Semrush Holdings, Inc.
Semrush Holdings, Inc. (SEMR) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · SEMR · as of Sep 30, 2025
Ownership Breakdown
175
Institutional Holders
▼ 2 vs Q2
$478.77M
Total Inst. Value
▼ $144.34M vs Q2
151.18M
Shares Outstanding
freeFloat 28.53%
67.62M
13F Shares Held
▼ 1.23M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
SEMR largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
GREYCROFT LP services-prepackaged software | 8.98M | 6.08% | 6.08% | $63.61B | Nov 14, 2025 | — held |
RUSSIA PARTNERS MANAGEMENT, LLC services-prepackaged software | 8.98M | 6.08% | 6.08% | $63.60B | Oct 15, 2025 | — held |
SIGULER GUFF ADVISERS, LLC services-prepackaged software | 7.27M | 4.92% | 4.92% | $51.49B | Oct 15, 2025 | — held |
VANGUARD GROUP INC services-prepackaged software | 6.00M | 4.06% | 4.06% | $42.51B | Nov 7, 2025 | ▲ 405.6K |
CAT ROCK CAPITAL MANAGEMENT LP services-prepackaged software | 4.74M | 3.21% | 3.21% | $33.56B | Nov 14, 2025 | ▼ 184.3K |
BLACKROCK, INC. services-prepackaged software | 4.37M | 2.95% | 2.95% | $30.91B | Nov 12, 2025 | ▲ 223.9K |
MORGAN STANLEY services-prepackaged software | 2.07M | 1.40% | 1.40% | $14.69B | May 27, 2026 | ▲ 869.5K |
WELLINGTON MANAGEMENT GROUP LLP services-prepackaged software | 1.74M | 1.17% | 1.17% | $12.29B | Nov 14, 2025 | ▼ 51.1K |
DIMENSIONAL FUND ADVISORS LP services-prepackaged software | 1.41M | 95.19% | 95.19% | $9.96B | Nov 12, 2025 | ▲ 50.5K |
STATE STREET CORP services-prepackaged software | 1.34M | 90.52% | 90.52% | $9.47B | Nov 14, 2025 | ▲ 114.9K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
30
Increased
+6.24M shares2
New Positions
first time holders14
Decreased
−2.47M shares0
Sold Out
fully exitedNet shares change (top 50)
+3.76M
+6.24M / −2.47M
Net new holders
+18
2 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
SEMR insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
34
Sell transactions
0.00
Buy/Sell ratio
$29M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Warden Andrew Chief Marketing Officer | Apr 28, 2026 | D-Return | 338,902.89 | $12.00 | $4.07M | 0 | Form 4 ↗ |
Warden Andrew Chief Marketing Officer | Apr 28, 2026 | D-Return | 113,732 | $23.83 | $2.71M | 0 | Form 4 ↗ |
Warden Andrew Chief Marketing Officer | Apr 28, 2026 | D-Return | 63,694 | $11.96 | $761.8K | 0 | Form 4 ↗ |
Warden Andrew Chief Marketing Officer | Apr 28, 2026 | D-Return | 42,803 | $9.78 | $418.6K | 0 | Form 4 ↗ |
Mulroy Brian Chief Financial Officer | Apr 28, 2026 | D-Return | 1,015,576 | $12.00 | $12.19M | 0 | Form 4 ↗ |
Mulroy Brian Chief Financial Officer | Apr 28, 2026 | D-Return | 222,816 | $9.26 | $2.06M | 0 | Form 4 ↗ |
Levin Eugenie President | Apr 28, 2026 | D-Return | 577,985 | $12.00 | $6.94M | 0 | Form 4 ↗ |
Levin Eugenie President | Apr 28, 2026 | D-Return | 95,541 | $11.96 | $1.14M | 0 | Form 4 ↗ |
Levin Eugenie President | Apr 28, 2026 | D-Return | 191,082 | $9.78 | $1.87M | 0 | Form 4 ↗ |
Levin Eugenie President | Apr 28, 2026 | D-Return | 1,149,408 | — | — | 0 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Semrush Holdings, Inc. (SEMR) is primarily owned by institutional investors, who hold approximately 44.7% of total shares outstanding. Company insiders own approximately 71.47%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Semrush Holdings, Inc. is GREYCROFT LP, holding approximately 8.98 million shares — equal to 6.08% of outstanding shares — as of September 30, 2025.
A total of 175 institutional investors currently hold SEMR stock, with a combined institutional value of approximately $478,772,012 as of the most recent 13F filing period.
Frequently asked questions
SEMR ownershipSemrush Holdings, Inc. (SEMR) is primarily owned by institutional investors, who hold approximately 44.7% of shares. The largest shareholder is GREYCROFT LP with a 6.08% stake. Company insiders hold 71.47%. Data sourced from SEC Form 13F as of September 30, 2025.