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Cytek Biosciences
CTKB

Overview Fund Activity

156 hedge funds and large institutions have $270M invested in Cytek Biosciences in 2025 Q2 according to their latest regulatory filings, with 24 funds opening new positions, 65 increasing their positions, 47 reducing their positions, and 28 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
156
Holders Change
-5
Holders Change %
-3.11%
% of All Funds
2.09%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
24
Increased
65
Reduced
47
Closed
28
Calls
–
Puts
$2K
Net Calls
-$2K
Net Calls Change
+$18K

Top Buyers

1
TCM
1
Topline Capital Management
California
$17.8M
2
RA
2
Royce & Associates
New York
$4.73M
3
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$11.7M
4
AQR Capital Management
4
AQR Capital Management
Connecticut
$4.21M
5
Millennium Management
5
Millennium Management
New York
$3.14M

Top Sellers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$26.4M
2
BlackRock
2
BlackRock
New York
$57.9M
3
CP
3
CenterBook Partners
Connecticut
$0
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$700K
5
TI
5
Trexquant Investment
Connecticut
$153K
Name Holding Trade Value Shares
Change 		Shares
Change %
Prudential Financial
51
Prudential Financial
New Jersey
$383K +$21.4K +6,285 +6%
Citigroup
52
Citigroup
New York
$373K -$158K -46,501 -30%
California State Teachers Retirement System (CalSTRS)
53
California State Teachers Retirement System (CalSTRS)
California
$358K – – –
CAU
54
Caxton Associates (UK)
$352K +$5.34K +1,571 +2%
CSS
55
Cubist Systematic Strategies
Connecticut
$329K +$134K +39,431 +69%
Teacher Retirement System of Texas
56
Teacher Retirement System of Texas
Texas
$315K +$4.98K +1,466 +2%
PP
57
PDT Partners
New York
$312K -$143K -42,196 -31%
Bank of America
58
Bank of America
North Carolina
$311K -$818K -240,509 -72%
Deutsche Bank
59
Deutsche Bank
Germany
$262K -$57.5K -16,906 -18%
Franklin Resources
60
Franklin Resources
California
$260K +$1.51K +444 +0.6%
Wells Fargo
61
Wells Fargo
California
$257K +$13.5K +3,963 +6%
Thrivent Financial for Lutherans
62
Thrivent Financial for Lutherans
Minnesota
$256K -$4.07K -1,199 -2%
MIM
63
MetLife Investment Management
New Jersey
$249K +$18.9K +5,567 +8%
Ohio Public Employees Retirement System (OPERS)
64
Ohio Public Employees Retirement System (OPERS)
Ohio
$234K +$192K +56,333 +448%
Janus Henderson Group
65
Janus Henderson Group
United Kingdom
$221K – – –
Mirae Asset Global ETFs Holdings
66
Mirae Asset Global ETFs Holdings
Hong Kong
$219K -$21.2K -6,224 -9%
SOADOR
67
State of Alaska Department of Revenue
Alaska
$206K +$10.6K +3,141 +5%
T. Rowe Price Associates
68
T. Rowe Price Associates
Maryland
$194K +$11.9K +3,484 +7%
HF
69
HRT Financial
New York
$192K -$369K -108,685 -66%
Creative Planning
70
Creative Planning
Kansas
$189K +$155K +45,652 +455%
BHCM
71
Brevan Howard Capital Management
Jersey
$187K -$84.4K -24,832 -31%
Cerity Partners
72
Cerity Partners
New York
$175K +$175K +51,362 New
New York State Teachers Retirement System (NYSTRS)
73
New York State Teachers Retirement System (NYSTRS)
New York
$165K – – –
LSERS
74
Louisiana State Employees Retirement System
Louisiana
$163K -$4.08K -1,200 -2%
EC
75
EntryPoint Capital
New York
$162K +$162K +47,746 New
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3
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