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 |
|---|---|---|---|---|---|
| Price T Rowe Associates Inc | 101,198 | $449.0K | 0.00% | +21,056+26.3% | Added |
| Wells Fargo & Company | 102,704 | $455.0K | 0.00% | +57,427+126.8% | Added |
| Deutsche Bank AG | 111,932 | $495.9K | 0.00% | +7,495+7.2% | Added |
| JPMorgan Chase & Co | 141,864 | $615.7K | 0.00% | −157,226−52.6% | Reduced |
| Alliancebernstein L.P. | 141,048 | $616.4K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 142,723 | $632.3K | 0.01% | +142,723 | New |
| Jump Financial, LLC | 148,083 | $656.0K | 0.01% | +119,191+412.5% | Added |
| CenterBook Partners LP | 149,180 | $660.9K | 0.03% | −580,694−79.6% | Reduced |
| Rhumbline Advisers | 153,225 | $678.8K | 0.00% | −101,364−39.8% | Reduced |
| Franklin Resources Inc | 156,061 | $691.4K | 0.00% | +42,088+36.9% | Added |
| Numerai GP LLC | 159,465 | $706.4K | 0.06% | +47,005+41.8% | Added |
| Gsa Capital Partners LLP | 167,593 | $742.0K | 0.05% | +58,477+53.6% | Added |
| Two Sigma Investments, LP | 168,218 | $745.2K | 0.00% | +142,618+557.1% | Added |
| Invesco Ltd. | 185,671 | $822.5K | 0.00% | −202,562−52.2% | Reduced |
| Y-Intercept (Hong Kong) Ltd | 193,128 | $855.6K | 0.02% | +193,128 | New |
| BNP Paribas Arbitrage, SA | 215,010 | $952.5K | 0.00% | +136,966+175.5% | Added |
| Jacobs Levy Equity Management, Inc | 241,581 | $1.07M | 0.00% | −15,711−6.1% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 266,938 | $1.18M | 0.00% | +25,434+10.5% | Added |
| Nuveen, LLC | 289,415 | $1.28M | 0.00% | +43,894+17.9% | Added |
| American Century Companies Inc | 292,103 | $1.29M | 0.00% | +10,422+3.7% | Added |
| Bank of New York Mellon Corp | 371,427 | $1.65M | 0.00% | −237,220−39.0% | Reduced |
| Jain Global LLC | 411,465 | $1.82M | 0.02% | +411,465 | New |
| Point72 Asset Management, L.P. | 422,361 | $1.87M | 0.00% | +422,361 | New |
| Marshall Wace, LLP | 441,704 | $1.96M | 0.00% | +441,704 | New |
| FMR LLC | 504,385 | $2.23M | 0.00% | +220,999+78.0% | Added |
| Renaissance Technologies LLC | 661,300 | $2.93M | 0.00% | −15,400−2.3% | Reduced |
| D. E. Shaw & Co., Inc. | 669,182 | $2.96M | 0.00% | +409,057+157.3% | Added |
| Susquehanna International Group, LLP | 681,705 | $3.02M | 0.00% | +625,695+1,117.1% | Added |
| Qube Research & Technologies Ltd | 689,821 | $3.06M | 0.00% | +689,821 | New |
| Morgan Stanley | 701,792 | $3.11M | 0.00% | −1,017,083−59.2% | Reduced |
| Citadel Advisors LLC | 721,470 | $3.20M | 0.00% | +250,078+53.1% | Added |
| Vanguard Fiduciary Trust Co | 740,662 | $3.28M | 0.00% | +23,651+3.3% | Added |
| AQR Capital Management LLC | 813,971 | $3.61M | 0.00% | −98,371−10.8% | Reduced |
| Tudor Investment Corp Et Al | 837,913 | $3.71M | 0.02% | +517,198+161.3% | Added |
| Jane Street Group, LLC | 906,162 | $4.01M | 0.00% | +906,162 | New |
| Arrowstreet Capital, Limited Partnership | 973,833 | $4.31M | 0.00% | +653,924+204.4% | Added |
| HRT Financial LP | 997,769 | $4.42M | 0.01% | +583,717+141.0% | Added |
| Northern Trust Corp | 1,003,294 | $4.44M | 0.00% | −1,899−0.2% | Reduced |
| Charles Schwab Investment Management Inc | 1,073,253 | $4.75M | 0.00% | −31,348−2.8% | Reduced |
| Vanguard Portfolio Management LLC | 1,141,592 | $5.06M | 0.00% | −1,170,266−50.6% | Reduced |
| Bank of America Corp | 1,315,332 | $5.83M | 0.00% | +306,278+30.4% | Added |
| Acadian Asset Management LLC | 1,376,048 | $6.09M | 0.01% | +977,060+244.9% | Added |
| Russell Investments Group, Ltd. | 1,511,315 | $6.70M | 0.01% | +151,415+11.1% | Added |
| Royce & Associates LP | 2,081,579 | $9.22M | 0.07% | +439,211+26.7% | Added |
| Goldman Sachs Group Inc | 2,167,515 | $9.60M | 0.00% | −177,220−7.6% | Reduced |
| State Street Corp | 2,566,121 | $11.4M | 0.00% | −1,557,627−37.8% | Reduced |
| Dimensional Fund Advisors LP | 2,616,257 | $11.6M | 0.00% | −47,072−1.8% | Reduced |
| Geode Capital Management, LLC | 3,059,573 | $13.6M | 0.00% | +225,618+8.0% | Added |
| Vanguard Capital Management LLC | 4,939,597 | $21.9M | 0.00% | +176,693+3.7% | Added |
| Topline Capital Management, LLC | 6,283,450 | $27.8M | 7.22% | −781,031−11.1% | Reduced |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $29.5M | 3.54% | 00.0% | Unchanged |
| Boston Partners | 7,660,943 | $33.9M | 0.03% | +1,858,170+32.0% | Added |
| Millennium Management LLC | 9,338,010 | $41.4M | 0.03% | +3,046,212+48.4% | Added |
| BlackRock, Inc. | 9,578,643 | $42.4M | 0.00% | −7,428,626−43.7% | Reduced |
| Brown Capital Management LLC | 0 | $0 | 0.00% | −1,480,506−100.0% | Sold out |
| Simcoe Capital LLC | 0 | $0 | 0.00% | −882,113−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −534,759−100.0% | Sold out |
| Public Sector Pension Investment Board | 0 | $0 | 0.00% | −394,718−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −104,046−100.0% | Sold out |
| Thrivent Financial for Lutherans | 0 | $0 | 0.00% | −73,399−100.0% | Sold out |
| Illinois Municipal Retirement Fund | 0 | $0 | 0.00% | −60,877−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −51,593−100.0% | Sold out |
| Louisiana State Employees Retirement System | 0 | $0 | 0.00% | −48,800−100.0% | Sold out |
| New York State Teachers Retirement System | 0 | $0 | 0.00% | −44,829−100.0% | Sold out |
| nVerses Capital, LLC | 0 | $0 | 0.00% | −38,319−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −31,901−100.0% | Sold out |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 0 | $0 | 0.00% | −27,193−100.0% | Sold out |
| Yousif Capital Management, LLC | 0 | $0 | 0.00% | −27,078−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −27,026−100.0% | Sold out |
| Oregon Public Employees Retirement Fund | 0 | $0 | 0.00% | −25,175−100.0% | Sold out |
| Teachers Retirement System of the State of Kentucky | 0 | $0 | 0.00% | −24,338−100.0% | Sold out |
| JustInvest LLC | 0 | $0 | 0.00% | −19,066−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −17,807−100.0% | Sold out |
| Merit Financial Group, LLC | 0 | $0 | 0.00% | −16,398−100.0% | Sold out |
| Maryland State Retirement & Pension System | 0 | $0 | 0.00% | −15,656−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −14,778−100.0% | Sold out |
| Mutual of America Capital Management LLC | 0 | $0 | 0.00% | −12,584−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −12,253−100.0% | Sold out |
| Neuberger Berman Group LLC | 0 | $0 | 0.00% | −11,229−100.0% | Sold out |
| M&T Bank Corp | 0 | $0 | 0.00% | −10,308−100.0% | Sold out |
| Pinnacle Wealth Planning Services, Inc. | 0 | $0 | 0.00% | −4,313−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −3,226−100.0% | Sold out |
| Optiver Holding B.V. | 0 | $0 | 0.00% | −3,175−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −1,704−100.0% | Sold out |
| Stone House Investment Management, LLC | 0 | $0 | 0.00% | −318−100.0% | Sold out |
| Wealth Preservation Advisors, LLC | 0 | $0 | 0.00% | −109−100.0% | Sold out |
| Keating Financial Advisory Services, Inc. | 0 | $0 | 0.00% | −86−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −78−100.0% | Sold out |
| Parkside Financial Bank & Trust | 0 | $0 | 0.00% | −66−100.0% | Sold out |
| Ankerstar Wealth, LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| SJS Investment Consulting Inc. | 0 | $0 | 0.00% | −6−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |