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Henn Matthew R

Disclosed activity across 1 company

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22046
SEC CIK
0001767321

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Seres Therapeutics, Inc.MCRB · Entity 7191See RemarksAugust 15, 2026August 18, 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.

Seres Therapeutics, Inc.

Report date August 15, 2026 · Filed August 18, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect7,995 Ending reported balance After 2026-08-17 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2026-08-15 · Exercise / conversion · Acquired 238 · Balance 8,076

F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Row 2 · 2026-08-17 · Sale · Disposed 81 · Balance 7,995

F2: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect282 Reported balance After 2026-08-15 transaction · row 3 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 3 · 2026-08-15 · Exercise / conversion · Disposed 140 · Balance 282

F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect585 Reported balance After 2026-08-15 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2026-08-15 · Exercise / conversion · Disposed 98 · Balance 585

F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Filing footnotes · ownership attribution and instrument terms

F1: Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

F3: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration 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
August 17, 2026 Filed Aug 18, 2026 21:25 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 81 $4.55 $368.55
Disclosure

SEC source: 0001193125-26-355718 · ownership.xml · nonDerivative · entry 2

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,995

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

Read SEC document
August 15, 2026 Filed Aug 18, 2026 21:25 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 98 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-355718 · ownership.xml · derivative · entry 4

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 585

Underlying: Common Stock · 98 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
August 15, 2026 Filed Aug 18, 2026 21:25 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 140 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-355718 · ownership.xml · derivative · entry 3

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 282

Underlying: Common Stock · 140 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
August 15, 2026 Filed Aug 18, 2026 21:25 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 238 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-355718 · ownership.xml · nonDerivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,076

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
July 08, 2026 Filed Jul 10, 2026 20:15 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (right to buy) · Derivative 25,000 $0.00 Strike: $9.13 $0.00
Disclosure

SEC source: 0001193125-26-300923 · ownership.xml · derivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2036-03-03

F1 · derivative.exercise_date: The option will vest as to 25% of the shares on March 2, 2027. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
May 18, 2026 Filed May 19, 2026 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 77 $7.53 $579.81
Disclosure

SEC source: 0001193125-26-230727 · ownership.xml · nonDerivative · entry 2

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,838

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

Read SEC document
May 15, 2026 Filed May 19, 2026 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 97 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-230727 · ownership.xml · derivative · entry 4

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 683

Underlying: Common Stock · 97 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
May 15, 2026 Filed May 19, 2026 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 141 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-230727 · ownership.xml · derivative · entry 3

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 422

Underlying: Common Stock · 141 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
May 15, 2026 Filed May 19, 2026 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 238 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-230727 · ownership.xml · nonDerivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,915

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
March 04, 2026 Filed Mar 6, 2026 21:35 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (right to buy) · Derivative 75,000 $0.00 Strike: $9.13 $0.00
Disclosure

SEC source: 0001193125-26-096700 · ownership.xml · derivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,000

Underlying: Common Stock · 75,000 shares

Expires 2036-03-03

F1 · derivative.exercise_date: The option will vest as to 25% of the shares on March 2, 2027. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
February 15, 2026 Filed Feb 18, 2026 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 98 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-057153 · ownership.xml · derivative · entry 4

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 780

Underlying: Common Stock · 98 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
February 15, 2026 Filed Feb 18, 2026 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 141 $0.00 $0.00
Disclosure

SEC source: 0001193125-26-057153 · ownership.xml · derivative · entry 3

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 563

Underlying: Common Stock · 141 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
February 15, 2026 Filed Feb 18, 2026 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 89 $8.47 $753.83
Disclosure

SEC source: 0001193125-26-057153 · ownership.xml · nonDerivative · entry 2

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,677

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

Read SEC document
February 15, 2026 Filed Feb 18, 2026 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 239 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-057153 · ownership.xml · nonDerivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,766

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
November 15, 2025 Filed Nov 18, 2025 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 98 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-286226 · ownership.xml · derivative · entry 7

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 878

Underlying: Common Stock · 98 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 restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

F5 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F5 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
November 15, 2025 Filed Nov 18, 2025 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 140 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-286226 · ownership.xml · derivative · entry 6

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 704

Underlying: Common Stock · 140 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 restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
November 15, 2025 Filed Nov 18, 2025 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 3,998 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-286226 · ownership.xml · derivative · entry 5

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,998 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 restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The RSUs vested in a single installment on November 15, 2025. The RSUs have no expiration date.

F3 · derivative.expiration_date: The RSUs vested in a single installment on November 15, 2025. The RSUs have no expiration date.

Read SEC document
November 15, 2025 Filed Nov 18, 2025 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 1,257 $17.30 $21,746.10
Disclosure

SEC source: 0001193125-25-286226 · ownership.xml · nonDerivative · entry 4

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 7,527

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

Read SEC document
November 15, 2025 Filed Nov 18, 2025 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 98 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-286226 · ownership.xml · nonDerivative · entry 3

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,784

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 restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

Read SEC document
November 15, 2025 Filed Nov 18, 2025 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 140 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-286226 · ownership.xml · nonDerivative · entry 2

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,686

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 restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

Read SEC document
November 15, 2025 Filed Nov 18, 2025 21:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 3,998 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-25-286226 · ownership.xml · nonDerivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,546

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 restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

Read SEC document
September 26, 2025 Filed Sep 30, 2025 20:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantRestricted Stock Units · Derivative 3,998 $0.00 $0.00
Disclosure

SEC source: 0001193125-25-225103 · ownership.xml · derivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,998

Underlying: Common Stock · 3,998 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock.

F2 · derivative.exercise_date: The RSUs will vest in a single installment on November 15, 2025, subject to the Reporting Person's satisfaction of the terms contemplated in the award agreement.The RSUs have no expiration date.

F2 · derivative.expiration_date: The RSUs will vest in a single installment on November 15, 2025, subject to the Reporting Person's satisfaction of the terms contemplated in the award agreement.The RSUs have no expiration date.

Read SEC document
August 18, 2025 Filed Aug 19, 2025 20:07 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 73 $16.65 $1,215.45
Disclosure

SEC source: 0000950170-25-110090 · ownership.xml · nonDerivative · entry 3

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,548

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:07 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 97 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-110090 · ownership.xml · derivative · entry 5

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 976

Underlying: Common Stock · 97 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:07 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 141 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-110090 · ownership.xml · derivative · entry 4

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 844

Underlying: Common Stock · 141 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F3 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F3 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:07 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 97 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-25-110090 · ownership.xml · nonDerivative · entry 2

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,621

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
August 15, 2025 Filed Aug 19, 2025 20:07 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 141 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-25-110090 · ownership.xml · nonDerivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,524

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
May 16, 2025 Filed May 19, 2025 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 77 $7.28 $560.56
Disclosure

SEC source: 0000950170-25-074323 · ownership.xml · nonDerivative · entry 3

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,383

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

F2 · balance_after: Reflects a 1-for-20 reverse stock split effected on April 21, 2025.

Read SEC document
May 15, 2025 Filed May 19, 2025 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 98 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-074323 · ownership.xml · derivative · entry 5

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,073

Underlying: Common Stock · 98 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F5 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F5 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F2 · balance_after: Reflects a 1-for-20 reverse stock split effected on April 21, 2025.

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May 15, 2025 Filed May 19, 2025 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 140 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-074323 · ownership.xml · derivative · entry 4

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 985

Underlying: Common Stock · 140 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F2 · balance_after: Reflects a 1-for-20 reverse stock split effected on April 21, 2025.

Read SEC document
May 15, 2025 Filed May 19, 2025 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 98 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-25-074323 · ownership.xml · nonDerivative · entry 2

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,460

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2 · balance_after: Reflects a 1-for-20 reverse stock split effected on April 21, 2025.

Read SEC document
May 15, 2025 Filed May 19, 2025 20:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 140 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-25-074323 · ownership.xml · nonDerivative · entry 1

Henn Matthew R · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,362

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F2 · balance_after: Reflects a 1-for-20 reverse stock split effected on April 21, 2025.

Read SEC document
February 18, 2025 Filed Feb 20, 2025 01:10 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 3,953 $0.81 $3,203.51
Disclosure

SEC source: 0000950170-25-023580 · ownership.xml · nonDerivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 84,443

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

F3 · price: The price reported in column 4 is a weighted average of the sale prices. These shares were sold in multiple transactions at prices ranging from $0.81 to $0.8349, inclusive. The reporting person undertakes to provide to 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 sold at each separate price within the range set forth in this footnote.

Read SEC document
February 15, 2025 Filed Feb 20, 2025 01:10 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 7,813 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-023580 · ownership.xml · derivative · entry 5

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 23,437

Underlying: Common Stock · 7,813 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F5 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F5 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
February 15, 2025 Filed Feb 20, 2025 01:10 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 2,813 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-023580 · ownership.xml · derivative · entry 4

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 22,500

Underlying: Common Stock · 2,813 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
February 15, 2025 Filed Feb 20, 2025 01:10 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 7,813 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-25-023580 · ownership.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 88,396

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
February 15, 2025 Filed Feb 20, 2025 01:10 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 2,813 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-25-023580 · ownership.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 80,583

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
February 07, 2025 Filed Feb 11, 2025 21:15 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 650,000 $0.00 Strike: $0.78 $0.00
Disclosure

SEC source: 0000950170-25-017914 · ownership.xml · derivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 650,000

Underlying: Common Stock · 650,000 shares

Expires 2035-02-06

F1 · derivative.exercise_date: The option will vest as to 25% of the shares on February 7, 2026. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
November 18, 2024 Filed Nov 19, 2024 21:15 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 927 $0.54 $501.23
Disclosure

SEC source: 0000950170-24-128611 · ownership.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 77,770

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

F3 · price: The price reported in column 4 is a weighted average of the sale prices. These shares were sold in multiple transactions at prices ranging from $0.5406 to $0.5449, inclusive. The reporting person undertakes to provide to 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 sold at each separate price within the range set forth in this footnote.

Read SEC document
November 15, 2024 Filed Nov 19, 2024 21:15 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 2,812 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-128611 · ownership.xml · derivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,313

Underlying: Common Stock · 2,812 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
November 15, 2024 Filed Nov 19, 2024 21:15 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 2,812 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-128611 · ownership.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 78,697

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
October 28, 2024 Filed Oct 29, 2024 22:27 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 3,984 $0.69 $2,749.36
Disclosure

SEC source: 0000950170-24-118418 · ownership.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 75,885

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

F4 · price: The price reported in column 4 is a weighted average of the sale prices. These shares were sold in multiple transactions at prices ranging from $0.69 to $ 0.69605, inclusive. The reporting person undertakes to provide to 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 sold at each separate price within the range set forth in this footnote.

Read SEC document
October 27, 2024 Filed Oct 29, 2024 22:27 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 12,622 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-118418 · ownership.xml · derivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,622 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.

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs do not have an expiration date.

F1 · derivative.exercise_date: On February 3, 2023, the reporting person was granted an award of 25,245 restricted stock units ("RSUs"), which vest in the form of shares of the Issuer's common stock in two substantially equal installments upon the satisfaction of certain performance criteria. On April 27, 2023 (the "Initial Milestone Date"), the Issuer's Administrator determined that the performance criteria for the first installment were met, resulting in the vesting and settlement of the award as to 12,623 RSUs on October 27, 2023, the date that was six months from the Initial Milestone Date. The remaining 12,622 RSUs vested and settled on October 27, 2024, the date that was eighteen months from the Initial Milestone Date.

F2 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs do not have an expiration date.

Read SEC document
October 27, 2024 Filed Oct 29, 2024 22:27 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 12,622 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-118418 · ownership.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 79,869

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 · kind: On February 3, 2023, the reporting person was granted an award of 25,245 restricted stock units ("RSUs"), which vest in the form of shares of the Issuer's common stock in two substantially equal installments upon the satisfaction of certain performance criteria. On April 27, 2023 (the "Initial Milestone Date"), the Issuer's Administrator determined that the performance criteria for the first installment were met, resulting in the vesting and settlement of the award as to 12,623 RSUs on October 27, 2023, the date that was six months from the Initial Milestone Date. The remaining 12,622 RSUs vested and settled on October 27, 2024, the date that was eighteen months from the Initial Milestone Date.

F2 · price: Each RSU represents a contingent right to receive one share of Issuer common stock. The RSUs do not have an expiration date.

Read SEC document
August 16, 2024 Filed Aug 19, 2024 21:42 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 923 $0.84 $775.32
Disclosure

SEC source: 0000950170-24-098715 · ownership.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,247

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

F3 · price: The price reported in column 4 is a weighted average of the sale prices. These shares were sold in multiple transactions at prices ranging from $0.8414 to $0.8900, inclusive. The reporting person undertakes to provide to 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 sold at each separate price within the range set forth in this footnote.

Read SEC document
August 15, 2024 Filed Aug 19, 2024 21:42 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 2,813 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-098715 · ownership.xml · derivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,125

Underlying: Common Stock · 2,813 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
August 15, 2024 Filed Aug 19, 2024 21:42 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 2,813 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-098715 · ownership.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 68,170

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

Read SEC document
May 15, 2024 Filed May 18, 2024 00:17 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 2,812 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-062057 · ownership.xml · derivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,938

Underlying: Common Stock · 2,812 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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

F4 · derivative.exercise_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F4 · derivative.expiration_date: The restricted stock units vested and settled as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units have vested and settled or will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
May 15, 2024 Filed May 18, 2024 00:17 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 891 $0.94 $837.54
Disclosure

SEC source: 0000950170-24-062057 · ownership.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 65,357

F2 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 instruction adopted by the reporting person on April 13, 2023, solely with the intent to cover taxes in connection with the vesting of the restricted stock units.

F3 · price: The price reported in column 4 is a weighted average of the sale prices. These shares were sold in multiple transactions at prices ranging from $0.9206 to $0.94, inclusive. The reporting person undertakes to provide to 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 sold at each separate price within the range set forth in this footnote.

Read SEC document
May 15, 2024 Filed May 18, 2024 00:17 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 2,812 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-062057 · ownership.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 66,248

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 restricted stock unit represents a contingent right to receive one share of Issuer common stock.

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.