SUGAR LAND, TX
APPLIED OPTOELECTRONICS, INC.AAOI— Latest position per institution from SEC 13F filings
15
Institutional holders
52.06M
Total shares held
3.52B
Estimated value
2.60M
Avg. position size
BLACKROCK, INC.
CIK 2012383
Shares
7.19M
Value
608.40M
Filed
Mar 31, 2026
JANE STREET GROUP, LLC
CIK 1595888
Shares
5.59M
Value
472.56M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.98M
Value
173.70M
Filed
Dec 31, 2025
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
4.12M
Value
348.67M
Filed
Mar 31, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.06M
Value
258.97M
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
3.01M
Value
24.98M
Filed
Jun 30, 2024
D. E. SHAW & CO., INC.
CIK 1009207
Shares
2.63M
Value
222.49M
Filed
Mar 31, 2026
CITADEL ADVISORS LLC
CIK 1423053
Shares
2.49M
Value
210.74M
Filed
Mar 31, 2026
OBERWEIS ASSET MANAGEMENT INC/
CIK 937886
Shares
2.35M
Value
198.78M
Filed
Mar 31, 2026
INVESCO LTD.
CIK 914208
Shares
2.01M
Value
170.40M
Filed
Mar 31, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
1.80M
Value
152.42M
Filed
Mar 31, 2026
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
1.73M
Value
146.54K
Filed
Mar 31, 2026
HAWK RIDGE CAPITAL MANAGEMENT LP
CIK 1609074
Shares
1.70M
Value
59.29M
Filed
Dec 31, 2025
STATE STREET CORP
CIK 93751
Shares
1.64M
Value
139.09M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.62M
Value
137.17M
Filed
Mar 31, 2026
WESTFIELD CAPITAL MANAGEMENT CO LP
CIK 1177719
Shares
1.33M
Value
19.02M
Filed
Sep 30, 2024
VALUE ALIGNED RESEARCH ADVISORS, LLC
CIK 1963565
Shares
1.29M
Value
109.41M
Filed
Mar 31, 2026
HOOD RIVER CAPITAL MANAGEMENT LLC
CIK 1578177
Shares
1.28M
Value
107.90M
Filed
Mar 31, 2026
WHALE ROCK CAPITAL MANAGEMENT LLC
CIK 1387322
Shares
1.13M
Value
16.15M
Filed
Sep 30, 2024
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
1.08M
Value
91.76M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK, INC. | 2012383 | 7.19M | 608.40M | Mar 31, 2026 |
| 2 | JANE STREET GROUP, LLC | 1595888 | 5.59M | 472.56M | Mar 31, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 4.98M | 173.70M | Dec 31, 2025 |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 4.12M | 348.67M | Mar 31, 2026 |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.06M | 258.97M | Mar 31, 2026 |
| 6 | BLACKROCK FINANCE, INC. | 1364742 | 3.01M | 24.98M | Jun 30, 2024 |
| 7 | D. E. SHAW & CO., INC. | 1009207 | 2.63M | 222.49M | Mar 31, 2026 |
| 8 | CITADEL ADVISORS LLC | 1423053 | 2.49M | 210.74M | Mar 31, 2026 |
| 9 | OBERWEIS ASSET MANAGEMENT INC/ | 937886 | 2.35M | 198.78M | Mar 31, 2026 |
| 10 | INVESCO LTD. | 914208 | 2.01M | 170.40M | Mar 31, 2026 |
| 11 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 1.80M | 152.42M | Mar 31, 2026 |
| 12 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 1.73M | 146.54K | Mar 31, 2026 |
| 13 | HAWK RIDGE CAPITAL MANAGEMENT LP | 1609074 | 1.70M | 59.29M | Dec 31, 2025 |
| 14 | STATE STREET CORP | 93751 | 1.64M | 139.09M | Mar 31, 2026 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.62M | 137.17M | Mar 31, 2026 |
| 16 | WESTFIELD CAPITAL MANAGEMENT CO LP | 1177719 | 1.33M | 19.02M | Sep 30, 2024 |
| 17 | VALUE ALIGNED RESEARCH ADVISORS, LLC | 1963565 | 1.29M | 109.41M | Mar 31, 2026 |
| 18 | HOOD RIVER CAPITAL MANAGEMENT LLC | 1578177 | 1.28M | 107.90M | Mar 31, 2026 |
| 19 | WHALE ROCK CAPITAL MANAGEMENT LLC | 1387322 | 1.13M | 16.15M | Sep 30, 2024 |
| 20 | GOLDMAN SACHS GROUP INC | 886982 | 1.08M | 91.76M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.