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, Q2 2025
Institutional positions in Cytek Biosciences, Inc. as of Jun 30, 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
- 158
- −3 vs. Q1 2025
- Shares held
- 79.4M
- +1.88M (+2.4%) vs. Q1 2025
- Total value
- $270.0M
- −$40.9M (−13.2%) vs. Q1 2025
- New holders
- 24
- 66 more added
- Sold out
- 27
- 47 more reduced
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Cytek Biosciences, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of America Corp | 91,612 | $311.5K | 0.00% | −240,509−72.4% | Reduced |
| PDT Partners, LLC | 91,869 | $312.4K | 0.02% | −42,196−31.5% | Reduced |
| Teacher Retirement System of Texas | 92,638 | $315.0K | 0.00% | +1,466+1.6% | Added |
| Cubist Systematic Strategies, LLC | 96,844 | $329.3K | 0.00% | +39,431+68.7% | Added |
| Caxton Associates LLP | 103,465 | $351.8K | 0.01% | +1,571+1.5% | Added |
| California State Teachers Retirement System | 105,185 | $357.6K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 109,643 | $372.8K | 0.00% | −46,501−29.8% | Reduced |
| Prudential Financial Inc | 112,667 | $383.1K | 0.00% | +6,285+5.9% | Added |
| XTX Topco Ltd | 115,401 | $392.4K | 0.02% | −54,878−32.2% | Reduced |
| Ieq Capital, LLC | 138,761 | $471.8K | 0.00% | +81,079+140.6% | Added |
| Arrowstreet Capital, Limited Partnership | 144,252 | $490.5K | 0.00% | +96,098+199.6% | Added |
| Squarepoint Ops LLC | 145,051 | $493.2K | 0.00% | +102,047+237.3% | Added |
| Alliancebernstein L.P. | 151,848 | $516.3K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 205,741 | $699.5K | 0.00% | −511,419−71.3% | Reduced |
| Susquehanna International Group, LLP | 211,600 | $719.4K | 0.00% | −3,688−1.7% | Reduced |
| Swiss National Bank | 212,100 | $721.1K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 234,697 | $798.0K | 0.01% | +234,697 | New |
| American Century Companies Inc | 251,273 | $854.3K | 0.00% | +19,098+8.2% | Added |
| Nuveen, LLC | 253,808 | $862.9K | 0.00% | −51,177−16.8% | Reduced |
| Marshall Wace, LLP | 261,352 | $888.6K | 0.00% | +261,352 | New |
| Rhumbline Advisers | 282,651 | $961.0K | 0.00% | −13,633−4.6% | Reduced |
| UBS Asset Management Americas Inc | 284,350 | $966.8K | 0.00% | +92,726+48.4% | Added |
| Jane Street Group, LLC | 284,838 | $968.4K | 0.00% | −59,331−17.2% | Reduced |
| Panagora Asset Management Inc | 288,262 | $980.1K | 0.00% | −120,664−29.5% | Reduced |
| Globeflex Capital L P | 290,511 | $987.7K | 0.08% | 00.0% | Unchanged |
| Legal & General Group Plc | 310,291 | $1.05M | 0.00% | +13,462+4.5% | Added |
| Acadian Asset Management LLC | 313,644 | $1.06M | 0.00% | +272,977+671.2% | Added |
| State of Wisconsin Investment Board | 316,676 | $1.08M | 0.00% | +5,351+1.7% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 319,066 | $1.08M | 0.00% | −40,511−11.3% | Reduced |
| Invesco Ltd. | 343,659 | $1.17M | 0.00% | +6,706+2.0% | Added |
| Public Sector Pension Investment Board | 349,736 | $1.19M | 0.01% | +18,822+5.7% | Added |
| Algert Global LLC | 372,238 | $1.27M | 0.03% | −39,187−9.5% | Reduced |
| Barclays PLC | 387,908 | $1.32M | 0.00% | +235,045+153.8% | Added |
| Ameriprise Financial Inc | 412,311 | $1.40M | 0.00% | +134,963+48.7% | Added |
| Numerai GP LLC | 422,318 | $1.44M | 0.21% | +422,318 | New |
| JPMorgan Chase & Co | 430,108 | $1.46M | 0.00% | −241,205−35.9% | Reduced |
| Principal Financial Group Inc | 572,387 | $1.95M | 0.00% | +51,644+9.9% | Added |
| Citadel Advisors LLC | 617,085 | $2.10M | 0.00% | +14,568+2.4% | Added |
| UBS Group AG | 632,052 | $2.15M | 0.00% | +20,524+3.4% | Added |
| Bank of New York Mellon Corp | 699,913 | $2.38M | 0.00% | +7,511+1.1% | Added |
| Jacobs Levy Equity Management, Inc | 888,339 | $3.02M | 0.01% | +179,857+25.4% | Added |
| Charles Schwab Investment Management Inc | 909,590 | $3.09M | 0.00% | −195,299−17.7% | Reduced |
| Millennium Management LLC | 924,772 | $3.14M | 0.00% | +429,335+86.7% | Added |
| Goldman Sachs Group Inc | 1,016,557 | $3.46M | 0.00% | −141,444−12.2% | Reduced |
| Renaissance Technologies LLC | 1,063,139 | $3.61M | 0.00% | +375,539+54.6% | Added |
| Northern Trust Corp | 1,095,994 | $3.73M | 0.00% | −55,573−4.8% | Reduced |
| Morgan Stanley | 1,150,121 | $3.91M | 0.00% | +404,644+54.3% | Added |
| AQR Capital Management LLC | 1,238,393 | $4.21M | 0.00% | +585,116+89.6% | Added |
| Royce & Associates LP | 1,389,806 | $4.73M | 0.05% | +823,987+145.6% | Added |
| New York State Common Retirement Fund | 2,088,390 | $7.10M | 0.01% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 2,729,593 | $9.28M | 0.00% | +42,916+1.6% | Added |
| Dimensional Fund Advisors LP | 3,454,806 | $11.7M | 0.00% | +600,997+21.1% | Added |
| State Street Corp | 4,173,763 | $14.2M | 0.00% | −208,411−4.8% | Reduced |
| Topline Capital Management, LLC | 5,231,260 | $17.8M | 3.05% | +3,760,485+255.7% | Added |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $22.6M | 0.73% | 00.0% | Unchanged |
| Brown Capital Management LLC | 7,109,995 | $24.2M | 0.70% | −353,972−4.7% | Reduced |
| Vanguard Group Inc | 7,765,138 | $26.4M | 0.00% | −1,856,870−19.3% | Reduced |
| BlackRock, Inc. | 17,035,535 | $57.9M | 0.00% | −1,033,747−5.7% | Reduced |
| CenterBook Partners LP | 0 | $0 | 0.00% | −845,405−100.0% | Sold out |
| Acuitas Investments, LLC | 0 | $0 | 0.00% | −331,219−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −82,286−100.0% | Sold out |
| Allianz Asset Management GmbH | 0 | $0 | 0.00% | −74,000−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −61,718−100.0% | Sold out |
| Summit Global Investments | 0 | $0 | 0.00% | −54,873−100.0% | Sold out |
| JT Stratford LLC | 0 | $0 | 0.00% | −36,670−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −33,452−100.0% | Sold out |
| Maryland State Retirement & Pension System | 0 | $0 | 0.00% | −31,322−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −22,314−100.0% | Sold out |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0 | $0 | 0.00% | −21,873−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −21,190−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −19,607−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −19,573−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −19,200−100.0% | Sold out |
| Lazard Asset Management LLC | 0 | $0 | 0.00% | −18,972−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −17,496−100.0% | Sold out |
| Corton Capital Inc. | 0 | $0 | 0.00% | −16,129−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −13,972−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −13,896−100.0% | Sold out |
| Teza Capital Management LLC | 0 | $0 | 0.00% | −10,893−100.0% | Sold out |
| Quadrant Capital Group LLC | 0 | $0 | 0.00% | −1,594−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −718−100.0% | Sold out |
| Smartleaf Asset Management LLC | 0 | $0 | 0.00% | −361−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −319−100.0% | Sold out |
| Stephens Consulting, LLC | 0 | $0 | 0.00% | −90−100.0% | Sold out |
| WealthTrak Capital Management LLC | 0 | $0 | 0.00% | −35−100.0% | Sold out |