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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
February 16, 2024 Filed Feb 17, 2024 02:31 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 4,170 $1.08 $4,503.60
Disclosure

SEC source: 0000950170-24-016695 · ownership.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 63,436

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 price. These shares were sold in multiple transactions at prices ranging from $1.08 to $1.115, 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, 2024 Filed Feb 17, 2024 02:31 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 11,250 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-016695 · ownership.xml · derivative · entry 6

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,750

Underlying: Common Stock · 11,250 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.

F7 · 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 will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F7 · 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 will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
February 15, 2024 Filed Feb 17, 2024 02:31 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 11,250 Not disclosed Not disclosed
Disclosure

SEC source: 0000950170-24-016695 · ownership.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 67,606

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 14, 2024 Filed Feb 17, 2024 02:31 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantRestricted Stock Units · Derivative 31,250 $0.00 $0.00
Disclosure

SEC source: 0000950170-24-016695 · ownership.xml · derivative · entry 5

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,250

Underlying: Common Stock · 31,250 shares

Expires not disclosed

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

F6 · derivative.exercise_date: The restricted stock units will vest and settle as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

F6 · derivative.expiration_date: The restricted stock units will vest and settle as to 25% of the restricted stock units on February 15, 2025. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter. The restricted stock units have no expiration date.

Read SEC document
February 14, 2024 Filed Feb 17, 2024 02:31 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 287,905 $0.00 Strike: $1.10 $0.00
Disclosure

SEC source: 0000950170-24-016695 · ownership.xml · derivative · entry 4

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 287,905

Underlying: Common Stock · 287,905 shares

Expires 2034-02-13

F5 · derivative.exercise_date: The option will vest, if at all, in two substantially equal installments upon achievement of a 30-day trailing average public market closing price per share of the Issuer's common stock greater than or equal to $3.00 and $5.00, respectively.

Read SEC document
February 14, 2024 Filed Feb 17, 2024 02:31 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 187,500 $0.00 Strike: $1.10 $0.00
Disclosure

SEC source: 0000950170-24-016695 · ownership.xml · derivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 187,500

Underlying: Common Stock · 187,500 shares

Expires 2034-02-13

F4 · derivative.exercise_date: The option will vest as to 25% of the shares on February 14, 2025. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
October 30, 2023 Filed Nov 1, 2023 01:36 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 3,886 $1.35 $5,246.10
Disclosure

SEC source: 0000899243-23-020069 · doc4.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 56,356

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 RSUs.

F3 · price: The price reported in column 4 is a weighted average of the price. These shares were sold in multiple transactions at prices ranging from $1.35 to $1.385, 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, 2023 Filed Nov 1, 2023 01:36 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRestricted Stock Units · Derivative 12,623 $0.00 $0.00
Disclosure

SEC source: 0000899243-23-020069 · doc4.xml · derivative · entry 4

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 12,622

Underlying: Common Stock · 12,623 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.

F4 · 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 · shares: 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 shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone 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 shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date.

F4 · 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, 2023 Filed Nov 1, 2023 01:36 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 12,623 $0.00 $0.00
Disclosure

SEC source: 0000899243-23-020069 · doc4.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 60,242

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 shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date.

Read SEC document
April 27, 2023 Filed May 1, 2023 20:41 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 35,000 $0.00 Strike: $10.84 $0.00
Disclosure

SEC source: 0000899243-23-011942 · doc4.xml · derivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,000

Underlying: Common Stock · 35,000 shares

Expires 2027-06-18

F1 · balance_after: On June 19, 2017, the Reporting Person was granted an option to purchase 70,000 shares of the Issuer's common stock. The option vested and became exercisable in two equal installments upon the satisfaction of certain performance criteria. On April 27, 2023, the Issuer's Board of Directors determined that the performance criteria for the second installment were met, resulting in vesting of the option as to 35,000 shares.

Read SEC document
April 27, 2023 Filed Nov 1, 2023 01:36 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantRestricted Stock Units · Derivative 25,245 $0.00 $0.00
Disclosure

SEC source: 0000899243-23-020069 · doc4.xml · derivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,245

Underlying: Common Stock · 25,245 shares

Expires not disclosed

F4 · 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 · shares: 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 shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone 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 shall vest on October 27, 2024, the date that is eighteen months from the Initial Milestone Date.

F4 · 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
February 03, 2023 Filed Feb 7, 2023 22:46 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 90,000 $0.00 Strike: $5.50 $0.00
Disclosure

SEC source: 0000899243-23-004208 · doc4.xml · derivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 90,000

Underlying: Common Stock · 90,000 shares

Expires 2033-02-02

F3 · derivative.exercise_date: The option will vest as to 25% of the shares on February 3, 2024. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
February 03, 2023 Filed Feb 7, 2023 22:46 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantRestricted Stock Units · Derivative 45,000 $0.00 $0.00
Disclosure

SEC source: 0000899243-23-004208 · doc4.xml · derivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,000

Underlying: Common Stock · 45,000 shares

Expires not disclosed

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

F2 · derivative.exercise_date: The restricted stock units will vest and settle as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter.

F2 · derivative.expiration_date: The restricted stock units will vest and settle as to 25% of the restricted stock units on February 15, 2024. The remainder of the restricted stock units will vest and settle in 12 equal quarterly installments thereafter.

Read SEC document
September 08, 2022 Filed Sep 9, 2022 20:46 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 35,000 $0.00 Strike: $10.84 $0.00
Disclosure

SEC source: 0000899243-22-030735 · doc4.xml · derivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,000

Underlying: Common Stock · 35,000 shares

Expires 2027-07-18

F1 · balance_after: On June 19, 2017, the Reporting Person was granted an option to purchase 70,000 shares of the Issuer's common stock. Subject to the Reporting Person's continued service to the Issuer through each applicable vesting date, the option vests and becomes exercisable in two equal installments upon the satisfaction of certain performance criteria. On September 8, 2022, the Issuer's Board of Directors determined that the performance criteria for the first installment were met, resulting in vesting of the option as to 35,000 shares.

Read SEC document
July 05, 2022 Filed Jul 6, 2022 23:27 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantCOMMON STOCK 47,619 $3.15 $149,999.85
Disclosure

SEC source: 0000899243-22-025520 · doc4.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,619

Read SEC document
February 04, 2022 Filed Feb 9, 2022 02:30 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 175,000 $0.00 Strike: $7.38 $0.00
Disclosure

SEC source: 0000899243-22-005313 · doc4.xml · derivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Common Stock · 175,000 shares

Expires 2032-02-03

F1 · derivative.exercise_date: The option will vest as to 25% of the shares on February 4, 2023. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
February 04, 2021 Filed Feb 8, 2021 23:47 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantStock Option (Right to Buy) · Derivative 130,000 $0.00 Strike: $26.34 $0.00
Disclosure

SEC source: 0000899243-21-005242 · doc4.xml · derivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 130,000

Underlying: Common Stock · 130,000 shares

Expires 2031-02-03

F1 · derivative.exercise_date: The option will vest as to 25% of the shares on February 4, 2022. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionStock Option (Right to Buy) · Derivative 27,562 $0.00 Strike: $6.01 $0.00
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · derivative · entry 9

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,938

Underlying: Common Stock · 27,562 shares

Expires 2029-01-24

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.

F6 · derivative.exercise_date: The option has vested as to 25% of the shares on January 25, 2020. The remainder of the shares will vest or have vested in 12 equal quarterly installments thereafter.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionStock Option (Right to Buy) · Derivative 26,250 $0.00 Strike: $9.89 $0.00
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · derivative · entry 8

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,750

Underlying: Common Stock · 26,250 shares

Expires 2024-08-06

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.

F5 · derivative.exercise_date: The option has vested as to 25% of the shares on January 26, 2018. The remainder of the shares will vest or have vested in 12 equal quarterly installments thereafter.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionStock Option (Right to Buy) · Derivative 26,000 $0.00 Strike: $0.71 $0.00
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · derivative · entry 7

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 26,000 shares

Expires 2024-08-06

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.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 9,841 $28.34 $278,893.94
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · nonDerivative · entry 6

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2020.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $28.145 to $28.53, 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
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 26,265 $27.56 $723,863.40
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · nonDerivative · entry 5

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,841

F1 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2020.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $27.10 to $28.08, 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
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 SaleCommon Stock 55,706 $26.56 $1,479,551.36
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · nonDerivative · entry 4

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,106

F1 · kind: The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 15, 2020.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $26.07 to $27.03, 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
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 27,562 $6.01 $165,647.62
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · nonDerivative · entry 3

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,812

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.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 26,250 $9.89 $259,612.50
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · nonDerivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,250

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.

Read SEC document
December 01, 2020 Filed Dec 3, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCommon Stock 26,000 $0.71 $18,460.00
Disclosure

SEC source: 0000899243-20-032667 · doc4.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,000

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.

Read SEC document
January 29, 2020 Filed Jan 31, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 GrantSTOCK OPTION (RIGHT TO BUY) · Derivative 300,000 $0.00 Strike: $3.30 $0.00
Disclosure

SEC source: 0000899243-20-002419 · doc4.xml · derivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,000

Underlying: Common Stock · 300,000 shares

Expires 2030-01-28

F1 · derivative.exercise_date: The option will vest as to 25% of the shares on January 29, 2021. The remainder of the shares will vest in 12 equal quarterly installments thereafter.

Read SEC document
January 26, 2020 Filed Jan 28, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionRESTRICTED STOCK UNITS · Derivative 7,500 $0.00 $0.00
Disclosure

SEC source: 0000899243-20-002211 · doc4.xml · derivative · entry 2

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,500 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.

F2 · derivative.exercise_date: The restricted stock units are fully vested and do not have an expiration date.

F2 · derivative.expiration_date: The restricted stock units are fully vested and do not have an expiration date.

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January 26, 2020 Filed Jan 28, 2020 21:05 UTC Seres Therapeutics, Inc. MCRB · Entity 7191 Exercise / conversionCOMMON STOCK 7,500 Not disclosed Not disclosed
Disclosure

SEC source: 0000899243-20-002211 · doc4.xml · nonDerivative · entry 1

Henn Matthew R. · CIK 0001767321 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,000

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.

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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.