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Monte Rosa Therapeutics, Inc.

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Tapewire entity
4828
SEC CIK
0001826457
Parsed reports
171

Last 12 months

Inside the activity.

0 purchase rows · 37 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202500
Dec 202500
Jan 202609
Feb 202602
Mar 202603
Apr 202602
May 202605
Jun 2026011
Jul 202604
Aug 202600
Sep 202600
Oct 202601

Latest available

Insider transactions

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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 dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
May 29, 2026 Filed Jun 1, 2026 20:05 UTC
Townson SharonChief Scientific Officer
Exercise / conversionCommon Stock 6,000 $6.14 $36,840.00
Disclosure

SEC source: 0001193125-26-251395 · ownership.xml · nonDerivative · entry 1

Townson Sharon · CIK 0001855689 · Chief Scientific Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 73,845

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: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 27, 2026.

Read SEC document
May 27, 2026 Filed May 28, 2026 23:10 UTC
Champoux JenniferChief Operating Officer
Exercise / conversionStock Option (Right to Buy) · Derivative 2,175 $0.00 Strike: $3.98 $0.00
Disclosure

SEC source: 0001193125-26-245728 · ownership.xml · derivative · entry 3

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,649

Underlying: Common Stock · 2,175 shares

Expires 2034-06-03

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: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 19, 2026.

F2 · derivative.exercise_date: 25% of this option vested on May 28, 2025, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
May 27, 2026 Filed May 28, 2026 23:10 UTC
Champoux JenniferChief Operating Officer
SaleCommon Stock 2,175 $20.00 $43,500.00
Disclosure

SEC source: 0001193125-26-245728 · ownership.xml · nonDerivative · entry 2

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,371

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 19, 2026.

Read SEC document
May 27, 2026 Filed May 28, 2026 23:10 UTC
Champoux JenniferChief Operating Officer
Exercise / conversionCommon Stock 2,175 $3.98 $8,656.50
Disclosure

SEC source: 0001193125-26-245728 · ownership.xml · nonDerivative · entry 1

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,546

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 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 19, 2026.

Read SEC document
May 22, 2026 Filed May 26, 2026 20:05 UTC
Champoux JenniferChief Operating Officer
Exercise / conversionStock Option (Right to Buy) · Derivative 2,176 $0.00 Strike: $3.98 $0.00
Disclosure

SEC source: 0001193125-26-239240 · ownership.xml · derivative · entry 3

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,824

Underlying: Common Stock · 2,176 shares

Expires 2034-06-03

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: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 19, 2026.

F2 · derivative.exercise_date: 25% of this option vested on May 28, 2025, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
May 22, 2026 Filed May 26, 2026 20:05 UTC
Champoux JenniferChief Operating Officer
SaleCommon Stock 2,176 $19.00 $41,344.00
Disclosure

SEC source: 0001193125-26-239240 · ownership.xml · nonDerivative · entry 2

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 62,371

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 19, 2026.

Read SEC document
May 22, 2026 Filed May 26, 2026 20:05 UTC
Champoux JenniferChief Operating Officer
Exercise / conversionCommon Stock 2,176 $3.98 $8,660.48
Disclosure

SEC source: 0001193125-26-239240 · ownership.xml · nonDerivative · entry 1

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 64,547

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: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 19, 2026.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:05 UTC Exercise / conversionStock Option (Right to Buy) · Derivative 10,000 $0.00 Strike: $4.16 $0.00
Disclosure

SEC source: 0001193125-26-236840 · ownership.xml · derivative · entry 3

Manning Anthony M. · CIK 0001716468 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,100

Underlying: Common Stock · 10,000 shares

Expires 2034-06-12

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_date: The shares subject to this option are fully vested and exercisable.

Read SEC document
May 21, 2026 Filed May 22, 2026 20:05 UTC SaleCommon Stock 10,000 $18.01 $180,100.00
Disclosure

SEC source: 0001193125-26-236840 · ownership.xml · nonDerivative · entry 2

Manning Anthony M. · CIK 0001716468 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Read SEC document
May 21, 2026 Filed May 22, 2026 20:05 UTC Exercise / conversionCommon Stock 10,000 $4.16 $41,600.00
Disclosure

SEC source: 0001193125-26-236840 · ownership.xml · nonDerivative · entry 1

Manning Anthony M. · CIK 0001716468 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,000

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
May 01, 2026 Filed May 5, 2026 20:05 UTC
Warmuth MarkusDirector · President & CEO
SaleCommon Stock 5,467 $18.92 $103,446.57
Disclosure

SEC source: 0001193125-26-206344 · ownership.xml · nonDerivative · entry 1

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 600,004

F1 · kind: These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on May 14, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.67 to $19.38, 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.

Read SEC document
April 14, 2026 Filed Apr 15, 2026 20:05 UTC
Warmuth MarkusDirector · President & CEO
SaleCommon Stock 8,000 $17.64 $141,124.80
Disclosure

SEC source: 0001193125-26-156981 · ownership.xml · nonDerivative · entry 1

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 605,471

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.64 to $17.65, 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.

Read SEC document
April 09, 2026 Filed Apr 10, 2026 20:07 UTC
Nickson PhilipChief Business & Legal Officer
SaleCommon Stock 5,845 $17.69 $103,412.66
Disclosure

SEC source: 0001193125-26-151254 · ownership.xml · nonDerivative · entry 1

Nickson Philip · CIK 0001911369 · Chief Business & Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,000

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.6901 to $17.71, 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.

Read SEC document
April 06, 2026 Filed Apr 7, 2026 20:10 UTC
Bowen MatthewPrincipal Accounting Officer
GrantStock Option (Right to Buy) · Derivative 19,500 $0.00 Strike: $16.93 $0.00
Disclosure

SEC source: 0001193125-26-145545 · ownership.xml · derivative · entry 2

Bowen Matthew · CIK 0002115025 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,500

Underlying: Common Stock · 19,500 shares

Expires 2036-04-05

F2 · derivative.exercise_date: 25% of this option shall vest and become exercisable on April 6, 2027, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
April 06, 2026 Filed Apr 7, 2026 20:10 UTC
Bowen MatthewPrincipal Accounting Officer
GrantCommon Stock 4,300 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-145545 · ownership.xml · nonDerivative · entry 1

Bowen Matthew · CIK 0002115025 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,904

F1 · price: Represents restricted stock units ("RSUs") granted under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting and settlement. 25% of the RSUs shall vest on April 6, 2027, with the remainder vesting in 3 equal annual installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
March 04, 2026 Filed Mar 5, 2026 22:24 UTC
Dunn EdmundPrincipal Accounting Officer
SaleCommon Stock 139 $17.96 $2,496.44
Disclosure

SEC source: 0001193125-26-094296 · ownership.xml · nonDerivative · entry 1

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,554

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

Read SEC document
March 02, 2026 Filed Mar 2, 2026 22:02 UTC
Dunn EdmundPrincipal Accounting Officer
Exercise / conversionStock Option (Right to Buy) · Derivative 536 $0.00 Strike: $13.41 $0.00
Disclosure

SEC source: 0001193125-26-085677 · ownership.xml · derivative · entry 6

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 536 shares

Expires 2032-02-29

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_date: This option is fully vested and exercisable.

Read SEC document
March 02, 2026 Filed Mar 2, 2026 22:02 UTC
Dunn EdmundPrincipal Accounting Officer
SaleCommon Stock 536 $17.50 $9,380.00
Disclosure

SEC source: 0001193125-26-085677 · ownership.xml · nonDerivative · entry 4

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,693

Read SEC document
March 02, 2026 Filed Mar 2, 2026 22:02 UTC
Dunn EdmundPrincipal Accounting Officer
Exercise / conversionCommon Stock 536 $13.41 $7,187.76
Disclosure

SEC source: 0001193125-26-085677 · ownership.xml · nonDerivative · entry 3

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,229

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
March 02, 2026 Filed Mar 4, 2026 21:50 UTC
Warmuth MarkusDirector · President & CEO
SaleCommon Stock 5,466 $17.92 $97,974.22
Disclosure

SEC source: 0001193125-26-091733 · ownership.xml · nonDerivative · entry 1

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 613,471

F1 · kind: These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on May 14, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $17.50 to $18.46, 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.

Read SEC document
February 27, 2026 Filed Mar 2, 2026 22:02 UTC
Dunn EdmundPrincipal Accounting Officer
Exercise / conversionStock Option (Right to Buy) · Derivative 25,164 $0.00 Strike: $13.41 $0.00
Disclosure

SEC source: 0001193125-26-085677 · ownership.xml · derivative · entry 5

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 536

Underlying: Common Stock · 25,164 shares

Expires 2032-02-29

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_date: This option is fully vested and exercisable.

Read SEC document
February 27, 2026 Filed Mar 2, 2026 22:02 UTC
Dunn EdmundPrincipal Accounting Officer
SaleCommon Stock 25,164 $18.10 $455,506.15
Disclosure

SEC source: 0001193125-26-085677 · ownership.xml · nonDerivative · entry 2

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,693

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.06 to $18.22, 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.

Read SEC document
February 27, 2026 Filed Mar 2, 2026 22:02 UTC
Dunn EdmundPrincipal Accounting Officer
Exercise / conversionCommon Stock 25,164 $13.41 $337,449.24
Disclosure

SEC source: 0001193125-26-085677 · ownership.xml · nonDerivative · entry 1

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,857

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
February 23, 2026 Filed Feb 24, 2026 21:05 UTC
Janku FilipChief Medical Officer
SaleCommon Stock 9,189 $19.50 $179,160.69
Disclosure

SEC source: 0001193125-26-066955 · ownership.xml · nonDerivative · entry 1

Janku Filip · CIK 0001862930 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,837

Read SEC document
January 07, 2026 Filed Jan 9, 2026 21:05 UTC
Warmuth MarkusDirector · President & CEO
SaleCommon Stock 309 $24.57 $7,593.24
Disclosure

SEC source: 0001193125-26-008902 · ownership.xml · nonDerivative · entry 3

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 618,937

F1 · kind: These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on May 14, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.43 to $24.65, 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.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 21:05 UTC
Warmuth MarkusDirector · President & CEO
SaleCommon Stock 1,450 $23.88 $34,620.49
Disclosure

SEC source: 0001193125-26-008902 · ownership.xml · nonDerivative · entry 2

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 619,246

F1 · kind: These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on May 14, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $23.43 to $24.41, 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.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 21:05 UTC
Warmuth MarkusDirector · President & CEO
SaleCommon Stock 3,707 $23.24 $86,158.84
Disclosure

SEC source: 0001193125-26-008902 · ownership.xml · nonDerivative · entry 1

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 620,696

F1 · kind: These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted on May 14, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.42 to $23.40, 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.

Read SEC document
January 05, 2026 Filed Jan 5, 2026 21:05 UTC
Champoux JenniferChief Operating Officer
SaleCommon Stock 2,629 $15.17 $39,881.93
Disclosure

SEC source: 0001193125-26-002401 · ownership.xml · nonDerivative · entry 2

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,371

F2 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.17 to $15.43, 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.

Read SEC document
January 05, 2026 Filed Jan 5, 2026 21:04 UTC
Dunn EdmundPrincipal Accounting Officer
SaleCommon Stock 1,039 $15.17 $15,761.63
Disclosure

SEC source: 0001193125-26-002390 · ownership.xml · nonDerivative · entry 1

Dunn Edmund · CIK 0001989401 · Principal Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,693

F1 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.17 to $15.43, 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.

Read SEC document
January 05, 2026 Filed Jan 5, 2026 21:04 UTC
Janku FilipChief Medical Officer
SaleCommon Stock 3,155 $15.17 $47,861.35
Disclosure

SEC source: 0001193125-26-002386 · ownership.xml · nonDerivative · entry 2

Janku Filip · CIK 0001862930 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,026

F3 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.17 to $15.43, 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.

Read SEC document
January 05, 2026 Filed Jan 5, 2026 21:04 UTC
Warmuth MarkusDirector · President & CEO
SaleCommon Stock 10,135 $15.17 $153,747.95
Disclosure

SEC source: 0001193125-26-002389 · ownership.xml · nonDerivative · entry 2

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 624,403

F2 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.17 to $15.43, 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.

Read SEC document
January 05, 2026 Filed Jan 5, 2026 21:04 UTC
Townson SharonChief Scientific Officer
SaleCommon Stock 3,155 $15.17 $47,861.35
Disclosure

SEC source: 0001193125-26-002385 · ownership.xml · nonDerivative · entry 2

Townson Sharon · CIK 0001855689 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,845

F2 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.17 to $15.43, 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.

Read SEC document
January 05, 2026 Filed Jan 5, 2026 21:06 UTC
Nickson PhilipChief Business & Legal Officer
SaleCommon Stock 3,155 $15.17 $47,861.35
Disclosure

SEC source: 0001193125-26-002406 · ownership.xml · nonDerivative · entry 2

Nickson Philip · CIK 0001911369 · Chief Business & Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,845

F2 · kind: Represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. These sales were automatic and not in the discretion of the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.17 to $15.43, 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.

Read SEC document
January 02, 2026 Filed Jan 5, 2026 21:05 UTC
Champoux JenniferChief Operating Officer
GrantStock Option (Right to Buy) · Derivative 158,000 $0.00 Strike: $15.31 $0.00
Disclosure

SEC source: 0001193125-26-002401 · ownership.xml · derivative · entry 3

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,000

Underlying: Common Stock · 158,000 shares

Expires 2036-01-01

F4 · derivative.exercise_date: 25% of this option shall vest and become exercisable on January 2, 2027, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
January 02, 2026 Filed Jan 5, 2026 21:05 UTC
Champoux JenniferChief Operating Officer
GrantCommon Stock 35,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-002401 · ownership.xml · nonDerivative · entry 1

Champoux Jennifer · CIK 0002025233 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,000

F1 · price: Represents restricted stock units ("RSUs") granted under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting and settlement. 25% of the RSUs shall vest on January 2, 2027, with the remainder vesting in 3 equal annual installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
January 02, 2026 Filed Jan 5, 2026 21:04 UTC
Janku FilipChief Medical Officer
GrantStock Option (Right to Buy) · Derivative 139,000 $0.00 Strike: $15.31 $0.00
Disclosure

SEC source: 0001193125-26-002386 · ownership.xml · derivative · entry 3

Janku Filip · CIK 0001862930 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 139,000

Underlying: Common Stock · 139,000 shares

Expires 2036-01-01

F5 · derivative.exercise_date: 25% of this option shall vest and become exercisable on January 2, 2027, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
January 02, 2026 Filed Jan 5, 2026 21:04 UTC
Janku FilipChief Medical Officer
GrantCommon Stock 31,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-002386 · ownership.xml · nonDerivative · entry 1

Janku Filip · CIK 0001862930 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,181

F1 · price: Represents restricted stock units ("RSUs") granted under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting and settlement. 25% of the RSUs shall vest on January 2, 2027, with the remainder vesting in 3 equal annual installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

F2 · balance_after: Includes 1,992 shares acquired under the Issuer's 2021 Employee Stock Purchase Program on December 31, 2025.

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January 02, 2026 Filed Jan 5, 2026 21:04 UTC
Warmuth MarkusDirector · President & CEO
GrantStock Option (Right to Buy) · Derivative 406,000 $0.00 Strike: $15.31 $0.00
Disclosure

SEC source: 0001193125-26-002389 · ownership.xml · derivative · entry 3

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 406,000

Underlying: Common Stock · 406,000 shares

Expires 2036-01-01

F4 · derivative.exercise_date: 25% of this option shall vest and become exercisable on January 2, 2027, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

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January 02, 2026 Filed Jan 5, 2026 21:04 UTC
Warmuth MarkusDirector · President & CEO
GrantCommon Stock 90,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-002389 · ownership.xml · nonDerivative · entry 1

Warmuth Markus · CIK 0001855643 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 634,538

F1 · price: Represents restricted stock units ("RSUs") granted under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting and settlement. 25% of the RSUs shall vest on January 2, 2027, with the remainder vesting in 3 equal annual installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

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January 02, 2026 Filed Jan 5, 2026 21:04 UTC
Townson SharonChief Scientific Officer
GrantStock Option (Right to Buy) · Derivative 158,000 $0.00 Strike: $15.31 $0.00
Disclosure

SEC source: 0001193125-26-002385 · ownership.xml · derivative · entry 3

Townson Sharon · CIK 0001855689 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,000

Underlying: Common Stock · 158,000 shares

Expires 2036-01-01

F4 · derivative.exercise_date: 25% of this option shall vest and become exercisable on January 2, 2027, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

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January 02, 2026 Filed Jan 5, 2026 21:04 UTC
Townson SharonChief Scientific Officer
GrantCommon Stock 35,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-002385 · ownership.xml · nonDerivative · entry 1

Townson Sharon · CIK 0001855689 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,000

F1 · price: Represents restricted stock units ("RSUs") granted under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting and settlement. 25% of the RSUs shall vest on January 2, 2027, with the remainder vesting in 3 equal annual installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

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January 02, 2026 Filed Jan 5, 2026 21:06 UTC
Nickson PhilipChief Business & Legal Officer
GrantStock Option (Right to Buy) · Derivative 126,000 $0.00 Strike: $15.31 $0.00
Disclosure

SEC source: 0001193125-26-002406 · ownership.xml · derivative · entry 3

Nickson Philip · CIK 0001911369 · Chief Business & Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,000

Underlying: Common Stock · 126,000 shares

Expires 2036-01-01

F4 · derivative.exercise_date: 25% of this option shall vest and become exercisable on January 2, 2027, with the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

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January 02, 2026 Filed Jan 5, 2026 21:06 UTC
Nickson PhilipChief Business & Legal Officer
GrantCommon Stock 28,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001193125-26-002406 · ownership.xml · nonDerivative · entry 1

Nickson Philip · CIK 0001911369 · Chief Business & Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 64,000

F1 · price: Represents restricted stock units ("RSUs") granted under the Issuer's 2021 Stock Option and Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting and settlement. 25% of the RSUs shall vest on January 2, 2027, with the remainder vesting in 3 equal annual installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Read SEC document
June 13, 2025 Filed Jun 16, 2025 16:05 UTC GrantStock Option (Right to Buy) · Derivative 30,700 $0.00 Strike: $4.91 $0.00
Disclosure

SEC source: 0000950170-25-086699 · ownership.xml · derivative · entry 1

SCHIFF ANDREW N · CIK 0001172252 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,700

Underlying: Common Stock · 30,700 shares

Expires 2035-06-13

F1 · derivative.exercise_date: The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.

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June 13, 2025 Filed Jun 16, 2025 20:05 UTC GrantStock Option (Right to Buy) · Derivative 30,700 $0.00 Strike: $4.91 $0.00
Disclosure

SEC source: 0000950170-25-086704 · ownership.xml · derivative · entry 1

Hughes Eric A · CIK 0001938678 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,700

Underlying: Common Stock · 30,700 shares

Expires 2035-06-13

F1 · derivative.exercise_date: The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.

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June 13, 2025 Filed Jun 16, 2025 16:05 UTC GrantStock Option (Right to Buy) · Derivative 30,700 $0.00 Strike: $4.91 $0.00
Disclosure

SEC source: 0000950170-25-086702 · ownership.xml · derivative · entry 1

Blackwell Kimberly · CIK 0001816465 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,700

Underlying: Common Stock · 30,700 shares

Expires 2035-06-13

F1 · derivative.exercise_date: The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.

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June 13, 2025 Filed Jun 16, 2025 20:10 UTC
Behbahani AliDirector · 10% owner
GrantStock Option (Right to Buy) · Derivative 30,700 $0.00 Strike: $4.91 $0.00
Disclosure

SEC source: 0000950170-25-086727 · ownership.xml · derivative · entry 1

Behbahani Ali · CIK 0001613867 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,700

Underlying: Common Stock · 30,700 shares

Expires 2035-06-13

F1 · derivative.exercise_date: The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.

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June 13, 2025 Filed Jun 16, 2025 20:05 UTC GrantStock Option (Right to Buy) · Derivative 30,700 $0.00 Strike: $4.91 $0.00
Disclosure

SEC source: 0000950170-25-086703 · ownership.xml · derivative · entry 1

Manning Anthony M. · CIK 0001716468 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,700

Underlying: Common Stock · 30,700 shares

Expires 2035-06-13

F1 · derivative.exercise_date: The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.

Read SEC document
June 13, 2025 Filed Jun 16, 2025 16:05 UTC GrantStock Option (Right to Buy) · Derivative 30,700 $0.00 Strike: $4.91 $0.00
Disclosure

SEC source: 0000950170-25-086701 · ownership.xml · derivative · entry 1

Siu Christine · CIK 0001743029 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,700

Underlying: Common Stock · 30,700 shares

Expires 2035-06-13

F1 · derivative.exercise_date: The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.

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June 13, 2025 Filed Jun 16, 2025 20:05 UTC
Skvarka JanDirector
GrantStock Option (Right to Buy) · Derivative 30,700 $0.00 Strike: $4.91 $0.00
Disclosure

SEC source: 0000950170-25-086700 · ownership.xml · derivative · entry 1

Skvarka Jan · CIK 0001838042 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,700

Underlying: Common Stock · 30,700 shares

Expires 2035-06-13

F1 · derivative.exercise_date: The shares subject to this option shall vest and become exercisable in full upon the earlier to occur of (i) June 13, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service at such time.

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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.