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PubMatic
PUBM
PUBM
153 hedge funds and large institutions have $236M invested in PubMatic in 2026 Q1 according to their latest regulatory filings, with 33 funds opening new positions, 59 increasing their positions, 41 reducing their positions, and 30 closing their positions.
New
Increased
Maintained
Reduced
Closed
200% more funds holding in top 10
Funds holding in top 10: 1 → 3 (+2)
44% more repeat investments, than reductions
Existing positions increased: 59 | Existing positions reduced: 41
10% more first-time investments, than exits
New positions opened: 33 | Existing positions closed: 30
1.22% more ownership
Funds ownership: 72.46% → 73.68% (+1.2%)
1% more funds holding
Funds holding: 152 → 153 (+1)
4% less capital invested
Capital invested by funds: $245M → $236M (-$9.26M)
21% less call options, than puts
Call options by funds: $7.64M | Put options by funds: $9.72M
Holders
153
Holders Change
+1
Holders Change %
+0.66%
% of All Funds
1.88%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.04%
New
33
Increased
59
Reduced
41
Closed
30
Calls
$7.64M
Puts
$9.72M
Net Calls
-$2.08M
Net Calls Change
-$3.53M
Top Buyers
Top Sellers
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$10.4M |
| 2 |
Millennium Management
New York
|
-$6.35M |
| 3 |
AG
Algert Global
San Francisco,
California
|
-$2.79M |
| 4 |
Walleye Capital
New York
|
-$1.39M |
| 5 |
Marshall Wace
London,
United Kingdom
|
-$1.29M |