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 | $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, 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 |
|---|---|---|---|---|---|
| Mirae Asset Global ETFs Holdings Ltd. | 55,145 | $241.0K | 0.00% | +534+1.0% | Added |
| Susquehanna International Group, LLP | 56,010 | $244.8K | 0.00% | +7,907+16.4% | Added |
| Cerity Partners LLC | 58,123 | $254.0K | 0.00% | +8,595+17.4% | Added |
| Wealth Enhancement Advisory Services, LLC | 72,700 | $260.4K | 0.00% | +36,975+103.5% | Added |
| CWM, LLC | 60,724 | $265.4K | 0.00% | +8,110+15.4% | Added |
| Illinois Municipal Retirement Fund | 60,877 | $266.0K | 0.00% | +60,877 | New |
| State of Alaska, Department of Revenue | 61,269 | $267.0K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 64,517 | $281.9K | 0.00% | +6,759+11.7% | Added |
| Thrivent Financial for Lutherans | 73,399 | $321.0K | 0.00% | −2,161−2.9% | Reduced |
| BNP Paribas Arbitrage, SA | 78,044 | $341.1K | 0.00% | −28,238−26.6% | Reduced |
| Price T Rowe Associates Inc | 80,142 | $351.0K | 0.00% | +10,349+14.8% | Added |
| PDT Partners, LLC | 86,869 | $379.6K | 0.02% | −5,000−5.4% | Reduced |
| Creative Planning | 89,937 | $393.0K | 0.00% | −31,272−25.8% | Reduced |
| State of Wisconsin Investment Board | 104,046 | $454.7K | 0.00% | −64,517−38.3% | Reduced |
| Deutsche Bank AG | 104,437 | $456.4K | 0.00% | +11,298+12.1% | Added |
| Gsa Capital Partners LLP | 109,116 | $477.0K | 0.03% | +109,116 | New |
| Numerai GP LLC | 112,460 | $491.4K | 0.05% | −74,304−39.8% | Reduced |
| Franklin Resources Inc | 113,973 | $498.1K | 0.00% | +103,616+1,000.4% | Added |
| Prudential Financial Inc | 117,597 | $513.9K | 0.00% | +10,740+10.1% | Added |
| Voya Investment Management LLC | 141,385 | $617.9K | 0.00% | +43,555+44.5% | Added |
| Ieq Capital, LLC | 144,392 | $631.0K | 0.00% | +20,401+16.5% | Added |
| Alliancebernstein L.P. | 141,048 | $712.3K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 182,860 | $799.1K | 0.00% | −5,608−3.0% | Reduced |
| UBS Group AG | 186,881 | $816.7K | 0.00% | −273,166−59.4% | Reduced |
| Ameriprise Financial Inc | 187,270 | $818.4K | 0.00% | −15,046−7.4% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 241,504 | $1.06M | 0.00% | −54,132−18.3% | Reduced |
| Nuveen, LLC | 245,521 | $1.07M | 0.00% | −8,287−3.3% | Reduced |
| Rhumbline Advisers | 254,589 | $1.11M | 0.00% | +4,649+1.9% | Added |
| Jacobs Levy Equity Management, Inc | 257,292 | $1.12M | 0.00% | −6,885−2.6% | Reduced |
| D. E. Shaw & Co., Inc. | 260,125 | $1.14M | 0.00% | −3,001−1.1% | Reduced |
| American Century Companies Inc | 281,681 | $1.23M | 0.00% | −2,963−1.0% | Reduced |
| FMR LLC | 283,386 | $1.24M | 0.00% | +49,314+21.1% | Added |
| JPMorgan Chase & Co | 299,090 | $1.29M | 0.00% | −29,763−9.1% | Reduced |
| Arrowstreet Capital, Limited Partnership | 319,909 | $1.40M | 0.00% | −41,768−11.5% | Reduced |
| Tudor Investment Corp Et Al | 320,715 | $1.40M | 0.01% | +320,715 | New |
| Invesco Ltd. | 388,233 | $1.70M | 0.00% | −10,564−2.6% | Reduced |
| Public Sector Pension Investment Board | 394,718 | $1.72M | 0.01% | +15,444+4.1% | Added |
| Acadian Asset Management LLC | 398,988 | $1.74M | 0.00% | −275,487−40.8% | Reduced |
| HRT Financial LP | 414,052 | $1.81M | 0.00% | −23,601−5.4% | Reduced |
| Citadel Advisors LLC | 471,392 | $2.06M | 0.00% | +304,638+182.7% | Added |
| Principal Financial Group Inc | 534,759 | $2.34M | 0.00% | −132,168−19.8% | Reduced |
| Bank of New York Mellon Corp | 608,647 | $2.66M | 0.00% | −29,282−4.6% | Reduced |
| Renaissance Technologies LLC | 676,700 | $2.96M | 0.00% | +1,700+0.3% | Added |
| Vanguard Fiduciary Trust Co | 717,011 | $3.13M | 0.00% | +717,011 | New |
| CenterBook Partners LP | 729,874 | $3.19M | 0.17% | +729,874 | New |
| Simcoe Capital LLC | 882,113 | $3.85M | 3.54% | +583,652+195.6% | Added |
| AQR Capital Management LLC | 912,342 | $3.99M | 0.00% | +168,887+22.7% | Added |
| Northern Trust Corp | 1,005,193 | $4.39M | 0.00% | +47,599+5.0% | Added |
| Bank of America Corp | 1,009,054 | $4.41M | 0.00% | +152,893+17.9% | Added |
| Charles Schwab Investment Management Inc | 1,104,601 | $4.83M | 0.00% | +10,062+0.9% | Added |
| Russell Investments Group, Ltd. | 1,359,900 | $5.94M | 0.01% | +358,773+35.8% | Added |
| Brown Capital Management LLC | 1,480,506 | $6.47M | 0.92% | −592,409−28.6% | Reduced |
| Royce & Associates LP | 1,642,368 | $7.18M | 0.07% | −50,289−3.0% | Reduced |
| Morgan Stanley | 1,718,875 | $7.51M | 0.00% | +17,890+1.1% | Added |
| Vanguard Portfolio Management LLC | 2,311,858 | $10.1M | 0.00% | +2,311,858 | New |
| Goldman Sachs Group Inc | 2,344,735 | $10.2M | 0.00% | +554,821+31.0% | Added |
| Dimensional Fund Advisors LP | 2,663,329 | $11.6M | 0.00% | +16,438+0.6% | Added |
| Geode Capital Management, LLC | 2,833,955 | $12.4M | 0.00% | +43,381+1.6% | Added |
| State Street Corp | 4,123,748 | $18.0M | 0.00% | −23,216−0.6% | Reduced |
| Vanguard Capital Management LLC | 4,762,904 | $20.8M | 0.00% | +4,762,904 | New |
| Boston Partners | 5,802,773 | $25.4M | 0.03% | +794,464+15.9% | Added |
| Millennium Management LLC | 6,291,798 | $27.5M | 0.02% | +1,539,351+32.4% | Added |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $29.1M | 1.74% | 00.0% | Unchanged |
| Topline Capital Management, LLC | 7,064,481 | $30.9M | 5.10% | −377,985−5.1% | Reduced |
| BlackRock, Inc. | 17,007,269 | $74.3M | 0.00% | −165,759−1.0% | Reduced |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −764,279−100.0% | Sold out |
| Point72 Asset Management, L.P. | 0 | $0 | 0.00% | −114,256−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −78,758−100.0% | Sold out |
| Caxton Associates LLP | 0 | $0 | 0.00% | −45,376−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −38,533−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −34,565−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −27,420−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −306−100.0% | Sold out |
| Smartleaf Asset Management LLC | 0 | $0 | 0.00% | −127−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −24−100.0% | Sold out |
| Cedar Mountain Advisors, LLC | 0 | $0 | 0.00% | −21−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |
| Comerica Bank | – | – | – | – | Not filed |
| CIBC Private Wealth Group, LLC | – | – | – | – | Not filed |