesting date or when Ian David Haft resigns from, or otherwise ceases to be, a member of the Board. He may also defer settlement if he elects to do so.

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

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Accepted by SEC EDGAR 04/02/2026 - 04:38 PM EDT 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^*

HAFT IAN 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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

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)	04/01/2026		A		7,441		(2)	(2)	Common Stock	7,441	$0	16,091	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. RSU's granted on April 1, 2026 shall vest one year later on April 1, 2027. RSUs that have become vested shall settle and convert into shares of common stock upon the earlier of the vesting date or the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company, unless otherwise deferred upon the election of the Reporting person.

Remarks:

	William White, attorney-in-fact	04/02/2026
	** 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)