DaveManuel.com · Institutional Ownership · Who Owns It
CYTEK BIOSCIENCES INC (CTKB)
Institutional ownership reported to the SEC as of Q2 2026, across 21 quarters.
155
Reporting holders
$361.1M
Reported value
62.7%
Of shares outstanding
0.0%
Calls
0.0%
Puts
-9
Holder change
Institutions report 81,517,414 shares against 129,983,253 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $42.4M | 9,578,643 | 0.00% | 8q | -43.7%-$32.9M |
| MILLENNIUM MANAGEMENT LLC | $41.4M | 9,338,010 | 0.01% | 10q | +48.4%+$13.5M |
| Boston Partners | $33.9M | 7,660,943 | 0.03% | 4q | +32.0%+$8.2M |
| HHLR ADVISORS, LTD. | $29.5M | 6,657,030 | 3.54% | 20q | HELD |
| Topline Capital Management, LLC | $27.8M | 6,283,450 | 7.22% | 7q | -11.1%-$3.5M |
| VANGUARD CAPITAL MANAGEMENT LLC | $21.9M | 4,939,597 | 0.00% | 2q | +3.7%+$782.8K |
| GEODE CAPITAL MANAGEMENT, LLC | $13.6M | 3,059,573 | 0.00% | 20q | +8.0%+$999.7K |
| DIMENSIONAL FUND ADVISORS LP | $11.6M | 2,616,257 | 0.00% | 14q | -1.8%-$208.5K |
| STATE STREET CORP | $11.4M | 2,566,121 | 0.00% | 20q | -37.8%-$6.9M |
| GOLDMAN SACHS GROUP INC | $9.6M | 2,167,515 | 0.00% | 20q | -7.6%-$785.1K |
| ROYCE & ASSOCIATES LP | $9.2M | 2,081,579 | 0.07% | 10q | +26.7%+$1.9M |
| Russell Investments Group, Ltd. | $6.7M | 1,511,315 | 0.01% | 11q | +11.1%+$670.8K |
| ACADIAN ASSET MANAGEMENT LLC | $6.1M | 1,376,048 | 0.01% | 6q | +244.9%+$4.3M |
| BANK OF AMERICA CORP /DE/ | $5.8M | 1,315,332 | 0.00% | 20q | +30.4%+$1.4M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $5.1M | 1,141,592 | 0.00% | 2q | -50.6%-$5.2M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $4.8M | 1,073,253 | 0.00% | 20q | -2.8%-$138.9K |
| NORTHERN TRUST CORP | $4.4M | 1,003,294 | 0.00% | 20q | HELD |
| HRT FINANCIAL LP | $4.4M | 997,769 | 0.01% | 3q | +141.0%+$2.6M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $4.3M | 973,833 | 0.00% | 6q | +204.4%+$2.9M |
| JANE STREET GROUP, LLC | $4.0M | 906,162 | 0.00% | new | NEW |
| TUDOR INVESTMENT CORP ET AL | $3.7M | 837,913 | 0.01% | 2q | +161.3%+$2.3M |
| AQR CAPITAL MANAGEMENT LLC | $3.6M | 813,971 | 0.00% | 13q | -10.8%-$435.8K |
| VANGUARD FIDUCIARY TRUST CO | $3.3M | 740,662 | 0.00% | 2q | +3.3%+$104.8K |
| CITADEL ADVISORS LLC | $3.2M | 721,470 | 0.00% | 9q | +53.1%+$1.1M |
| MORGAN STANLEY | $3.1M | 701,792 | 0.00% | 20q | -59.2%-$4.5M |
| Qube Research & Technologies Ltd | $3.1M | 689,821 | 0.00% | new | NEW |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3.0M | 681,705 | 0.00% | 16q | +1117.1%+$2.8M |
| D. E. Shaw & Co., Inc. | $3.0M | 669,182 | 0.00% | 4q | +157.3%+$1.8M |
| RENAISSANCE TECHNOLOGIES LLC | $2.9M | 661,300 | 0.00% | 9q | -2.3%-$68.2K |
| FMR LLC | $2.2M | 504,385 | 0.00% | 20q | +78.0%+$979.0K |
| MARSHALL WACE, LLP | $2.0M | 441,704 | 0.00% | new | NEW |
| Point72 Asset Management, L.P. | $1.9M | 422,361 | 0.00% | new | NEW |
| Jain Global LLC | $1.8M | 411,465 | 0.01% | new | NEW |
| Bank of New York Mellon Corp | $1.6M | 371,427 | 0.00% | 20q | -39.0%-$1.1M |
| AMERICAN CENTURY COMPANIES INC | $1.3M | 292,103 | 0.00% | 11q | +3.7%+$46.2K |
| Nuveen, LLC | $1.3M | 289,415 | 0.00% | 6q | +17.9%+$194.5K |
| Connor, Clark & Lunn Investment Management Ltd. | $1.2M | 266,938 | 0.00% | 12q | +10.5%+$112.7K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $1.1M | 241,581 | 0.00% | 6q | -6.1%-$69.6K |
| BNP PARIBAS FINANCIAL MARKETS | $952.5K | 215,010 | 0.00% | 7q | +175.5%+$606.8K |
| Y-Intercept (Hong Kong) Ltd | $855.6K | 193,128 | 0.02% | new | NEW |
| Invesco Ltd. | $822.5K | 185,671 | 0.00% | 18q | -52.2%-$897.3K |
| TWO SIGMA INVESTMENTS, LP | $745.2K | 168,218 | 0.00% | 4q | +557.1%+$631.8K |
| GSA CAPITAL PARTNERS LLP | $742.0K | 167,593 | 0.05% | 2q | +53.6%+$258.9K |
| Numerai GP LLC | $706.4K | 159,465 | 0.06% | 5q | +41.8%+$208.2K |
| FRANKLIN RESOURCES INC | $691.4K | 156,061 | 0.00% | 8q | +36.9%+$186.4K |
| RHUMBLINE ADVISERS | $678.8K | 153,225 | 0.00% | 20q | -39.8%-$449.0K |
| CenterBook Partners LP | $660.9K | 149,180 | 0.03% | 2q | -79.6%-$2.6M |
| Jump Financial, LLC | $656.0K | 148,083 | 0.01% | 2q | +412.5%+$528.0K |
| XTX Topco Ltd | $632.3K | 142,723 | 0.01% | new | NEW |
| ALLIANCEBERNSTEIN L.P. | $616.4K | 141,048 | 0.00% | 18q | HELD |
| JPMORGAN CHASE & CO | $615.7K | 141,864 | 0.00% | 20q | -52.6%-$682.4K |
| DEUTSCHE BANK AG\ | $495.9K | 111,932 | 0.00% | 20q | +7.2%+$33.2K |
| WELLS FARGO & COMPANY/MN | $455.0K | 102,704 | 0.00% | 20q | +126.8%+$254.4K |
| PRICE T ROWE ASSOCIATES INC /MD/ | $449.0K | 101,198 | 0.00% | 17q | +26.3%+$93.4K |
| IEQ CAPITAL, LLC | $399.1K | 90,100 | 0.00% | 6q | -37.6%-$240.5K |
| UBS Group AG | $393.9K | 88,914 | 0.00% | 17q | -52.4%-$434.0K |
| PDT Partners, LLC | $384.8K | 86,869 | 0.02% | 6q | HELD |
| Squarepoint Ops LLC | $366.7K | 82,776 | 0.00% | 2q | +227.2%+$254.6K |
| Aquatic Capital Management LLC | $340.1K | 76,762 | 0.01% | new | NEW |
| VOYA INVESTMENT MANAGEMENT LLC | $328.0K | 74,034 | 0.00% | 17q | -47.6%-$298.4K |
| MetLife Investment Management, LLC | $304.3K | 68,692 | 0.00% | 20q | +6.5%+$18.5K |
| Creative Planning | $277.1K | 62,555 | 0.00% | 6q | -30.4%-$121.3K |
| Catalyst Funds Management Pty Ltd | $276.9K | 62,500 | 0.02% | new | NEW |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $275.4K | 62,160 | 0.00% | new | NEW |
| Quantinno Capital Management LP | $251.7K | 56,823 | 0.00% | 3q | +11.0%+$24.9K |
| CITIGROUP INC | $248.7K | 56,130 | 0.00% | 20q | +350.7%+$193.5K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $248.2K | 56,017 | 0.00% | 9q | +1.6%+$3.9K |
| Balyasny Asset Management L.P. | $240.9K | 54,381 | 0.00% | new | NEW |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $221.9K | 61,873 | 0.00% | 6q | -14.9%-$38.8K |
| PRELUDE CAPITAL MANAGEMENT, LLC | $200.5K | 45,259 | 0.01% | 3q | +242.9%+$142.0K |
| Vanguard Global Advisers, LLC | $200.3K | 45,212 | 0.00% | 2q | HELD |
| CANADA PENSION PLAN INVESTMENT BOARD | $183.0K | 41,300 | 0.00% | 2q | HELD |
| Police & Firemen's Retirement System of New Jersey | $176.9K | 39,936 | 0.00% | 7q | +35.5%+$46.4K |
| Campbell & CO Investment Adviser LLC | $174.2K | 39,333 | 0.01% | new | NEW |
| ExodusPoint Capital Management, LP | $160.1K | 36,140 | 0.00% | new | NEW |
| R Squared Ltd | $156.9K | 35,412 | 0.08% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $154.7K | 34,922 | 0.00% | 20q | HELD |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $153.6K | 34,670 | 0.00% | 17q | HELD |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $150.5K | 33,965 | 0.00% | 19q | +5.5%+$7.8K |
| STRS OHIO | $141.8K | 32,000 | 0.00% | 8q | +22.1%+$25.7K |
| Cerity Partners LLC | $128.7K | 29,053 | 0.00% | 5q | -50.0%-$128.8K |
| AXQ CAPITAL, LP | $125.4K | 28,299 | 0.01% | 3q | +43.6%+$38.1K |
| Focus Partners Wealth | $124.9K | 28,205 | 0.00% | 4q | -16.2%-$24.2K |
| MERCER GLOBAL ADVISORS INC /ADV | $113.9K | 25,718 | 0.00% | 4q | -11.7%-$15.0K |
| INTECH INVESTMENT MANAGEMENT LLC | $113.6K | 25,633 | 0.00% | 8q | HELD |
| Arax Advisory Partners | $105.4K | 23,786 | 0.00% | 4q | +10662.9%+$104.4K |
| PRUDENTIAL FINANCIAL INC | $103.0K | 23,260 | 0.00% | 13q | -80.2%-$417.9K |
| EntryPoint Capital, LLC | $101.3K | 22,871 | 0.02% | new | NEW |
| Laurion Capital Management LP | $98.6K | 22,263 | 0.00% | new | NEW |
| Quadrature Capital Ltd | $94.9K | 21,420 | 0.00% | new | NEW |
| BAILARD, INC. | $88.2K | 19,900 | 0.00% | 4q | HELD |
| State of Tennessee, Department of Treasury | $87.8K | 19,809 | 0.00% | 13q | -13.5%-$13.7K |
| BARCLAYS PLC | $86.9K | 19,606 | 0.00% | 18q | -18.8%-$20.1K |
| HSBC HOLDINGS PLC | $85.7K | 19,734 | 0.00% | new | NEW |
| ProShare Advisors LLC | $70.5K | 15,925 | 0.00% | 18q | -12.6%-$10.1K |
| Tower Research Capital LLC (TRC) | $69.1K | 15,594 | 0.00% | 20q | +52.3%+$23.7K |
| ALGERT GLOBAL LLC | $66.0K | 14,895 | 0.00% | 2q | -65.0%-$122.6K |
| NorthCrest Asset Manangement, LLC | $63.9K | 13,923 | 0.00% | 15q | -8.5%-$5.9K |
| AMERIPRISE FINANCIAL INC | $62.6K | 14,126 | 0.00% | 17q | -92.5%-$767.0K |
| Aigen Investment Management, LP | $62.1K | 14,029 | 0.02% | new | NEW |
Showing the largest 100 of 155 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-09-29 | 2026-09-23 | Charter or bylaws amended | filing |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 23 | $738.9K | 143,940 | 1 | 5 | 11 | 0.0% |
| Q2 2026 | 155 | $361.1M | 81,517,414 | 29 | 43 | 64 | 0.0% |
| Q1 2026 | 164 | $371.9M | 85,067,748 | 20 | 65 | 49 | 0.0% |
| Q4 2025 | 154 | $414.3M | 82,031,192 | 19 | 48 | 59 | 0.0% |
| Q3 2025 | 151 | $278.6M | 80,288,607 | 19 | 61 | 51 | 0.0% |
| Q2 2025 | 157 | $270.0M | 79,414,940 | 23 | 63 | 47 | 0.0% |
| Q1 2025 | 160 | $311.2M | 77,595,608 | 28 | 48 | 63 | 0.0% |
| Q4 2024 | 152 | $501.4M | 77,254,066 | 27 | 54 | 40 | 0.0% |
| Q3 2024 | 134 | $418.6M | 75,558,975 | 19 | 63 | 31 | 0.0% |
| Q2 2024 | 127 | $428.5M | 76,791,914 | 21 | 53 | 39 | 0.0% |
| Q1 2024 | 122 | $553.1M | 82,366,318 | 23 | 37 | 33 | 0.1% |
| Q4 2023 | 102 | $729.0M | 79,918,292 | 13 | 41 | 29 | 0.0% |
| Q3 2023 | 109 | $428.1M | 77,486,686 | 18 | 53 | 22 | 0.1% |
| Q2 2023 | 103 | $659.5M | 77,036,054 | 27 | 48 | 18 | 0.2% |
| Q1 2023 | 102 | $641.1M | 69,662,767 | 16 | 36 | 33 | 0.1% |
| Q4 2022 | 103 | $661.0M | 64,533,547 | 23 | 37 | 26 | 0.3% |
| Q3 2022 | 84 | $1.0B | 67,822,502 | 16 | 34 | 18 | 0.3% |
| Q2 2022 | 80 | $641.9M | 59,817,944 | 25 | 34 | 15 | 0.0% |
| Q1 2022 | 70 | $582.6M | 54,028,092 | 27 | 31 | 9 | 0.0% |
| Q4 2021 | 50 | $651.4M | 39,906,602 | 10 | 20 | 9 | 0.0% |
| Q3 2021 | 52 | $848.6M | 39,219,669 | 52 | 0 | 0 | 0.0% |