SAN JOSE, CA
A10 NETWORKS, INC.ATEN— Latest position per institution from SEC 13F filings
15
Institutional holders
73.97M
Total shares held
1.92B
Estimated value
3.70M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
13.57M
Value
506.92M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
12.73M
Value
176.28M
Filed
Jun 30, 2024
VANGUARD GROUP INC
CIK 102909
Shares
7.24M
Value
128.11M
Filed
Dec 31, 2025
WALLEYE CAPITAL LLC
CIK 1758720
Shares
5M
Value
5.96M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
3.46M
Value
129.34M
Filed
Jun 30, 2026
FIRST TRUST ADVISORS LP
CIK 1125816
Shares
3.24M
Value
121.22M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
3.08M
Value
115.17M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.07M
Value
114.74M
Filed
Jun 30, 2026
PENSERRA CAPITAL MANAGEMENT LLC
CIK 1593324
Shares
3.07M
Value
114.62K
Filed
Jun 30, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
2.87M
Value
76.77K
Filed
Jun 30, 2026
BOSTON TRUST WALDEN CORP
CIK 1534866
Shares
2.42M
Value
90.29M
Filed
Jun 30, 2026
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
Shares
1.96M
Value
73.22M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.81M
Value
67.77M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
1.78M
Value
66.69M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
1.60M
Value
59.74M
Filed
Jun 30, 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 1037389
Shares
1.52M
Value
56.80M
Filed
Jun 30, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 1164508
Shares
1.44M
Value
53.71M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
1.43M
Value
53.57M
Filed
Jun 30, 2026
MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.
CIK 1705339
Shares
1.43M
Value
53.27M
Filed
Jun 30, 2026
INVESCO LTD.
CIK 914208
Shares
1.24M
Value
46.44M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 13.57M | 506.92M | Jun 30, 2026 |
| 2 | BLACKROCK FINANCE, INC. | 1364742 | 12.73M | 176.28M | Jun 30, 2024 |
| 3 | VANGUARD GROUP INC | 102909 | 7.24M | 128.11M | Dec 31, 2025 |
| 4 | WALLEYE CAPITAL LLC | 1758720 | 5M | 5.96M | Mar 31, 2026 |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 3.46M | 129.34M | Jun 30, 2026 |
| 6 | FIRST TRUST ADVISORS LP | 1125816 | 3.24M | 121.22M | Jun 30, 2026 |
| 7 | STATE STREET CORP | 93751 | 3.08M | 115.17M | Jun 30, 2026 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.07M | 114.74M | Jun 30, 2026 |
| 9 | PENSERRA CAPITAL MANAGEMENT LLC | 1593324 | 3.07M | 114.62K | Jun 30, 2026 |
| 10 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 2.87M | 76.77K | Jun 30, 2026 |
| 11 | BOSTON TRUST WALDEN CORP | 1534866 | 2.42M | 90.29M | Jun 30, 2026 |
| 12 | WELLINGTON MANAGEMENT GROUP LLP | 902219 | 1.96M | 73.22M | Jun 30, 2026 |
| 13 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.81M | 67.77M | Jun 30, 2026 |
| 14 | GOLDMAN SACHS GROUP INC | 886982 | 1.78M | 66.69M | Jun 30, 2026 |
| 15 | DIMENSIONAL FUND ADVISORS LP | 354204 | 1.60M | 59.74M | Jun 30, 2026 |
| 16 | RENAISSANCE TECHNOLOGIES LLC | 1037389 | 1.52M | 56.80M | Jun 30, 2026 |
| 17 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1164508 | 1.44M | 53.71M | Jun 30, 2026 |
| 18 | FMR LLC | 315066 | 1.43M | 53.57M | Jun 30, 2026 |
| 19 | MIRAE ASSET GLOBAL ETFS HOLDINGS LTD. | 1705339 | 1.43M | 53.27M | Jun 30, 2026 |
| 20 | INVESCO LTD. | 914208 | 1.24M | 46.44M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.