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person · Reporting owner

Houghton Michael

Disclosed activity across 1 company

Tapewire entity
40889
SEC CIK
0001873008

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ASSEMBLY BIOSCIENCES, INC.ASMB · Entity 5216DirectorJune 04, 2026June 05, 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.

ASSEMBLY BIOSCIENCES, INC.

Report date June 04, 2026 · Filed June 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $24.11 · Expires 2036-06-04Direct8,000 Reported balance After 2026-06-04 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-04 · Grant · Acquired 8,000 · Balance 8,000

F1: Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) June 4, 2027 and (2) the date of the Issuer's 2027 annual meeting of stockholders.

Filing footnotes · ownership attribution and instrument terms

F1: Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) June 4, 2027 and (2) the date of the Issuer's 2027 annual meeting of stockholders.

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
June 04, 2026 Filed Jun 5, 2026 20:40 UTC ASSEMBLY BIOSCIENCES, INC. ASMB · Entity 5216 GrantStock Option (right to buy) · Derivative 8,000 $0.00 Strike: $24.11 $0.00
Disclosure

SEC source: 0001193125-26-259776 · ownership.xml · derivative · entry 1

Houghton Michael · CIK 0001873008 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,000

Underlying: Common Stock · 8,000 shares

Expires 2036-06-04

F1 · derivative.exercise_date: Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) June 4, 2027 and (2) the date of the Issuer's 2027 annual meeting of stockholders.

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June 05, 2025 Filed Jun 9, 2025 20:05 UTC ASSEMBLY BIOSCIENCES, INC. ASMB · Entity 5216 GrantStock Option (right to buy) · Derivative 3,500 $0.00 Strike: $15.81 $0.00
Disclosure

SEC source: 0000950170-25-083704 · ownership.xml · derivative · entry 1

Houghton Michael · CIK 0001873008 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,500

Underlying: Common Stock · 3,500 shares

Expires 2035-06-05

F1 · derivative.exercise_date: Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) June 5, 2026 and (2) the date of the Issuer's 2026 annual meeting of stockholders.

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December 30, 2024 Filed Dec 31, 2024 21:24 UTC ASSEMBLY BIOSCIENCES, INC. ASMB · Entity 5216 PurchaseCommon Stock 3,202 $15.61 $49,997.63
Disclosure

SEC source: 0000950170-24-141616 · ownership.xml · nonDerivative · entry 1

Houghton Michael · CIK 0001873008 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By IRA

Disclosed balance after: 3,202

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $15.54 to $15.70, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within.

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May 29, 2024 Filed May 30, 2024 20:10 UTC ASSEMBLY BIOSCIENCES, INC. ASMB · Entity 5216 GrantStock Option (right to buy) · Derivative 2,750 $0.00 Strike: $15.06 $0.00
Disclosure

SEC source: 0000950170-24-066585 · ownership.xml · derivative · entry 1

Houghton Michael · CIK 0001873008 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,750

Underlying: Common Stock · 2,750 shares

Expires 2034-05-29

F1 · derivative.exercise_date: Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) May 29, 2025 and (2) the date of the Issuer's 2025 annual meeting of stockholders.

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May 25, 2023 Filed May 30, 2023 20:20 UTC ASSEMBLY BIOSCIENCES, INC. ASMB · Entity 5216 GrantStock Option (right to buy) · Derivative 20,000 $0.00 Strike: $0.97 $0.00
Disclosure

SEC source: 0001209191-23-032874 · doc4.xml · derivative · entry 1

Houghton Michael · CIK 0001873008 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2033-05-25

F1 · derivative.exercise_date: Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) May 25, 2024 and (2) the date of the Issuer's 2024 annual meeting of stockholders.

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May 25, 2022 Filed May 27, 2022 20:34 UTC ASSEMBLY BIOSCIENCES, INC. ASMB · Entity 5216 GrantStock Option (right to buy) · Derivative 20,000 $0.00 Strike: $1.69 $0.00
Disclosure

SEC source: 0001209191-22-032569 · doc4.xml · derivative · entry 1

Houghton Michael · CIK 0001873008 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires 2032-05-25

F1 · derivative.exercise_date: Grant of stock options. The stock options vest, assuming continuous service, upon the earlier of (1) May 25, 2023 and (2) the date of the Issuer's 2023 annual meeting of stockholders.

Read SEC document
July 19, 2021 Filed Jul 20, 2021 21:19 UTC ASSEMBLY BIOSCIENCES, INC. ASMB · Entity 5216 GrantStock Option (right to buy) · Derivative 30,000 $0.00 Strike: $3.50 $0.00
Disclosure

SEC source: 0001209191-21-047430 · doc4.xml · derivative · entry 1

Houghton Michael · CIK 0001873008 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 shares

Expires 2031-07-19

F1 · derivative.exercise_date: Grant of stock options. The stock options vest in three equal installments, assuming continuous service on each vesting date, as follows: July 19, 2022; July 19, 2023; and July 19, 2024.

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