MASON, OH
ATRICURE, INC.ATRC— Latest position per institution from SEC 13F filings
15
Institutional holders
44.44M
Total shares held
1.31B
Estimated value
2.22M
Avg. position size
VANGUARD GROUP INC
CIK 102909
Shares
4.90M
Value
193.99M
Filed
Dec 31, 2025
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
4.62M
Value
105.10M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
4.04M
Value
115.34M
Filed
Mar 31, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
3.38M
Value
96.50M
Filed
Mar 31, 2026
ALLIANCEBERNSTEIN L.P.
CIK 1109448
Shares
3.26M
Value
128.92M
Filed
Mar 31, 2026
HOOD RIVER CAPITAL MANAGEMENT LLC
CIK 1578177
Shares
3.12M
Value
88.94M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
2.70M
Value
77.11M
Filed
Mar 31, 2026
MACQUARIE GROUP LTD
CIK 1418333
Shares
2.29M
Value
80.70M
Filed
Sep 30, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
2.16M
Value
61.50M
Filed
Mar 31, 2026
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.
CIK 921739
Shares
1.80M
Value
51.49M
Filed
Mar 31, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
1.67M
Value
47.56M
Filed
Mar 31, 2026
MARSHALL WACE, LLP
CIK 1318757
Shares
1.47M
Value
41.87M
Filed
Mar 31, 2026
STATE STREET CORP
CIK 93751
Shares
1.30M
Value
37.15M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.23M
Value
34.99M
Filed
Mar 31, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
1.20M
Value
53.20K
Filed
Dec 31, 2022
DIVISADERO STREET CAPITAL MANAGEMENT, LP
CIK 1901865
Shares
1.16M
Value
33.09M
Filed
Mar 31, 2026
BNP PARIBAS ASSET MANAGEMENT HOLDING S.A.
CIK 1520354
Shares
1.06M
Value
30.26M
Filed
Mar 31, 2026
NEUBERGER BERMAN GROUP LLC
CIK 1465109
Shares
1.05M
Value
29.95M
Filed
Mar 31, 2026
NUVEEN ASSET MANAGEMENT, LLC
CIK 1521019
Shares
1.04M
Value
31.70M
Filed
Dec 31, 2024
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
997.76K
Value
28.47M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | 102909 | 4.90M | 193.99M | Dec 31, 2025 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 4.62M | 105.10M | Jun 30, 2024 |
| 3 | BLACKROCK, INC. | 2012383 | 4.04M | 115.34M | Mar 31, 2026 |
| 4 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 3.38M | 96.50M | Mar 31, 2026 |
| 5 | ALLIANCEBERNSTEIN L.P. | 1109448 | 3.26M | 128.92M | Mar 31, 2026 |
| 6 | HOOD RIVER CAPITAL MANAGEMENT LLC | 1578177 | 3.12M | 88.94M | Mar 31, 2026 |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 2.70M | 77.11M | Mar 31, 2026 |
| 8 | MACQUARIE GROUP LTD | 1418333 | 2.29M | 80.70M | Sep 30, 2025 |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 2.16M | 61.50M | Mar 31, 2026 |
| 10 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 921739 | 1.80M | 51.49M | Mar 31, 2026 |
| 11 | GOLDMAN SACHS GROUP INC | 886982 | 1.67M | 47.56M | Mar 31, 2026 |
| 12 | MARSHALL WACE, LLP | 1318757 | 1.47M | 41.87M | Mar 31, 2026 |
| 13 | STATE STREET CORP | 93751 | 1.30M | 37.15M | Mar 31, 2026 |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.23M | 34.99M | Mar 31, 2026 |
| 15 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 1.20M | 53.20K | Dec 31, 2022 |
| 16 | DIVISADERO STREET CAPITAL MANAGEMENT, LP | 1901865 | 1.16M | 33.09M | Mar 31, 2026 |
| 17 | BNP PARIBAS ASSET MANAGEMENT HOLDING S.A. | 1520354 | 1.06M | 30.26M | Mar 31, 2026 |
| 18 | NEUBERGER BERMAN GROUP LLC | 1465109 | 1.05M | 29.95M | Mar 31, 2026 |
| 19 | NUVEEN ASSET MANAGEMENT, LLC | 1521019 | 1.04M | 31.70M | Dec 31, 2024 |
| 20 | DIMENSIONAL FUND ADVISORS LP | 354204 | 997.76K | 28.47M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.