Certara director receives 15,757 shares from RSUs

Certara, Inc. director Cynthia Collins acquired 15,757 shares of common stock through the vesting of restricted stock units.

Rhea-AI Filing Summary

Certara, Inc. director Cynthia Collins acquired 15,757 shares of common stock through the vesting of restricted stock units. On May 14, 2026, 15,757 RSUs granted on May 21, 2025 under the Certara, Inc. 2020 Incentive Plan converted into an equal number of common shares. Following this routine equity compensation event, Collins directly holds 51,846 shares of Certara common stock.

Insider Trade Summary

15,757 shares exercised/converted

Exercise 2 txns

Insider Collins Cynthia

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units	15,757	$0.00	$0.00
Exercise	Common Stock	15,757	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 0 contracts (Direct); Common Stock — 51,846 shares (Direct)

Footnotes (1)

1. 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.

Key Figures

Shares acquired via RSU vesting: 15,757 shares RSUs converted: 15,757 units Shares held after transaction: 51,846 shares +2 more

5 metrics

Shares acquired via RSU vesting 15,757 shares Common stock received on May 14, 2026

RSUs converted 15,757 units Restricted Stock Units converting to common stock

Shares held after transaction 51,846 shares Direct holdings following RSU conversion

Exercise/conversion price $0.00 per share RSU conversion price reported in Form 4

Transaction code M Exercise or conversion of derivative security

Key Terms

Restricted Stock Units, 2020 Incentive Plan, Exercise or conversion of derivative security

3 terms

Restricted Stock Units financial

"Each restricted stock unit ("RSU") was granted on May 21, 2025, under the Certara, Inc. 2020 Incentive Plan"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2020 Incentive Plan financial

"under the Certara, Inc. 2020 Incentive Plan ("2020 Incentive Plan") entitling the reporting person"

Exercise or conversion of derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Certara (CERT) director Cynthia Collins report?

Cynthia Collins reported an equity award vesting, not an open-market trade. On May 14, 2026, 15,757 restricted stock units converted into 15,757 shares of Certara common stock as part of her compensation, increasing her direct holdings to 51,846 shares.

How many Certara (CERT) shares did Cynthia Collins acquire in this Form 4?

She acquired 15,757 shares of Certara common stock. These shares came from the vesting and conversion of 15,757 restricted stock units granted earlier, rather than from purchasing shares in the market, and are recorded as a derivative exercise transaction.

What are the terms of the Certara (CERT) RSUs reported by Cynthia Collins?

Each restricted stock unit entitled Cynthia Collins to receive one share of Certara common stock. The RSUs were granted on May 21, 2025 under the 2020 Incentive Plan and vested into common shares on May 14, 2026, aligning with the company’s annual meeting.

How many Certara (CERT) shares does Cynthia Collins hold after this Form 4 transaction?

After the RSU vesting and conversion, Cynthia Collins directly holds 51,846 shares of Certara common stock. This total reflects her position following the issuance of 15,757 new shares from the exercised restricted stock units disclosed in the Form 4.

Was Cynthia Collins’ Certara (CERT) Form 4 a stock purchase or a compensation event?

The filing reflects a compensation-related event, not a stock purchase. Restricted stock units granted under the Certara, Inc. 2020 Incentive Plan vested and converted into 15,757 common shares, providing equity compensation rather than showing open-market buying activity.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/15/2026 - 04:31 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

X

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Collins Cynthia

(Last) (First) (Middle)

C/O CERTARA, INC.

4 RADNOR CORPORATE CENTER, SUITE 350

(Street)

RADNOR PENNSYLVANIA 19087

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Certara, Inc. [ CERT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/14/2026		M		15,757	A	$0(1)	51,846	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	05/14/2026		M			15,757	(1)	(1)	Common Stock	15,757	$0	0	D

Explanation of Responses:

1. 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.

	/s/ Daniel D. Corcoran, as Attorney-in-Fact for Cynthia Collins	05/15/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)