SERA

SEC source: 0001193125-25-240530 · ownership.xml · derivative · entry 2

Inglis Tiffany Eul Davis · CIK 0002091798 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,000

Underlying: Class A Common Stock · 107,000 shares

Expires 2035-10-15

F2 · derivative.exercise_date: These stock options vest over four years as follows: 25% of the original grant amount vests on the first anniversary of the vesting commencement date, which is October 10, 2025, and 1/36 of the remaining amount vests in monthly installments for three years thereafter, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0001193125-25-240530 · ownership.xml · nonDerivative · entry 1

Inglis Tiffany Eul Davis · CIK 0002091798 · Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,000

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over four years as follows: 25% of the original grant amount vests on the first anniversary of the vesting commencement date, which is October 10, 2025, and 1/12 of the remaining amount vests in quarterly installments for three years thereafter, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0001193125-25-234568 · ownership.xml · nonDerivative · entry 1

Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 97,932

F1 · kind: The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.04 to $3.28, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001193125-25-231898 · ownership.xml · nonDerivative · entry 1

Mirza Mansoor Raza · CIK 0001588389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,253

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.15 to $3.20, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0000950170-25-114576 · ownership.xml · nonDerivative · entry 1

Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,932

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.05 to $3.24, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-114579 · ownership.xml · nonDerivative · entry 1

Lindgardt Zhenya · CIK 0001891299 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 807,890

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.05 to $3.24, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-114578 · ownership.xml · nonDerivative · entry 1

Kearney Paul · CIK 0001888075 · Chief Data Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,669

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.05 to $3.24, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-114577 · ownership.xml · nonDerivative · entry 1

Jackson Benjamin · CIK 0001779964 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,817

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.05 to $3.24, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-114575 · ownership.xml · nonDerivative · entry 1

Boniface John J. · CIK 0001870674 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,493

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.05 to $3.24, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-114574 · ownership.xml · nonDerivative · entry 1

Aerts Austin · CIK 0001979974 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 284,670

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.05 to $3.24, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0001421563-25-000009 · ownership.xml · nonDerivative · entry 1

Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 100,577

F1 · kind: The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.99 to $3.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001306386-25-000006 · ownership.xml · nonDerivative · entry 1

Lawrence Sandra AJ · CIK 0001306386 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 18,814

F1 · kind: The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.99 to $3.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001979974-25-000009 · ownership.xml · nonDerivative · entry 1

Aerts Austin · CIK 0001979974 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 285,585

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.00 to $3.33, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0001891299-25-000010 · ownership.xml · nonDerivative · entry 1

Lindgardt Zhenya · CIK 0001891299 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 811,136

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $3.00 to $3.33, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-114266 · ownership.xml · nonDerivative · entry 1

Lawrence Sandra AJ · CIK 0001306386 · Director

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 21,153

F1 · kind: The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 10, 2025.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.99 to $3.12, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001588389-25-000008 · ownership.xml · nonDerivative · entry 1

Mirza Mansoor Raza · CIK 0001588389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,480

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $3.35 to $3.36, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001888075-25-000010 · ownership.xml · nonDerivative · entry 1

Kearney Paul · CIK 0001888075 · Chief Data Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 176,940

F1 · kind: The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025.

SEC source: 0001888075-25-000007 · ownership.xml · nonDerivative · entry 1

Kearney Paul · CIK 0001888075 · Chief Data Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 178,398

F1 · kind: The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025.

SEC source: 0001421563-25-000007 · ownership.xml · nonDerivative · entry 1

Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 102,577

F1 · kind: The transaction(s) reported on this Form 4 was/were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 21, 2025.

F2 · price: The price reported is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.17 to $2.25, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.

SEC source: 0001421563-25-000005 · ownership.xml · nonDerivative · entry 1

Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,577

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.28 to $2.73, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0001891299-25-000006 · ownership.xml · nonDerivative · entry 1

Lindgardt Zhenya · CIK 0001891299 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 832,294

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.28 to $2.73, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0001888075-25-000005 · ownership.xml · nonDerivative · entry 1

Kearney Paul · CIK 0001888075 · Chief Data Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 188,940

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.28 to $2.73, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0001779964-25-000005 · ownership.xml · nonDerivative · entry 1

Jackson Benjamin · CIK 0001779964 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,751

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.28 to $2.73, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0001870674-25-000005 · ownership.xml · nonDerivative · entry 1

Boniface John J. · CIK 0001870674 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,888

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.28 to $2.73, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0001979974-25-000005 · ownership.xml · nonDerivative · entry 1

Aerts Austin · CIK 0001979974 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 290,848

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $2.28 to $2.73, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-103280 · ownership.xml · nonDerivative · entry 1

Mirza Mansoor Raza · CIK 0001588389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,702

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

SEC source: 0000950170-25-094633 · ownership.xml · nonDerivative · entry 1

Mirza Mansoor Raza · CIK 0001588389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,927

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

SEC source: 0000950170-25-089122 · ownership.xml · derivative · entry 2

Anderson Dyaarl Lee Jr. · CIK 0002072324 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,534

Underlying: Class A Common Stock · 102,534 shares

Expires 2035-06-23

F2 · derivative.exercise_date: These stock options vest over four years as follows: 25% of the original grant amount vests on the first anniversary of the vesting commencement date, which is June 10, 2025, and 1/36 of the remaining amount vests in monthly installments for three years thereafter, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0000950170-25-089122 · ownership.xml · nonDerivative · entry 1

Anderson Dyaarl Lee Jr. · CIK 0002072324 · Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,114

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over four years as follows: 25% of the original grant amount vests on the first anniversary of the vesting commencement date, which is June 10, 2025, and 1/12 of the remaining amount vests in quarterly installments for three years thereafter, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0000950170-25-085021 · ownership.xml · nonDerivative · entry 1

Harrison Robert Gardner · CIK 0001421563 · Chief Information Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,539

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.45 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-085024 · ownership.xml · nonDerivative · entry 2

Aerts Austin · CIK 0001979974 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 296,648

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F3 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.45 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-085023 · ownership.xml · nonDerivative · entry 1

Kearney Paul · CIK 0001888075 · Chief Data Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 195,400

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.45 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-085020 · ownership.xml · nonDerivative · entry 2

Lindgardt Zhenya · CIK 0001891299 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 840,865

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F3 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.45 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-085694 · ownership.xml · nonDerivative · entry 1

Jackson Benjamin · CIK 0001779964 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,198

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.45 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-085692 · ownership.xml · nonDerivative · entry 1

Boniface John J. · CIK 0001870674 · Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,982

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.45 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-085024 · ownership.xml · nonDerivative · entry 1

Aerts Austin · CIK 0001979974 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 297,593

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.37 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-085020 · ownership.xml · nonDerivative · entry 1

Lindgardt Zhenya · CIK 0001891299 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 844,209

F1 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

F2 · price: The price reported is a weighted average price. These shares were sold as part of a block trade in multiple transactions at prices ranging from $1.37 to $1.51, inclusive. The Reporting Person will provide to the staff of the Securities and Exchange Commission, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price with regard to the block trade.

SEC source: 0000950170-25-083336 · ownership.xml · nonDerivative · entry 2

Mirza Mansoor Raza · CIK 0001588389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,161

F2 · shares: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units ("RSUs"). The sale is mandated by the Issuer's election to require the satisfaction of tax withholding obligations to be funded by "sell to cover" transactions and does not represent a discretionary transaction by the Reporting Person.

SEC source: 0000950170-25-083337 · ownership.xml · derivative · entry 2

Phillips Joshua · CIK 0001871555 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 25,000 shares

Expires 2035-06-05

F2 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025.

SEC source: 0000950170-25-083337 · ownership.xml · nonDerivative · entry 1

Phillips Joshua · CIK 0001871555 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 57,005

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0000950170-25-083334 · ownership.xml · derivative · entry 2

CRITCHFIELD GREGORY C · CIK 0001191080 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 25,000 shares

Expires 2035-06-05

F2 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025.

SEC source: 0000950170-25-083334 · ownership.xml · nonDerivative · entry 1

CRITCHFIELD GREGORY C · CIK 0001191080 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 822,866

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0000950170-25-083333 · ownership.xml · derivative · entry 2

Lawrence Sandra AJ · CIK 0001306386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 25,000 shares

Expires 2035-06-05

F2 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025.

SEC source: 0000950170-25-083333 · ownership.xml · nonDerivative · entry 1

Lawrence Sandra AJ · CIK 0001306386 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,713

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0000950170-25-083338 · ownership.xml · derivative · entry 2

Trimble Ryan · CIK 0001871513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 25,000 shares

Expires 2035-06-05

F2 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025.

SEC source: 0000950170-25-083338 · ownership.xml · nonDerivative · entry 1

Trimble Ryan · CIK 0001871513 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,713

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0000950170-25-083336 · ownership.xml · derivative · entry 3

Mirza Mansoor Raza · CIK 0001588389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 25,000 shares

Expires 2035-06-05

F3 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025.

SEC source: 0000950170-25-083336 · ownership.xml · nonDerivative · entry 1

Mirza Mansoor Raza · CIK 0001588389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,268

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer.

SEC source: 0000950170-25-083335 · ownership.xml · derivative · entry 2

Kamdar Kim P. · CIK 0001535065 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Class A Common Stock · 25,000 shares

Expires 2035-06-05

F2 · derivative.exercise_date: Consists of stock options granted pursuant to Sera Prognostics, Inc.'s Non-Employee Director Compensation Policy and its 2021 Equity Incentive Plan. These stock options vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025.

SEC source: 0000950170-25-083335 · ownership.xml · nonDerivative · entry 1

Kamdar Kim P. · CIK 0001535065 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,342

F1 · shares: Each share is represented by a restricted stock unit ("RSU"). These RSUs vest over one year as follows: 1/12 of the original grant amount vests in monthly installments for one year following the vesting commencement date, which is June 5, 2025, subject to the Reporting Person continuing to provide services to the issuer.