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, Q3 2025
Institutional positions in Cytek Biosciences, Inc. as of Sep 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
- 153
- −4 vs. Q2 2025
- Shares held
- 80.0M
- +622.2K (+0.8%) vs. Q2 2025
- Total value
- $277.4M
- +$7.47M (+2.8%) vs. Q2 2025
- New holders
- 20
- 62 more added
- Sold out
- 24
- 53 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Cytek Biosciences, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Gsa Capital Partners LLP | 109,098 | $379.0K | 0.03% | +73,932+210.2% | Added |
| Prudential Financial Inc | 112,667 | $391.0K | 0.00% | 00.0% | Unchanged |
| Voya Investment Management LLC | 116,014 | $402.6K | 0.00% | +77,702+202.8% | Added |
| D. E. Shaw & Co., Inc. | 121,022 | $419.9K | 0.00% | +121,022 | New |
| Marshall Wace, LLP | 134,286 | $466.0K | 0.00% | −127,066−48.6% | Reduced |
| Alliancebernstein L.P. | 149,648 | $519.3K | 0.00% | −2,200−1.4% | Reduced |
| Ieq Capital, LLC | 152,823 | $530.3K | 0.00% | +14,062+10.1% | Added |
| Cubist Systematic Strategies, LLC | 156,359 | $542.6K | 0.01% | +59,515+61.5% | Added |
| Squarepoint Ops LLC | 158,641 | $550.5K | 0.00% | +13,590+9.4% | Added |
| Russell Investments Group, Ltd. | 159,513 | $553.5K | 0.00% | +131,718+473.9% | Added |
| Barclays PLC | 165,572 | $574.5K | 0.00% | −222,336−57.3% | Reduced |
| Bank of America Corp | 170,160 | $590.5K | 0.00% | +78,548+85.7% | Added |
| Two Sigma Investments, LP | 175,759 | $609.9K | 0.00% | +175,759 | New |
| FMR LLC | 180,786 | $627.3K | 0.00% | −24,955−12.1% | Reduced |
| Point72 Asset Management, L.P. | 187,618 | $651.0K | 0.00% | +187,618 | New |
| Legal & General Group Plc | 192,375 | $667.5K | 0.00% | −117,916−38.0% | Reduced |
| Susquehanna International Group, LLP | 192,853 | $669.2K | 0.00% | −18,747−8.9% | Reduced |
| Tudor Investment Corp Et Al | 249,812 | $866.8K | 0.01% | +249,812 | New |
| Nuveen, LLC | 253,808 | $880.7K | 0.00% | 00.0% | Unchanged |
| American Century Companies Inc | 276,986 | $961.1K | 0.00% | +25,713+10.2% | Added |
| Rhumbline Advisers | 280,367 | $972.9K | 0.00% | −2,284−0.8% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 297,875 | $1.03M | 0.00% | −21,191−6.6% | Reduced |
| Ameriprise Financial Inc | 328,623 | $1.14M | 0.00% | −83,688−20.3% | Reduced |
| New York State Common Retirement Fund | 331,190 | $1.15M | 0.00% | −1,757,200−84.1% | Reduced |
| State of Wisconsin Investment Board | 338,218 | $1.17M | 0.00% | +21,542+6.8% | Added |
| Jane Street Group, LLC | 357,025 | $1.24M | 0.00% | +72,187+25.3% | Added |
| JPMorgan Chase & Co | 358,723 | $1.24M | 0.00% | −71,385−16.6% | Reduced |
| Arrowstreet Capital, Limited Partnership | 361,290 | $1.25M | 0.00% | +217,038+150.5% | Added |
| Invesco Ltd. | 389,126 | $1.35M | 0.00% | +45,467+13.2% | Added |
| Public Sector Pension Investment Board | 426,806 | $1.48M | 0.01% | +77,070+22.0% | Added |
| UBS Group AG | 468,689 | $1.63M | 0.00% | −163,363−25.8% | Reduced |
| Acadian Asset Management LLC | 565,573 | $1.96M | 0.00% | +251,929+80.3% | Added |
| Principal Financial Group Inc | 623,306 | $2.16M | 0.00% | +50,919+8.9% | Added |
| Bank of New York Mellon Corp | 673,569 | $2.34M | 0.00% | −26,344−3.8% | Reduced |
| Renaissance Technologies LLC | 795,544 | $2.76M | 0.00% | −267,595−25.2% | Reduced |
| Jacobs Levy Equity Management, Inc | 824,436 | $2.86M | 0.01% | −63,903−7.2% | Reduced |
| Northern Trust Corp | 1,013,583 | $3.52M | 0.00% | −82,411−7.5% | Reduced |
| AQR Capital Management LLC | 1,019,890 | $3.54M | 0.00% | −218,503−17.6% | Reduced |
| Charles Schwab Investment Management Inc | 1,105,021 | $3.83M | 0.00% | +195,431+21.5% | Added |
| Morgan Stanley | 1,463,141 | $5.08M | 0.00% | +313,020+27.2% | Added |
| Goldman Sachs Group Inc | 1,737,309 | $6.03M | 0.00% | +720,752+70.9% | Added |
| Royce & Associates LP | 1,763,262 | $6.12M | 0.06% | +373,456+26.9% | Added |
| Wellington Management Group LLP | 2,541,046 | $8.82M | 0.00% | +2,541,046 | New |
| Geode Capital Management, LLC | 2,783,449 | $9.66M | 0.00% | +53,856+2.0% | Added |
| Dimensional Fund Advisors LP | 3,217,788 | $11.2M | 0.00% | −237,018−6.9% | Reduced |
| Millennium Management LLC | 3,418,382 | $11.9M | 0.01% | +2,493,610+269.6% | Added |
| State Street Corp | 4,084,368 | $14.2M | 0.00% | −89,395−2.1% | Reduced |
| Brown Capital Management LLC | 4,958,016 | $17.2M | 0.71% | −2,151,979−30.3% | Reduced |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $23.1M | 0.56% | 00.0% | Unchanged |
| Vanguard Group Inc | 6,933,504 | $24.1M | 0.00% | −831,634−10.7% | Reduced |
| Topline Capital Management, LLC | 6,944,280 | $24.1M | 4.14% | +1,713,020+32.7% | Added |
| BlackRock, Inc. | 16,547,693 | $57.4M | 0.00% | −487,842−2.9% | Reduced |
| Colony Group, LLC | 70,576 | – | – | +70,576 | New |
| Algert Global LLC | 0 | $0 | 0.00% | −372,238−100.0% | Sold out |
| Globeflex Capital L P | 0 | $0 | 0.00% | −290,511−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −284,350−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −212,100−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −92,638−100.0% | Sold out |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −64,873−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −56,620−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −47,746−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −45,131−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −33,276−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −33,072−100.0% | Sold out |
| Arizona State Retirement System | 0 | $0 | 0.00% | −31,721−100.0% | Sold out |
| Diversified Trust Co | 0 | $0 | 0.00% | −24,532−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −20,701−100.0% | Sold out |
| KLP Kapitalforvaltning AS | 0 | $0 | 0.00% | −20,200−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −18,225−100.0% | Sold out |
| SlateStone Wealth, LLC | 0 | $0 | 0.00% | −17,967−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −15,332−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −15,006−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −14,730−100.0% | Sold out |
| Merit Financial Group, LLC | 0 | $0 | 0.00% | −11,103−100.0% | Sold out |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0 | $0 | 0.00% | −1,856−100.0% | Sold out |
| CIBC Private Wealth Group, LLC | 0 | $0 | 0.00% | −154−100.0% | Sold out |
| Larson Financial Group LLC | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| CIBC World Markets Corp | – | – | – | – | Not filed |