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Gladstein Lana

Disclosed activity across 1 company

Tapewire entity
50024
SEC CIK
0002127496

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Seaport Therapeutics, Inc.SPTX · Entity 4799General CounselApril 30, 2026May 04, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Seaport Therapeutics, Inc.

Report date April 30, 2026 · Filed May 04, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect33,515 Reported balance After 2026-05-04 transaction · row 1
1 source row

Row 1 · 2026-05-04 · Conversion · Acquired 33,515 · Balance 33,515

F1: Each share of Series B Preferred Stock (the "Preferred Stock") was convertible into Common Stock of the Issuer on a one-for-3.1407 basis at the option of the holder, and automatically converted upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $18.00 · Expires 2036-04-29Direct63,680 Reported balance After 2026-04-30 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-04-30 · Grant · Acquired 63,680 · Balance 63,680

F2: The shares underlying this option shall vest in forty-eight (48) equal monthly installments following April 30, 2026, subject to the Reporting Person's continued service on each such vesting date.

Series B Preferred StockSEC Table II · derivative / convertible securityDirect0 Reported balance After 2026-05-04 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-05-04 · Conversion · Disposed 105,263 · Balance 0

F1: Each share of Series B Preferred Stock (the "Preferred Stock") was convertible into Common Stock of the Issuer on a one-for-3.1407 basis at the option of the holder, and automatically converted upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

Filing footnotes · ownership attribution and instrument terms

F1: Each share of Series B Preferred Stock (the "Preferred Stock") was convertible into Common Stock of the Issuer on a one-for-3.1407 basis at the option of the holder, and automatically converted upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

F2: The shares underlying this option shall vest in forty-eight (48) equal monthly installments following April 30, 2026, subject to the Reporting Person's continued service on each such vesting date.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 04, 2026 Filed May 4, 2026 22:08 UTC Seaport Therapeutics, Inc. SPTX · Entity 4799 ConversionSeries B Preferred Stock · Derivative 105,263 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-204479 · ownership.xml · derivative · entry 3

Gladstein Lana · CIK 0002127496 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 33,515 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Each share of Series B Preferred Stock (the "Preferred Stock") was convertible into Common Stock of the Issuer on a one-for-3.1407 basis at the option of the holder, and automatically converted upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

F1 · derivative.exercise_date: Each share of Series B Preferred Stock (the "Preferred Stock") was convertible into Common Stock of the Issuer on a one-for-3.1407 basis at the option of the holder, and automatically converted upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

F1 · derivative.expiration_date: Each share of Series B Preferred Stock (the "Preferred Stock") was convertible into Common Stock of the Issuer on a one-for-3.1407 basis at the option of the holder, and automatically converted upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

Read SEC document
May 04, 2026 Filed May 4, 2026 22:08 UTC Seaport Therapeutics, Inc. SPTX · Entity 4799 ConversionCommon Stock 33,515 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-204479 · ownership.xml · nonDerivative · entry 1

Gladstein Lana · CIK 0002127496 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,515

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Each share of Series B Preferred Stock (the "Preferred Stock") was convertible into Common Stock of the Issuer on a one-for-3.1407 basis at the option of the holder, and automatically converted upon the closing of the Issuer's initial public offering without payment of further consideration. The Preferred Stock had no expiration date.

Read SEC document
April 30, 2026 Filed May 4, 2026 22:08 UTC Seaport Therapeutics, Inc. SPTX · Entity 4799 GrantStock Option (Right to Buy) · Derivative 63,680 $0.00 Strike: $18.00 $0.00
Disclosure

SEC source: 0001193125-26-204479 · ownership.xml · derivative · entry 2

Gladstein Lana · CIK 0002127496 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 63,680

Underlying: Common Stock · 63,680 shares

Expires 2036-04-29

F2 · derivative.exercise_date: The shares underlying this option shall vest in forty-eight (48) equal monthly installments following April 30, 2026, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.