CERT

SEC source: 0001415889-24-015160 · form4-06032024_080612.xml · derivative · entry 1

Corcoran Daniel · CIK 0002025227 · SVP and General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,822

Underlying: Common Stock · 23,822 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on June 1, 2024, under the Certara, Inc. 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on June 1, 2025, June 1, 2026, and June 1, 2027.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on June 1, 2024, under the Certara, Inc. 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on June 1, 2025, June 1, 2026, and June 1, 2027.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on June 1, 2024, under the Certara, Inc. 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on June 1, 2025, June 1, 2026, and June 1, 2027.

SEC source: 0001415889-24-015159 · form4-06032024_080619.xml · derivative · entry 1

Anhalt Rona · CIK 0002025139 · Chief Human Resources Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,440

Underlying: Common Stock · 21,440 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on June 1, 2024, under the Certara, Inc. 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on June 1, 2025, June 1, 2026 and June 1, 2027.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on June 1, 2024, under the Certara, Inc. 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on June 1, 2025, June 1, 2026 and June 1, 2027.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on June 1, 2024, under the Certara, Inc. 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on June 1, 2025, June 1, 2026 and June 1, 2027.

SEC source: 0001415889-24-014283 · form4-05232024_080513.xml · derivative · entry 3

Crane Rosemary A · CIK 0001443343 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,928

Underlying: Common Stock · 11,928 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.exercise_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.expiration_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

SEC source: 0001415889-24-014283 · form4-05232024_080513.xml · derivative · entry 2

Crane Rosemary A · CIK 0001443343 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,663 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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014283 · form4-05232024_080513.xml · nonDerivative · entry 1

Crane Rosemary A · CIK 0001443343 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,987

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

F1 · price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014263 · form4-05232024_080526.xml · derivative · entry 3

Collins Cynthia · CIK 0001405692 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,928

Underlying: Common Stock · 11,928 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.exercise_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.expiration_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

SEC source: 0001415889-24-014263 · form4-05232024_080526.xml · derivative · entry 2

Collins Cynthia · CIK 0001405692 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,663 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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014263 · form4-05232024_080526.xml · nonDerivative · entry 1

Collins Cynthia · CIK 0001405692 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,161

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

F1 · price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014298 · form4-05232024_080552.xml · derivative · entry 3

WALSH MATTHEW M · CIK 0001269428 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,928

Underlying: Common Stock · 11,928 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.exercise_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.expiration_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

SEC source: 0001415889-24-014298 · form4-05232024_080552.xml · derivative · entry 2

WALSH MATTHEW M · CIK 0001269428 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,663 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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014298 · form4-05232024_080552.xml · nonDerivative · entry 1

WALSH MATTHEW M · CIK 0001269428 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,631

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

F1 · price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014253 · form4-05232024_080510.xml · derivative · entry 3

CASHMAN JAMES E III · CIK 0001199440 · Director · Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,928

Underlying: Common Stock · 11,928 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.exercise_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.expiration_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

SEC source: 0001415889-24-014253 · form4-05232024_080510.xml · derivative · entry 2

CASHMAN JAMES E III · CIK 0001199440 · Director · Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,663 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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014253 · form4-05232024_080510.xml · nonDerivative · entry 1

CASHMAN JAMES E III · CIK 0001199440 · Director · Chairman

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 456,512

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

F1 · price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014248 · form4-05232024_080549.xml · derivative · entry 3

BROSHY ERAN · CIK 0001256230 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,928

Underlying: Common Stock · 11,928 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.exercise_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.expiration_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

SEC source: 0001415889-24-014248 · form4-05232024_080549.xml · derivative · entry 2

BROSHY ERAN · CIK 0001256230 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,663 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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014248 · form4-05232024_080549.xml · nonDerivative · entry 1

BROSHY ERAN · CIK 0001256230 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,023

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

F1 · price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014288 · form4-05232024_080517.xml · derivative · entry 3

Killefer Nancy · CIK 0001584637 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,928

Underlying: Common Stock · 11,928 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.exercise_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

F2 · derivative.expiration_date: Each RSU was granted on May 21, 2024, under the Incentive Plan that entitles the reporting person to receive one share of issuer's common stock per RSU. The RSUs vest on the earlier of the one-year anniversary of the date of grant or the date of the issuer's next annual meeting.

SEC source: 0001415889-24-014288 · form4-05232024_080517.xml · derivative · entry 2

Killefer Nancy · CIK 0001584637 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 8,663 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.

F1 · derivative.exercise_price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.exercise_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

F1 · derivative.expiration_date: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-014288 · form4-05232024_080517.xml · nonDerivative · entry 1

Killefer Nancy · CIK 0001584637 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,161

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

F1 · price: Each restricted stock unit ("RSU") was granted on May 23, 2023, under Certara, Inc.'s 2020 Incentive Plan ("Incentive Plan") entitling the reporting person to receive one share of the issuer's common stock per RSU. The RSUs vested and were converted to common stock on May 21, 2024, the day of the issuer's annual meeting.

SEC source: 0001415889-24-010291 · form4-04042024_080424.xml · nonDerivative · entry 6

SMITH PATRICK F · CIK 0001890360 · PRESIDENT, DRUG DEV SOLUTIONS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,091

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2023.

F7 · price: This transaction was executed in multiple trades at prices ranging from $17.70 to $17.85. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001415889-24-010291 · form4-04042024_080424.xml · nonDerivative · entry 5

SMITH PATRICK F · CIK 0001890360 · PRESIDENT, DRUG DEV SOLUTIONS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 50,513

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2023.

F6 · price: This transaction was executed in multiple trades at prices ranging from $16.50 to $17.11. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001415889-24-010291 · form4-04042024_080424.xml · nonDerivative · entry 4

SMITH PATRICK F · CIK 0001890360 · PRESIDENT, DRUG DEV SOLUTIONS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,253

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2023.

F5 · price: This transaction was executed in multiple trades at prices ranging from $17.53 to $17.74. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001415889-24-010291 · form4-04042024_080424.xml · nonDerivative · entry 3

SMITH PATRICK F · CIK 0001890360 · PRESIDENT, DRUG DEV SOLUTIONS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 55,581

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2023.

F4 · price: This transaction was executed in multiple trades at prices ranging from $16.49 to $16.96. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001415889-24-010291 · form4-04042024_080424.xml · nonDerivative · entry 2

SMITH PATRICK F · CIK 0001890360 · PRESIDENT, DRUG DEV SOLUTIONS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 58,605

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2023.

F3 · price: This transaction was executed in multiple trades at prices ranging from $17.53 to $17.85. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001415889-24-010291 · form4-04042024_080424.xml · nonDerivative · entry 1

SMITH PATRICK F · CIK 0001890360 · PRESIDENT, DRUG DEV SOLUTIONS

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 59,254

F1 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 20, 2023.

F2 · price: This transaction was executed in multiple trades at prices ranging from $16.50 to $16.98. The price reported above reflects the weighted average sale price. The Reporting Person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

SEC source: 0001415889-24-010068 · form4-04032024_090423.xml · derivative · entry 7

SHERMAN NICOLETTE D · CIK 0001872604 · CHIEF HUMAN RESOURCES OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,190

Underlying: Common Stock · 15,190 shares

Expires 2027-04-01

F5 · derivative.exercise_price: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027.

F5 · derivative.exercise_date: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027.

SEC source: 0001415889-24-010068 · form4-04032024_090423.xml · derivative · entry 6

SHERMAN NICOLETTE D · CIK 0001872604 · CHIEF HUMAN RESOURCES OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,456

Underlying: Common Stock · 4,228 shares

Expires 2026-04-01

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 was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

F4 · derivative.exercise_date: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

SEC source: 0001415889-24-010068 · form4-04032024_090423.xml · derivative · entry 5

SHERMAN NICOLETTE D · CIK 0001872604 · CHIEF HUMAN RESOURCES OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,991

Underlying: Common Stock · 3,991 shares

Expires 2025-04-01

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

F1 · derivative.exercise_price: Each RSU was granted on April 1, 2022, under the Certara, Inc. ("Certara") 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

F1 · derivative.exercise_date: Each RSU was granted on April 1, 2022, under the Certara, Inc. ("Certara") 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

SEC source: 0001415889-24-010068 · form4-04032024_090423.xml · nonDerivative · entry 4

SHERMAN NICOLETTE D · CIK 0001872604 · CHIEF HUMAN RESOURCES OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,358

F3 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1 and 4, exempt under Rule 16b-3.

F2 · balance_after: The total reported in Column 5 includes 3,369 RSUs which was previously reported in Table 1 of Form 4.

SEC source: 0001415889-24-010068 · form4-04032024_090423.xml · nonDerivative · entry 3

SHERMAN NICOLETTE D · CIK 0001872604 · CHIEF HUMAN RESOURCES OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,684

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 · price: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

F2 · balance_after: The total reported in Column 5 includes 3,369 RSUs which was previously reported in Table 1 of Form 4.

SEC source: 0001415889-24-010068 · form4-04032024_090423.xml · nonDerivative · entry 2

SHERMAN NICOLETTE D · CIK 0001872604 · CHIEF HUMAN RESOURCES OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,456

F3 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1 and 4, exempt under Rule 16b-3.

F2 · balance_after: The total reported in Column 5 includes 3,369 RSUs which was previously reported in Table 1 of Form 4.

SEC source: 0001415889-24-010068 · form4-04032024_090423.xml · nonDerivative · entry 1

SHERMAN NICOLETTE D · CIK 0001872604 · CHIEF HUMAN RESOURCES OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,708

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

F1 · price: Each RSU was granted on April 1, 2022, under the Certara, Inc. ("Certara") 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

F2 · balance_after: The total reported in Column 5 includes 3,369 RSUs which was previously reported in Table 1 of Form 4.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · derivative · entry 8

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,981

Underlying: Common Stock · 120,981 shares

Expires 2027-04-01

F6 · derivative.exercise_price: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027.

F6 · derivative.exercise_date: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · derivative · entry 7

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 66,440

Underlying: Common Stock · 33,219 shares

Expires 2026-04-01

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

F5 · derivative.exercise_price: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

F5 · derivative.exercise_date: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · derivative · entry 6

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,580

Underlying: Common Stock · 36,580 shares

Expires 2025-04-01

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 was granted on April 1, 2022, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

F4 · derivative.exercise_date: Each RSU was granted on April 1, 2022, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · nonDerivative · entry 5

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,249,154

F2 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1, 4, and 5, exempt under Rule 16b-3.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · nonDerivative · entry 4

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,263,269

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

F5 · price: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · nonDerivative · entry 3

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,230,050

F2 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1, 4, and 5, exempt under Rule 16b-3.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · nonDerivative · entry 2

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,245,593

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 · price: Each RSU was granted on April 1, 2022, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

SEC source: 0001415889-24-010031 · form4-04032024_080419.xml · nonDerivative · entry 1

Feehery William F · CIK 0001543193 · Director · CHIEF EXECUTIVE OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,209,013

F1 · kind: Each RSU was granted on April 1, 2021, under the Certara, Inc. ("Certara") 2020 Incentive Plan (the "2020 Incentive Plan") and represents the right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2022. One-third of the RSUs vested and were settled on March 31, 2023. The remaining one-third of the RSUs vested and were settled on April 1, 2024.

F2 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1, 4, and 5, exempt under Rule 16b-3.

F3 · balance_after: The total reported in Column 5 includes 30,525 RSUs which was previously reported in Table 1 of Form 4.

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · derivative · entry 8

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,381

Underlying: Common Stock · 30,381 shares

Expires 2027-04-01

F6 · derivative.exercise_price: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027

F6 · derivative.exercise_date: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · derivative · entry 7

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,704

Underlying: Common Stock · 7,852 shares

Expires 2026-04-01

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

F5 · derivative.exercise_price: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

F5 · derivative.exercise_date: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · derivative · entry 6

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,647

Underlying: Common Stock · 8,646 shares

Expires 2025-04-01

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 was granted on April 1, 2022, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

F4 · derivative.exercise_date: Each RSU was granted on April 1, 2022, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · nonDerivative · entry 5

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,928

F2 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1, 4, and 5, exempt under Rule 16b-3.

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · nonDerivative · entry 4

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,840

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

F5 · price: Each RSU was granted on April 1, 2023, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2024. The remaining two-thirds of the RSUs are scheduled to vest and settle in equal parts on April 1, 2025 and April 1, 2026.

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · nonDerivative · entry 3

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 144,988

F2 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1, 4, and 5, exempt under Rule 16b-3.

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · nonDerivative · entry 2

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 147,094

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 · price: Each RSU was granted on April 1, 2022, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on March 31, 2023. One-third of the RSUs vested and were settled on April 1, 2024. The remaining one-third of the RSUs are scheduled to vest and settle on April 1, 2025.

SEC source: 0001415889-24-010065 · form4-04032024_090446.xml · nonDerivative · entry 1

Pedersen Leif E · CIK 0001559712 · PRESIDENT, CHIEF COMMERCAL OFF

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 138,448

F1 · kind: Each RSU was granted on April 1, 2021, under the Certara, Inc. ("Certara") 2020 Incentive Plan (the "2020 Incentive Plan") and represents the right to receive one share of common stock or the cash equivalent. One-third of the RSUs vested and were settled on April 1, 2022. One-third of the RSUs vested and were settled on March 31, 2023. The remaining one-third of the RSUs vested and were settled on April 1, 2024.

F2 · shares: Represents RSUs of Certara withheld to satisfy tax withholding obligations in connection with the vesting of RSUs described in footnotes, 1, 4, and 5, exempt under Rule 16b-3.

F3 · balance_after: The total reported in Column 5 includes 7,937 RSUs which was previously reported in Table 1 of Form 4.

SEC source: 0001415889-24-010062 · form4-04032024_090409.xml · derivative · entry 7

Gallagher John E · CIK 0001628991 · CHIEF FINANCIAL OFFICER

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,571

Underlying: Common Stock · 45,571 shares

Expires 2027-04-01

F4 · derivative.exercise_price: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027.

F4 · derivative.exercise_date: Each RSU was granted on April 1, 2024, under the 2020 Incentive Plan and represents a right to receive one share of common stock or the cash equivalent. The RSUs will vest and settle in three equal installments on April 1, 2025, April 1, 2026 and April 1, 2027.