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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 16,547,693 | $57.4M | 0.00% | −487,842−2.9% | Reduced |
| Topline Capital Management, LLC | 6,944,280 | $24.1M | 4.14% | +1,713,020+32.7% | Added |
| Vanguard Group Inc | 6,933,504 | $24.1M | 0.00% | −831,634−10.7% | Reduced |
| HHLR Advisors, Ltd.SuperinvestorHHLR Advisors (Hillhouse) | 6,657,030 | $23.1M | 0.56% | 00.0% | Unchanged |
| Brown Capital Management LLC | 4,958,016 | $17.2M | 0.71% | −2,151,979−30.3% | Reduced |
| State Street Corp | 4,084,368 | $14.2M | 0.00% | −89,395−2.1% | Reduced |
| Millennium Management LLC | 3,418,382 | $11.9M | 0.01% | +2,493,610+269.6% | Added |
| Dimensional Fund Advisors LP | 3,217,788 | $11.2M | 0.00% | −237,018−6.9% | Reduced |
| Geode Capital Management, LLC | 2,783,449 | $9.66M | 0.00% | +53,856+2.0% | Added |
| Wellington Management Group LLP | 2,541,046 | $8.82M | 0.00% | +2,541,046 | New |
| Royce & Associates LP | 1,763,262 | $6.12M | 0.06% | +373,456+26.9% | Added |
| Goldman Sachs Group Inc | 1,737,309 | $6.03M | 0.00% | +720,752+70.9% | Added |
| Morgan Stanley | 1,463,141 | $5.08M | 0.00% | +313,020+27.2% | Added |
| Charles Schwab Investment Management Inc | 1,105,021 | $3.83M | 0.00% | +195,431+21.5% | Added |
| AQR Capital Management LLC | 1,019,890 | $3.54M | 0.00% | −218,503−17.6% | Reduced |
| Northern Trust Corp | 1,013,583 | $3.52M | 0.00% | −82,411−7.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 824,436 | $2.86M | 0.01% | −63,903−7.2% | Reduced |
| Renaissance Technologies LLC | 795,544 | $2.76M | 0.00% | −267,595−25.2% | Reduced |
| Bank of New York Mellon Corp | 673,569 | $2.34M | 0.00% | −26,344−3.8% | Reduced |
| Principal Financial Group Inc | 623,306 | $2.16M | 0.00% | +50,919+8.9% | Added |
| Acadian Asset Management LLC | 565,573 | $1.96M | 0.00% | +251,929+80.3% | Added |
| UBS Group AG | 468,689 | $1.63M | 0.00% | −163,363−25.8% | Reduced |
| Public Sector Pension Investment Board | 426,806 | $1.48M | 0.01% | +77,070+22.0% | Added |
| Invesco Ltd. | 389,126 | $1.35M | 0.00% | +45,467+13.2% | Added |
| Arrowstreet Capital, Limited Partnership | 361,290 | $1.25M | 0.00% | +217,038+150.5% | Added |
| JPMorgan Chase & Co | 358,723 | $1.24M | 0.00% | −71,385−16.6% | Reduced |
| Jane Street Group, LLC | 357,025 | $1.24M | 0.00% | +72,187+25.3% | Added |
| State of Wisconsin Investment Board | 338,218 | $1.17M | 0.00% | +21,542+6.8% | Added |
| New York State Common Retirement Fund | 331,190 | $1.15M | 0.00% | −1,757,200−84.1% | Reduced |
| Ameriprise Financial Inc | 328,623 | $1.14M | 0.00% | −83,688−20.3% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 297,875 | $1.03M | 0.00% | −21,191−6.6% | Reduced |
| Rhumbline Advisers | 280,367 | $972.9K | 0.00% | −2,284−0.8% | Reduced |
| American Century Companies Inc | 276,986 | $961.1K | 0.00% | +25,713+10.2% | Added |
| Nuveen, LLC | 253,808 | $880.7K | 0.00% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 249,812 | $866.8K | 0.01% | +249,812 | New |
| Susquehanna International Group, LLP | 192,853 | $669.2K | 0.00% | −18,747−8.9% | Reduced |
| Legal & General Group Plc | 192,375 | $667.5K | 0.00% | −117,916−38.0% | Reduced |
| Point72 Asset Management, L.P. | 187,618 | $651.0K | 0.00% | +187,618 | New |
| FMR LLC | 180,786 | $627.3K | 0.00% | −24,955−12.1% | Reduced |
| Two Sigma Investments, LP | 175,759 | $609.9K | 0.00% | +175,759 | New |
| Bank of America Corp | 170,160 | $590.5K | 0.00% | +78,548+85.7% | Added |
| Barclays PLC | 165,572 | $574.5K | 0.00% | −222,336−57.3% | Reduced |
| Russell Investments Group, Ltd. | 159,513 | $553.5K | 0.00% | +131,718+473.9% | Added |
| Squarepoint Ops LLC | 158,641 | $550.5K | 0.00% | +13,590+9.4% | Added |
| Cubist Systematic Strategies, LLC | 156,359 | $542.6K | 0.01% | +59,515+61.5% | Added |
| Ieq Capital, LLC | 152,823 | $530.3K | 0.00% | +14,062+10.1% | Added |
| Alliancebernstein L.P. | 149,648 | $519.3K | 0.00% | −2,200−1.4% | Reduced |
| Marshall Wace, LLP | 134,286 | $466.0K | 0.00% | −127,066−48.6% | Reduced |
| D. E. Shaw & Co., Inc. | 121,022 | $419.9K | 0.00% | +121,022 | New |
| Voya Investment Management LLC | 116,014 | $402.6K | 0.00% | +77,702+202.8% | Added |
| Prudential Financial Inc | 112,667 | $391.0K | 0.00% | 00.0% | Unchanged |
| Gsa Capital Partners LLP | 109,098 | $379.0K | 0.03% | +73,932+210.2% | Added |
| Creative Planning | 108,631 | $376.9K | 0.00% | +52,954+95.1% | Added |
| Numerai GP LLC | 106,495 | $369.5K | 0.05% | −315,823−74.8% | Reduced |
| Caxton Associates LLP | 93,408 | $324.1K | 0.01% | −10,057−9.7% | Reduced |
| PDT Partners, LLC | 91,869 | $318.8K | 0.02% | 00.0% | Unchanged |
| Wells Fargo & Company | 90,401 | $313.7K | 0.00% | +14,950+19.8% | Added |
| Deutsche Bank AG | 89,020 | $308.9K | 0.00% | +11,972+15.5% | Added |
| Franklin Resources Inc | 86,768 | $301.1K | 0.00% | +10,180+13.3% | Added |
| Aquatic Capital Management LLC | 84,150 | $292.0K | 0.01% | +63,900+315.6% | Added |
| Citadel Advisors LLC | 82,304 | $285.6K | 0.00% | −534,781−86.7% | Reduced |
| Public Employees Retirement System of Ohio | 81,106 | $281.4K | 0.00% | +12,200+17.7% | Added |
| Thrivent Financial for Lutherans | 78,934 | $274.0K | 0.00% | +3,495+4.6% | Added |
| XTX Topco Ltd | 72,546 | $251.7K | 0.01% | −42,855−37.1% | Reduced |
| MetLife Investment Management | 69,880 | $242.5K | 0.00% | −3,418−4.7% | Reduced |
| ExodusPoint Capital Management, LP | 62,970 | $218.5K | 0.00% | −171,727−73.2% | Reduced |
| Panagora Asset Management Inc | 62,598 | $217.2K | 0.00% | −225,664−78.3% | Reduced |
| Price T Rowe Associates Inc | 62,135 | $216.0K | 0.00% | +5,314+9.4% | Added |
| Two Sigma Advisers, LP | 61,600 | $213.8K | 0.00% | +61,600 | New |
| State of Alaska, Department of Revenue | 61,509 | $213.0K | 0.00% | +556+0.9% | Added |
| SG Americas Securities, LLC | 59,604 | $207.0K | 0.00% | +46,956+371.3% | Added |
| State of Tennessee, Treasury Department | 58,883 | $204.3K | 0.00% | +34,173+138.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 55,255 | $191.7K | 0.00% | −9,135−14.2% | Reduced |
| CWM, LLC | 55,066 | $191.0K | 0.00% | +9,646+21.2% | Added |
| Cerity Partners LLC | 51,989 | $180.4K | 0.00% | +627+1.2% | Added |
| Louisiana State Employees Retirement System | 50,300 | $174.5K | 0.00% | +2,400+5.0% | Added |
| Citigroup Inc | 49,973 | $173.4K | 0.00% | −59,670−54.4% | Reduced |
| Intech Investment Management LLC | 48,498 | $168.3K | 0.00% | +1,556+3.3% | Added |
| New York State Teachers Retirement System | 48,463 | $168.0K | 0.00% | 00.0% | Unchanged |
| Brevan Howard Capital Management LP | 47,480 | $164.8K | 0.00% | −7,642−13.9% | Reduced |
| Manufacturers Life Insurance Company, The | 40,713 | $141.3K | 0.00% | −3,728−8.4% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 36,375 | $137.9K | 0.00% | +5,308+17.1% | Added |
| Oxford Asset Management LLP | 37,509 | $130.2K | 0.04% | +24,836+196.0% | Added |
| Boston Partners | 37,183 | $129.0K | 0.00% | +37,183 | New |
| Dynamic Technology Lab Private Ltd | 35,119 | $122.0K | 0.02% | −10,595−23.2% | Reduced |
| State Board of Administration of Florida Retirement System | 34,670 | $120.3K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 33,907 | $117.7K | 0.00% | +9,176+37.1% | Added |
| Amalgamated Bank | 31,934 | $111.0K | 0.00% | +2,003+6.7% | Added |
| SRS Capital Advisors, Inc. | 30,259 | $105.0K | 0.00% | +30,259 | New |
| Police & Firemen's Retirement System of New Jersey | 29,469 | $102.3K | 0.00% | 00.0% | Unchanged |
| Bailard, Inc. | 29,300 | $101.7K | 0.00% | +29,300 | New |
| Skopos Labs, Inc. | 28,452 | $101.0K | 0.01% | −2,212−7.2% | Reduced |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 27,864 | $96.7K | 0.00% | +1,524+5.8% | Added |
| Yousif Capital Management, LLC | 27,581 | $95.7K | 0.00% | −3,621−11.6% | Reduced |
| Mariner, LLC | 26,902 | $93.3K | 0.00% | +9,663+56.1% | Added |
| Comerica Bank | 26,792 | $93.0K | 0.00% | −3,621−11.9% | Reduced |
| STRS Ohio | 26,200 | $90.9K | 0.00% | 00.0% | Unchanged |
| Oregon Public Employees Retirement Fund | 24,675 | $85.6K | 0.00% | +1,200+5.1% | Added |
| Teachers Retirement System of the State of Kentucky | 24,338 | $85.0K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 23,816 | $82.6K | 0.00% | +11,838+98.8% | Added |