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person · Reporting owner

Morrison Briggs

Disclosed activity across 9 companies

Tapewire entity
35090
SEC CIK
0001654430

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ARVINAS, INC.ARVN · Entity 5355DirectorJune 24, 2026June 26, 2026
CRISPR Therapeutics AGCRSP · Entity 3852DirectorJune 05, 2026June 09, 2026
Carisma Therapeutics Inc.CARM · Entity 74418DirectorJune 26, 2024June 27, 2024
Codiak BioSciences, Inc.CDAK · Entity 114958DirectorFebruary 17, 2021February 17, 2021
NextCure, Inc.NXTC · Entity 7461DirectorJune 11, 2020June 15, 2020
Oncorus, Inc.ONCR · Entity 112213DirectorOctober 01, 2020October 01, 2020
Repare Therapeutics Inc.RPTX · Entity 68433DirectorJune 17, 2024June 20, 2024
Syndax Pharmaceuticals IncSNDX · Entity 4578DirectorFebruary 07, 2024February 09, 2024
Werewolf Therapeutics, Inc.HOWL · Entity 7244DirectorJune 12, 2025June 13, 2025

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.

ARVINAS, INC.

Report date June 24, 2026 · Filed June 26, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect111,548 Reported balance After 2026-06-24 transaction · row 1
1 source row

Row 1 · 2026-06-24 · Grant · Acquired 15,527 · Balance 111,548

F1: The restricted stock units (each, an "RSU") were granted by the Issuer on June 24, 2026 and each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement for no consideration. The RSUs shall vest in full on the earlier of (i) June 24, 2027 or (ii) immediately prior to the first annual meeting of stockholders occurring after the date of grant, subject to the reporting person's continued service with the Issuer on the vesting date.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $8.05 · Expires 2036-06-23Direct22,714 Reported balance After 2026-06-24 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-06-24 · Grant · Acquired 22,714 · Balance 22,714

F2: This option award was granted on June 24, 2026. The shares underlying the award shall vest in full on the earlier of (i) June 24, 2027 or (ii) immediately prior to the first annual meeting of stockholders occurring after the date of grant, subject to the reporting person's continued service with the Issuer on the vesting date.

Filing footnotes · ownership attribution and instrument terms

F1: The restricted stock units (each, an "RSU") were granted by the Issuer on June 24, 2026 and each RSU represents a contingent right to receive one share of the Issuer's common stock upon settlement for no consideration. The RSUs shall vest in full on the earlier of (i) June 24, 2027 or (ii) immediately prior to the first annual meeting of stockholders occurring after the date of grant, subject to the reporting person's continued service with the Issuer on the vesting date.

F2: This option award was granted on June 24, 2026. The shares underlying the award shall vest in full on the earlier of (i) June 24, 2027 or (ii) immediately prior to the first annual meeting of stockholders occurring after the date of grant, subject to the reporting person's continued service with the Issuer on the vesting date.

CRISPR Therapeutics AG

Report date June 05, 2026 · Filed June 09, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $51.84 · Expires 2036-06-05Direct13,000 Reported balance After 2026-06-05 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-05 · Grant · Acquired 13,000 · Balance 13,000

F1: Subject to continued service to the Company or any of its subsidiaries, the options will vest and become exercisable in 12 equal monthly installments on the final day of each succeeding calendar month occurring after the grant date provided that the first installment vests on June 30, 2026 and the last installment vests on the earlier of (i) the one year anniversary of the date of grant or (ii) the date of the 2027 Annual Meeting.

Filing footnotes · ownership attribution and instrument terms

F1: Subject to continued service to the Company or any of its subsidiaries, the options will vest and become exercisable in 12 equal monthly installments on the final day of each succeeding calendar month occurring after the grant date provided that the first installment vests on June 30, 2026 and the last installment vests on the earlier of (i) the one year anniversary of the date of grant or (ii) the date of the 2027 Annual Meeting.

Carisma Therapeutics Inc.

Report date June 26, 2024 · Filed June 27, 2024

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.22 · Expires 2034-06-26Direct19,350 Reported balance After 2024-06-26 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2024-06-26 · Grant · Acquired 19,350 · Balance 19,350

F1: The shares underlying this option vest with respect to all of the shares underlying such option on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to the non-employee director's continued service as a director.

Filing footnotes · ownership attribution and instrument terms

F1: The shares underlying this option vest with respect to all of the shares underlying such option on the first anniversary of the grant date or, if earlier, immediately prior to the first annual meeting of stockholders occurring after the grant date, subject to the non-employee director's continued service as a director.

Codiak BioSciences, Inc.

Report date February 17, 2021 · Filed February 17, 2021

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect4,761 Reported balance After 2021-02-17 transaction · row 1
1 source row

Row 1 · 2021-02-17 · Purchase · Acquired 4,761 · Balance 4,761

NextCure, Inc.

Report date June 11, 2020 · Filed June 15, 2020

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (Right to Buy)SEC Table II · derivative / convertible security · Conversion / exercise price $24.13 · Expires 2030-06-10Direct14,250 Reported balance After 2020-06-11 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2020-06-11 · Grant · Acquired 14,250 · Balance 14,250

F1: The option vests in full on the earlier of June 11, 2021 and the date of the 2021 Annual Meeting of Stockholders.

Filing footnotes · ownership attribution and instrument terms

F1: The option vests in full on the earlier of June 11, 2021 and the date of the 2021 Annual Meeting of Stockholders.

Oncorus, Inc.

Report date October 01, 2020 · Filed October 01, 2020

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.57 · Expires 2026-04-26DirectNot disclosed Reported balance Holding disclosure · report date 2020-10-01 · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · Balance Not disclosed

F1: Fully vested.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.57 · Expires 2026-08-28DirectNot disclosed Reported balance Holding disclosure · report date 2020-10-01 · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · Balance Not disclosed

F1: Fully vested.

Filing footnotes · ownership attribution and instrument terms

F1: Fully vested.

Repare Therapeutics Inc.

Report date June 17, 2024 · Filed June 20, 2024

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $3.80 · Expires 2034-06-16Direct27,200 Reported balance After 2024-06-17 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2024-06-17 · Grant · Acquired 27,200 · Balance 27,200

F1: The option will vest in equal monthly installments over twelve (12) months from the date of grant, subject to Reporting Person continuing to provide service through each such date.

Filing footnotes · ownership attribution and instrument terms

F1: The option will vest in equal monthly installments over twelve (12) months from the date of grant, subject to Reporting Person continuing to provide service through each such date.

Syndax Pharmaceuticals Inc

Report date February 07, 2024 · Filed February 09, 2024

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect34,836 Reported balance After 2024-02-07 transaction · row 1
1 source row

Row 1 · 2024-02-07 · Grant · Acquired 17,000 · Balance 34,836

F1: Award of Restricted Stock Units that vests one year from the date of grant. The shares underlying such Restricted Stock Units will not be delivered to the Reporting Person and may not be transferred or sold until the earlier of a separation from service, death, disability or change in control.

Filing footnotes · ownership attribution and instrument terms

F1: Award of Restricted Stock Units that vests one year from the date of grant. The shares underlying such Restricted Stock Units will not be delivered to the Reporting Person and may not be transferred or sold until the earlier of a separation from service, death, disability or change in control.

Werewolf Therapeutics, Inc.

Report date June 12, 2025 · Filed June 13, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $1.29 · Expires 2035-06-11Direct27,000 Reported balance After 2025-06-12 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2025-06-12 · Grant · Acquired 27,000 · Balance 27,000

F1: The option was granted on June 12, 2025. The shares underlying the option vest in full on the earlier of the first anniversary of the grant date and the next annual meeting of stockholders following the grant date, subject to the reporting person's continued service as a director.

Filing footnotes · ownership attribution and instrument terms

F1: The option was granted on June 12, 2025. The shares underlying the option vest in full on the earlier of the first anniversary of the grant date and the next annual meeting of stockholders following the grant date, subject to the reporting person's continued service as a director.

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
September 20, 2022 Filed Sep 21, 2022 20:18 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 59,649 $10.90 $650,174.10
Disclosure

SEC source: 0001562180-22-006788 · primarydocument.xml · nonDerivative · entry 3

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 77,485

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
September 19, 2022 Filed Sep 21, 2022 20:18 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 114,339 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001562180-22-006788 · primarydocument.xml · derivative · entry 5

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 114,339 shares

Expires 2025-09-09

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_date: This option is fully vested.

Read SEC document
September 19, 2022 Filed Sep 21, 2022 20:18 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 114,339 $23.03 $2,633,044.23
Disclosure

SEC source: 0001562180-22-006788 · primarydocument.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 774,958 options to purchase shares of common stock that are vested and immediately exercisable and a total of 370,042 options to purchase shares of common stock that have not yet vested.

F2 · price: The sale prices ranged from $22.50 to $23.35

Read SEC document
September 19, 2022 Filed Sep 21, 2022 20:18 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 114,339 $10.90 $1,246,295.10
Disclosure

SEC source: 0001562180-22-006788 · primarydocument.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,175

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
September 16, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 71,966 $0.00 Strike: $7.20 $0.00
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · derivative · entry 12

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 71,966 shares

Expires 2025-06-30

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: This option is fully vested.

Read SEC document
September 16, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 53,034 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · derivative · entry 11

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 53,034 shares

Expires 2025-09-09

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: This option is fully vested.

Read SEC document
September 16, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 53,034 $23.22 $1,231,422.96
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 8

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 948,946 options to purchase shares of common stock that are vested and immediately exercisable and a total of 245,042 options to purchase shares of common stock that have not yet vested.

F4 · price: The sale prices ranged from $22.96 to $23.99

Read SEC document
September 16, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 53,034 $10.90 $578,070.60
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 7

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 70,870

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
September 16, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 71,966 $23.22 $1,671,014.54
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 6

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 948,946 options to purchase shares of common stock that are vested and immediately exercisable and a total of 245,042 options to purchase shares of common stock that have not yet vested.

F4 · price: The sale prices ranged from $22.96 to $23.99

Read SEC document
September 16, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 71,966 $7.20 $518,155.20
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 5

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 89,802

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
September 15, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 66,775 $0.00 Strike: $7.20 $0.00
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · derivative · entry 10

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 66,775 shares

Expires 2025-06-30

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: This option is fully vested.

Read SEC document
September 15, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 66,775 $24.20 $1,616,035.13
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 4

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 948,946 options to purchase shares of common stock that are vested and immediately exercisable and a total of 245,042 options to purchase shares of common stock that have not yet vested.

F3 · price: The sale prices ranged from $23.36 to $24.64

Read SEC document
September 15, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 66,775 $7.20 $480,780.00
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 3

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,611

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
September 14, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 87,645 $0.00 Strike: $7.20 $0.00
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · derivative · entry 9

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 87,645 shares

Expires 2025-06-30

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: This option is fully vested.

Read SEC document
September 14, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 87,645 $23.80 $2,085,854.59
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 948,946 options to purchase shares of common stock that are vested and immediately exercisable and a total of 245,042 options to purchase shares of common stock that have not yet vested.

F2 · price: The sale prices ranged from $23.36 to $24.01

Read SEC document
September 14, 2022 Filed Sep 16, 2022 21:34 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 87,645 $7.20 $631,044.00
Disclosure

SEC source: 0001562180-22-006706 · primarydocument.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,481

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
July 01, 2022 Filed Jul 5, 2022 20:09 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 62,292 $0.00 Strike: $7.20 $0.00
Disclosure

SEC source: 0001562180-22-005475 · primarydocument.xml · derivative · entry 3

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 62,292 shares

Expires 2025-06-30

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.

F3 · derivative.exercise_date: This option is fully vested.

Read SEC document
July 01, 2022 Filed Jul 5, 2022 20:09 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 62,292 $19.00 $1,183,429.65
Disclosure

SEC source: 0001562180-22-005475 · primarydocument.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 1,200,616 options to purchase shares of common stock that are vested and immediately exercisable and a total of 397,792 options to purchase shares of common stock that have not yet vested.

F2 · price: The sale prices ranged from $18.61 to $19.38

Read SEC document
July 01, 2022 Filed Jul 5, 2022 20:09 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 62,292 $7.20 $448,502.40
Disclosure

SEC source: 0001562180-22-005475 · primarydocument.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,128

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
June 16, 2022 Filed Jun 22, 2022 00:00 UTC ARVINAS, INC. ARVN · Entity 5355 GrantStock Option (right to buy) · Derivative 10,192 $0.00 Strike: $36.79 $0.00
Disclosure

SEC source: 0001209191-22-038553 · doc4.xml · derivative · entry 1

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,192

Underlying: Common Stock · 10,192 shares

Expires 2032-06-15

F1 · derivative.exercise_date: This option award was granted on June 16, 2022. The shares underlying the award shall vest in full on the earlier of June 16, 2023 or the first meeting of the board of directors of the Issuer held after the following annual meeting of stockholders.

Read SEC document
June 01, 2022 Filed Jun 3, 2022 20:41 UTC Werewolf Therapeutics, Inc. HOWL · Entity 7244 GrantStock Option (right to buy) · Derivative 11,600 $0.00 Strike: $3.43 $0.00
Disclosure

SEC source: 0000899243-22-020987 · doc4.xml · derivative · entry 1

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,600

Underlying: Common Stock · 11,600 shares

Expires 2032-05-31

F1 · derivative.exercise_date: The option was granted on June 1, 2022. The shares underlying the option vest in full on the earlier of the first anniversary of the grant date and the next annual meeting of stockholders following the grant date, subject to the reporting person's continued service as a director.

Read SEC document
May 13, 2022 Filed May 16, 2022 23:25 UTC Repare Therapeutics Inc. RPTX · Entity 68433 GrantStock Option (right to buy) · Derivative 49,000 $0.00 Strike: $9.55 $0.00
Disclosure

SEC source: 0001209191-22-029362 · doc4.xml · derivative · entry 1

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,000

Underlying: Common Shares · 49,000 shares

Expires 2032-05-13

F1 · derivative.exercise_date: The option will vest in equal monthly installments over twelve (12) months from the date of grant, subject to Reporting Person continuing to provide service through each such date.

Read SEC document
April 14, 2022 Filed Apr 19, 2022 01:00 UTC ARVINAS, INC. ARVN · Entity 5355 Exercise / conversionStock Option (right to buy) · Derivative 16,188 $0.00 Strike: $16.00 $0.00
Disclosure

SEC source: 0001209191-22-024674 · doc4.xml · derivative · entry 5

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 494

Underlying: Common Stock · 16,188 shares

Expires 2028-09-25

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: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F5 · derivative.exercise_date: This option award was granted on September 26, 2018. 1/12 of the shares underlying the award vested as of June 28, 2018, with the remainder of the shares vesting in equal quarterly installments following June 28, 2018 through March 28, 2021.

Read SEC document
April 14, 2022 Filed Apr 19, 2022 01:00 UTC ARVINAS, INC. ARVN · Entity 5355 SaleCommon Stock 10,754 $67.03 $720,887.94
Disclosure

SEC source: 0001209191-22-024674 · doc4.xml · nonDerivative · entry 4

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,976

F1 · kind: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.58 to $67.40, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the Staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within such range.

Read SEC document
April 14, 2022 Filed Apr 19, 2022 01:00 UTC ARVINAS, INC. ARVN · Entity 5355 SaleCommon Stock 7,104 $66.07 $469,355.60
Disclosure

SEC source: 0001209191-22-024674 · doc4.xml · nonDerivative · entry 3

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,730

F1 · kind: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $65.56 to $66.54, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the Staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within such range.

Read SEC document
April 14, 2022 Filed Apr 19, 2022 01:00 UTC ARVINAS, INC. ARVN · Entity 5355 SaleCommon Stock 3,102 $65.24 $202,372.31
Disclosure

SEC source: 0001209191-22-024674 · doc4.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,834

F1 · kind: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.55 to $65.54, 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 (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within such range.

Read SEC document
April 14, 2022 Filed Apr 19, 2022 01:00 UTC ARVINAS, INC. ARVN · Entity 5355 Exercise / conversionCommon Stock 16,188 $16.00 $259,008.00
Disclosure

SEC source: 0001209191-22-024674 · doc4.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,936

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: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

Read SEC document
April 04, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 3,128 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · derivative · entry 8

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,128 shares

Expires 2025-09-09

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: This option is fully vested.

Read SEC document
April 04, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 3,128 $18.29 $57,219.88
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · nonDerivative · entry 6

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 1,221,283 options to purchase shares of common stock that are vested and immediately exercisable and a total of 439,417 options to purchase shares of common stock that have not yet vested.

F5 · price: The sale prices ranged from $17.75 to $19.17.

Read SEC document
April 04, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 3,128 $10.90 $34,095.20
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · nonDerivative · entry 5

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,964

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
April 04, 2022 Filed Apr 13, 2022 20:09 UTC Amendment Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 3,128 $0.00 Strike: $7.20 $0.00
Disclosure

SEC source: 0001562180-22-003383 · primarydocument.xml · derivative · entry 4

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,128 shares

Expires 2025-06-30

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: The Reporting Person is not reporting any new transactions in this filing. Amendment filed to correct previously filed Form that contained an incorrect option exercise price and expiration date.

F2 · derivative.exercise_date: This option is fully vested.

F1 · derivative.expiration_date: The Reporting Person is not reporting any new transactions in this filing. Amendment filed to correct previously filed Form that contained an incorrect option exercise price and expiration date.

Read SEC document
April 04, 2022 Filed Apr 13, 2022 20:09 UTC Amendment Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 3,128 $7.20 $22,521.60
Disclosure

SEC source: 0001562180-22-003383 · primarydocument.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,964

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: The Reporting Person is not reporting any new transactions in this filing. Amendment filed to correct previously filed Form that contained an incorrect option exercise price and expiration date.

Read SEC document
April 01, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 70,545 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · derivative · entry 7

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 70,545 shares

Expires 2025-09-09

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: This option is fully vested.

Read SEC document
April 01, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 70,545 $17.46 $1,231,567.56
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · nonDerivative · entry 4

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 1,221,283 options to purchase shares of common stock that are vested and immediately exercisable and a total of 439,417 options to purchase shares of common stock that have not yet vested.

F4 · price: The sale prices ranged from $17.18 to $17.69.

Read SEC document
April 01, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 70,545 $10.90 $768,940.50
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · nonDerivative · entry 3

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,381

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
April 01, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 24,500 $17.44 $427,314.30
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,836

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 1,221,283 options to purchase shares of common stock that are vested and immediately exercisable and a total of 439,417 options to purchase shares of common stock that have not yet vested.

F3 · price: The sale prices ranged from $17.19 to $17.66.

Read SEC document
April 01, 2022 Filed Apr 5, 2022 20:05 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 6,000 $17.44 $104,633.40
Disclosure

SEC source: 0001562180-22-003223 · primarydocument.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,336

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 1,221,283 options to purchase shares of common stock that are vested and immediately exercisable and a total of 439,417 options to purchase shares of common stock that have not yet vested.

F2 · price: The sale prices ranged from $17.21 to $17.62.

Read SEC document
April 01, 2022 Filed Apr 13, 2022 20:09 UTC Amendment Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 70,545 $0.00 Strike: $7.20 $0.00
Disclosure

SEC source: 0001562180-22-003383 · primarydocument.xml · derivative · entry 3

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 70,545 shares

Expires 2025-06-30

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: The Reporting Person is not reporting any new transactions in this filing. Amendment filed to correct previously filed Form that contained an incorrect option exercise price and expiration date.

F2 · derivative.exercise_date: This option is fully vested.

F1 · derivative.expiration_date: The Reporting Person is not reporting any new transactions in this filing. Amendment filed to correct previously filed Form that contained an incorrect option exercise price and expiration date.

Read SEC document
April 01, 2022 Filed Apr 13, 2022 20:09 UTC Amendment Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 70,545 $7.20 $507,924.00
Disclosure

SEC source: 0001562180-22-003383 · primarydocument.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,381

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: The Reporting Person is not reporting any new transactions in this filing. Amendment filed to correct previously filed Form that contained an incorrect option exercise price and expiration date.

Read SEC document
February 02, 2022 Filed Feb 3, 2022 22:32 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 GrantStock Options (Right to buy) · Derivative 160,000 $15.79 Strike: $15.79 $2,526,400.00
Disclosure

SEC source: 0001562180-22-001080 · primarydocument.xml · derivative · entry 1

Morrison Briggs · CIK 0001654430 · Director · President, Head of R&D

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 160,000

Underlying: Common Stock · 160,000 shares

Expires 2032-02-02

F1 · derivative.exercise_date: The securities awarded on 02/02/2022 were in the form of stock options issued pursuant to the Syndax Pharmaceuticals, Inc. 2015 Omnibus Incentive Plan. Options to purchase 100,000 shares of common stock shall vest in 48 successive equal monthly installments measured from 02/02/2022. Options to purchase 60,000 shares of common stock shall vest periodically upon the Issuer achieving certain milestones.

Read SEC document
January 14, 2022 Filed Jan 20, 2022 02:00 UTC ARVINAS, INC. ARVN · Entity 5355 Exercise / conversionStock Option (right to buy) · Derivative 16,188 $0.00 Strike: $16.00 $0.00
Disclosure

SEC source: 0000899243-22-002557 · doc4.xml · derivative · entry 6

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,682

Underlying: Common Stock · 16,188 shares

Expires 2028-09-25

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: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F6 · derivative.exercise_date: This option award was granted on September 26, 2018. 1/12 of the shares underlying the award vested as of June 28, 2018, with the remainder of the shares vesting in equal quarterly installments following June 28, 207 through March 28, 2021.

Read SEC document
January 14, 2022 Filed Jan 20, 2022 02:00 UTC ARVINAS, INC. ARVN · Entity 5355 SaleCommon Stock 2,108 $67.69 $142,696.21
Disclosure

SEC source: 0000899243-22-002557 · doc4.xml · nonDerivative · entry 5

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,748

F1 · kind: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $67.5400 to $67.9600, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer or the Staff of the SEC, upon request, the number of shares sold at each separate price within the range set forth in this footnote (5).

Read SEC document
January 14, 2022 Filed Jan 20, 2022 02:00 UTC ARVINAS, INC. ARVN · Entity 5355 SaleCommon Stock 5,100 $67.28 $343,143.81
Disclosure

SEC source: 0000899243-22-002557 · doc4.xml · nonDerivative · entry 4

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,856

F1 · kind: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $66.5300 to $67.5200, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the Staff of the SEC, upon request, the number of shares sold at each separate price within the range set forth in this footnote (4).

Read SEC document
January 14, 2022 Filed Jan 20, 2022 02:00 UTC ARVINAS, INC. ARVN · Entity 5355 SaleCommon Stock 3,833 $65.24 $250,071.44
Disclosure

SEC source: 0000899243-22-002557 · doc4.xml · nonDerivative · entry 3

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,956

F1 · kind: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $64.9200 to $65.8900, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer or the Staff of the SEC, upon request, the number of shares sold at each separate price within the range set forth in this footnote (3).

Read SEC document
January 14, 2022 Filed Jan 20, 2022 02:00 UTC ARVINAS, INC. ARVN · Entity 5355 SaleCommon Stock 9,919 $64.33 $638,109.11
Disclosure

SEC source: 0000899243-22-002557 · doc4.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,789

F1 · kind: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $63.9000 to $64.8800, 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 (the "SEC"), upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2).

Read SEC document
January 14, 2022 Filed Jan 20, 2022 02:00 UTC ARVINAS, INC. ARVN · Entity 5355 Exercise / conversionCommon Stock 16,188 $16.00 $259,008.00
Disclosure

SEC source: 0000899243-22-002557 · doc4.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,708

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: The exercises and sales reported on this form were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 16, 2021.

Read SEC document
December 17, 2021 Filed Dec 20, 2021 23:44 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 35,156 $0.00 Strike: $10.90 $0.00
Disclosure

SEC source: 0001562180-21-007810 · primarydocument.xml · derivative · entry 3

Morrison Briggs · CIK 0001654430 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 35,156 shares

Expires 2025-09-09

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.

Read SEC document
December 17, 2021 Filed Dec 20, 2021 23:44 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 SaleCommon Stock 35,156 $20.00 $703,120.00
Disclosure

SEC source: 0001562180-21-007810 · primarydocument.xml · nonDerivative · entry 2

Morrison Briggs · CIK 0001654430 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,336

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 plan adopted by the Reporting Person. Following the sales reported in this Form 4, the Reporting Person has a total of 1,305,602 options to purchase shares of common stock that are vested and immediately exercisable and a total of 339,083 options to purchase shares of common stock that have not yet vested.

Read SEC document
December 17, 2021 Filed Dec 20, 2021 23:44 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionCommon Stock 35,156 $10.90 $383,200.40
Disclosure

SEC source: 0001562180-21-007810 · primarydocument.xml · nonDerivative · entry 1

Morrison Briggs · CIK 0001654430 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,492

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
September 20, 2021 Filed Sep 21, 2021 20:35 UTC Syndax Pharmaceuticals Inc SNDX · Entity 4578 Exercise / conversionStock Options (Right to buy) · Derivative 50 $0.00 Strike: $7.20 $0.00
Disclosure

SEC source: 0001562180-21-006038 · primarydocument.xml · derivative · entry 6

Morrison Briggs · CIK 0001654430 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 50 shares

Expires 2025-06-30

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.

F3 · derivative.exercise_date: This option is fully vested.

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.