CERT

SEC source: 0001104659-21-143565 · tm2133816-1_4seq1.xml · nonDerivative · entry 1

EQT Avatar Parent L.P. · CIK 0001715533 · 10% owner

EQT Avatar Parent GP LLC · CIK 0001833933 · 10% owner

EQT Fund Management S.a r.l. · CIK 0001834239 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by EQT Avatar Parent L.P.

Disclosed balance after: 37,458,939

F1 · price: This amount represents the $31.00 public offering price per share of common stock of Certara, Inc., less the underwriting discount of $1.259 per share.

F2 · ownership.nature: Consists of shares of common stock held directly by EQT Avatar Parent L.P. ("EQT Investor"). EQT Avatar Parent GP LLC ("Avatar Parent GP") is the general partner of the EQT Investor. Several investment vehicles collectively make up the fund known as "EQT VII." EQT VII owns 100% of the membership interests in Avatar Parent GP. EQT Fund Management S.a r.l. ("EFMS") has exclusive responsibility for the management and control of the business and affairs of investment vehicles which constitute the majority of the total commitments to EQT VII. As such, EFMS has the power to control Avatar Parent GP's voting and investment decisions and may be deemed to have beneficial ownership of the securities held by the EQT Investor.

SEC source: 0001415889-21-005392 · form4-11222021_021129.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,868,051

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $29.76 to $30.62. 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: 0001415889-21-005390 · form4-11222021_011128.xml · nonDerivative · entry 1

Choe Jieun W. · CIK 0001834184 · CHIEF STRATEGY & MARKETING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 262,991

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $29.74 to $30.61. 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: 0001415889-21-005219 · form4-11162021_011117.xml · nonDerivative · entry 6

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 225,287

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

SEC source: 0001415889-21-005219 · form4-11162021_011117.xml · nonDerivative · entry 5

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 230,287

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

F5 · price: This transaction was executed in multiple trades at prices ranging from $38.48 to $39.38. 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: 0001415889-21-005219 · form4-11162021_011117.xml · nonDerivative · entry 4

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 230,587

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

F4 · price: This transaction was executed in multiple trades at prices ranging from $37.37 to $38.28. 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: 0001415889-21-005219 · form4-11162021_011117.xml · nonDerivative · entry 3

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 245,287

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

SEC source: 0001415889-21-005219 · form4-11162021_011117.xml · nonDerivative · entry 2

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 248,287

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $38.44 to $38.98. 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: 0001415889-21-005219 · form4-11162021_011117.xml · nonDerivative · entry 1

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 248,987

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $37.37 to $38.36. 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: 0001415889-21-005221 · form4-11162021_011156.xml · nonDerivative · entry 2

Schemick Michael Andrew · CIK 0001834300 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 496,843

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $38.37 to $38.98. 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: 0001415889-21-005221 · form4-11162021_011156.xml · nonDerivative · entry 1

Schemick Michael Andrew · CIK 0001834300 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 497,613

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $37.37 to $38.36. 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: 0001415889-21-005198 · form4-11152021_011132.xml · nonDerivative · entry 2

Aspbury Robert · CIK 0001834221 · PRESIDENT, SIMCYP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278,969

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $39.92 to $40.45. 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: 0001415889-21-005198 · form4-11152021_011132.xml · nonDerivative · entry 1

Aspbury Robert · CIK 0001834221 · PRESIDENT, SIMCYP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 283,561

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $38.91 to $39.91. 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: 0001415889-21-005033 · form4-11012021_011125.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,374

F1 · shares: Represents 3,631 restricted stock units ("RSUs") granted to the reporting person that will entitle the reporting person to receive one share of the Issuer's Common Stock per RSU. The RSUs will cliff vest on November 1, 2022, subject to the continued service of the reporting person through the vesting date.

SEC source: 0001415889-21-005002 · form4-10282021_011027.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,938,051

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $39.75 to $39.76. 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: 0001415889-21-005002 · form4-10282021_011027.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,938,251

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $38.72 to $39.72. 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: 0001415889-21-004992 · form4-10272021_011013.xml · nonDerivative · entry 1

Edge Justin · CIK 0001834272 · PRES., REGULATORY & ACCESS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 402,090

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

SEC source: 0001415889-21-004994 · form4-10272021_011003.xml · nonDerivative · entry 1

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 298,287

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

SEC source: 0001415889-21-004948 · form4-10222021_021039.xml · nonDerivative · entry 1

Edge Justin · CIK 0001834272 · PRES., REGULATORY & ACCESS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 405,090

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $38.51 to $38.83. 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: 0001415889-21-004935 · form4-10212021_011059.xml · nonDerivative · entry 1

Edge Justin · CIK 0001834272 · PRES., REGULATORY & ACCESS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 411,206

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $38.50 to $38.99. 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: 0001415889-21-004926 · form4-10202021_011052.xml · nonDerivative · entry 1

Edge Justin · CIK 0001834272 · PRES., REGULATORY & ACCESS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 423,880

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $38.50 to $38.61. 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: 0001415889-21-004928 · form4-10202021_011034.xml · nonDerivative · entry 3

Choe Jieun W. · CIK 0001834184 · CHIEF STRATEGY & MARKETING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 282,991

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

F4 · price: This transaction was executed in multiple trades at prices ranging from $38.54 to $38.60. 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: 0001415889-21-004928 · form4-10202021_011034.xml · nonDerivative · entry 2

Choe Jieun W. · CIK 0001834184 · CHIEF STRATEGY & MARKETING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 283,474

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $37.52 to $38.52. 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: 0001415889-21-004928 · form4-10202021_011034.xml · nonDerivative · entry 1

Choe Jieun W. · CIK 0001834184 · CHIEF STRATEGY & MARKETING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 301,557

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $36.45 to $37.43. 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: 0001415889-21-004909 · form4-10192021_011010.xml · nonDerivative · entry 2

Schemick Michael Andrew · CIK 0001834300 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 563,509

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $37.03 to $37.68. 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: 0001415889-21-004909 · form4-10192021_011010.xml · nonDerivative · entry 1

Schemick Michael Andrew · CIK 0001834300 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 568,127

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $36.03 to $37.02. 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: 0001415889-21-004897 · form4-10182021_011034.xml · nonDerivative · entry 1

Edge Justin · CIK 0001834272 · PRES., REGULATORY & ACCESS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 425,090

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

SEC source: 0001415889-21-004899 · form4-10182021_011018.xml · nonDerivative · entry 1

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 301,287

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

SEC source: 0001415889-21-004719 · form4-10042021_021018.xml · nonDerivative · entry 2

Aspbury Robert · CIK 0001834221 · PRESIDENT, SIMCYP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,523

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $33.83 to $34.55. 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: 0001415889-21-004719 · form4-10042021_021018.xml · nonDerivative · entry 1

Aspbury Robert · CIK 0001834221 · PRESIDENT, SIMCYP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 303,290

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $32.82 to $33.82. 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: 0001415889-21-004597 · form4-09282021_010945.xml · nonDerivative · entry 1

Edge Justin · CIK 0001834272 · PRES., REGULATORY & ACCESS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 430,090

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

SEC source: 0001415889-21-004594 · form4-09282021_010909.xml · nonDerivative · entry 1

Traynor Richard M. · CIK 0001834465 · SVP AND GENERAL COUNSEL

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 306,287

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

SEC source: 0001415889-21-004538 · form4-09232021_010947.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,013,051

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $36.74 to $36.97. 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: 0001415889-21-004538 · form4-09232021_010947.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,029,905

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $35.74 to $36.74. 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: 0001415889-21-004508 · form4-09212021_010946.xml · nonDerivative · entry 2

Schemick Michael Andrew · CIK 0001834300 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 630,176

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $34.86 to $35.22. 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: 0001415889-21-004508 · form4-09212021_010946.xml · nonDerivative · entry 1

Schemick Michael Andrew · CIK 0001834300 · CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 648,746

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $33.85 to $34.85. 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: 0001415889-21-004496 · form4-09202021_010918.xml · nonDerivative · entry 2

Choe Jieun W. · CIK 0001834184 · CHIEF STRATEGY & MARKETING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 302,991

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $35.73 to $36.45. 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: 0001415889-21-004496 · form4-09202021_010918.xml · nonDerivative · entry 1

Choe Jieun W. · CIK 0001834184 · CHIEF STRATEGY & MARKETING

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 316,726

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $34.72 to $35.71. 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: 0001415889-21-004384 · form4-09142021_020923.xml · nonDerivative · entry 1

SLAINE MASON P · CIK 0001079093 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,118,946

F1 · price: This amount represents the $31.00 public offering price per share of common stock of Certara, Inc., less the underwriting discount of $1.201 per share.

SEC source: 0001104659-21-115587 · tm2127641-1_4seq1.xml · nonDerivative · entry 1

EQT Avatar Parent L.P. · CIK 0001715533 · 10% owner

EQT Avatar Parent GP LLC · CIK 0001833933 · 10% owner

EQT Fund Management S.a r.l. · CIK 0001834239 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Held by EQT Avatar Parent L.P.

Disclosed balance after: 45,576,594

F1 · price: This amount represents the $31.00 public offering price per share of common stock of Certara, Inc., less the underwriting discount of $1.201 per share.

F2 · ownership.nature: Consists of shares of common stock held directly by EQT Avatar Parent L.P. ("EQT Investor"). EQT Avatar Parent GP LLC ("Avatar Parent GP") is the general partner of the EQT Investor. Several investment vehicles collectedly make up the fund known as "EQT VII." EQT VII owns 100% of the membership interests in Avatar Parent GP. EQT Fund Management S.a r.l. ("EFMS") has exclusive responsibility for the management and control of the business and affairs of investment vehicles which constitute the majority of the total commitments to EQT VII. As such, EFMS has the power to control Avatar Parent GP's voting and investment decisions and may be deemed to have beneficial ownership of the securities held by the EQT Investor.

SEC source: 0001415889-21-004340 · form4-09102021_010904.xml · nonDerivative · entry 5

Pedersen Leif E · CIK 0001559712 · PRESIDENT, SOFTWARE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 228,705

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

F6 · price: This transaction was executed in multiple trades at prices ranging from $36.05 to $36.15. 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: 0001415889-21-004340 · form4-09102021_010904.xml · nonDerivative · entry 4

Pedersen Leif E · CIK 0001559712 · PRESIDENT, SOFTWARE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 229,205

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

F5 · price: This transaction was executed in multiple trades at prices ranging from $34.91 to $35.87. 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: 0001415889-21-004340 · form4-09102021_010904.xml · nonDerivative · entry 3

Pedersen Leif E · CIK 0001559712 · PRESIDENT, SOFTWARE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 253,290

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

F4 · price: This transaction was executed in multiple trades at prices ranging from $33.91 to $34.90. 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: 0001415889-21-004340 · form4-09102021_010904.xml · nonDerivative · entry 2

Pedersen Leif E · CIK 0001559712 · PRESIDENT, SOFTWARE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 268,737

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

F3 · price: This transaction was executed in multiple trades at prices ranging from $32.89 to $33.87. 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: 0001415889-21-004340 · form4-09102021_010904.xml · nonDerivative · entry 1

Pedersen Leif E · CIK 0001559712 · PRESIDENT, SOFTWARE

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 273,687

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $31.88 to $32.85. 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: 0001415889-21-004264 · form4-09072021_020948.xml · nonDerivative · entry 4

Rayner Craig R. · CIK 0001834170 · PRESIDENT, INTEGRATED DRUG DEV

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 316,010

F7 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person.

F8 · price: This transaction was executed in multiple trades at prices ranging from $37.21 to $37.22. 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: 0001415889-21-004264 · form4-09072021_020948.xml · nonDerivative · entry 3

Rayner Craig R. · CIK 0001834170 · PRESIDENT, INTEGRATED DRUG DEV

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 316,210

F5 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person.

F6 · price: This transaction was executed in multiple trades at prices ranging from $36.19 to $37.18. 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: 0001415889-21-004264 · form4-09072021_020948.xml · nonDerivative · entry 2

Rayner Craig R. · CIK 0001834170 · PRESIDENT, INTEGRATED DRUG DEV

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 364,672

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person.

F4 · price: This transaction was executed in multiple trades at prices ranging from $34.12 to $34.33. 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: 0001415889-21-004264 · form4-09072021_020948.xml · nonDerivative · entry 1

Rayner Craig R. · CIK 0001834170 · PRESIDENT, INTEGRATED DRUG DEV

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 366,572

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

F2 · price: This transaction was executed in multiple trades at prices ranging from $32.91 to $33.88. 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: 0001415889-21-004189 · form4-09022021_010942.xml · nonDerivative · entry 2

Aspbury Robert · CIK 0001834221 · PRESIDENT, SIMCYP

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 319,877

F3 · kind: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person.

F4 · price: This transaction was executed in multiple trades at prices ranging from $34.17 to $34.28. 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.