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CERT in the 13F filings

Certara Inc · CUSIP 15687V109

Sector · Software and IT servicesTheme · Cloud and enterprise software· L3VLUP-definedTheme · Prepackaged software
Quarter
Q2 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023Q2 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
22
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 1 listed it in both
Shares listed
12,452,250
combined, among listed positions
Reported value
$110m
combined, at the quarter end

Among the 92 comparable managers: 10 buyers (opened or added shares) and 14 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +1,610,882.

Managers listing CERT in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

22 of 22 holders

ActionFiling
Citadel Advisors LLC3,190,612$28munder 0.1%Added+2,035,80117 Feb 2026 (the filing on sec.gov)
Millennium Management LLC2,653,047$23munder 0.1%Trimmed-262,62517 Feb 2026 (the filing on sec.gov)
Capital World Investors2,160,079$19munder 0.1%Held011 Feb 2026 (the filing on sec.gov)
Woodline Partners LP1,157,286$10munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
MFS Investment Management853,541$7.5munder 0.1%Trimmed-494,11722 Jan 2026 (the filing on sec.gov)
Marshall Wace LLP798,182$7.0munder 0.1%Added+64,15313 Feb 2026 (the filing on sec.gov)
Invesco Ltd491,271$4.3munder 0.1%Trimmed-86,23019 Feb 2026 (the filing on sec.gov)
AQR Capital Management LLC236,649$2.1munder 0.1%Trimmed-56,02617 Feb 2026 (the filing on sec.gov)
Two Sigma Investments LP220,587$1.9munder 0.1%Trimmed-220,39417 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.146,401$1.3munder 0.1%Added+78,66917 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc105,076$926kunder 0.1%Added+15,72217 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP79,850$703kunder 0.1%Added+19,65017 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC78,546$692kunder 0.1%Added+33,73013 Feb 2026 (the filing on sec.gov)
Verition Fund Management LLC74,124$653kunder 0.1%Trimmed-3,62713 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd57,014$502kunder 0.1%Held017 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP50,552$445kunder 0.1%Trimmed-6,33217 Feb 2026 (the filing on sec.gov)
Renaissance Technologies LLC29,600$261kunder 0.1%Trimmed-93,02012 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC28,756$253kunder 0.1%Trimmed-57,03617 Feb 2026 (the filing on sec.gov)
Winton Group Ltd14,500$128kunder 0.1%Newnew11 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC10,821$95kunder 0.1%Newnew27 Oct 2026 (the filing on sec.gov)
GAMCO Investors Inc10,200$90kunder 0.1%Newnew5 Feb 2026 (the filing on sec.gov)
Fidelity (FMR LLC)5,556$49kunder 0.1%Trimmed-278,61617 Feb 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (4)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
2 in Q2 2024 to 1 in Q2 2026

Tracked managers listing it, at least.

024620212022202320242025
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
CERT by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20205$88mn.a.n.a.
Q1 20212$30mn.a.n.a.
Q2 20213$93mn.a.n.a.
Q3 20215$566mn.a.n.a.
Q4 20215$556mn.a.n.a.
Q1 20223$311mn.a.n.a.
Q2 20224$359mn.a.n.a.
Q3 20225$191mn.a.n.a.
Q4 20223$214mn.a.n.a.
Q1 20232$235mn.a.n.a.
Q2 20232$175mn.a.n.a.
Q3 20232$137mn.a.n.a.
Q4 20233$206m12
Q1 20243$201m03
Q2 20242$154m11
Q3 20241$46m11
Q4 20242$55m20
Q1 20252$40m20
Q2 20252$32m10
Q3 20251$26m00
Q4 20252$29m1014
Q2 20261$3.4m1513

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

CERT and GOOGL →CERT and AMZN →CERT and MSFT →Choose a stock to compare with CERT →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own CERT, latest filings →Back to the 13F Explorer →