BOSTON, MA
SEMRUSH HOLDINGS, INC.SEMR— Latest position per institution from SEC 13F filings
15
Institutional holders
81.84M
Total shares held
833.18M
Estimated value
4.09M
Avg. position size
GREYCROFT LP
CIK 1910274
Shares
8.98M
Value
107.27M
Filed
Mar 31, 2026
RPM CAPITAL PARTNERS, LLC
CIK 1555433
Shares
8.98M
Value
106.81M
Filed
Dec 31, 2025
SIGULER GUFF ADVISERS, LLC
CIK 1328551
Shares
7.27M
Value
51.49M
Filed
Sep 30, 2025
VANGUARD GROUP INC
CIK 102909
Shares
6.41M
Value
76.16M
Filed
Dec 31, 2025
GLAZER CAPITAL, LLC
CIK 1076809
Shares
6.30M
Value
75.17K
Filed
Mar 31, 2026
FIL LTD
CIK 318989
Shares
5.21M
Value
62.25M
Filed
Mar 31, 2026
CAT ROCK CAPITAL MANAGEMENT LP
CIK 1654648
Shares
4.74M
Value
33.56M
Filed
Sep 30, 2025
NEXPOINT ASSET MANAGEMENT, L.P.
CIK 1469877
Shares
4.60M
Value
54.90M
Filed
Mar 31, 2026
BLACKROCK, INC.
CIK 2012383
Shares
3.81M
Value
45.49M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.74M
Value
44.61M
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
3.70M
Value
49.48M
Filed
Jun 30, 2024
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.67M
Value
31.90M
Filed
Mar 31, 2026
DORSEY ASSET MANAGEMENT, LLC
CIK 1671657
Shares
2.28M
Value
20.68M
Filed
Jun 30, 2025
ALLIANCEBERNSTEIN L.P.
CIK 1109448
Shares
2.14M
Value
25.45M
Filed
Mar 31, 2026
AQR ARBITRAGE LLC
CIK 1167456
Shares
2.05M
Value
24.43M
Filed
Mar 31, 2026
QUBE RESEARCH & TECHNOLOGIES LTD
CIK 1729829
Shares
1.93M
Value
22.99M
Filed
Mar 31, 2026
ODDO BHF ASSET MANAGEMENT SAS
CIK 1686970
Shares
1.80M
Value
21.49M
Filed
Mar 31, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
1.78M
Value
21.28M
Filed
Mar 31, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
1.74M
Value
12.29M
Filed
Sep 30, 2025
MORGAN STANLEY
CIK 895421
Shares
1.72M
Value
20.59M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | GREYCROFT LP | 1910274 | 8.98M | 107.27M | Mar 31, 2026 |
| 2 | RPM CAPITAL PARTNERS, LLC | 1555433 | 8.98M | 106.81M | Dec 31, 2025 |
| 3 | SIGULER GUFF ADVISERS, LLC | 1328551 | 7.27M | 51.49M | Sep 30, 2025 |
| 4 | VANGUARD GROUP INC | 102909 | 6.41M | 76.16M | Dec 31, 2025 |
| 5 | GLAZER CAPITAL, LLC | 1076809 | 6.30M | 75.17K | Mar 31, 2026 |
| 6 | FIL LTD | 318989 | 5.21M | 62.25M | Mar 31, 2026 |
| 7 | CAT ROCK CAPITAL MANAGEMENT LP | 1654648 | 4.74M | 33.56M | Sep 30, 2025 |
| 8 | NEXPOINT ASSET MANAGEMENT, L.P. | 1469877 | 4.60M | 54.90M | Mar 31, 2026 |
| 9 | BLACKROCK, INC. | 2012383 | 3.81M | 45.49M | Mar 31, 2026 |
| 10 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.74M | 44.61M | Mar 31, 2026 |
| 11 | BLACKROCK FINANCE, INC. | 1364742 | 3.70M | 49.48M | Jun 30, 2024 |
| 12 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.67M | 31.90M | Mar 31, 2026 |
| 13 | DORSEY ASSET MANAGEMENT, LLC | 1671657 | 2.28M | 20.68M | Jun 30, 2025 |
| 14 | ALLIANCEBERNSTEIN L.P. | 1109448 | 2.14M | 25.45M | Mar 31, 2026 |
| 15 | AQR ARBITRAGE LLC | 1167456 | 2.05M | 24.43M | Mar 31, 2026 |
| 16 | QUBE RESEARCH & TECHNOLOGIES LTD | 1729829 | 1.93M | 22.99M | Mar 31, 2026 |
| 17 | ODDO BHF ASSET MANAGEMENT SAS | 1686970 | 1.80M | 21.49M | Mar 31, 2026 |
| 18 | GOLDMAN SACHS GROUP INC | 886982 | 1.78M | 21.28M | Mar 31, 2026 |
| 19 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 1.74M | 12.29M | Sep 30, 2025 |
| 20 | MORGAN STANLEY | 895421 | 1.72M | 20.59M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.