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CIK 0002042347 · Non-accelerated filer<br>Smaller reporting company<br>Emerging growth company

Seaport Therapeutics, Inc.

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Ticker
SPTX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
992235719
Phone
617-807-4062
Business address
6 TIDE STREET, SUITE 400, BOSTON, MA, 02110
Open-market buys, last 90 days
$99,325
in 1 filing
Open-market sales, last 90 days
$0
in 0 filings

Net +$99,325. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. Torres Denice +$99K Director 1 filing
Date Insider Transaction Shares Price Value Owned after
2026-05-04 PAUL STEVEN M Director Conversion +67,031 863,031
2026-05-04 PAUL STEVEN M Director Conversion · Series B Preferred Stock −210,526 0
2026-05-04 ARCH Venture Partners XII, LLC 10% owner Conversion +2,513,686 2,513,686
2026-05-04 ARCH Venture Partners XII, LLC 10% owner Conversion +2,681,265 5,194,951
2026-05-04 ARCH Venture Partners XII, LLC 10% owner Purchase +1,100,000 $18.00 $19.8M 6,294,951
2026-05-04 ARCH Venture Partners XII, LLC 10% owner Conversion · Series A-2 Preferred Stock −2,513,686 0
2026-05-04 ARCH Venture Partners XII, LLC 10% owner Conversion · Series B Preferred Stock −2,681,265 0
2026-05-04 Loebel Antony Chief Medical Officer Conversion +20,109 20,109
2026-05-04 Loebel Antony Chief Medical Officer Conversion · Series B Preferred Stock −63,157 0
2026-04-30 Zohar Daphne Chief Executive Officer Grant or award · Stock Option (Right to Buy) +271,813 271,813
2026-04-30 Zohar Daphne Chief Executive Officer Grant or award · Stock Option (Right to Buy) +1,486,786 1,486,786
2026-04-30 White Lauren Chief Financial Officer Grant or award · Stock Option (Right to Buy) +63,680 63,680
2026-04-30 Wheadon David E. Director Grant or award · Stock Option (Right to Buy) +12,258 12,258
2026-04-30 PETERSON SANDRA E Director Grant or award · Stock Option (Right to Buy) +12,258 12,258
2026-04-30 Gladstein Lana General Counsel Grant or award · Stock Option (Right to Buy) +63,680 63,680
2026-04-30 Chen Michael Cunyuan Chief Scientific Officer Grant or award · Stock Option (Right to Buy) +63,680 63,680
2026-04-30 Torres Denice Director Grant or award · Stock Option (Right to Buy) +12,258 12,258
2026-04-30 PAUL STEVEN M Director Grant or award · Stock Option (Right to Buy) +12,258 12,258
2026-04-30 PAUL STEVEN M Director Grant or award · Stock Option (Right to Buy) +991,192 991,192
2026-04-30 HOMBACH ROBERT J. Director Grant or award · Stock Option (Right to Buy) +12,258 12,258

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