IMC Chicago’s PubMatic PUBM Stock Holding History

IMC Chicago’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	$1.06M	Buy	81,000 +25,700	+46%	+$267K	﹤0.01%	3784
2026 Q1	$452K	Sell	55,300 -18,300	-25%	-$141K	﹤0.01%	4157
2025 Q4	$653K	Buy	73,600 +24,300	+49%	+$212K	﹤0.01%	3302
2025 Q3	$408K	Buy	49,300 +31,300	+174%	+$319K	﹤0.01%	3288
2025 Q2	$224K	Buy	+18,000	New	+$190K	﹤0.01%	3227
2025 Q1	–	Sell	-21,000	Closed	-$308K	–	3408
2024 Q4	$308K	Buy	21,000 +6,900	+49%	+$107K	﹤0.01%	2971
2024 Q3	$210K	Buy	+14,100	New	+$245K	﹤0.01%	2730

Other funds holding PUBM

GHC

Graham Holdings Company Arlington, Virginia $1.08B AUM 28.93% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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 Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

IMC Chicago's PUBM Position: Q2 2026 in Review

IMC Chicago increased its PubMatic (PUBM) stake by 36% in Q2 2026, buying an estimated $138K and bringing the position to 50,081 shares worth $657K. The position accounts for ﹤0.01% of the portfolio, ranked #4330.

IMC Chicago first reported a position in PUBM in Q3 2025 and has held it in 3 quarters since. 153 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

IMC Chicago held 50,081 shares of PubMatic worth $657K as of Q2 2026.
IMC Chicago bought 13,239 PubMatic shares in Q2 2026, an estimated $138K.
PubMatic made up ﹤0.01% of IMC Chicago's portfolio in Q2 2026, its #4330 holding.
IMC Chicago first reported a position in PubMatic in Q3 2025 and has held it in 3 quarters since.
153 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on IMC Chicago's 13F filing for Q2 2026, filed 6 Aug 2026.