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, Q1 2026
Institutional positions in Cytek Biosciences, Inc. as of Mar 31, 2026. 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
- 165
- +13 vs. Q4 2025
- Shares held
- 85.1M
- +10.5M (+14.1%) vs. Q4 2025
- Total value
- $371.8M
- −$4.62M (−1.2%) vs. Q4 2025
- New holders
- 24
- 68 more added
- Sold out
- 11
- 51 more reduced
3 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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 | $309.8M |
| Q2 2025 | 158 | $270.0M |
| Q1 2025 | 161 | $311.2M |
| Q4 2024 | 153 | $501.4M |
| Q3 2024 | 136 | $418.6M |
| Q2 2024 | 129 | $428.5M |
| Q1 2024 | 125 | $552.8M |
| Q4 2023 | 105 | $728.9M |
| Q3 2023 | 107 | $427.7M |
| Q2 2023 | 101 | $657.9M |
| Q1 2023 | 102 | $640.2M |
| Q4 2022 | 103 | $659.0M |
| Q3 2022 | 88 | $898.7M |
| Q2 2022 | 85 | $567.8M |
| Q1 2022 | 74 | $514.5M |
| Q4 2021 | 52 | $571.9M |
| Q3 2021 | 54 | $744.4M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Cytek Biosciences, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 17,007,269 | $74.3M | 0.00% | −165,759−1.0% | Reduced |
| Topline Capital Management, LLC | 7,064,481 | $30.9M | 5.10% | −377,985−5.1% | Reduced |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $29.1M | 1.74% | 00.0% | Unchanged |
| Millennium Management LLC | 6,291,798 | $27.5M | 0.02% | +1,539,351+32.4% | Added |
| Boston Partners | 5,802,773 | $25.4M | 0.03% | +794,464+15.9% | Added |
| Vanguard Capital Management LLC | 4,762,904 | $20.8M | 0.00% | +4,762,904 | New |
| State Street Corp | 4,123,748 | $18.0M | 0.00% | −23,216−0.6% | Reduced |
| Geode Capital Management, LLC | 2,833,955 | $12.4M | 0.00% | +43,381+1.6% | Added |
| Dimensional Fund Advisors LP | 2,663,329 | $11.6M | 0.00% | +16,438+0.6% | Added |
| Goldman Sachs Group Inc | 2,344,735 | $10.2M | 0.00% | +554,821+31.0% | Added |
| Vanguard Portfolio Management LLC | 2,311,858 | $10.1M | 0.00% | +2,311,858 | New |
| Morgan Stanley | 1,718,875 | $7.51M | 0.00% | +17,890+1.1% | Added |
| Royce & Associates LP | 1,642,368 | $7.18M | 0.07% | −50,289−3.0% | Reduced |
| Brown Capital Management LLC | 1,480,506 | $6.47M | 0.92% | −592,409−28.6% | Reduced |
| Russell Investments Group, Ltd. | 1,359,900 | $5.94M | 0.01% | +358,773+35.8% | Added |
| Charles Schwab Investment Management Inc | 1,104,601 | $4.83M | 0.00% | +10,062+0.9% | Added |
| Bank of America Corp | 1,009,054 | $4.41M | 0.00% | +152,893+17.9% | Added |
| Northern Trust Corp | 1,005,193 | $4.39M | 0.00% | +47,599+5.0% | Added |
| AQR Capital Management LLC | 912,342 | $3.99M | 0.00% | +168,887+22.7% | Added |
| Simcoe Capital LLC | 882,113 | $3.85M | 3.54% | +583,652+195.6% | Added |
| CenterBook Partners LP | 729,874 | $3.19M | 0.17% | +729,874 | New |
| Vanguard Fiduciary Trust Co | 717,011 | $3.13M | 0.00% | +717,011 | New |
| Renaissance Technologies LLC | 676,700 | $2.96M | 0.00% | +1,700+0.3% | Added |
| Bank of New York Mellon Corp | 608,647 | $2.66M | 0.00% | −29,282−4.6% | Reduced |
| Principal Financial Group Inc | 534,759 | $2.34M | 0.00% | −132,168−19.8% | Reduced |
| Citadel Advisors LLC | 471,392 | $2.06M | 0.00% | +304,638+182.7% | Added |
| HRT Financial LP | 414,052 | $1.81M | 0.00% | −23,601−5.4% | Reduced |
| Acadian Asset Management LLC | 398,988 | $1.74M | 0.00% | −275,487−40.8% | Reduced |
| Public Sector Pension Investment Board | 394,718 | $1.72M | 0.01% | +15,444+4.1% | Added |
| Invesco Ltd. | 388,233 | $1.70M | 0.00% | −10,564−2.6% | Reduced |
| Tudor Investment Corp Et Al | 320,715 | $1.40M | 0.01% | +320,715 | New |
| Arrowstreet Capital, Limited Partnership | 319,909 | $1.40M | 0.00% | −41,768−11.5% | Reduced |
| JPMorgan Chase & Co | 299,090 | $1.29M | 0.00% | −29,763−9.1% | Reduced |
| FMR LLC | 283,386 | $1.24M | 0.00% | +49,314+21.1% | Added |
| American Century Companies Inc | 281,681 | $1.23M | 0.00% | −2,963−1.0% | Reduced |
| D. E. Shaw & Co., Inc. | 260,125 | $1.14M | 0.00% | −3,001−1.1% | Reduced |
| Jacobs Levy Equity Management, Inc | 257,292 | $1.12M | 0.00% | −6,885−2.6% | Reduced |
| Rhumbline Advisers | 254,589 | $1.11M | 0.00% | +4,649+1.9% | Added |
| Nuveen, LLC | 245,521 | $1.07M | 0.00% | −8,287−3.3% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 241,504 | $1.06M | 0.00% | −54,132−18.3% | Reduced |
| Ameriprise Financial Inc | 187,270 | $818.4K | 0.00% | −15,046−7.4% | Reduced |
| UBS Group AG | 186,881 | $816.7K | 0.00% | −273,166−59.4% | Reduced |
| Legal & General Group Plc | 182,860 | $799.1K | 0.00% | −5,608−3.0% | Reduced |
| Alliancebernstein L.P. | 141,048 | $712.3K | 0.00% | 00.0% | Unchanged |
| Ieq Capital, LLC | 144,392 | $631.0K | 0.00% | +20,401+16.5% | Added |
| Voya Investment Management LLC | 141,385 | $617.9K | 0.00% | +43,555+44.5% | Added |
| Prudential Financial Inc | 117,597 | $513.9K | 0.00% | +10,740+10.1% | Added |
| Franklin Resources Inc | 113,973 | $498.1K | 0.00% | +103,616+1,000.4% | Added |
| Numerai GP LLC | 112,460 | $491.4K | 0.05% | −74,304−39.8% | Reduced |
| Gsa Capital Partners LLP | 109,116 | $477.0K | 0.03% | +109,116 | New |
| Deutsche Bank AG | 104,437 | $456.4K | 0.00% | +11,298+12.1% | Added |
| State of Wisconsin Investment Board | 104,046 | $454.7K | 0.00% | −64,517−38.3% | Reduced |
| Creative Planning | 89,937 | $393.0K | 0.00% | −31,272−25.8% | Reduced |
| PDT Partners, LLC | 86,869 | $379.6K | 0.02% | −5,000−5.4% | Reduced |
| Price T Rowe Associates Inc | 80,142 | $351.0K | 0.00% | +10,349+14.8% | Added |
| BNP Paribas Arbitrage, SA | 78,044 | $341.1K | 0.00% | −28,238−26.6% | Reduced |
| Thrivent Financial for Lutherans | 73,399 | $321.0K | 0.00% | −2,161−2.9% | Reduced |
| MetLife Investment Management | 64,517 | $281.9K | 0.00% | +6,759+11.7% | Added |
| State of Alaska, Department of Revenue | 61,269 | $267.0K | 0.00% | 00.0% | Unchanged |
| Illinois Municipal Retirement Fund | 60,877 | $266.0K | 0.00% | +60,877 | New |
| CWM, LLC | 60,724 | $265.4K | 0.00% | +8,110+15.4% | Added |
| Wealth Enhancement Advisory Services, LLC | 72,700 | $260.4K | 0.00% | +36,975+103.5% | Added |
| Cerity Partners LLC | 58,123 | $254.0K | 0.00% | +8,595+17.4% | Added |
| Susquehanna International Group, LLP | 56,010 | $244.8K | 0.00% | +7,907+16.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 55,145 | $241.0K | 0.00% | +534+1.0% | Added |
| Panagora Asset Management Inc | 51,593 | $225.5K | 0.00% | 00.0% | Unchanged |
| Quantinno Capital Management LP | 51,212 | $223.8K | 0.00% | +21,564+72.7% | Added |
| Louisiana State Employees Retirement System | 48,800 | $213.3K | 0.00% | −1,600−3.2% | Reduced |
| Wells Fargo & Company | 45,277 | $197.9K | 0.00% | −87,398−65.9% | Reduced |
| Vanguard Global Advisers, LLC | 45,212 | $197.6K | 0.00% | +45,212 | New |
| New York State Teachers Retirement System | 44,829 | $196.0K | 0.00% | −3,634−7.5% | Reduced |
| Algert Global LLC | 42,560 | $186.0K | 0.00% | +42,560 | New |
| Canada Pension Plan Investment Board | 41,300 | $180.5K | 0.00% | +41,300 | New |
| nVerses Capital, LLC | 38,319 | $167.5K | 0.15% | +38,319 | New |
| New York State Common Retirement Fund | 34,922 | $152.6K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 34,670 | $151.5K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 34,606 | $151.0K | 0.00% | −29,681−46.2% | Reduced |
| Colony Group, LLC | 33,677 | $147.2K | 0.00% | +180+0.5% | Added |
| Manufacturers Life Insurance Company, The | 32,199 | $140.7K | 0.00% | −3,433−9.6% | Reduced |
| Amalgamated Bank | 31,901 | $139.0K | 0.00% | −535−1.6% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 29,469 | $128.8K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 29,115 | $127.2K | 0.00% | +7,389+34.0% | Added |
| Jump Financial, LLC | 28,892 | $126.3K | 0.00% | +28,892 | New |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 27,193 | $118.8K | 0.00% | −30−0.1% | Reduced |
| Yousif Capital Management, LLC | 27,078 | $118.3K | 0.00% | +468+1.8% | Added |
| Virtu Financial LLC | 27,026 | $118.0K | 0.00% | +27,026 | New |
| STRS Ohio | 26,200 | $114.5K | 0.00% | 00.0% | Unchanged |
| Intech Investment Management LLC | 25,629 | $112.0K | 0.00% | −26,111−50.5% | Reduced |
| Two Sigma Investments, LP | 25,600 | $111.9K | 0.00% | −4,432−14.8% | Reduced |
| Squarepoint Ops LLC | 25,296 | $110.5K | 0.00% | +25,296 | New |
| Oregon Public Employees Retirement Fund | 25,175 | $110.0K | 0.00% | 00.0% | Unchanged |
| Fifth Third Bancorp | 24,909 | $108.9K | 0.00% | +23,997+2,631.3% | Added |
| Teachers Retirement System of the State of Kentucky | 24,338 | $107.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 24,143 | $105.5K | 0.00% | −159,096−86.8% | Reduced |
| State of Tennessee, Treasury Department | 22,900 | $100.1K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 20,794 | $90.9K | 0.02% | +15,650+304.2% | Added |
| Bailard, Inc. | 19,900 | $87.0K | 0.00% | −9,400−32.1% | Reduced |
| Axq Capital, LP | 19,708 | $86.1K | 0.01% | +584+3.1% | Added |
| JustInvest LLC | 19,066 | $83.3K | 0.00% | +6,821+55.7% | Added |
| ProShare Advisors LLC | 18,216 | $79.6K | 0.00% | −4,517−19.9% | Reduced |