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 2026
Institutional positions in Cytek Biosciences, Inc. as of Jun 30, 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
- 154
- −10 vs. Q1 2026
- Shares held
- 81.5M
- −3.49M (−4.1%) vs. Q1 2026
- Total value
- $361.0M
- −$10.5M (−2.8%) vs. Q1 2026
- New holders
- 28
- 45 more added
- Sold out
- 38
- 65 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Cytek Biosciences, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9,578,643 | $42.4M | 0.00% | −7,428,626−43.7% | Reduced |
| Millennium Management LLC | 9,338,010 | $41.4M | 0.03% | +3,046,212+48.4% | Added |
| Boston Partners | 7,660,943 | $33.9M | 0.03% | +1,858,170+32.0% | Added |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $29.5M | 3.54% | 00.0% | Unchanged |
| Topline Capital Management, LLC | 6,283,450 | $27.8M | 7.22% | −781,031−11.1% | Reduced |
| Vanguard Capital Management LLC | 4,939,597 | $21.9M | 0.00% | +176,693+3.7% | Added |
| Geode Capital Management, LLC | 3,059,573 | $13.6M | 0.00% | +225,618+8.0% | Added |
| Dimensional Fund Advisors LP | 2,616,257 | $11.6M | 0.00% | −47,072−1.8% | Reduced |
| State Street Corp | 2,566,121 | $11.4M | 0.00% | −1,557,627−37.8% | Reduced |
| Goldman Sachs Group Inc | 2,167,515 | $9.60M | 0.00% | −177,220−7.6% | Reduced |
| Royce & Associates LP | 2,081,579 | $9.22M | 0.07% | +439,211+26.7% | Added |
| Russell Investments Group, Ltd. | 1,511,315 | $6.70M | 0.01% | +151,415+11.1% | Added |
| Acadian Asset Management LLC | 1,376,048 | $6.09M | 0.01% | +977,060+244.9% | Added |
| Bank of America Corp | 1,315,332 | $5.83M | 0.00% | +306,278+30.4% | Added |
| Vanguard Portfolio Management LLC | 1,141,592 | $5.06M | 0.00% | −1,170,266−50.6% | Reduced |
| Charles Schwab Investment Management Inc | 1,073,253 | $4.75M | 0.00% | −31,348−2.8% | Reduced |
| Northern Trust Corp | 1,003,294 | $4.44M | 0.00% | −1,899−0.2% | Reduced |
| HRT Financial LP | 997,769 | $4.42M | 0.01% | +583,717+141.0% | Added |
| Arrowstreet Capital, Limited Partnership | 973,833 | $4.31M | 0.00% | +653,924+204.4% | Added |
| Jane Street Group, LLC | 906,162 | $4.01M | 0.00% | +906,162 | New |
| Tudor Investment Corp Et Al | 837,913 | $3.71M | 0.02% | +517,198+161.3% | Added |
| AQR Capital Management LLC | 813,971 | $3.61M | 0.00% | −98,371−10.8% | Reduced |
| Vanguard Fiduciary Trust Co | 740,662 | $3.28M | 0.00% | +23,651+3.3% | Added |
| Citadel Advisors LLC | 721,470 | $3.20M | 0.00% | +250,078+53.1% | Added |
| Morgan Stanley | 701,792 | $3.11M | 0.00% | −1,017,083−59.2% | Reduced |
| Qube Research & Technologies Ltd | 689,821 | $3.06M | 0.00% | +689,821 | New |
| Susquehanna International Group, LLP | 681,705 | $3.02M | 0.00% | +625,695+1,117.1% | Added |
| D. E. Shaw & Co., Inc. | 669,182 | $2.96M | 0.00% | +409,057+157.3% | Added |
| Renaissance Technologies LLC | 661,300 | $2.93M | 0.00% | −15,400−2.3% | Reduced |
| FMR LLC | 504,385 | $2.23M | 0.00% | +220,999+78.0% | Added |
| Marshall Wace, LLP | 441,704 | $1.96M | 0.00% | +441,704 | New |
| Point72 Asset Management, L.P. | 422,361 | $1.87M | 0.00% | +422,361 | New |
| Jain Global LLC | 411,465 | $1.82M | 0.02% | +411,465 | New |
| Bank of New York Mellon Corp | 371,427 | $1.65M | 0.00% | −237,220−39.0% | Reduced |
| American Century Companies Inc | 292,103 | $1.29M | 0.00% | +10,422+3.7% | Added |
| Nuveen, LLC | 289,415 | $1.28M | 0.00% | +43,894+17.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 266,938 | $1.18M | 0.00% | +25,434+10.5% | Added |
| Jacobs Levy Equity Management, Inc | 241,581 | $1.07M | 0.00% | −15,711−6.1% | Reduced |
| BNP Paribas Arbitrage, SA | 215,010 | $952.5K | 0.00% | +136,966+175.5% | Added |
| Y-Intercept (Hong Kong) Ltd | 193,128 | $855.6K | 0.02% | +193,128 | New |
| Invesco Ltd. | 185,671 | $822.5K | 0.00% | −202,562−52.2% | Reduced |
| Two Sigma Investments, LP | 168,218 | $745.2K | 0.00% | +142,618+557.1% | Added |
| Gsa Capital Partners LLP | 167,593 | $742.0K | 0.05% | +58,477+53.6% | Added |
| Numerai GP LLC | 159,465 | $706.4K | 0.06% | +47,005+41.8% | Added |
| Franklin Resources Inc | 156,061 | $691.4K | 0.00% | +42,088+36.9% | Added |
| Rhumbline Advisers | 153,225 | $678.8K | 0.00% | −101,364−39.8% | Reduced |
| CenterBook Partners LP | 149,180 | $660.9K | 0.03% | −580,694−79.6% | Reduced |
| Jump Financial, LLC | 148,083 | $656.0K | 0.01% | +119,191+412.5% | Added |
| XTX Topco Ltd | 142,723 | $632.3K | 0.01% | +142,723 | New |
| Alliancebernstein L.P. | 141,048 | $616.4K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 141,864 | $615.7K | 0.00% | −157,226−52.6% | Reduced |
| Deutsche Bank AG | 111,932 | $495.9K | 0.00% | +7,495+7.2% | Added |
| Wells Fargo & Company | 102,704 | $455.0K | 0.00% | +57,427+126.8% | Added |
| Price T Rowe Associates Inc | 101,198 | $449.0K | 0.00% | +21,056+26.3% | Added |
| Ieq Capital, LLC | 90,100 | $399.1K | 0.00% | −54,292−37.6% | Reduced |
| UBS Group AG | 88,914 | $393.9K | 0.00% | −97,967−52.4% | Reduced |
| PDT Partners, LLC | 86,869 | $384.8K | 0.02% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 82,776 | $366.7K | 0.00% | +57,480+227.2% | Added |
| Aquatic Capital Management LLC | 76,762 | $340.1K | 0.01% | +76,762 | New |
| Voya Investment Management LLC | 74,034 | $328.0K | 0.00% | −67,351−47.6% | Reduced |
| MetLife Investment Management | 68,692 | $304.3K | 0.00% | +4,175+6.5% | Added |
| Creative Planning | 62,555 | $277.1K | 0.00% | −27,382−30.4% | Reduced |
| Catalyst Funds Management Pty Ltd | 62,500 | $276.9K | 0.02% | +62,500 | New |
| Los Angeles Capital Management LLC | 62,160 | $275.4K | 0.00% | +62,160 | New |
| Quantinno Capital Management LP | 56,823 | $251.7K | 0.00% | +5,611+11.0% | Added |
| Citigroup Inc | 56,130 | $248.7K | 0.00% | +43,676+350.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 56,017 | $248.2K | 0.00% | +872+1.6% | Added |
| Balyasny Asset Management LLC | 54,381 | $240.9K | 0.00% | +54,381 | New |
| Wealth Enhancement Advisory Services, LLC | 61,873 | $221.9K | 0.00% | −10,827−14.9% | Reduced |
| Prelude Capital Management, LLC | 45,259 | $200.5K | 0.01% | +32,059+242.9% | Added |
| Vanguard Global Advisers, LLC | 45,212 | $200.3K | 0.00% | 00.0% | Unchanged |
| Canada Pension Plan Investment Board | 41,300 | $183.0K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 39,936 | $176.9K | 0.00% | +10,467+35.5% | Added |
| Campbell & CO Investment Adviser LLC | 39,333 | $174.2K | 0.01% | +39,333 | New |
| ExodusPoint Capital Management, LP | 36,140 | $160.1K | 0.00% | +36,140 | New |
| R Squared Ltd | 35,412 | $156.9K | 0.08% | +35,412 | New |
| New York State Common Retirement Fund | 34,922 | $154.7K | 0.00% | 00.0% | Unchanged |
| State Board of Administration of Florida Retirement System | 34,670 | $153.6K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 33,965 | $150.5K | 0.00% | +1,766+5.5% | Added |
| STRS Ohio | 32,000 | $141.8K | 0.00% | +5,800+22.1% | Added |
| Cerity Partners LLC | 29,053 | $128.7K | 0.00% | −29,070−50.0% | Reduced |
| Axq Capital, LP | 28,299 | $125.4K | 0.01% | +8,591+43.6% | Added |
| Colony Group, LLC | 28,205 | $124.9K | 0.00% | −5,472−16.2% | Reduced |
| Mercer Global Advisors Inc | 25,718 | $113.9K | 0.00% | −3,397−11.7% | Reduced |
| Intech Investment Management LLC | 25,633 | $113.6K | 0.00% | +40.0% | Added |
| SRS Capital Advisors, Inc. | 23,786 | $105.4K | 0.00% | +23,565+10,662.9% | Added |
| Prudential Financial Inc | 23,260 | $103.0K | 0.00% | −94,337−80.2% | Reduced |
| EntryPoint Capital, LLC | 22,871 | $101.3K | 0.02% | +22,871 | New |
| Laurion Capital Management LP | 22,263 | $98.6K | 0.01% | +22,263 | New |
| Quadrature Capital Ltd | 21,420 | $94.9K | 0.00% | +21,420 | New |
| Bailard, Inc. | 19,900 | $88.2K | 0.00% | 00.0% | Unchanged |
| State of Tennessee, Treasury Department | 19,809 | $87.8K | 0.00% | −3,091−13.5% | Reduced |
| Barclays PLC | 19,606 | $86.9K | 0.00% | −4,537−18.8% | Reduced |
| HSBC Holdings PLC | 19,734 | $85.7K | 0.00% | +19,734 | New |
| ProShare Advisors LLC | 15,925 | $70.5K | 0.00% | −2,291−12.6% | Reduced |
| Tower Research Capital LLC (TRC) | 15,594 | $69.1K | 0.00% | +5,354+52.3% | Added |
| Algert Global LLC | 14,895 | $66.0K | 0.00% | −27,665−65.0% | Reduced |
| NorthCrest Asset Manangement, LLC | 13,923 | $63.9K | 0.00% | −1,293−8.5% | Reduced |
| Ameriprise Financial Inc | 14,126 | $62.6K | 0.00% | −173,144−92.5% | Reduced |
| Aigen Investment Management, LP | 14,029 | $62.1K | 0.02% | +14,029 | New |