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Nasdaq · USD

ERAS

Erasca, Inc.

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3796
SEC CIK
0001761918
Parsed reports
127

Last 12 months

Inside the activity.

0 purchase rows · 3 sale rows

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

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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
August 10, 2026 Filed Aug 12, 2026 20:22 UTC
Fuchs Charles S.President, R&D
GrantStock option (right to buy) · Derivative 1,300,000 $0.00 Strike: $18.12 $0.00
Disclosure

SEC source: 0001193125-26-346924 · ownership.xml · derivative · entry 1

Fuchs Charles S. · CIK 0001719576 · President, R&D

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,300,000

Underlying: Common Stock · 1,300,000 shares

Expires 2036-08-09

F1 · shares: The reported option award was granted in connection with the Reporting Person's commencement of employment. Of the total option award, 21,480 shares were granted under the Issuer's 2021 Incentive Award Plan, with a portion intended to qualify as an incentive stock option under Section 422 of the Internal Revenue Code to the extent permitted by law. The remaining 1,278,520 shares were granted as a nonqualified stock option under the Issuer's 2026 Employment Inducement Incentive Award Plan.

F2 · derivative.exercise_date: The reported option award vests as follows: 25% of the shares subject to the option will vest on the first anniversary of the date of grant, and the remaining 75% of the shares will vest in 36 substantially equal monthly installments thereafter, subject to the Reporting Person's continued service with the Issuer through each applicable vesting date.

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June 26, 2026 Filed Jun 29, 2026 23:07 UTC GrantStock option (right to buy) · Derivative 29,888 $0.00 Strike: $16.01 $0.00
Disclosure

SEC source: 0001193125-26-288910 · ownership.xml · derivative · entry 1

Start Valerie Denise Harding · CIK 0001652037 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,888

Underlying: Common Stock · 29,888 shares

Expires 2036-06-26

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 26, 2027, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 23:06 UTC
LIU JEAN IDirector
GrantStock option (right to buy) · Derivative 29,888 $0.00 Strike: $16.01 $0.00
Disclosure

SEC source: 0001193125-26-288908 · ownership.xml · derivative · entry 1

LIU JEAN I · CIK 0001241357 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,888

Underlying: Common Stock · 29,888 shares

Expires 2036-06-26

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 26, 2027, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 23:05 UTC GrantStock option (right to buy) · Derivative 29,888 $0.00 Strike: $16.01 $0.00
Disclosure

SEC source: 0001193125-26-288906 · ownership.xml · derivative · entry 1

Multani Pratik S · CIK 0001586894 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,888

Underlying: Common Stock · 29,888 shares

Expires 2036-06-26

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 26, 2027, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 23:05 UTC GrantStock option (right to buy) · Derivative 29,888 $0.00 Strike: $16.01 $0.00
Disclosure

SEC source: 0001193125-26-288905 · ownership.xml · derivative · entry 1

Casdin Alexander W. · CIK 0001455228 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,888

Underlying: Common Stock · 29,888 shares

Expires 2036-06-26

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 26, 2027, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 23:03 UTC GrantStock option (right to buy) · Derivative 29,888 $0.00 Strike: $16.01 $0.00
Disclosure

SEC source: 0001193125-26-288903 · ownership.xml · derivative · entry 1

Hambleton Julie · CIK 0001578771 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,888

Underlying: Common Stock · 29,888 shares

Expires 2036-06-26

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 26, 2027, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 26, 2026 Filed Jun 29, 2026 23:03 UTC GrantStock option (right to buy) · Derivative 29,888 $0.00 Strike: $16.01 $0.00
Disclosure

SEC source: 0001193125-26-288902 · ownership.xml · derivative · entry 1

Bristol James Arthur · CIK 0001715153 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,888

Underlying: Common Stock · 29,888 shares

Expires 2036-06-26

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 26, 2027, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
April 01, 2026 Filed Apr 3, 2026 13:00 UTC
Garner EbunChief Legal Officer
Exercise / conversionStock Option (right to buy) · Derivative 80,000 $0.00 Strike: $1.70 $0.00
Disclosure

SEC source: 0001193125-26-141395 · ownership.xml · derivative · entry 3

Garner Ebun · CIK 0001364554 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 280,000

Underlying: Common Stock · 80,000 shares

Expires 2034-02-04

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 exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

F3 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on February 1, 2024, subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

Read SEC document
April 01, 2026 Filed Apr 3, 2026 13:00 UTC
Garner EbunChief Legal Officer
SaleCommon Stock 80,000 $16.40 $1,312,000.00
Disclosure

SEC source: 0001193125-26-141395 · ownership.xml · nonDerivative · entry 2

Garner Ebun · CIK 0001364554 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,076

F1 · kind: The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

F2 · price: This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $16.11 to $16.58. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
April 01, 2026 Filed Apr 3, 2026 13:00 UTC
Garner EbunChief Legal Officer
Exercise / conversionCommon Stock 80,000 $1.70 $136,000.00
Disclosure

SEC source: 0001193125-26-141395 · ownership.xml · nonDerivative · entry 1

Garner Ebun · CIK 0001364554 · Chief Legal Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 105,076

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

Read SEC document
March 04, 2026 Filed Mar 6, 2026 14:00 UTC
Morris ShannonChief Medical Officer
SaleCommon Stock 20,000 $15.04 $300,760.00
Disclosure

SEC source: 0001193125-26-095181 · ownership.xml · nonDerivative · entry 2

Morris Shannon · CIK 0001973527 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

F1 · kind: The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

F2 · price: This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $15.00 to $15.10. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
March 04, 2026 Filed Mar 6, 2026 14:00 UTC
Morris ShannonChief Medical Officer
Exercise / conversionCommon Stock 20,000 $1.70 $34,000.00
Disclosure

SEC source: 0001193125-26-095181 · ownership.xml · nonDerivative · entry 1

Morris Shannon · CIK 0001973527 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 20,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

Read SEC document
January 29, 2026 Filed Jan 30, 2026 09:04 UTC
Chacko David M.CFO and CBO
GrantStock option (right to buy) · Derivative 640,000 $0.00 Strike: $10.31 $0.00
Disclosure

SEC source: 0001193125-26-030624 · ownership.xml · derivative · entry 2

Chacko David M. · CIK 0001871801 · CFO and CBO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 640,000

Underlying: Common Stock · 640,000 shares

Expires 2036-01-29

F3 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly on the 29th day of each month (or the last day of February), starting in February 2026, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

Read SEC document
January 29, 2026 Filed Jan 30, 2026 14:05 UTC
Lim Jonathan EDirector · Chairman & CEO · 10% owner
GrantStock option (right to buy) · Derivative 2,000,000 $0.00 Strike: $10.31 $0.00
Disclosure

SEC source: 0001193125-26-030626 · ownership.xml · derivative · entry 1

Lim Jonathan E · CIK 0001283290 · Director · Chairman & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,000,000

Underlying: Common Stock · 2,000,000 shares

Expires 2036-01-29

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly on the 29th day of each month (or the last day of February), starting in February 2026, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

Read SEC document
January 29, 2026 Filed Jan 30, 2026 14:02 UTC
Morris ShannonChief Medical Officer
GrantStock option (right to buy) · Derivative 625,000 $0.00 Strike: $10.31 $0.00
Disclosure

SEC source: 0001193125-26-030619 · ownership.xml · derivative · entry 1

Morris Shannon · CIK 0001973527 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 625,000

Underlying: Common Stock · 625,000 shares

Expires 2036-01-29

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly on the 29th day of each month (or the last day of February), starting in February 2026, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

Read SEC document
January 29, 2026 Filed Jan 30, 2026 14:01 UTC GrantStock option (right to buy) · Derivative 96,000 $0.00 Strike: $10.31 $0.00
Disclosure

SEC source: 0001193125-26-030617 · ownership.xml · derivative · entry 1

Varney Michael David · CIK 0001638647 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,000

Underlying: Common Stock · 96,000 shares

Expires 2036-01-29

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly on the 29th day of each month (or the last day of February), starting in February 2026, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

Read SEC document
January 29, 2026 Filed Jan 30, 2026 14:00 UTC
Garner EbunGeneral Counsel & Corp. Sec.
GrantStock option (right to buy) · Derivative 560,000 $0.00 Strike: $10.31 $0.00
Disclosure

SEC source: 0001193125-26-030615 · ownership.xml · derivative · entry 1

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 560,000

Underlying: Common Stock · 560,000 shares

Expires 2036-01-29

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly on the 29th day of each month (or the last day of February), starting in February 2026, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 02:20 UTC
Garner EbunGeneral Counsel & Corp. Sec.
SaleCommon Stock 120,000 $5.59 $670,812.00
Disclosure

SEC source: 0001193125-26-008076 · ownership.xml · nonDerivative · entry 3

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,076

F2 · kind: The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

F3 · price: This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $5.50 to $5.80. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Read SEC document
January 07, 2026 Filed Jan 9, 2026 02:20 UTC
Garner EbunGeneral Counsel & Corp. Sec.
Exercise / conversionCommon Stock 120,000 $1.70 $204,000.00
Disclosure

SEC source: 0001193125-26-008076 · ownership.xml · nonDerivative · entry 2

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 145,076

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · kind: The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

Read SEC document
January 01, 2026 Filed Jan 5, 2026 14:00 UTC GrantStock Option (right to buy) · Derivative 37,762 $0.00 Strike: $3.72 $0.00
Disclosure

SEC source: 0001193125-26-001611 · ownership.xml · derivative · entry 1

Bristol James Arthur · CIK 0001715153 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,762

Underlying: Common Stock · 37,762 shares

Expires 2036-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2026 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2026.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

Read SEC document
January 01, 2026 Filed Jan 5, 2026 14:00 UTC
LIU JEAN IDirector
GrantStock Option (right to buy) · Derivative 20,617 $0.00 Strike: $3.72 $0.00
Disclosure

SEC source: 0001193125-26-001610 · ownership.xml · derivative · entry 1

LIU JEAN I · CIK 0001241357 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,617

Underlying: Common Stock · 20,617 shares

Expires 2036-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2026 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2026.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

Read SEC document
January 01, 2026 Filed Jan 5, 2026 14:00 UTC GrantStock Option (right to buy) · Derivative 19,532 $0.00 Strike: $3.72 $0.00
Disclosure

SEC source: 0001193125-26-001609 · ownership.xml · derivative · entry 1

Multani Pratik S · CIK 0001586894 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,532

Underlying: Common Stock · 19,532 shares

Expires 2036-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2026 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2026.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

Read SEC document
January 01, 2026 Filed Jan 5, 2026 14:00 UTC GrantStock Option (right to buy) · Derivative 24,306 $0.00 Strike: $3.72 $0.00
Disclosure

SEC source: 0001193125-26-001608 · ownership.xml · derivative · entry 1

Start Valerie Denise Harding · CIK 0001652037 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,306

Underlying: Common Stock · 24,306 shares

Expires 2036-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2026 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2026.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

Read SEC document
January 01, 2026 Filed Jan 5, 2026 14:00 UTC GrantStock Option (right to buy) · Derivative 23,872 $0.00 Strike: $3.72 $0.00
Disclosure

SEC source: 0001193125-26-001606 · ownership.xml · derivative · entry 1

Casdin Alexander W. · CIK 0001455228 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,872

Underlying: Common Stock · 23,872 shares

Expires 2036-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2026 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2026.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

Read SEC document
December 15, 2025 Filed Jan 9, 2026 02:20 UTC
Garner EbunGeneral Counsel & Corp. Sec.
GrantCommon Stock 3,902 $1.19 $4,660.16
Disclosure

SEC source: 0001193125-26-008076 · ownership.xml · nonDerivative · entry 1

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 25,076

F1 · price: The purchase price was calculated in accordance with the Issuer's 2021 Employee Stock Purchase Plan.

Read SEC document
December 15, 2025 Filed Jan 30, 2026 09:04 UTC
Chacko David M.CFO and CBO
OtherCommon Stock 17,793 $1.19 $21,250.18
Disclosure

SEC source: 0001193125-26-030624 · ownership.xml · nonDerivative · entry 1

Chacko David M. · CIK 0001871801 · CFO and CBO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 279,980

F1 · kind: Shares purchased under the Company's 2021 Employee Stock Purchase Plan

F2 · price: The purchase price was calculated in accordance with the issuer's 2021 Employee Stock Purchase Plan.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:28 UTC GrantStock option (right to buy) · Derivative 120,000 $0.00 Strike: $1.45 $0.00
Disclosure

SEC source: 0000950170-25-090426 · ownership.xml · derivative · entry 1

Varney Michael David · CIK 0001638647 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires 2035-06-23

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 24, 2026, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:27 UTC GrantStock option (right to buy) · Derivative 120,000 $0.00 Strike: $1.45 $0.00
Disclosure

SEC source: 0000950170-25-090423 · ownership.xml · derivative · entry 1

Hambleton Julie · CIK 0001578771 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires 2035-06-23

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 24, 2026, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:27 UTC
LIU JEAN IDirector
GrantStock option (right to buy) · Derivative 120,000 $0.00 Strike: $1.45 $0.00
Disclosure

SEC source: 0000950170-25-090424 · ownership.xml · derivative · entry 1

LIU JEAN I · CIK 0001241357 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires 2035-06-23

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 24, 2026, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:26 UTC GrantStock option (right to buy) · Derivative 120,000 $0.00 Strike: $1.45 $0.00
Disclosure

SEC source: 0000950170-25-090422 · ownership.xml · derivative · entry 1

Start Valerie Denise Harding · CIK 0001652037 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires 2035-06-23

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 24, 2026, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:24 UTC GrantStock option (right to buy) · Derivative 120,000 $0.00 Strike: $1.45 $0.00
Disclosure

SEC source: 0000950170-25-090418 · ownership.xml · derivative · entry 1

Bristol James Arthur · CIK 0001715153 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires 2035-06-23

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 24, 2026, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:25 UTC GrantStock option (right to buy) · Derivative 120,000 $0.00 Strike: $1.45 $0.00
Disclosure

SEC source: 0000950170-25-090420 · ownership.xml · derivative · entry 1

Multani Pratik S · CIK 0001586894 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires 2035-06-23

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 24, 2026, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
June 24, 2025 Filed Jun 26, 2025 20:23 UTC GrantStock option (right to buy) · Derivative 120,000 $0.00 Strike: $1.45 $0.00
Disclosure

SEC source: 0000950170-25-090415 · ownership.xml · derivative · entry 1

Casdin Alexander W. · CIK 0001455228 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,000

Underlying: Common Stock · 120,000 shares

Expires 2035-06-23

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 24, 2026, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

Read SEC document
May 23, 2025 Filed Jun 3, 2025 20:15 UTC GiftCommon Stock 6,200 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-080941 · ownership.xml · nonDerivative · entry 2

Multani Pratik S · CIK 0001586894 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · By Multani Family Trust U/A DTD 08/10/2006

Disclosed balance after: 6,200

F1 · acquired: The Reporting Person transferred 6,200 shares of common stock to a family trust for no consideration, for estate planning purposes. The Reporting Person holds all voting and dispositive power with respect to the securities held by the trust and remains the beneficial owner of such securities.

Read SEC document
May 23, 2025 Filed Jun 3, 2025 20:15 UTC GiftCommon Stock 6,200 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-080941 · ownership.xml · nonDerivative · entry 1

Multani Pratik S · CIK 0001586894 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 166,666

F1 · acquired: The Reporting Person transferred 6,200 shares of common stock to a family trust for no consideration, for estate planning purposes. The Reporting Person holds all voting and dispositive power with respect to the securities held by the trust and remains the beneficial owner of such securities.

Read SEC document
March 04, 2025 Filed Mar 6, 2026 14:00 UTC
Morris ShannonChief Medical Officer
Exercise / conversionStock Option (right to buy) · Derivative 20,000 $0.00 Strike: $1.70 $0.00
Disclosure

SEC source: 0001193125-26-095181 · ownership.xml · derivative · entry 3

Morris Shannon · CIK 0001973527 · Chief Medical Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 515,800

Underlying: Common Stock · 20,000 shares

Expires 2034-02-04

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 exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

F3 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on February 1, 2024, subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

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February 13, 2025 Filed Feb 18, 2025 14:00 UTC
Garner EbunGeneral Counsel & Corp. Sec.
GrantStock option (right to buy) · Derivative 50,000 $0.00 Strike: $1.63 $0.00
Disclosure

SEC source: 0000950170-25-021831 · ownership.xml · derivative · entry 1

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Stock · 50,000 shares

Expires 2035-02-12

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on February 13, 2025, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

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February 03, 2025 Filed Feb 5, 2025 09:24 UTC
Chacko David M.CFO and CBO
GrantStock option (right to buy) · Derivative 800,000 $0.00 Strike: $1.76 $0.00
Disclosure

SEC source: 0000950170-25-014197 · ownership.xml · derivative · entry 3

Chacko David M. · CIK 0001871801 · CFO and CBO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 800,000

Underlying: Common Stock · 800,000 shares

Expires 2035-02-02

F4 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on February 1, 2025, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

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February 03, 2025 Filed Feb 5, 2025 14:19 UTC
Garner EbunGeneral Counsel & Corp. Sec.
GrantStock option (right to buy) · Derivative 700,000 $0.00 Strike: $1.76 $0.00
Disclosure

SEC source: 0000950170-25-014194 · ownership.xml · derivative · entry 3

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 700,000

Underlying: Common Stock · 700,000 shares

Expires 2035-02-02

F4 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on February 1, 2025, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

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February 03, 2025 Filed Feb 5, 2025 14:20 UTC
Morris ShannonChief Medical Officer
GrantStock option (right to buy) · Derivative 780,000 $0.00 Strike: $1.76 $0.00
Disclosure

SEC source: 0000950170-25-014195 · ownership.xml · derivative · entry 1

Morris Shannon · CIK 0001973527 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 780,000

Underlying: Common Stock · 780,000 shares

Expires 2035-02-02

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on February 1, 2025, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

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February 03, 2025 Filed Feb 5, 2025 14:15 UTC
Lim Jonathan EDirector · Chairman & CEO · 10% owner
GrantStock option (right to buy) · Derivative 2,500,000 $0.00 Strike: $1.76 $0.00
Disclosure

SEC source: 0000950170-25-014192 · ownership.xml · derivative · entry 1

Lim Jonathan E · CIK 0001283290 · Director · Chairman & CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,500,000

Underlying: Common Stock · 2,500,000 shares

Expires 2035-02-02

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on February 1, 2025, subject to the Reporting Person's continuous service to the issuer on each such vesting date.

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January 07, 2025 Filed Jan 9, 2026 02:20 UTC
Garner EbunGeneral Counsel & Corp. Sec.
Exercise / conversionStock Option (right to buy) · Derivative 120,000 $0.00 Strike: $1.70 $0.00
Disclosure

SEC source: 0001193125-26-008076 · ownership.xml · derivative · entry 4

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 360,000

Underlying: Common Stock · 120,000 shares

Expires 2034-02-04

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 · kind: The exercise and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 30, 2024.

F4 · derivative.exercise_date: The shares subject to this option award are fully vested and exercisable as of the date hereof.

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January 01, 2025 Filed Jan 3, 2025 01:28 UTC GrantStock Option (right to buy) · Derivative 28,877 $0.00 Strike: $2.51 $0.00
Disclosure

SEC source: 0000950170-25-000639 · ownership.xml · derivative · entry 1

Casdin Alexander W. · CIK 0001455228 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,877

Underlying: Common Stock · 28,877 shares

Expires 2035-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2025 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2025.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

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January 01, 2025 Filed Jan 3, 2025 01:21 UTC
LIU JEAN IDirector
GrantStock Option (right to buy) · Derivative 24,939 $0.00 Strike: $2.51 $0.00
Disclosure

SEC source: 0000950170-25-000637 · ownership.xml · derivative · entry 1

LIU JEAN I · CIK 0001241357 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,939

Underlying: Common Stock · 24,939 shares

Expires 2035-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2025 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2025.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

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January 01, 2025 Filed Jan 3, 2025 01:19 UTC GrantStock Option (right to buy) · Derivative 29,402 $0.00 Strike: $2.51 $0.00
Disclosure

SEC source: 0000950170-25-000635 · ownership.xml · derivative · entry 1

Start Valerie Denise Harding · CIK 0001652037 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,402

Underlying: Common Stock · 29,402 shares

Expires 2035-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2025 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2025.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

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January 01, 2025 Filed Jan 3, 2025 01:14 UTC GrantStock Option (right to buy) · Derivative 45,678 $0.00 Strike: $2.51 $0.00
Disclosure

SEC source: 0000950170-25-000630 · ownership.xml · derivative · entry 1

Bristol James Arthur · CIK 0001715153 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,678

Underlying: Common Stock · 45,678 shares

Expires 2035-01-01

F1 · security: At the election of the filing person the option grant was issued in lieu of the cash compensation payable to such person in 2025 in connection with each position on the issuer's board of directors and its committees for which such person is anticipated to serve in 2025.

F2 · derivative.exercise_date: The option will vest and become exercisable in monthly, cumulative 1/12 increments beginning one month from the date of grant, subject to such person continuing to serve on the issuer's board of directors through the applicable vesting date.

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December 13, 2024 Filed Feb 5, 2025 09:24 UTC
Chacko David M.CFO and CBO
OtherCommon Stock 12,324 $1.56 $19,274.74
Disclosure

SEC source: 0000950170-25-014197 · ownership.xml · nonDerivative · entry 2

Chacko David M. · CIK 0001871801 · CFO and CBO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 262,187

F1 · kind: Shares purchased under the Company's 2021 Employee Stock Purchase Plan

F2 · price: The purchase price was calculated in accordance with the issuer's 2021 Employee Stock Purchase Plan.

F3 · balance_after: Reflects all transactions reported under this report.

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December 13, 2024 Filed Feb 5, 2025 14:19 UTC
Garner EbunGeneral Counsel & Corp. Sec.
OtherCommon Stock 5,731 $1.56 $8,963.28
Disclosure

SEC source: 0000950170-25-014194 · ownership.xml · nonDerivative · entry 2

Garner Ebun · CIK 0001364554 · General Counsel & Corp. Sec.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,174

F1 · kind: Shares purchased under the Company's 2021 Employee Stock Purchase Plan

F2 · price: The purchase price was calculated in accordance with the issuer's 2021 Employee Stock Purchase Plan.

F3 · balance_after: Reflects all transactions reported under this report.

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June 20, 2024 Filed Jun 21, 2024 08:45 UTC
Chacko David M.CFO and CBO
GrantStock Option (right to buy) · Derivative 278,812 $0.00 Strike: $2.03 $0.00
Disclosure

SEC source: 0001209191-24-005923 · doc4.xml · derivative · entry 1

Chacko David M. · CIK 0001871801 · CFO and CBO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 278,812

Underlying: Common Stock · 278,812 shares

Expires 2034-06-19

F1 · derivative.exercise_date: 1/48th of the shares subject to the option vest monthly, with vesting starting on June 20, 2024, subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

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June 20, 2024 Filed Jun 21, 2024 12:56 UTC GrantStock Option (right to buy) · Derivative 60,000 $0.00 Strike: $2.03 $0.00
Disclosure

SEC source: 0001209191-24-005929 · doc4.xml · derivative · entry 1

Varney Michael David · CIK 0001638647 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,000

Underlying: Common Stock · 60,000 shares

Expires 2034-06-19

F1 · derivative.exercise_date: 100% of the options to purchase shares vest on June 20, 2025, subject to the Reporting Person's continuous service to the Issuer on such vesting date.

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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.