STOCK TITAN

Certara (NASDAQ: CERT) executive gains shares as RSUs and PSUs vest

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Certara, Inc. president and chief commercial officer Leif E. Pedersen reported vesting and settlement of stock awards on April 1, 2026. He exercised restricted stock units and performance stock units to receive 33,167 shares of common stock at an exercise price of $0.00 per share.

He also received a separate award of 14,510 shares of common stock, while 11,611 shares were withheld at $5.70 per share to satisfy tax obligations tied to the RSU and PSU vesting. Following these compensation-related transactions, he directly holds 110,045 shares of Certara common stock.

Positive

  • None.

Negative

  • None.
Insider Pedersen Leif E
Role PRESIDENT, CHIEF COMMERCAL OFF
Type Security Shares Price Value
Exercise Restricted Stock Units 7,852 $0.00 --
Exercise Restricted Stock Units 10,127 $0.00 --
Exercise Restricted Stock Units 15,188 $0.00 --
Grant/Award Common Stock 14,510 $0.00 --
Tax Withholding Common Stock 3,534 $5.70 $20K
Exercise Common Stock 7,852 $0.00 --
Tax Withholding Common Stock 1,912 $5.70 $11K
Exercise Common Stock 10,127 $0.00 --
Tax Withholding Common Stock 2,466 $5.70 $14K
Exercise Common Stock 15,188 $0.00 --
Tax Withholding Common Stock 3,699 $5.70 $21K
Holdings After Transaction: Restricted Stock Units — 0 shares (Direct); Common Stock — 88,489 shares (Direct)
Footnotes (1)
  1. Each performance stock unit ("PSU") was granted on April 1, 2023, under the Certara, Inc. ("Certara") 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock. The PSUs were subject to the achievement of certain performance objectives over a three-year period from January 1, 2023, to December 31, 2025. The PSUs were vested and settled on April 1, 2026. Represents shares of Certara withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units ("RSUs") and PSUs described in footnotes 1, 3, 4, and 5, exempt under Rule 16b-3. 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. One-third of the RSUs vested and were settled on April 1, 2025. The remaining one-third of the RSUs vested and settled on April 1, 2026. 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. One-third of the RSUs vested and were settled on April 1, 2025. One-third of the RSUs vested and were settled on April 1, 2026. The remaining one-third of the RSUs will vest and settle on April 1, 2027. Each restricted stock unit was granted on May 20, 2025, 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, 2026. The remaining two-thirds of the RSUs will vest and settle in equal parts on April 1, 2027 an April 1, 2028.
RSUs/PSUs exercised 33,167 shares Derivative exercises into common stock on April 1, 2026
New common stock award 14,510 shares Grant or award of common stock on April 1, 2026
Shares withheld for taxes 11,611 shares Tax withholding dispositions at $5.70 per share
Tax withholding price $5.70 per share Price used for F-code tax-withholding transactions
Shares owned after transactions 110,045 shares Direct holdings after April 1, 2026 transactions
Derivative exercises count 3 transactions M-code exercises totaling 33,167 underlying shares
Tax-withholding transactions 4 transactions F-code dispositions covering RSU and PSU vesting taxes
Restricted Stock Units financial
"Represents shares of Certara withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units"
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.
performance stock unit financial
"Each performance stock unit ("PSU") was granted on April 1, 2023, under the Certara, Inc. 2020 Incentive Plan"
A performance stock unit is a type of reward companies give to employees, usually managers, that depends on how well the company performs over time. If the company hits specific goals, the employee earns shares of stock, like earning a prize for reaching certain levels in a game. It motivates employees to work hard because their rewards are tied to the company's success.
2020 Incentive Plan financial
"granted on April 1, 2023, under the Certara, Inc. ("Certara") 2020 Incentive Plan"
tax withholding obligations financial
"Represents shares of Certara withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units"
Rule 16b-3 regulatory
"withheld to satisfy tax withholding obligations ... exempt under Rule 16b-3"
Rule 16b-3 is a Securities and Exchange Commission regulation that exempts certain routine, pre-approved transactions by company insiders from automatic liability for short-term trading profits. It acts like a safe harbor: if an insider follows a formal plan or the board approves specific transactions in advance, profits from buying and selling company stock within six months are not automatically reclaimed. Investors care because the rule clarifies when insider trades are permissible and reduces uncertainty about potential clawbacks.
SEC Form 4
FORM 4UNITED 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
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*
Pedersen Leif E

(Last)(First)(Middle)
C/O CERRTARA, 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
PRESIDENT, CHIEF COMMERCAL OFF
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock04/01/2026A14,510A$0(1)88,489D
Common Stock04/01/2026F3,534(2)D$5.7(1)84,955D
Common Stock04/01/2026M7,852A$0(3)92,807D
Common Stock04/01/2026F1,912(2)D$5.7(3)90,895D
Common Stock04/01/2026M10,127A$0(4)101,022D
Common Stock04/01/2026F2,466(2)D$5.7(4)98,556D
Common Stock04/01/2026M15,188A$0(5)113,744D
Common Stock04/01/2026F3,699(2)D$5.7(5)110,045D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units(3)04/01/2026M7,852 (3)04/01/2026Common Stock7,852$00D
Restricted Stock Units(4)04/01/2026M10,127 (4)04/01/2027Common Stock10,127$010,127D
Restricted Stock Units(5)04/01/2026M15,188 (5)04/01/2028Common Stock15,188$030,378D
Explanation of Responses:
1. Each performance stock unit ("PSU") was granted on April 1, 2023, under the Certara, Inc. ("Certara") 2020 Incentive Plan (the "2020 Incentive Plan") and represents a right to receive one share of common stock. The PSUs were subject to the achievement of certain performance objectives over a three-year period from January 1, 2023, to December 31, 2025. The PSUs were vested and settled on April 1, 2026.
2. Represents shares of Certara withheld to satisfy tax withholding obligations in connection with the vesting of restricted stock units ("RSUs") and PSUs described in footnotes 1, 3, 4, and 5, exempt under Rule 16b-3.
3. 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. One-third of the RSUs vested and were settled on April 1, 2025. The remaining one-third of the RSUs vested and settled on April 1, 2026.
4. 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. One-third of the RSUs vested and were settled on April 1, 2025. One-third of the RSUs vested and were settled on April 1, 2026. The remaining one-third of the RSUs will vest and settle on April 1, 2027.
5. Each restricted stock unit was granted on May 20, 2025, 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, 2026. The remaining two-thirds of the RSUs will vest and settle in equal parts on April 1, 2027 an April 1, 2028.
/s/ Daniel Corcoran, as Attorney-in-Fact for Leif E. Pedersen04/03/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transactions did Certara (CERT) report for Leif Pedersen?

Certara reported that executive Leif E. Pedersen had RSUs and PSUs vest and settle into 33,167 shares of common stock, received an additional 14,510 shares as an award, and had 11,611 shares withheld for taxes, ending with 110,045 shares owned.

Did the Certara (CERT) insider Form 4 show any open-market stock sales?

The Form 4 for Certara executive Leif E. Pedersen shows no open-market sales. Dispositions were coded F, meaning 11,611 shares were withheld at $5.70 per share solely to cover tax obligations on vested RSUs and PSUs.

How many Certara (CERT) shares does Leif Pedersen hold after these transactions?

After the reported RSU and PSU vesting, related awards, and tax withholding, Leif E. Pedersen directly holds 110,045 shares of Certara common stock. This figure reflects the net result of all acquisitions and tax-withholding dispositions reported on April 1, 2026.

What equity awards vested for Certara (CERT) executive Leif Pedersen on April 1, 2026?

Performance stock units granted on April 1, 2023 vested after a three-year performance period ending December 31, 2025. In addition, RSUs granted in 2023, 2024, and 2025 had portions vest and settle into Certara common stock on April 1, 2026.

Why were shares withheld from Certara (CERT) executive Leif Pedersen’s awards?

The filing states that 11,611 shares of Certara common stock were withheld to satisfy tax withholding obligations related to the vesting of RSUs and PSUs. These dispositions are exempt under Rule 16b-3 and are not open-market sales.