Cytek BiosciencesCTKB
13F holders, Q1 2025 (March 31)160holders +8
28new positions
21sold out
5famous investors
$4.01avg. 13F price*
At the end of Q1 2025, 160 institutions reported holding Cytek Biosciences Inc. (CTKB) in their 13F filings, up 8 from Q4 2024. 28 opened new positions and 21 sold out. The largest holders were BlackRock, Inc. ($72.5M), Vanguard Group Inc. ($38.6M) and Brown Capital Management LLC ($29.9M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Cytek Biosciences Inc.
- CUSIP
- 23285D109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 28 | $11.0M |
| Exits | 21 | $14.3M |
All 13F filers, Q4 2024 → Q1 2025: 8,306,115 shares bought and 8,134,325 shares sold, net +171,790 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 160 holders
| BlackRock, Inc. | 0.00% | Reduce -2.2% | 18,069,282 | $72.5M |
| Vanguard Group Inc. | 0.00% | Reduce -17.9% | 9,622,008 | $38.6M |
| Brown Capital Management LLC | 0.90% | Reduce -9.5% | 7,463,967 | $29.9M |
| HHLR Advisors, LTD. | 0.75% | No change | 6,657,030 | $26.7M |
| State Street Corp. | 0.00% | Reduce -2.8% | 4,382,174 | $17.6M |
| Dimensional Fund Advisors LP | 0.00% | Add +55.9% | 2,853,809 | $11.4M |
| Geode Capital Management, LLC | 0.00% | Add +1.8% | 2,686,677 | $10.8M |
| New York State Common Retirement Fund | 0.01% | No change | 2,088,390 | $8.4M |
| Topline Capital Management, LLC | 1.35% | Add +521.6% | 1,470,775 | $5.9M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -13.7% | 1,158,001 | $4.6M |
| Northern Trust Corp. | 0.00% | Reduce -3.1% | 1,151,567 | $4.6M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +3.9% | 1,104,889 | $4.4M |
| CenterBook Partners LP | 0.22% | New | 845,405 | $3.4M |
| Morgan Stanley | 0.00% | Reduce -31.6% | 745,477 | $3.0M |
| FMR LLC | 0.00% | Add +5.0% | 717,160 | $2.9M |
| Jacobs Levy Equity Management, Inc. | 0.01% | New | 708,482 | $2.8M |
| Bank of New York Mellon Corp | 0.00% | Reduce -5.2% | 692,402 | $2.8M |
| Renaissance Technologies | 0.00% | Add +48.6% | 687,600 | $2.8M |
| JPMorgan Chase & Co. | 0.00% | Reduce -29.2% | 671,313 | $2.7M |
| AQR Capital Management | 0.00% | Add +394.4% | 653,277 | $2.6M |
| UBS Group AG | 0.00% | Reduce -8.1% | 611,528 | $2.5M |
| Citadel Advisors | 0.00% | Add +199.6% | 602,517 | $2.4M |
| Royce & Associates LP | 0.02% | Add +20.2% | 565,819 | $2.3M |
| Trexquant Investment LP | 0.03% | Add +126.3% | 549,004 | $2.2M |
| Principal Financial Group Inc. | 0.00% | Add +2.7% | 520,743 | $2.1M |
| Millennium Management | 0.00% | Reduce -38.4% | 495,437 | $2.0M |
| Algert Global LLC | 0.04% | Add +17.2% | 411,425 | $1.6M |
| Panagora Asset Management Inc. | 0.01% | Add +222.0% | 408,926 | $1.6M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Reduce -40.2% | 359,577 | $1.4M |
| Jane Street Group, LLC | 0.00% | Add +412.2% | 344,169 | $1.4M |
| Invesco Ltd. | 0.00% | Add +3.0% | 336,953 | $1.4M |
| Bank of America Corp. | 0.00% | Reduce -3.7% | 332,121 | $1.3M |
| Acuitas Investments, LLC | 1.13% | New | 331,219 | $1.3M |
| Public Sector Pension Investment Board | 0.01% | Add +27.3% | 330,914 | $1.3M |
| State of Wisconsin Investment Board | 0.00% | Add +19.6% | 311,325 | $1.2M |
| Nuveen, LLC | 0.00% | — | 304,985 | $1.2M |
| Legal & General Group Plc | 0.00% | Reduce -5.2% | 296,829 | $1.2M |
| Rhumbline Advisers | 0.00% | Add +0.6% | 296,284 | $1.2M |
| Globeflex Capital L P | 0.11% | Add +244.1% | 290,511 | $1.2M |
| Ameriprise Financial Inc. | 0.00% | Add +11.2% | 277,348 | $1.1M |
| American Century Companies Inc. | 0.00% | Add +13.4% | 232,175 | $931K |
| Susquehanna International Group, LLP | 0.00% | Add +278.4% | 215,288 | $863K |
| Swiss National Bank | 0.00% | Reduce -3.1% | 212,100 | $851K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -2.8% | 191,624 | $768K |
| XTX Topco Ltd | 0.03% | Add +714.5% | 170,279 | $683K |
| HRT Financial LP | 0.00% | New | 165,305 | $662K |
| Citigroup Inc. | 0.00% | Reduce -2.5% | 156,144 | $626K |
| Barclays PLC | 0.00% | Reduce -29.0% | 152,863 | $613K |
| Alliancebernstein L.P. | 0.00% | No change | 151,848 | $609K |
| PDT Partners, LLC | 0.04% | New | 134,065 | $538K |
| Prudential Financial Inc. | 0.00% | Reduce -38.6% | 106,382 | $427K |
| California State Teachers Retirement System | 0.00% | No change | 105,185 | $422K |
| Caxton Associates LLP | 0.01% | — | 101,894 | $409K |
| Deutsche Bank AG | 0.00% | Reduce -8.9% | 93,954 | $377K |
| BNP Paribas Financial Markets | 0.00% | Reduce -55.0% | 93,831 | $376K |
| Teacher Retirement System of Texas | 0.00% | Reduce -14.5% | 91,172 | $366K |
| Graham Capital Management, L.P. | 0.02% | Add +200.1% | 82,286 | $330K |
| Voya Investment Management LLC | 0.00% | Add +101.9% | 80,266 | $322K |
| Brevan Howard Capital Management LP | 0.01% | New | 79,954 | $321K |
| Gsa Capital Partners LLP | 0.03% | New | 79,062 | $317K |
| Thrivent Financial for Lutherans | 0.00% | Reduce -5.0% | 76,638 | $307K |
| Franklin Resources Inc. | 0.00% | Reduce -0.1% | 76,144 | $305K |
| Allianz Asset Management GmbH | 0.00% | Add +46.0% | 74,000 | $297K |
| Wells Fargo & Company | 0.00% | Add +0.3% | 71,488 | $287K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +2.2% | 70,614 | $283K |
| Intech Investment Management LLC | 0.00% | Add +36.5% | 67,865 | $272K |
| State of Tennessee, Department of Treasury | 0.00% | Reduce -3.8% | 67,855 | $272K |
| MetLife Investment Management, LLC | 0.00% | Reduce -9.0% | 67,731 | $272K |
| Russell Investments Group, Ltd. | 0.00% | Add +142.4% | 67,384 | $270K |
| Janus Henderson Group PLC | 0.00% | No change | 64,873 | $260K |
| Corebridge Financial, Inc. | 0.00% | Reduce -3.6% | 61,718 | $247K |
| Ieq Capital, LLC | 0.00% | New | 57,682 | $231K |
| State of Alaska, Department of Revenue | 0.00% | Reduce -2.5% | 57,812 | $231K |
| Cubist Systematic Strategies, LLC | 0.00% | Reduce -50.8% | 57,413 | $230K |
| Summit Global Investments | 0.02% | Add +51.6% | 54,873 | $220K |
| T. Rowe Price Associates Inc. | 0.00% | Add +13.0% | 53,337 | $214K |
| Louisiana State Employees Retirement System | 0.00% | Reduce -2.6% | 49,100 | $197K |
| New York State Teachers Retirement System | 0.00% | Add +6.8% | 48,463 | $194K |
| Arrowstreet Capital, Limited Partnership | 0.00% | New | 48,154 | $193K |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -2.5% | 44,062 | $177K |
| Squarepoint Ops LLC | 0.00% | Reduce -36.7% | 43,004 | $172K |
| Acadian Asset Management LLC | 0.00% | New | 40,667 | $162K |
| JT Stratford LLC | 0.03% | New | 36,670 | $147K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 34,670 | $139K |
| Verition Fund Management LLC | 0.00% | Add +145.2% | 33,452 | $134K |
| Arizona State Retirement System | 0.00% | Reduce -3.3% | 31,372 | $126K |
| Maryland State Retirement & Pension System | 0.00% | Reduce -12.9% | 31,322 | $126K |
| Yousif Capital Management, LLC | 0.00% | Reduce -2.4% | 31,202 | $125K |
| NorthCrest Asset Manangement, LLC | 0.00% | Reduce -4.4% | 30,777 | $123K |
| Comerica Bank | 0.00% | Reduce -1.6% | 29,941 | $120K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 29,469 | $118K |
| Amalgamated Bank | 0.00% | Reduce -8.3% | 29,216 | $117K |
| ProShare Advisors LLC | 0.00% | Reduce -23.4% | 27,767 | $111K |
| Oxford Asset Management LLP | 0.05% | New | 26,640 | $107K |
| Cibc World Markets Corp. | 0.00% | Add +132.7% | 26,429 | $106K |
| STRS Ohio | 0.00% | No change | 26,200 | $105K |
| SG Americas Securities, LLC | 0.00% | New | 26,274 | $105K |
| Commonwealth of Pennsylvania Public School Empls Retrmt SYS | 0.00% | Add +12.1% | 24,969 | $100K |
| Diversified Trust Co. | 0.00% | New | 24,532 | $98K |
| Teachers Retirement System of the State of Kentucky | 0.00% | Reduce -84.5% | 24,338 | $97K |
| Oregon Public Employees Retirement Fund | 0.00% | Reduce -2.4% | 23,950 | $96K |
| Sherbrooke Park Advisers LLC | 0.04% | Reduce -46.6% | 22,314 | $89K |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | No change | 21,873 | $88K |
| Victory Capital Management Inc. | 0.00% | Reduce -2.0% | 21,614 | $87K |
| Quantinno Capital Management LP | 0.00% | Add +49.0% | 21,190 | $85K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0.00% | No change | 20,701 | $83K |
| KLP Kapitalforvaltning As | 0.00% | No change | 20,200 | $81K |
| State of Wyoming | 0.01% | Reduce -49.2% | 20,192 | $81K |
| Engineers Gate Manager LP | 0.00% | New | 19,607 | $79K |
| Qube Research & Technologies Ltd | 0.00% | New | 19,573 | $78K |
| Royal Bank of Canada | 0.00% | Reduce -17.3% | 19,457 | $78K |
| SlateStone Wealth, LLC | 0.01% | Add +18.9% | 19,129 | $77K |
| Prelude Capital Management, LLC | 0.01% | Reduce -33.5% | 19,200 | $77K |
| Lazard Asset Management LLC | 0.00% | Add +0.0% | 18,972 | $75K |
| Cwm, LLC | 0.00% | Add +1637.7% | 18,020 | $72K |
| Point72 Asset Management | 0.00% | Reduce -95.5% | 17,496 | $70K |
| Corton Capital Inc. | 0.21% | New | 16,129 | $65K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.02% | Add +38.8% | 15,771 | $63K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 15,716 | $63K |
| Bank of Montreal | 0.00% | Add +41.6% | 15,693 | $63K |
| Mutual of America Capital Management LLC | 0.00% | Reduce -3.9% | 15,194 | $61K |
| Neuberger Berman Group LLC | 0.00% | New | 13,972 | $56K |
| Quadrature Capital Ltd | 0.00% | New | 13,896 | $56K |
| HSBC Holdings PLC | 0.00% | Reduce -2.5% | 13,763 | $55K |
| Dynamic Technology Lab Private Ltd | 0.01% | Reduce -45.6% | 13,287 | $53K |
| Public Employees Retirement System of Ohio | 0.00% | New | 12,573 | $50K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 12,042 | $48K |
| CIBC Asset Management Inc | 0.00% | Reduce -2.7% | 11,100 | $45K |
| Teza Capital Management LLC | 0.02% | Reduce -5.6% | 10,893 | $44K |
| US Bancorp \de | 0.00% | Add +9698.2% | 10,680 | $43K |
| Creative Planning | 0.00% | New | 10,025 | $40K |
| Brooklyn Investment Group | 0.01% | Add +992200.0% | 9,923 | $40K |
| Point72 (DIFC) Ltd | 0.00% | New | 6,570 | $26K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +46.0% | 4,510 | $18K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -56.9% | 3,816 | $15K |
| Farther Finance Advisors, LLC | 0.00% | Add +288.3% | 3,242 | $13K |
| Federated Hermes, Inc. | 0.00% | Reduce -62.4% | 2,878 | $12K |
| Sterling Capital Management LLC | 0.00% | Reduce -47.1% | 2,055 | $8K |
| Quadrant Capital Group LLC | 0.00% | Add +1510.1% | 1,594 | $6K |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -29.1% | 1,560 | $6K |
| True Wealth Design, LLC | 0.00% | New | 1,163 | $5K |
| Versant Capital Management, Inc | 0.00% | Reduce -8.7% | 939 | $4K |
| Fifth Third Bancorp | 0.00% | Reduce -60.5% | 837 | $3K |
| GAMMA Investing LLC | 0.00% | Reduce -85.4% | 718 | $3K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +528.2% | 534 | $2K |
| Smartleaf Asset Management LLC | 0.00% | Reduce -60.5% | 361 | $1K |
| Caitong International Asset Management Co., Ltd | 0.00% | New | 319 | $1K |
| Aquatic Capital Management LLC | 0.00% | Reduce -93.0% | 266 | $1K |
| Rothschild Investment LLC | 0.00% | Add +55.2% | 225 | $902 |
| CIBC Private Wealth Group LLC | 0.00% | No change | 154 | $519 |
| Stephens Consulting, LLC | 0.00% | New | 90 | $361 |
| Farmers & Merchants Investments Inc. | 0.00% | No change | 60 | $241 |
| UMB Bank, n.a. | 0.00% | Reduce -86.6% | 50 | $201 |
| Signaturefd, LLC | 0.00% | Reduce -61.1% | 44 | $176 |
| WealthTrak Capital Management LLC | 0.00% | New | 35 | $141 |
| Larson Financial Group LLC | 0.00% | No change | 24 | $96 |
| Osaic Holdings, Inc. | 0.00% | Reduce -57.5% | 20 | $80 |
| SBI Securities Co., Ltd. | 0.00% | Add +100.0% | 20 | $80 |
| Simplex Trading, LLC | 0.00% | New | 131 | $0 |
| Covestor Ltd | 0.00% | No change | 10 | $0 |
"% of holder's portfolio" is CTKB's weight in each manager's 13F, not the share of Cytek Biosciences Inc. the manager owns.