[Form 4] Seaport Entertainment Group Inc. Insider Trading Activity

Rhea-AI Filing Summary

Seaport Entertainment Group Inc. (SEG) reported insider awards to CEO Matthew Morris Partridge on a Form 4 filed for transactions dated 09/18/2025. The filing shows the grant of 13,555 restricted stock units (RSUs), each representing a contingent right to one share, and the grant of a non-qualified stock option for 22,189 shares with an exercise price of $25.23. The RSUs vest in three substantially equal annual installments beginning 09/18/2026, and the options vest in four substantially equal annual installments beginning the same date; both are subject to continued service. Following these grants, the reporting person beneficially owns 95,634 shares of common stock and holds 22,189 options.

Insights

Corporate Compensation Analyst

TL;DR: CEO received equity awards (RSUs and options) with multi-year vesting to align incentives with long-term performance.

The grants include 13,555 RSUs and 22,189 stock options at an exercise price of $25.23. Vesting schedules—three years for RSUs and four years for options—tie compensation to continued service and future performance. The awards increase the CEO's potential future stake while current beneficial ownership stands at 95,634 shares. These grants are typical for executive retention and long-term alignment; their dilutive impact depends on total outstanding shares, which is not provided in this filing.

Securities Governance Specialist

TL;DR: Form 4 discloses standard equity-based compensation; no dispositions or sales reported.

The filing shows acquisitions (grants) only, coded as A, with $0 reported price for RSUs and options reflecting grants rather than open-market purchases. There are no sales or hedging transactions disclosed. The filing was signed by an attorney-in-fact and reflects compliance with Section 16 reporting. Materiality is limited to grant size absent context on company capitalization or proxy-disclosed executive pay limits.

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
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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^*

PARTRIDGE MATTHEW MORRIS

(Last) (First) (Middle)

199 WATER STREET

28TH FLOOR

(Street)

NEW YORK NY 10038

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Seaport Entertainment Group Inc. [ SEG ]

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

3. Date of Earliest Transaction (Month/Day/Year)
09/18/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	09/18/2025		A		13,555(1)	A	$0	95,634	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
Non-Qualified Stock Option (Right to Buy)	$25.23	09/18/2025		A		22,189		(2)	09/18/2035	Common Stock	22,189	$0	22,189	D

Explanation of Responses:

1. Represents restricted stock units ("RSUs") granted to the Reporting Person under the Issuer's 2024 Equity Incentive Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock. The RSUs vest in three substantially equal annual installments beginning on September 18, 2026, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

2. The options vest in four substantially equal annual installments beginning on September 18, 2026, subject to the Reporting Person's continued service with the Issuer or its subsidiaries through such date.

	/s/ Lucy Fato, Attorney-in-Fact	09/19/2025
	** 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).
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FAQ

What equity awards did SEG CEO Matthew Partridge receive on 09/18/2025?

He was granted 13,555 RSUs and a non-qualified stock option for 22,189 shares with an exercise price of $25.23.

When do the RSUs and options vest for SEG insider grants?

The RSUs vest in three substantially equal annual installments beginning 09/18/2026. The options vest in four substantially equal annual installments beginning 09/18/2026.

How many shares does the reporting person beneficially own after the grants?

The filing reports 95,634 shares beneficially owned following the reported transactions and 22,189 options outstanding.

Did the Form 4 report any sales or dispositions of SEG stock by the insider?

No. The transactions are reported as acquisitions (Code A) and no dispositions are listed.

Does the filing show any hedging or derivative dispositions?

The filing lists only a non-qualified stock option grant and RSUs; no hedging instruments or dispositions are disclosed.