John V W. Reynders - 14 May 2026 Form 4 Insider Report for Certara, Inc. (CERT)

Reporting relationship: Chief Financial Officer, Director
Issuer ticker: CERT
Reported as of: 14 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 15 May 2026, 16:29:42 UTC
Prior SEC filing: 22 May 2025
Source filing: View source filing
Reporting owner signature: /s/ Daniel D. Corcoran, as Attorney-in-Fact for John V.W. Reynders

Key filing fact

John V W. Reynders filed Form 4 for Certara, Inc. (CERT) on 15 May 2026.

Key facts

This page summarizes John V W. Reynders's Form 4 filing for Certara, Inc. (CERT).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 15 May 2026, 16:29.

Change

Previous filing in this sequence was filed on 22 May 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002039811 Primary reporting owner

Reynders John V W

Relationship: Chief Financial Officer, Director
Address: C/O CERTARA, INC., 4 RADNOR CORPORATE CENTER, SUITE 350, RADNOR
Signature: /s/ Daniel D. Corcoran, as Attorney-in-Fact for John V.W. Reynders
Signature date: 15 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

CERT transaction

Common Stock

Options Exercise

Transaction value
Shares: +15,757
Change %: +147%
Price: $0.000000^*
Shares after: 26,466
Date: 14 May 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

CERT transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -15,757
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 14 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 15,757
Exercise price
Footnotes: F1

CERT transaction Derivative

Restricted Stock Units

Award

Transaction value
Shares: +33,222
Change %
Price: $0.000000^*
Shares after: 33,222
Date: 14 May 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 33,222
Exercise price
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Each restricted stock unit ("RSU") was granted on May 21, 2025, under the Certara, Inc. 2020 Incentive Plan ("2020 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 14, 2026, the day of the issuer's annual meeting.

Footnote F2

Each RSU was granted on May 14, 2026, under the 2020 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.