Cytek Biosciences, Inc.
CTKB- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001831915
No open-market purchases or sales by Cytek Biosciences, Inc. insiders were filed in the last 90 days; 154 institutions reported holding it in 13F filings for Q2 2026, worth $361.0M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding it.
13F holders, Q4 2025
Institutional positions in Cytek Biosciences, Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 155
- +6 vs. Q3 2025
- Shares held
- 82.0M
- +2.23M (+2.8%) vs. Q3 2025
- Total value
- $414.3M
- +$137.6M (+49.7%) vs. Q3 2025
- New holders
- 21
- 52 more added
- Sold out
- 15
- 61 more reduced
4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting CTKB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 154 | $361.0M |
| Q1 2026 | 165 | $371.8M |
| Q4 2025 | 155 | $414.3M |
| Q3 2025 | 153 | $277.4M |
| Q2 2025 | 158 | $270.0M |
| Q1 2025 | 161 | $310.8M |
| Q4 2024 | 153 | $501.4M |
| Q3 2024 | 136 | $415.3M |
| Q2 2024 | 129 | $425.1M |
| Q1 2024 | 125 | $540.9M |
| Q4 2023 | 105 | $719.9M |
| Q3 2023 | 107 | $427.7M |
| Q2 2023 | 101 | $657.9M |
| Q1 2023 | 102 | $629.6M |
| Q4 2022 | 103 | $654.1M |
| Q3 2022 | 88 | $898.5M |
| Q2 2022 | 85 | $567.8M |
| Q1 2022 | 74 | $514.5M |
| Q4 2021 | 52 | $571.9M |
| Q3 2021 | 54 | $733.8M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Cytek Biosciences, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Thrivent Financial for Lutherans | 75,560 | $382.0K | 0.00% | −3,374−4.3% | Reduced |
| Jane Street Group, LLC | 78,758 | $397.7K | 0.00% | −278,267−77.9% | Reduced |
| PDT Partners, LLC | 91,869 | $463.9K | 0.03% | 00.0% | Unchanged |
| Deutsche Bank AG | 93,139 | $470.4K | 0.00% | +4,119+4.6% | Added |
| Voya Investment Management LLC | 97,830 | $494.0K | 0.00% | −18,184−15.7% | Reduced |
| BNP Paribas Arbitrage, SA | 106,282 | $536.7K | 0.00% | +82,466+346.3% | Added |
| Prudential Financial Inc | 106,857 | $539.6K | 0.00% | −5,810−5.2% | Reduced |
| Point72 Asset Management, L.P. | 114,256 | $577.0K | 0.00% | −73,362−39.1% | Reduced |
| Creative Planning | 121,209 | $612.1K | 0.00% | +12,578+11.6% | Added |
| Ieq Capital, LLC | 123,991 | $626.2K | 0.00% | −28,832−18.9% | Reduced |
| Wells Fargo & Company | 132,675 | $670.0K | 0.00% | +42,274+46.8% | Added |
| Alliancebernstein L.P. | 141,048 | $712.3K | 0.00% | −8,600−5.7% | Reduced |
| Citadel Advisors LLC | 166,754 | $842.1K | 0.00% | +84,450+102.6% | Added |
| State of Wisconsin Investment Board | 168,563 | $851.2K | 0.00% | −169,655−50.2% | Reduced |
| Barclays PLC | 183,239 | $925.4K | 0.00% | +17,667+10.7% | Added |
| Numerai GP LLC | 186,764 | $943.2K | 0.11% | +80,269+75.4% | Added |
| Legal & General Group Plc | 188,468 | $951.8K | 0.00% | −3,907−2.0% | Reduced |
| Ameriprise Financial Inc | 202,316 | $1.02M | 0.00% | −126,307−38.4% | Reduced |
| FMR LLC | 234,072 | $1.18M | 0.00% | +53,286+29.5% | Added |
| Rhumbline Advisers | 249,940 | $1.26M | 0.00% | −30,427−10.9% | Reduced |
| Nuveen, LLC | 253,808 | $1.28M | 0.00% | 00.0% | Unchanged |
| D. E. Shaw & Co., Inc. | 263,126 | $1.33M | 0.00% | +142,104+117.4% | Added |
| Jacobs Levy Equity Management, Inc | 264,177 | $1.33M | 0.01% | −560,259−68.0% | Reduced |
| American Century Companies Inc | 284,644 | $1.44M | 0.00% | +7,658+2.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 295,636 | $1.49M | 0.00% | −2,239−0.8% | Reduced |
| Simcoe Capital LLC | 298,461 | $1.51M | 1.42% | +298,461 | New |
| JPMorgan Chase & Co | 328,853 | $1.66M | 0.00% | −29,870−8.3% | Reduced |
| Arrowstreet Capital, Limited Partnership | 361,677 | $1.83M | 0.00% | +387+0.1% | Added |
| Public Sector Pension Investment Board | 379,274 | $1.92M | 0.01% | −47,532−11.1% | Reduced |
| Invesco Ltd. | 398,797 | $2.01M | 0.00% | +9,671+2.5% | Added |
| HRT Financial LP | 437,653 | $2.21M | 0.01% | +437,653 | New |
| UBS Group AG | 460,047 | $2.32M | 0.00% | −8,642−1.8% | Reduced |
| Bank of New York Mellon Corp | 637,929 | $3.22M | 0.00% | −35,640−5.3% | Reduced |
| Principal Financial Group Inc | 666,927 | $3.37M | 0.00% | +43,621+7.0% | Added |
| Acadian Asset Management LLC | 674,475 | $3.40M | 0.01% | +108,902+19.3% | Added |
| Renaissance Technologies LLC | 675,000 | $3.41M | 0.01% | −120,544−15.2% | Reduced |
| AQR Capital Management LLC | 743,455 | $3.75M | 0.00% | −276,435−27.1% | Reduced |
| Wellington Management Group LLP | 764,279 | $3.86M | 0.00% | −1,776,767−69.9% | Reduced |
| Bank of America Corp | 856,161 | $4.32M | 0.00% | +686,001+403.2% | Added |
| Northern Trust Corp | 957,594 | $4.84M | 0.00% | −55,989−5.5% | Reduced |
| Russell Investments Group, Ltd. | 1,001,127 | $5.06M | 0.01% | +841,614+527.6% | Added |
| Charles Schwab Investment Management Inc | 1,094,539 | $5.53M | 0.00% | −10,482−0.9% | Reduced |
| Royce & Associates LP | 1,692,657 | $8.55M | 0.09% | −70,605−4.0% | Reduced |
| Morgan Stanley | 1,700,985 | $8.59M | 0.00% | +237,844+16.3% | Added |
| Goldman Sachs Group Inc | 1,789,914 | $9.04M | 0.00% | +52,605+3.0% | Added |
| Brown Capital Management LLC | 2,072,915 | $10.5M | 0.86% | −2,885,101−58.2% | Reduced |
| Dimensional Fund Advisors LP | 2,646,891 | $13.4M | 0.00% | −570,897−17.7% | Reduced |
| Geode Capital Management, LLC | 2,790,574 | $14.1M | 0.00% | +7,125+0.3% | Added |
| State Street Corp | 4,146,964 | $20.9M | 0.00% | +62,596+1.5% | Added |
| Millennium Management LLC | 4,752,447 | $24.0M | 0.02% | +1,334,065+39.0% | Added |
| Boston Partners | 5,008,309 | $25.3M | 0.03% | +4,971,126+13,369.4% | Added |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $33.6M | 1.08% | 00.0% | Unchanged |
| Topline Capital Management, LLC | 7,442,466 | $37.6M | 3.40% | +498,186+7.2% | Added |
| Vanguard Group Inc | 7,475,477 | $37.8M | 0.00% | +541,973+7.8% | Added |
| BlackRock, Inc. | 17,173,028 | $86.7M | 0.00% | +625,335+3.8% | Added |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −249,812−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −158,641−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −134,286−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −109,098−100.0% | Sold out |
| Public Employees Retirement System of Ohio | 0 | $0 | 0.00% | −81,106−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −62,970−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −61,600−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −47,480−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −37,509−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −28,452−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −23,379−100.0% | Sold out |
| CIBC Asset Management Inc | 0 | $0 | 0.00% | −11,100−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −1,036−100.0% | Sold out |
| Huntington National Bank | 0 | $0 | 0.00% | −81−100.0% | Sold out |
| Sunbelt Securities, Inc. | 0 | $0 | 0.00% | −12−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |
| Point72 (DIFC) Ltd | – | – | – | – | Not filed |
| CIBC Bancorp USA Inc. | – | – | – | – | Not filed |
| Point72 Asia (Singapore) Pte. Ltd. | – | – | – | – | Not filed |