CERTNasdaqServices-Prepackaged SoftwareFiscal year ends December 31
Certara, Inc.
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 4, 2026
$9.45+0.08 (+0.85%)
Close on Oct 19, 2026
- Market cap
- $1.46B
- P/E (TTM)
- –
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
88.5%
135M of 153M shares
Institutional holders
241
58 new, 69 sold out
Net institutional buying
-1M
In Q2 2026
Insider trades, 12 months
1 buys · 0 sales
Net bought $200.00K
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Terry M. Mullen | 36,345,835 | 22.60% | 13D (active) amendment | Apr 14, 2025 |
| BlackRock, Inc. | 18,032,062 | 11.60% | 13G (passive) amendment | Jun 30, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of CERT | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 18,818,180 | 12.34% | $123.26M | +4,510,302 | 0.00% |
| Deerfield Management Company, L.P. (Series C) | 7,512,928 | 4.93% | $49.21M | −295,677 | 0.51% |
| Haveli Investment Management LLC | 7,400,000 | 4.85% | $48.47M | New | 26.95% |
| Jefferies Financial Group Inc. | 7,091,051 | 4.65% | $46.45M | +232,842 | 0.31% |
| Vanguard Portfolio Management LLC | 7,056,106 | 4.63% | $46.22M | +1,086,910 | 0.00% |
| Dimensional Fund Advisors LP | 6,022,686 | 3.95% | $39.45M | −2,539,822 | 0.01% |
| Vanguard Capital Management LLC | 5,283,180 | 3.46% | $34.60M | −77,249 | 0.00% |
| State Street Corp | 4,821,805 | 3.16% | $31.58M | +881,310 | 0.00% |
| Wasatch Advisors LP | 4,298,825 | 2.82% | $28.16M | −973,341 | 0.18% |
| Geode Capital Management, LLC | 3,141,689 | 2.06% | $20.58M | +1,027,133 | 0.00% |
| Fort Washington Investment Advisors Inc /Oh/ | 2,864,204 | 1.88% | $18.76M | +188,661 | 0.09% |
| Royce & Associates LP | 2,756,026 | 1.81% | $18.05M | +1,540,975 | 0.15% |
| UBS Group AG | 2,666,456 | 1.75% | $17.47M | −754,176 | 0.00% |
| Millennium Management LLC | 2,555,126 | 1.68% | $16.74M | +1,299,182 | 0.01% |
| Morgan Stanley | 2,551,111 | 1.67% | $16.71M | −689,106 | 0.00% |
| First Trust Advisors LP | 2,424,222 | 1.59% | $15.88M | +1,508,738 | 0.01% |
| Aqr Capital Management LLC | 2,160,167 | 1.42% | $13.76M | +1,589,441 | 0.00% |
| Ameriprise Financial Inc | 2,030,844 | 1.33% | $13.30M | −217,015 | 0.00% |
| T. Rowe Price Investment Management, Inc. | 1,998,373 | 1.31% | $13.09K | +660,746 | 0.01% |
| Systematic Financial Management LP | 1,892,050 | 1.24% | $12.39M | New | 0.25% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 241 | 135M | 88.5% | 58 / 91 | 70 / 69 | 36M | 37M |
| Q1 2026 | 256 | 136M | 89.0% | 61 / 103 | 62 / 55 | 39M | 39M |
| Q4 2025 | 256 | 149M | 97.5% | 55 / 73 | 97 / 38 | 22M | 13M |
| Q3 2025 | 242 | 141M | 92.6% | 44 / 88 | 86 / 36 | 19M | 8M |
| Q2 2025 | 236 | 130M | 85.4% | 45 / 74 | 92 / 47 | 22M | 13M |
| Q1 2025 | 240 | 122M | 80.0% | 53 / 92 | 65 / 33 | 17M | 14M |
| Q4 2024 | 223 | 120M | 78.5% | 43 / 84 | 73 / 42 | 25M | 25M |
| Q3 2024 | 227 | 120M | 78.7% | 47 / 64 | 88 / 35 | 33M | 24M |
| Q2 2024 | 216 | 124M | 81.4% | 27 / 70 | 87 / 28 | 8M | 10M |
| Q1 2024 | 220 | 126M | 82.8% | 27 / 80 | 73 / 20 | 8M | 5M |
| Q4 2023 | 213 | 123M | 80.7% | 30 / 81 | 81 / 16 | 22M | 7M |
| Q3 2023 | 202 | 108M | 70.7% | 23 / 67 | 87 / 29 | 7M | 7M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of CERT | Value | % of fund | As of |
|---|---|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 7,030,811 | 4.61% | $46.05M | 0.04% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 3,721,805 | 2.44% | $24.38M | 0.00% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 3,014,141 | 1.98% | $19.74M | 0.02% | Jun 30, 2026 |
| Vanguard Small-Cap Index Fund | 2,673,186 | 1.75% | $17.51M | 0.01% | Jun 30, 2026 |
| Touchstone Strategic Trust-Touchstone Small Company Fund | 2,195,407 | 1.44% | $14.38M | 0.84% | Jun 30, 2026 |
| Wasatch Small Cap Value Fund | 1,814,406 | 1.19% | $11.88M | 0.85% | Jun 30, 2026 |
| U.S. Small Cap Value Portfolio | 1,722,913 | 1.13% | $13.96M | 0.07% | Jul 31, 2026 |
| Vanguard Small-Cap Value Index Fund | 1,694,983 | 1.11% | $11.10M | 0.02% | Jun 30, 2026 |
| Vanguard Extended Market Index Fund | 1,351,135 | 0.89% | $8.85M | 0.01% | Jun 30, 2026 |
| Columbia Small Cap Value Discovery Fund | 1,279,300 | 0.84% | $10.36M | 0.42% | Jul 31, 2026 |
| Fidelity Small Cap Index Fund | 1,271,146 | 0.83% | $10.30M | 0.03% | Jul 31, 2026 |
| U.S. Targeted Value Portfolio | 1,175,902 | 0.77% | $9.52M | 0.06% | Jul 31, 2026 |
| T. Rowe Price Small-Cap Value Fund, Inc. | 1,165,008 | 0.76% | $7.63M | 0.07% | Jun 30, 2026 |
| iShares Russell 2000 Value ETF | 1,100,618 | 0.72% | $7.21M | 0.05% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 1,067,798 | 0.70% | $6.99M | 0.04% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| John V. W. Reynders | Chief Financial Officer, Director | 26,466 | 0.02% | May 15, 2026 |
| Jon Matthew Resnick | Chief Executive Officer, Director | 59,766 | 0.04% | May 13, 2026 |
| William F. Feehery | CHIEF EXECUTIVE OFFICER, Director | 2,360,769 | 1.55% | Nov 12, 2025 |
| Faiz Mohammed | Interim CFO | 163,686 | 0.11% | Sep 2, 2026 |
| Rona Anhalt | Chief Human Resources Officer | 19,030 | 0.01% | Jun 2, 2026 |
| Daniel Corcoran | SVP and General Counsel | 39,939 | 0.03% | Jun 2, 2026 |
| John E. Gallagher | Chief Financial Officer | 62,099 | 0.04% | May 13, 2026 |
| Robert Aspbury | PRESIDENT, PREDICTIVE TECH | 321,686 | 0.21% | May 13, 2026 |
| Leif E. Pedersen | PRESIDENT, CHIEF COMMERCAL OFF | 84,955 | 0.06% | May 13, 2026 |
| Adrian McKemey | President, Drug Dev. Solutions | 8,207 | 0.01% | Apr 3, 2026 |
| Eran Broshy | Director | 50,708 | 0.03% | May 15, 2026 |
| James E. Cashman Iii | Director | 484,197 | 0.32% | May 15, 2026 |
| Cynthia Collins | Director | 51,846 | 0.03% | May 15, 2026 |
| Rosemary A. Crane | Director | 45,672 | 0.03% | May 15, 2026 |
| Matthew M. Walsh | Director | 213,316 | 0.14% | May 15, 2026 |
| Arjun Bedi | Director | 5,547 | 0.00% | May 15, 2026 |
| Nancy Killefer | Director | 51,846 | 0.03% | May 15, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Daniel Corcoran SVP and General Counsel | Jun 1, 2026 | Option exercise | +14,889 | – | – | 39,939 |
| Daniel Corcoran SVP and General Counsel | Jun 1, 2026 | Tax withholding | −4,210 | $5.82 | $24.50K | 25,050 |
| Daniel Corcoran SVP and General Counsel | Jun 1, 2026 | Option exercise | +7,941 | – | – | 29,260 |
| Daniel Corcoran SVP and General Counsel | Jun 1, 2026 | Tax withholding | −7,893 | $5.82 | $45.94K | 32,046 |
| Rona Anhalt Chief Human Resources Officer | Jun 1, 2026 | Option exercise | +7,147 | – | – | 19,030 |
| Rona Anhalt Chief Human Resources Officer | Jun 1, 2026 | Tax withholding | −2,241 | $5.82 | $13.04K | 16,789 |
| James E. Cashman Iii Director | May 14, 2026 | Option exercise | +15,757 | – | – | 484,197 |
| Matthew M. Walsh Director | May 14, 2026 | Option exercise | +15,757 | – | – | 213,316 |
| Nancy Killefer Director | May 14, 2026 | Option exercise | +15,757 | – | – | 51,846 |
| Eran Broshy Director | May 14, 2026 | Option exercise | +15,757 | – | – | 50,708 |
| Rosemary A. Crane Director | May 14, 2026 | Option exercise | +15,757 | – | – | 45,672 |
| Cynthia Collins Director | May 14, 2026 | Option exercise | +15,757 | – | – | 51,846 |
| Arjun Bedi Director | May 14, 2026 | Option exercise | +5,547 | – | – | 5,547 |
| John V. W. Reynders Chief Financial Officer, Director | May 14, 2026 | Option exercise | +15,757 | – | – | 26,466 |
| Jon Matthew Resnick Chief Executive Officer, Director | May 11, 2026 | Option exercise | +59,766 | – | – | 59,766 |
| Jon Matthew Resnick Chief Executive Officer, Director | May 11, 2026 | Tax withholding | −24,377 | $6.31 | $153.82K | 35,389 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Tax withholding | −3,534 | $5.70 | $20.14K | 84,955 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Option exercise | +10,127 | – | – | 101,022 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Option exercise | +15,188 | – | – | 113,744 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Tax withholding | −3,699 | $5.70 | $21.08K | 110,045 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Award | +14,510 | – | – | 88,489 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Tax withholding | −2,466 | $5.70 | $14.06K | 98,556 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Option exercise | +7,852 | – | – | 92,807 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Apr 1, 2026 | Tax withholding | −1,912 | $5.70 | $10.90K | 90,895 |
| Adrian McKemey President, Drug Dev. Solutions | Apr 1, 2026 | Tax withholding | −2,642 | $5.70 | $15.06K | 8,207 |
| Adrian McKemey President, Drug Dev. Solutions | Apr 1, 2026 | Option exercise | +10,849 | – | – | 10,849 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Award | +14,510 | – | – | 321,686 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Option exercise | +7,852 | – | – | 322,717 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Tax withholding | −6,821 | $5.70 | $38.88K | 314,865 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Tax withholding | −4,760 | $5.70 | $27.13K | 324,393 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Tax withholding | −3,691 | $5.70 | $21.04K | 319,026 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Option exercise | +10,127 | – | – | 329,153 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Tax withholding | −7,139 | $5.70 | $40.69K | 332,442 |
| Robert Aspbury PRESIDENT, PREDICTIVE TECH | Apr 1, 2026 | Option exercise | +15,188 | – | – | 339,581 |
| Daniel Corcoran SVP and General Counsel | Apr 1, 2026 | Option exercise | +10,849 | – | – | 27,070 |
| Daniel Corcoran SVP and General Counsel | Apr 1, 2026 | Tax withholding | −5,751 | $5.70 | $32.78K | 21,319 |
| Rona Anhalt Chief Human Resources Officer | Apr 1, 2026 | Option exercise | +9,764 | – | – | 14,945 |
| Rona Anhalt Chief Human Resources Officer | Apr 1, 2026 | Tax withholding | −3,062 | $5.70 | $17.45K | 11,883 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Tax withholding | −7,775 | $5.70 | $44.32K | 62,099 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Option exercise | +12,633 | – | – | 74,732 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Tax withholding | −4,327 | – | – | 70,405 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Option exercise | +15,190 | – | – | 85,595 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Tax withholding | −5,203 | $5.70 | $29.66K | 80,392 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Option exercise | +22,782 | – | – | 103,174 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Tax withholding | −7,803 | $5.70 | $44.48K | 95,371 |
| John E. Gallagher Chief Financial Officer | Apr 1, 2026 | Award | +23,346 | – | – | 69,874 |
| William F. Feehery CHIEF EXECUTIVE OFFICER, Director | Nov 11, 2025 | Buy | +24,096.38 | $8.30 | $200.00K | 2,360,769 |
| Leif E. Pedersen PRESIDENT, CHIEF COMMERCAL OFF | Sep 9, 2025 | Sale(10b5-1 plan) | −51,224 | $10.92 | $559.37K | 73,979 |
| Rona Anhalt Chief Human Resources Officer | May 30, 2025 | Tax withholding | −1,965 | $11.40 | $22.40K | 5,181 |
| Rona Anhalt Chief Human Resources Officer | May 30, 2025 | Option exercise | +7,146 | – | – | 7,146 |
| Daniel Corcoran SVP and General Counsel | May 30, 2025 | Option exercise | +7,940 | – | – | 7,940 |
| Daniel Corcoran SVP and General Counsel | May 30, 2025 | Tax withholding | −2,298 | $11.40 | $26.20K | 5,642 |
| Daniel Corcoran SVP and General Counsel | May 30, 2025 | Option exercise | +14,888 | – | – | 20,530 |
| Daniel Corcoran SVP and General Counsel | May 30, 2025 | Tax withholding | −4,309 | $11.40 | $49.12K | 16,221 |
| Rosemary A. Crane Director | May 21, 2025 | Option exercise | +11,928 | – | – | 29,915 |
| Matthew M. Walsh Director | May 21, 2025 | Option exercise | +11,928 | – | – | 197,559 |
| James E. Cashman Iii Director | May 21, 2025 | Option exercise | +11,928 | – | – | 468,440 |
| John V. W. Reynders Director | May 21, 2025 | Option exercise | +10,709 | – | – | 10,709 |
| Cynthia Collins Director | May 21, 2025 | Option exercise | +11,928 | – | – | 36,089 |
| Nancy Killefer Director | May 21, 2025 | Option exercise | +11,928 | – | – | 36,089 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Leif E. Pedersen Officer | Sep 3, 2026 | 36,066 | $300.07K | Sep 3, 2026 | Restricted Stock Vesting |
| Leif E. Pedersen Officer | Sep 9, 2025 | 51,224 | $559.30K | Sep 9, 2025 | Restricted Stock Vesting |
| Patrick F. Smith Officer | Apr 2, 2025 | 20,142 | $195.98K | Apr 2, 2025 | Restricted Stock Vesting |
| Patrick F. Smith Officer | Oct 7, 2024 | 5,409 | $59.66K | Oct 7, 2024 | Restricted Stock Vesting |
| Leif E. Pedersen Officer | Sep 9, 2024 | 51,224 | $578.45K | Sep 9, 2024 | Restricted Stock Vesting |
| Patrick F. Smith Officer | Apr 2, 2024 | 14,427 | $254.20K | Apr 2, 2024 | Restricted Stock Vesting |
| Richard M. Traynor Officer | Apr 1, 2024 | 3,000 | $54.00K | Apr 1, 2024 | Pre-IPO Shares |
| Richard M. Traynor Officer | Mar 4, 2024 | 3,000 | $54.84K | Mar 4, 2024 | Pre-IPO |
| Patrick F. Smith Officer | Feb 20, 2024 | 5,000 | $90.00K | Feb 20, 2024 | Restricted Stock Vesting |
| Richard M. Traynor Officer | Feb 12, 2024 | 6,000 | $108.00K | Feb 12, 2024 | Pre-IPO Shares |
| Richard M. Traynor Officer | Dec 26, 2023 | 6,000 | $108.00K | Dec 26, 2023 | Pre-IPO Shares |
| Leif E. Pedersen Officer | Sep 11, 2023 | 51,224 | $748.07K | Sep 11, 2023 | Restricted Stock Vesting |
| Patrick F. Smith Officer | Jun 5, 2023 | 19,104 | $411.69K | Jun 5, 2023 | Restricted Stock Vesting |
| Richard M. Traynor Officer | May 11, 2023 | 5,000 | $104.10K | May 11, 2023 | Pre-IPO |
| Richard M. Traynor Officer | Apr 14, 2023 | 5,000 | $118.30K | Apr 14, 2023 | Pre-IPO Shares |