Who Owns CYTEK BIOSCIENCES INC (CTKB)? -- Institutional Holders (2026-06-30)

190 institutions reported holding $365.8M of CYTEK BIOSCIENCES INC (CTKB) in SEC 13F filings for 2026-06-30. Largest institutional holders: BlackRock, Inc. ($42.4M), MILLENNIUM MANAGEMENT LLC ($41.4M), Boston Partners ($33.9M), VANGUARD GROUP INC ($30.4M), HHLR ADVISORS, LTD. ($29.5M). Source: SEC Form 13F.

RankInstitutionValueSharesChange
1BlackRock, Inc.$42.4M9.6MTrimmed
2MILLENNIUM MANAGEMENT LLC$41.4M9.3MAdded
3Boston Partners$33.9M7.7MAdded
4VANGUARD GROUP INC$30.4M6.9MTrimmed
5HHLR ADVISORS, LTD.$29.5M6.7MHold
6Topline Capital Management, LLC$27.8M6.3MTrimmed
7GEODE CAPITAL MANAGEMENT, LLC$13.6M3.1MAdded
8DIMENSIONAL FUND ADVISORS LP$11.6M2.6MTrimmed
9STATE STREET CORP$11.4M2.6MTrimmed
10GOLDMAN SACHS GROUP INC$9.6M2.2MTrimmed
11ROYCE & ASSOCIATES LP$9.2M2.1MAdded
12Russell Investments Group, Ltd.$6.7M1.5MAdded
13ACADIAN ASSET MANAGEMENT LLC$6.1M1.4MAdded
14BANK OF AMERICA CORP /DE/$5.8M1.3MAdded
15Sixth Street Partners Management Company, L.P.$4.8M1.1MNew
16CHARLES SCHWAB INVESTMENT MANAGEMENT INC$4.8M1.1MTrimmed
17NORTHERN TRUST CORP$4.4M1.0MTrimmed
18HRT FINANCIAL LP$4.4M997,769Added
19ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$4.3M973,833Added
20JANE STREET GROUP, LLC$4.0M906,162New
21TUDOR INVESTMENT CORP ET AL$3.7M837,913Added
22AQR CAPITAL MANAGEMENT LLC$3.6M813,971Trimmed
23CITADEL ADVISORS LLC$3.2M721,470Added
24MORGAN STANLEY$3.1M701,792Trimmed
25Qube Research & Technologies Ltd$3.1M689,821New

Source: SEC Form 13F filings · as of 2026-06-30