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Cornerstone Investment Partners’s PubMatic PUBM Stock Holding History

Cornerstone Investment Partners’s Portfolio PUBM Stock Details PUBM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$297K Buy
+22,630
New +$235K 0.01% 181
2024
Q2 		– Sell
-9,371
Closed -$222K – 259
2024
Q1 		$222K Buy
+9,371
New +$168K 0.01% 161
2022
Q1 		– Sell
-6,200
Closed -$211K – 275
2021
Q4 		$211K Buy
+6,200
New +$202K 0.01% 228

Other funds holding PUBM

GHC
Graham Holdings Company Arlington, Virginia $1.08B AUM 28.93% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
WCM
Whitefort Capital Management New York $406M AUM 84.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Cornerstone Investment Partners's PUBM Position: Q2 2026 in Review

Cornerstone Investment Partners opened a new position in PubMatic (PUBM) in Q2 2026: 22,630 shares worth $297K. The stake represents 0.01% of the portfolio and ranks #181 among its holdings. This is a return to the name: Cornerstone Investment Partners previously reported a position in PUBM as recently as Q1 2024.

Cornerstone Investment Partners first reported a position in PUBM in Q4 2021 and has held it in 3 quarters since. 153 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

  • Cornerstone Investment Partners held 22,630 shares of PubMatic worth $297K as of Q2 2026.
  • PubMatic was a new Cornerstone Investment Partners position in Q2 2026.
  • PubMatic made up 0.01% of Cornerstone Investment Partners's portfolio in Q2 2026, its #181 holding.
  • Cornerstone Investment Partners first reported a position in PubMatic in Q4 2021 and has held it in 3 quarters since.
  • 153 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on Cornerstone Investment Partners's 13F filing for Q2 2026, filed 7 Aug 2026.