Seaport Therapeutics director Torres buys 5,000 shares

A separate trust holding lists 13,406 shares, with a disclaimer of beneficial ownership for Section 16 purposes except for any pecuniary interest.

Available on EDGAR 11/04/2026 - 07:30 AM EST Accepted by SEC EDGAR 11/04/2026 - 07:30 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Seaport Therapeutics, Inc. director Denice Torres purchased 5,000 common shares on November 3, 2026, at $19.8650 per share; her reported direct holdings after the purchase were 5,000 shares. No Rule 10b5-1 plan is reported for the purchase. A separate holding entry lists 13,406 shares held by the Denice M. Torres Revocable Trust as of November 3, 2026. Torres disclaims beneficial ownership of those shares for Section 16 purposes, except to the extent of her pecuniary interest, if any.

Insider Trade Summary

Net Buyer: 5,000 shares

Net Buy 1 txn

Insider Torres Denice

Role Director

Bought 5,000 shs ($99K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	5,000	$19.865	$99K
Holding	Common Stock F1	--	--	--

Holdings After Transaction: Common Stock — 5,000 shares (Direct); Common Stock — 13,406 shares (Indirect, By Denice M. Torres Revocable Trust)

Holdings Before and After: Common Stock, 0 to 5,000 shares (Direct)

Footnotes (1)

1. F1. The Reporting Person disclaims beneficial ownership of such shares for purposes of Section 16 of the Exchange Act, except to the extent of her pecuniary interest therein, if any. This report shall not be deemed an admission that she is a beneficial owner of such shares for the purpose of Section 16 of the Exchange Act, or for any other purpose.

Key Figures

Common shares purchased: 5,000 shares Purchase price: $19.8650 per share Direct shares following purchase: 5,000 shares +1 more

4 metrics

Common shares purchased 5,000 shares Denice Torres, November 3, 2026

Purchase price $19.8650 per share November 3, 2026

Direct shares following purchase 5,000 shares Denice Torres, November 3, 2026

Shares held by revocable trust 13,406 shares Denice M. Torres Revocable Trust, November 3, 2026

Key Terms

beneficial ownership, Section 16, pecuniary interest, Rule 10b5-1 plan

4 terms

beneficial ownership regulatory

"disclaims beneficial ownership of such shares"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Section 16 regulatory

"for purposes of Section 16 of the Exchange Act"

Section 16 is a U.S. securities law rule that governs the trading and disclosure obligations of company insiders — typically officers, directors and large shareholders — to promote transparency and deter unfair profit-taking. It requires insiders to publicly report their stock trades and allows companies or the issuer to reclaim quick, short-term profits from certain insider trades, like a scoreboard and a refund policy that help investors see and limit possible insider advantage.

pecuniary interest financial

"except to the extent of her pecuniary interest therein, if any"

Rule 10b5-1 plan regulatory

"Rule 10b5-1 plan"

A Rule 10b5-1 plan is a prearranged, written schedule that lets corporate insiders buy or sell company stock at set times or amounts, even if they later learn material nonpublic information. Think of it like setting an automatic thermostat for trades: it creates a clear record that trades were planned in advance, reducing the risk of insider-trading accusations and helping investors trust that insider transactions are routine rather than based on secret information.

FAQ

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

How many SPTX shares did director Denice Torres buy?

Denice Torres purchased 5,000 SPTX common shares on November 3, 2026, at $19.8650 per share. Her reported direct holdings after the purchase were 5,000 shares. No Rule 10b5-1 plan is reported for the purchase.

How many SPTX shares are held by Denice Torres's revocable trust?

The Denice M. Torres Revocable Trust was listed as holding 13,406 SPTX common shares on November 3, 2026. Torres disclaimed beneficial ownership of those shares for Section 16 purposes, except to the extent of her pecuniary interest, if any.

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

Form 4 Insider Transactions: What Each Field Means →

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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^*

Torres Denice

(Last) (First) (Middle)

SEAPORT THERAPEUTICS, INC.

101 SEAPORT BLVD., FLOOR 12

(Street)

BOSTON MASSACHUSETTS 02210

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Seaport Therapeutics, Inc. [ SPTX ]

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)
11/03/2026

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
Common Stock	11/03/2026		P		5,000	A	$19.865	5,000	D
Common Stock								13,406	I	By Denice M. Torres Revocable Trust(1)

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

Explanation of Responses:

1. The Reporting Person disclaims beneficial ownership of such shares for purposes of Section 16 of the Exchange Act, except to the extent of her pecuniary interest therein, if any. This report shall not be deemed an admission that she is a beneficial owner of such shares for the purpose of Section 16 of the Exchange Act, or for any other purpose.

	/s/ Lana Gladstein, Attorney-in-Fact	11/04/2026
	** 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)