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PubMatic
PUBM

Overview Fund Activity

147 hedge funds and large institutions have $319M invested in PubMatic in 2025 Q2 according to their latest regulatory filings, with 24 funds opening new positions, 53 increasing their positions, 46 reducing their positions, and 32 closing their positions.

Holders
147
Holders Change
-10
Holders Change %
-6.37%
% of All Funds
1.97%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
24
Increased
53
Reduced
46
Closed
32
Calls
$6.36M
Puts
$3.51M
Net Calls
+$2.85M
Net Calls Change
+$1.05M

Top Buyers

1
Citadel Advisors
1
Citadel Advisors
Florida
$6.19M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$16.6M
3
CP
3
CenterBook Partners
Connecticut
$2.75M
4
Jacobs Levy Equity Management
4
Jacobs Levy Equity Management
New Jersey
$10.9M
5
Acadian Asset Management
5
Acadian Asset Management
Massachusetts
$7.81M

Top Sellers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$32.5M
2
NC
2
Nixon Capital
Texas
$0
3
Qube Research & Technologies (QRT)
3
Qube Research & Technologies (QRT)
United Kingdom
$404K
4
Morgan Stanley
4
Morgan Stanley
New York
$1.75M
5
Pacer Advisors
5
Pacer Advisors
Pennsylvania
$0
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$42.9M 3,449,941 -2,155 -0.1%
GHC
2
Graham Holdings Company
Virginia
$35.2M 2,831,462 – –
Vanguard Group
3
Vanguard Group
Pennsylvania
$32.5M 2,611,179 -802,424 -24%
Dimensional Fund Advisors
4
Dimensional Fund Advisors
Texas
$18.4M 1,481,621 -41,036 -3%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$16.6M 1,333,433 +255,512 +24%
Renaissance Technologies
6
Renaissance Technologies
New York
$15.2M 1,219,900 +123,400 +11%
Geode Capital Management
7
Geode Capital Management
Massachusetts
$12.3M 985,948 +49,209 +5%
Royal Bank of Canada
8
Royal Bank of Canada
Ontario, Canada
$12.1M 970,347 +66,730 +7%
State Street
9
State Street
Massachusetts
$11.4M 915,724 -14,946 -2%
Jacobs Levy Equity Management
10
Jacobs Levy Equity Management
New Jersey
$10.9M 877,784 +215,486 +33%
Acadian Asset Management
11
Acadian Asset Management
Massachusetts
$7.81M 628,139 +171,106 +37%
Citadel Advisors
12
Citadel Advisors
Florida
$6.19M 497,572 +370,571 +292%
NL
13
Nuveen LLC
North Carolina
$4.99M 401,456 -32,119 -7%
JPMorgan Chase & Co
14
JPMorgan Chase & Co
New York
$4.78M 384,463 -16,536 -4%
Nordea Investment Management
15
Nordea Investment Management
Sweden
$4.44M 346,047 +3,263 +1%
D.E. Shaw & Co
16
D.E. Shaw & Co
New York
$4.43M 356,381 -95,529 -21%
Northern Trust
17
Northern Trust
Illinois
$4.25M 342,031 -17,377 -5%
Charles Schwab
18
Charles Schwab
California
$4.22M 339,323 +11,953 +4%
Goldman Sachs
19
Goldman Sachs
New York
$4.07M 327,141 +41,205 +14%
AC
20
Avestar Capital
New York
$3.79M 305,000 -15,000 -5%
TI
21
Trexquant Investment
Connecticut
$3.22M 258,733 -40,674 -14%
PAM
22
Panagora Asset Management
Massachusetts
$3.2M 257,528 – –
CP
23
CenterBook Partners
Connecticut
$2.75M 220,810 +220,810 New
Jane Street
24
Jane Street
New York
$2.15M 172,870 +63,447 +58%
Ameriprise
25
Ameriprise
Minnesota
$2.08M 167,498 +167,498 New
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