FREMONT, CA
CYTEK BIOSCIENCES, INC.CTKB— Latest position per institution from SEC 13F filings
15
Institutional holders
96.53M
Total shares held
472.54M
Estimated value
4.83M
Avg. position size
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
17.07M
Value
95.25M
Filed
Jun 30, 2024
BLACKROCK, INC.
CIK 2012383
Shares
9.58M
Value
42.43M
Filed
Jun 30, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
9.34M
Value
41.37M
Filed
Jun 30, 2026
BOSTON PARTNERS
CIK 1386060
Shares
7.66M
Value
33.94M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
7.48M
Value
37.75M
Filed
Dec 31, 2025
RA CAPITAL MANAGEMENT, L.P.
CIK 1346824
Shares
6.81M
Value
45.69M
Filed
Mar 31, 2024
HHLR ADVISORS, LTD.
CIK 1762304
Shares
6.66M
Value
29.49M
Filed
Jun 30, 2026
TOPLINE CAPITAL MANAGEMENT, LLC
CIK 1792549
Shares
6.28M
Value
27.84M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
4.94M
Value
21.88M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
3.06M
Value
13.56M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
2.62M
Value
11.59M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
2.57M
Value
11.37M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
2.17M
Value
9.60M
Filed
Jun 30, 2026
ROYCE & ASSOCIATES LP
CIK 906304
Shares
2.08M
Value
9.22M
Filed
Jun 30, 2026
RUSSELL INVESTMENTS GROUP, LTD.
CIK 1692234
Shares
1.51M
Value
6.69M
Filed
Jun 30, 2026
BROWN CAPITAL MANAGEMENT LLC
CIK 885062
Shares
1.48M
Value
6.47M
Filed
Mar 31, 2026
ACADIAN ASSET MANAGEMENT LLC
CIK 916542
Shares
1.38M
Value
6.09K
Filed
Jun 30, 2026
BANK OF AMERICA CORP /DE/
CIK 70858
Shares
1.32M
Value
5.83M
Filed
Jun 30, 2026
PERCEPTIVE ADVISORS LLC
CIK 1224962
Shares
1.29M
Value
11.85M
Filed
Mar 31, 2023
MACQUARIE GROUP LTD
CIK 1418333
Shares
1.25M
Value
10.71M
Filed
Jun 30, 2023
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | BLACKROCK FINANCE, INC. | 1364742 | 17.07M | 95.25M | Jun 30, 2024 |
| 2 | BLACKROCK, INC. | 2012383 | 9.58M | 42.43M | Jun 30, 2026 |
| 3 | MILLENNIUM MANAGEMENT LLC | 1273087 | 9.34M | 41.37M | Jun 30, 2026 |
| 4 | BOSTON PARTNERS | 1386060 | 7.66M | 33.94M | Jun 30, 2026 |
| 5 | VANGUARD GROUP INC | 102909 | 7.48M | 37.75M | Dec 31, 2025 |
| 6 | RA CAPITAL MANAGEMENT, L.P. | 1346824 | 6.81M | 45.69M | Mar 31, 2024 |
| 7 | HHLR ADVISORS, LTD. | 1762304 | 6.66M | 29.49M | Jun 30, 2026 |
| 8 | TOPLINE CAPITAL MANAGEMENT, LLC | 1792549 | 6.28M | 27.84M | Jun 30, 2026 |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 4.94M | 21.88M | Jun 30, 2026 |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 3.06M | 13.56M | Jun 30, 2026 |
| 11 | DIMENSIONAL FUND ADVISORS LP | 354204 | 2.62M | 11.59M | Jun 30, 2026 |
| 12 | STATE STREET CORP | 93751 | 2.57M | 11.37M | Jun 30, 2026 |
| 13 | GOLDMAN SACHS GROUP INC | 886982 | 2.17M | 9.60M | Jun 30, 2026 |
| 14 | ROYCE & ASSOCIATES LP | 906304 | 2.08M | 9.22M | Jun 30, 2026 |
| 15 | RUSSELL INVESTMENTS GROUP, LTD. | 1692234 | 1.51M | 6.69M | Jun 30, 2026 |
| 16 | BROWN CAPITAL MANAGEMENT LLC | 885062 | 1.48M | 6.47M | Mar 31, 2026 |
| 17 | ACADIAN ASSET MANAGEMENT LLC | 916542 | 1.38M | 6.09K | Jun 30, 2026 |
| 18 | BANK OF AMERICA CORP /DE/ | 70858 | 1.32M | 5.83M | Jun 30, 2026 |
| 19 | PERCEPTIVE ADVISORS LLC | 1224962 | 1.29M | 11.85M | Mar 31, 2023 |
| 20 | MACQUARIE GROUP LTD | 1418333 | 1.25M | 10.71M | Jun 30, 2023 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.