PUBM icon

PubMatic
PUBM

Overview Fund Activity

156 hedge funds and large institutions have $238M invested in PubMatic in 2025 Q1 according to their latest regulatory filings, with 37 funds opening new positions, 40 increasing their positions, 53 reducing their positions, and 39 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
156
Holders Change
-4
Holders Change %
-2.5%
% of All Funds
2.12%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
37
Increased
40
Reduced
53
Closed
39
Calls
$3.74M
Puts
$1.94M
Net Calls
+$1.8M
Net Calls Change
+$5.41M

Top Buyers

1
GHC
Graham Holdings Company
Virginia
+$4.57M
2
D.E. Shaw & Co
D.E. Shaw & Co
New York
+$3.68M
3
Acadian Asset Management
Acadian Asset Management
Massachusetts
+$3.46M
4
Pacer Advisors
Pacer Advisors
Pennsylvania
+$2.46M
5
Wellington Management Group
Wellington Management Group
Massachusetts
+$1.64M

Top Sellers

1
Vanguard Group
Vanguard Group
Pennsylvania
-$7.56M
2
State of Wisconsin Investment Board
State of Wisconsin Investment Board
Wisconsin
-$2.55M
3
HIM
Hillsdale Investment Management
Ontario, Canada
-$2.49M
4
Millennium Management
Millennium Management
New York
-$2.18M
5
EAM
EFG Asset Management
Oregon
-$1.96M
Name Holding Trade Value Shares
Change 		Shares
Change %
American Century Companies
26
American Century Companies
Missouri
$2.14M -$349K -38,167 -14%
Susquehanna International Group
27
Susquehanna International Group
Pennsylvania
$1.74M +$1.48M +162,285 +588%
Deutsche Bank
28
Deutsche Bank
Germany
$1.49M +$617K +67,477 +71%
Mirae Asset Global ETFs Holdings
29
Mirae Asset Global ETFs Holdings
Hong Kong
$1.27M +$2.87K +314 +0.2%
Citadel Advisors
30
Citadel Advisors
Florida
$1.16M -$334K -36,561 -22%
Millennium Management
31
Millennium Management
New York
$1.12M -$2.18M -238,657 -66%
Bank of New York Mellon
32
Bank of New York Mellon
New York
$1.11M -$185K -20,214 -14%
PH
33
Pinnacle Holdings
Oklahoma
$1.04M +$1.04M +113,736 New
Jane Street
34
Jane Street
New York
$1M +$199K +21,824 +25%
CSS
35
Cubist Systematic Strategies
Connecticut
$974K +$956K +104,552 +5,305%
Barclays
36
Barclays
United Kingdom
$937K +$35.2K +3,857 +4%
Victory Capital Management
37
Victory Capital Management
Texas
$848K +$193K +21,065 +29%
ECM
38
ExodusPoint Capital Management
New York
$829K +$829K +90,699 New
UBS AM
39
UBS AM
Illinois
$737K -$125K -13,653 -14%
Swiss National Bank
40
Swiss National Bank
Switzerland
$694K -$10.1K -1,100 -1%
Invesco
41
Invesco
Georgia
$681K +$218K +23,902 +47%
LFS
42
Leibman Financial Services
Nebraska
$577K +$59.4K +6,494 +11%
Franklin Resources
43
Franklin Resources
California
$560K -$4.65K -509 -0.8%
Wells Fargo
44
Wells Fargo
California
$555K +$10.7K +1,167 +2%
RhumbLine Advisers
45
RhumbLine Advisers
Massachusetts
$548K +$12.3K +1,341 +2%
EGM
46
Engineers Gate Manager
New York
$548K +$548K +59,905 New
Verition Fund Management
47
Verition Fund Management
Connecticut
$545K +$348K +38,057 +176%
GCM
48
Graham Capital Management
Connecticut
$520K +$97.2K +10,636 +23%
AG
49
Algert Global
California
$486K – – –
UBS Group
50
UBS Group
Switzerland
$485K -$1.51M -165,151 -76%
1
2
3 4 5