GERN

SEC source: 0001492256-26-000009 · form4-10012026_041003.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 212,161

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2026 of $1.23 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2026 of $1.23 per share.

SEC source: 0001492256-26-000007 · form4-07012026_090708.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 205,810

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on June 30, 2026 of $1.28 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on June 30, 2026 of $1.28 per share.

SEC source: 0001492256-26-000006 · form4-05262026_070511.xml · derivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 220,000

Underlying: Common Stock · 220,000 shares

Expires 2036-05-19

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0001744662-26-000006 · form4-05262026_070508.xml · derivative · entry 1

O'Farrell Elizabeth G. · CIK 0001744662 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 220,000

Underlying: Common Stock · 220,000 shares

Expires 2036-05-19

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0001553389-26-000002 · form4-05262026_070505.xml · derivative · entry 1

Molineaux Susan · CIK 0001553389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 220,000

Underlying: Common Stock · 220,000 shares

Expires 2036-05-19

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0001688712-26-000003 · form4-05262026_070502.xml · derivative · entry 1

Bir Dawn Carter · CIK 0001688712 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 220,000

Underlying: Common Stock · 220,000 shares

Expires 2036-05-19

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0001944633-26-000002 · form4-05262026_070503.xml · derivative · entry 1

McDonald John F · CIK 0001944633 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 220,000

Underlying: Common Stock · 220,000 shares

Expires 2036-05-19

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0001748392-26-000005 · form4-04152026_120410.xml · derivative · entry 1

Williams Timothy · CIK 0001748392 · EVP and Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,500,000

Underlying: Common Stock · 2,500,000 shares

Expires 2036-04-12

F1 · derivative.exercise_date: This option vests as follows: 312,500 shares underlying the option will vest on October 13, 2026; and the remaining shares will vest over the following 42 months in equal installments, provided that the Reporting Person provides continuous service to the Issuer on each such vesting date.

SEC source: 0001492256-26-000004 · form4-04012026_040401.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 199,707

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on March 31, 2026 of $1.49 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on March 31, 2026 of $1.49 per share.

SEC source: 0002014509-26-000003 · form4-03262026_090305.xml · derivative · entry 1

Chinoporos Constantine · CIK 0002014509 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 270,000

Underlying: Common Stock · 270,000 shares

Expires 2036-03-24

F1 · derivative.exercise_date: The option shall vest and become exercisable in three equal annual installments starting on March 25, 2027, subject to the Reporting Person's continuous service (as defined in the Issuer's 2018 Equity Incentive Plan) with the Issuer through each such vesting date.

SEC source: 0001445710-26-000004 · form4-03262026_090309.xml · derivative · entry 1

Andrews Patricia S · CIK 0001445710 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 270,000

Underlying: Common Stock · 270,000 shares

Expires 2036-03-24

F1 · derivative.exercise_date: The option shall vest and become exercisable in three equal annual installments starting on March 25, 2027, subject to the Reporting Person's continuous service (as defined in the Issuer's 2018 Equity Incentive Plan) with the Issuer through each such vesting date.

SEC source: 0001755098-26-000001 · form4-02192026_110201.xml · derivative · entry 4

ROBERTSON MICHELLE · CIK 0001755098 · EVP, CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,500

Underlying: Common Stock · 27,500 shares

Expires not disclosed

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

F4 · derivative.exercise_price: Each RSU represents the contingent right to receive one share of the Issuer's common stock.

F5 · derivative.exercise_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

F5 · derivative.expiration_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0001755098-26-000001 · form4-02192026_110201.xml · nonDerivative · entry 2

ROBERTSON MICHELLE · CIK 0001755098 · EVP, CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,645

F2 · kind: Represents shares of common stock sold to cover tax withholding and remittance obligations in connection with the vesting of RSUs pursuant to mandatory "sell to cover" policies maintained by the Issuer and provisions contained in the Reporting Person's applicable RSU agreement, and does not represent a discretionary sale by the Reporting Person.

SEC source: 0001755098-26-000001 · form4-02192026_110201.xml · nonDerivative · entry 1

ROBERTSON MICHELLE · CIK 0001755098 · EVP, CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,500

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 · security: Shares of common stock acquired upon the vesting of restricted stock units ("RSUs").

SEC source: 0001780247-26-000001 · form4-02192026_110212.xml · derivative · entry 1

Eid Joseph · CIK 0001780247 · EVP, R&D; Chief Medical Office

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,220,000

Underlying: Common Stock · 2,220,000 shares

Expires 2036-02-16

F1 · derivative.exercise_date: The option vests in 48 equal monthly installments commencing on March 17, 2026, provided that the Reporting Person provides continuous service to the Issuer on each such vesting date.

SEC source: 0001755098-26-000001 · form4-02192026_110201.xml · derivative · entry 3

ROBERTSON MICHELLE · CIK 0001755098 · EVP, CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,660,000

Underlying: Common Stock · 1,660,000 shares

Expires 2036-02-16

F3 · derivative.exercise_date: The option vests in 48 equal monthly installments commencing on March 17, 2026, provided that the Reporting Person provides continuous service to the Issuer on each such vesting date.

SEC source: 0001492256-26-000003 · form4-01052026_050107.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 194,464

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on December 31, 2025 of $1.32 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on December 31, 2025 of $1.32 per share.

SEC source: 0001628280-25-045549 · wk-form4_1760996100.xml · derivative · entry 1

ElNawawi Ahmed · CIK 0002091794 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,000,000

Underlying: Common Stock · 3,000,000 shares

Expires 2035-10-19

F1 · derivative.exercise_date: The options vest as follows: 375,000 shares on April 20, 2026, the remaining 2,625,000 shares in a series of 42 equal monthly installments commencing April 20, 2026, provided the optionee continues to provide services to the Company.

SEC source: 0001628280-25-043459 · wk-form4_1759351083.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 188,546

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2025 of $1.37 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2025 of $1.37 per share.

SEC source: 0000886744-25-000062 · wk-form4_1754684133.xml · derivative · entry 2

Semerjian Harout · CIK 0001809747 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,000,000

Underlying: Common Stock · 4,000,000 shares

Expires 2035-08-06

F2 · derivative.exercise_date: The options vest as follows: 1,000,000 shares on August 7, 2026, the remaining 3,000,000 shares in a series of 36 equal monthly installments commencing August 7, 2026, provided the optionee continues to provide services to the Company.

SEC source: 0000886744-25-000062 · wk-form4_1754684133.xml · derivative · entry 1

Semerjian Harout · CIK 0001809747 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,000,000

Underlying: Common Stock · 7,000,000 shares

Expires 2035-08-06

F1 · derivative.exercise_date: The options vest as follows: 875,000 shares on February 7, 2026, the remaining 6,125,000 shares in a series of 42 equal monthly installments commencing February 7, 2026, provided the optionee continues to provide services to the Company.

SEC source: 0000886744-25-000038 · wk-form4_1751403231.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,844

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on June 30, 2025 of $1.41 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on June 30, 2025 of $1.41 per share.

SEC source: 0000886744-25-000027 · wk-form4_1747948046.xml · derivative · entry 1

Aggarwal Gaurav · CIK 0001551965 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2035-05-20

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0000886744-25-000026 · wk-form4_1747947992.xml · derivative · entry 1

Bir Dawn Carter · CIK 0001688712 · Director · Interim President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2035-05-20

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0000886744-25-000025 · wk-form4_1747947876.xml · derivative · entry 1

LAWLIS V BRYAN · CIK 0001247681 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2035-05-20

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0000886744-25-000024 · wk-form4_1747947806.xml · derivative · entry 1

McDonald John F · CIK 0001944633 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2035-05-20

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0000886744-25-000023 · wk-form4_1747947757.xml · derivative · entry 1

Molineaux Susan · CIK 0001553389 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2035-05-20

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0000886744-25-000022 · wk-form4_1747947705.xml · derivative · entry 1

O'Farrell Elizabeth G. · CIK 0001744662 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2035-05-20

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0000886744-25-000021 · wk-form4_1747947631.xml · derivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,000

Underlying: Common Stock · 180,000 shares

Expires 2035-05-20

F1 · derivative.exercise_date: This option will vest and become exercisable as to 100% of the shares of common stock subject to such option on the earlier of (i) the date of the next annual meeting of the Issuer's stockholders or (ii) the first anniversary of the date of grant of such option, subject to the Reporting Person's continuous service with the Issuer through such dates.

SEC source: 0000886744-25-000013 · wk-form4_1747167635.xml · nonDerivative · entry 1

LAWLIS V BRYAN · CIK 0001247681 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,300

SEC source: 0000950170-25-049594 · ownership.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,304

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on March 31, 2025 of $1.59 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on March 31, 2025 of $1.59 per share.

SEC source: 0000950170-25-030330 · ownership.xml · nonDerivative · entry 1

Samuels Scott Alan · CIK 0001987259 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,682

F1 · kind: The reported transaction represents the open market purchase of 15,000 shares at an executed price of $1.61 per share.

F2 · balance_after: The number of securities reported reflects the open market purchase of 15,000 shares and acquisition on June 30, 2024 of 7,432 shares and on December 31, 2024 of 4,250 shares of Geron common stock pursuant to the Employee Stock.

SEC source: 0000950170-25-030329 · ownership.xml · nonDerivative · entry 1

SCARLETT JOHN A · CIK 0001270928 · Director · Chairman, President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,500

F1 · kind: The reported transaction represents the open market purchase of 12,500 shares at an executed price of $1.765 per share.

SEC source: 0000950170-25-030327 · ownership.xml · nonDerivative · entry 1

Ziegler James · CIK 0002035113 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,000

F1 · kind: The reported transaction represents the open market purchase of 100,000 shares at an executed price of $1.60 per share.

SEC source: 0000950170-25-024132 · ownership.xml · derivative · entry 2

SCARLETT JOHN A · CIK 0001270928 · Director · Chairman, President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 410,000

Underlying: Common Stock · 410,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

F3 · derivative.expiration_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024132 · ownership.xml · derivative · entry 1

SCARLETT JOHN A · CIK 0001270928 · Director · Chairman, President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,457,000

Underlying: Common Stock · 2,457,000 shares

Expires 2035-02-17

F1 · derivative.exercise_date: This option was granted on February 18, 2025 and vests in 48 consecutive equal monthly installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024130 · ownership.xml · derivative · entry 2

Ziegler James · CIK 0002035113 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,000

Underlying: Common Stock · 89,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

F3 · derivative.expiration_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024130 · ownership.xml · derivative · entry 1

Ziegler James · CIK 0002035113 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 529,000

Underlying: Common Stock · 529,000 shares

Expires 2035-02-17

F1 · derivative.exercise_date: This option was granted on February 18, 2025 and vests as to 1/8th of the shares underlying the option on the sixth-month anniversary of the Reporting Person's date of hire of September 9, 2024, and as to the remaining shares underlying the option in 42 consecutive equal monthly installments thereafter, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024131 · ownership.xml · derivative · entry 2

Samuels Scott Alan · CIK 0001987259 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,000

Underlying: Common Stock · 104,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

F3 · derivative.expiration_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024131 · ownership.xml · derivative · entry 1

Samuels Scott Alan · CIK 0001987259 · EVP, Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 621,000

Underlying: Common Stock · 621,000 shares

Expires 2035-02-17

F1 · derivative.exercise_date: This option was granted on February 18, 2025 and vests in 48 consecutive equal monthly installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024133 · ownership.xml · derivative · entry 2

GRETHLEIN ANDREW J · CIK 0001270921 · EVP, Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,000

Underlying: Common Stock · 140,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

F3 · derivative.expiration_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024133 · ownership.xml · derivative · entry 1

GRETHLEIN ANDREW J · CIK 0001270921 · EVP, Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 839,000

Underlying: Common Stock · 839,000 shares

Expires 2035-02-17

F1 · derivative.exercise_date: This option was granted on February 18, 2025 and vests in 48 consecutive equal monthly installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024129 · ownership.xml · derivative · entry 2

ROBERTSON MICHELLE · CIK 0001755098 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,000

Underlying: Common Stock · 110,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's common stock.

F3 · derivative.exercise_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

F3 · derivative.expiration_date: The RSUs were granted on February 18, 2025 and vest in four consecutive equal annual installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-024129 · ownership.xml · derivative · entry 1

ROBERTSON MICHELLE · CIK 0001755098 · EVP, Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 656,000

Underlying: Common Stock · 656,000 shares

Expires 2035-02-17

F1 · derivative.exercise_date: This option was granted on February 18, 2025 and vests in 48 consecutive equal monthly installments from the date of grant, provided the Reporting Person continues to provide services to the Issuer through the applicable vesting date.

SEC source: 0000950170-25-000409 · ownership.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,391

F1 · kind: Shares issued in lieu of cash payment for quarterly Board of Directors retainer fee. Number of shares issued based on the closing price of Geron common stock on December 31, 2024 of $3.54 per share.

F1 · price: Shares issued in lieu of cash payment for quarterly Board of Directors retainer fee. Number of shares issued based on the closing price of Geron common stock on December 31, 2024 of $3.54 per share.

SEC source: 0000950170-25-049554 · ownership.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 172,391

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on December 31, 2024 of $3.54 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on December 31, 2024 of $3.54 per share.

SEC source: 0000950170-24-125325 · ownership.xml · derivative · entry 1

Eid Joseph · CIK 0001780247 · EVP, Research and Development

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,500,000

Underlying: Common Stock · 2,500,000 shares

Expires 2034-11-10

F1 · derivative.exercise_date: The options vest as follows: 312,500 shares on May 11, 2025, the remaining 2,187,500 shares in series of 42 equal monthly installments commencing May 11, 2025, provided the optionee continues to provide services to the Company.

SEC source: 0000950170-24-110796 · ownership.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,185

F1 · kind: Shares issued in lieu of cash payment for quarterly Board of Directors retainer fee. Number of shares issued based on close price of Geron common stock on September 30, 2024 of $4.54 per share.

F1 · price: Shares issued in lieu of cash payment for quarterly Board of Directors retainer fee. Number of shares issued based on close price of Geron common stock on September 30, 2024 of $4.54 per share.

SEC source: 0000950170-25-049544 · ownership.xml · nonDerivative · entry 1

Spiegel Robert J. · CIK 0001492256 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 170,185

F1 · kind: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2024 of $4.54 per share.

F1 · price: Shares issued in lieu of cash compensation for quarterly board of directors' retainer and committee fees. Number of shares issued based on the closing price of the Issuer's common stock on September 30, 2024 of $4.54 per share.

SEC source: 0000950170-24-104788 · ownership.xml · derivative · entry 1

Ziegler James · CIK 0002035113 · EVP, Chief Commercial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,600,000

Underlying: Common Stock · 1,600,000 shares

Expires 2034-09-08

F1 · derivative.exercise_date: 1. The options vest as follows: 200,000 shares on March 9, 2025, the remaining 1,400,000 shares in series of 42 equal monthly installments commencing March 9, 2025, provided the optionee continues to provide services to the Company.