Walleye Trading
PUBM icon

Walleye Trading’s PubMatic PUBM Stock Holding History

Walleye Trading’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 		$1.5M Sell
114,200
-15,800
-12% -$164K ﹤0.01% 2030
2026
Q1 		$1.06M Buy
130,000
+123,600
+1,931% +$950K ﹤0.01% 2120
2025
Q4 		$56.8K Sell
6,400
-3,700
-37% -$32.2K ﹤0.01% 3918
2025
Q3 		$83.6K Sell
10,100
-500
-5% -$5.09K ﹤0.01% 3795
2025
Q2 		$132K Buy
+10,600
New +$112K ﹤0.01% 3461
2025
Q1 		– Sell
-45,900
Closed -$674K – 4591
2024
Q4 		$674K Buy
45,900
+33,700
+276% +$522K ﹤0.01% 2410
2024
Q3 		$181K Sell
12,200
-27,200
-69% -$472K ﹤0.01% 3094
2024
Q2 		$800K Sell
39,400
-11,500
-23% -$256K ﹤0.01% 2222
2024
Q1 		$1.21M Buy
50,900
+35,400
+228% +$635K ﹤0.01% 2087
2023
Q4 		$253K Buy
15,500
+7,200
+87% +$104K ﹤0.01% 3623
2023
Q3 		$100K Sell
8,300
-600
-7% -$9.13K ﹤0.01% 3962
2023
Q2 		$163K Buy
8,900
+7,700
+642% +$122K ﹤0.01% 3535
2023
Q1 		$16.6K Sell
1,200
-6,400
-84% -$92.4K ﹤0.01% 4277
2022
Q4 		$97.4K Sell
7,600
-7,000
-48% -$110K ﹤0.01% 3984
2022
Q3 		$243K Buy
+14,600
New +$264K ﹤0.01% 3528
2022
Q2 		– Sell
-100
Closed -$3K – 5562
2022
Q1 		$3K Sell
100
-5,800
-98% -$149K ﹤0.01% 5178
2021
Q4 		$201K Sell
5,900
-5,800
-50% -$189K ﹤0.01% 3855
2021
Q3 		$308K Buy
+11,700
New +$351K ﹤0.01% 3431

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

Walleye Trading's PUBM Position: Q2 2026 in Review

Walleye Trading reduced its PubMatic (PUBM) stake by 12% in Q2 2026, selling an estimated $15.8K and leaving 11,560 shares worth $152K. The position accounts for ﹤0.01% of the portfolio, ranked #3250.

Walleye Trading first reported a position in PUBM in Q3 2021 and has held it in 14 quarters since. The position peaked at $1.33M in Q1 2024. 153 funds tracked by Wall St. Rank hold PUBM as of Q2 2026.

  • Walleye Trading held 11,560 shares of PubMatic worth $152K as of Q2 2026.
  • Walleye Trading sold 1,523 PubMatic shares in Q2 2026, an estimated $15.8K.
  • PubMatic made up ﹤0.01% of Walleye Trading's portfolio in Q2 2026, its #3250 holding.
  • Walleye Trading first reported a position in PubMatic in Q3 2021 and has held it in 14 quarters since.
  • Walleye Trading's PubMatic position peaked at $1.33M in Q1 2024.
  • 153 funds tracked by Wall St. Rank held PubMatic as of Q2 2026.

Based on Walleye Trading's 13F filing for Q2 2026, filed 3 Aug 2026.