CERT insider transactions

Chief Human Resources Officer Anhalt Rona converted options into 7,147 shares and covered exercise/tax liability with 2,241 shares, increasing direct ownership by 41% to 16,789 units (SEC Form 4) (withholding tax)

SVP and General Counsel Corcoran Daniel converted options into 22,830 shares and covered exercise/tax liability with 12,103 shares, increasing direct ownership by 50% to 32,046 units (SEC Form 4) (for tax liability)

Director Bedi Arjun converted options into 5,547 shares (SEC Form 4)

Chairman Broshy Eran converted options into 15,757 shares, increasing direct ownership by 45% to 50,708 units (SEC Form 4)

Chief Financial Officer Reynders John V W converted options into 15,757 shares, increasing direct ownership by 147% to 26,466 units (SEC Form 4)

SEC Form 4 filed by Certara Inc.

Director Killefer Nancy converted options into 15,757 shares, increasing direct ownership by 44% to 51,846 units (SEC Form 4)

Chairman Cashman James E Iii converted options into 15,757 shares, increasing direct ownership by 3% to 484,197 units (SEC Form 4)

SEC Form 4 filed by PRESIDENT, PREDICTIVE TECH Aspbury Robert

SEC Form 4 filed by PRESIDENT, CHIEF COMMERCAL OFF Pedersen Leif E

SEC Form 4 filed by Chief Human Resources Officer Anhalt Rona

Chief Executive Officer Resnick Jon Matthew converted options into 59,766 shares and covered exercise/tax liability with 24,377 shares (SEC Form 4) (withholding tax)

SEC Form 4 filed by SVP and General Counsel Corcoran Daniel

SEC Form 4 filed by Chief Financial Officer Gallagher John E

SEC Form 4 filed by Pedersen Leif E

SEC Form 4 filed by Mckemey Adrian

SEC Form 4 filed by Corcoran Daniel

SEC Form 4 filed by Gallagher John E

SEC Form 4 filed by Aspbury Robert

SEC Form 4 filed by Anhalt Rona

SEC Form 4 filed by Director Bedi Arjun

SEC Form 3 filed by new insider Bedi Arjun

SEC Form 3 filed by new insider Resnick Jon Matthew

CHIEF EXECUTIVE OFFICER Feehery William F bought $200,000 worth of shares (24,096 units at $8.30), increasing direct ownership by 1% to 2,360,769 units (SEC Form 4)

PRESIDENT, CHIEF COMMERCAL OFF Pedersen Leif E sold $559,366 worth of shares (51,224 units at $10.92), decreasing direct ownership by 41% to 73,979 units (SEC Form 4)

Chief Human Resources Officer Anhalt Rona converted options into 7,146 shares and covered exercise/tax liability with 1,965 shares (SEC Form 4)

SVP and General Counsel Corcoran Daniel converted options into 7,940 shares, covered exercise/tax liability with 6,607 shares and converted options into 14,888 units of Comon Stock (SEC Form 4)

Director Walsh Matthew M converted options into 11,928 shares, increasing direct ownership by 6% to 197,559 units (SEC Form 4)

Director Reynders John V W converted options into 10,709 shares (SEC Form 4)

Director Killefer Nancy converted options into 11,928 shares, increasing direct ownership by 49% to 36,089 units (SEC Form 4)

Director Crane Rosemary A converted options into 11,928 shares, increasing direct ownership by 66% to 29,915 units (SEC Form 4)

Director Collins Cynthia converted options into 11,928 shares, increasing direct ownership by 49% to 36,089 units (SEC Form 4)

Chairman Cashman James E Iii converted options into 11,928 shares, increasing direct ownership by 3% to 468,440 units (SEC Form 4)

Chairman Broshy Eran converted options into 11,928 shares, increasing direct ownership by 52% to 34,951 units (SEC Form 4)

SEC Form 4 filed by Chief Human Resources Officer Anhalt Rona

SEC Form 4 filed by SVP and General Counsel Corcoran Daniel

SEC Form 4 filed by PRESIDENT, CHIEF COMMERCAL OFF Pedersen Leif E

SEC Form 4 filed by President, Drug Dev. Solutions Mckemey Adrian

SEC Form 4 filed by Chief Financial Officer Gallagher John E

SEC Form 4 filed by PRESIDENT, PREDICTIVE TECH Aspbury Robert

SEC Form 4 filed by CHIEF EXECUTIVE OFFICER Feehery William F

PRESIDENT, PREDICTIVE TECH Aspbury Robert was granted 7,082 shares, covered exercise/tax liability with 15,846 shares and converted options into 26,626 shares, increasing direct ownership by 6% to 307,176 units (SEC Form 4)

PRESIDENT, CHIEF COMMERCAL OFF Pedersen Leif E was granted 7,082 shares, covered exercise/tax liability with 8,209 shares and converted options into 26,626 shares, increasing direct ownership by 26% to 125,203 units (SEC Form 4)

PRESIDENT, CHIEF COMMERCAL OFF Gallagher John E converted options into 42,486 shares and covered exercise/tax liability with 14,176 shares, increasing direct ownership by 155% to 46,528 units (SEC Form 4)

CHIEF EXECUTIVE OFFICER Feehery William F converted options into 111,393 shares, was granted 29,960 shares and covered exercise/tax liability with 53,834 shares, increasing direct ownership by 4% to 2,336,673 units (SEC Form 4)

SEC Form 3 filed by new insider Mckemey Adrian

SEC Form 4 filed by Director Reynders John V W

SEC Form 3 filed by new insider Reynders John V W

PRESIDENT, DRUG DEV SOLUTIONS Smith Patrick F sold $59,661 worth of shares (5,409 units at $11.03), decreasing direct ownership by 10% to 50,091 units (SEC Form 4)

PRESIDENT, DRUG DEV SOLUTIONS Smith Patrick F converted options into 7,151 shares and covered exercise/tax liability with 1,742 shares, increasing direct ownership by 11% to 55,500 units (SEC Form 4)

PRESIDENT, CHIEF COMMERCAL OFF Pedersen Leif E sold $578,319 worth of shares (51,224 units at $11.29), decreasing direct ownership by 34% to 99,704 units (SEC Form 4)

PRESIDENT, SCIENTIFIC SOFTWARE Aspbury Robert covered exercise/tax liability with 862 shares, decreasing direct ownership by 0.30% to 289,314 units (SEC Form 4)

SEC Form 4 filed by Corcoran Daniel

SEC Form 4 filed by Anhalt Rona

SEC Form 3 filed by new insider Anhalt Rona

SEC Form 3 filed by new insider Corcoran Daniel

Walsh Matthew M converted options into 8,663 shares, increasing direct ownership by 5% to 185,631 units (SEC Form 4)

Killefer Nancy converted options into 8,663 shares, increasing direct ownership by 56% to 24,161 units (SEC Form 4)

Crane Rosemary A converted options into 8,663 shares, increasing direct ownership by 93% to 17,987 units (SEC Form 4)

Collins Cynthia converted options into 8,663 shares, increasing direct ownership by 56% to 24,161 units (SEC Form 4)