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Cytek Biosciences
CTKB

Overview Fund Activity

161 hedge funds and large institutions have $311M invested in Cytek Biosciences in 2025 Q1 according to their latest regulatory filings, with 31 funds opening new positions, 50 increasing their positions, 64 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
161
Holders Change
+9
Holders Change %
+5.92%
% of All Funds
2.19%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
31
Increased
50
Reduced
64
Closed
21
Calls
$2K
Puts
$22K
Net Calls
-$20K
Net Calls Change
-$31K

Top Buyers

1
TCM
Topline Capital Management
California
$5.9M
2
Dimensional Fund Advisors
Dimensional Fund Advisors
Texas
$11.4M
3
CP
CenterBook Partners
Connecticut
$3.39M
4
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
$2.84M
5
AQR Capital Management
AQR Capital Management
Connecticut
$2.62M

Top Sellers

1
Wellington Management Group
Wellington Management Group
Massachusetts
$0
2
Vanguard Group
Vanguard Group
Pennsylvania
$38.6M
3
BCM
Brown Capital Management
Maryland
$29.9M
4
BlackRock
BlackRock
New York
$72.5M
5
Point72 Asset Management
Point72 Asset Management
Connecticut
$70.2K
Name Holding Trade Value Shares
Change 		Shares
Change %
Millennium Management
26
Millennium Management
New York
$1.99M -$1.24M -308,486 -38%
AG
27
Algert Global
California
$1.65M +$243K +60,510 +17%
PAM
28
Panagora Asset Management
Massachusetts
$1.64M +$1.13M +281,928 +222%
Connor, Clark & Lunn Investment Management (CC&L)
29
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$1.44M -$971K -242,118 -40%
Jane Street
30
Jane Street
New York
$1.38M +$1.11M +276,972 +412%
Invesco
31
Invesco
Georgia
$1.35M +$39.7K +9,893 +3%
Bank of America
32
Bank of America
North Carolina
$1.33M -$51.5K -12,839 -4%
AI
33
Acuitas Investments
Washington
$1.33M +$1.33M +331,219 New
Public Sector Pension Investment Board (PSP Investments)
34
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$1.33M +$285K +70,970 +27%
State of Wisconsin Investment Board
35
State of Wisconsin Investment Board
Wisconsin
$1.25M +$205K +51,087 +20%
NL
36
Nuveen LLC
North Carolina
$1.22M +$1.22M +304,985 New
Legal & General Group
37
Legal & General Group
United Kingdom
$1.19M -$65K -16,208 -5%
RhumbLine Advisers
38
RhumbLine Advisers
Massachusetts
$1.19M +$7K +1,745 +0.6%
GC
39
Globeflex Capital
California
$1.16M +$826K +206,077 +244%
Ameriprise
40
Ameriprise
Minnesota
$1.11M +$112K +27,980 +11%
American Century Companies
41
American Century Companies
Missouri
$931K +$110K +27,430 +13%
Susquehanna International Group
42
Susquehanna International Group
Pennsylvania
$863K +$635K +158,393 +278%
Swiss National Bank
43
Swiss National Bank
Switzerland
$851K -$26.9K -6,700 -3%
UBS AM
44
UBS AM
Illinois
$768K -$21.8K -5,434 -3%
XT
45
XTX Topco
Cayman Islands
$683K +$599K +149,373 +714%
HF
46
HRT Financial
New York
$662K +$662K +165,305 New
Citigroup
47
Citigroup
New York
$626K -$16.2K -4,051 -3%
Barclays
48
Barclays
United Kingdom
$613K -$251K -62,561 -29%
AllianceBernstein
49
AllianceBernstein
Tennessee
$609K – – –
PP
50
PDT Partners
New York
$538K +$538K +134,065 New
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