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
Q1 		$4.67M Buy
571,100
+555,100
+3,469% +$4.27M 0.01% 1183
2025
Q4 		$142K Buy
16,000
+11,000
+220% +$95.8K ﹤0.01% 3564
2025
Q3 		$41.4K Sell
5,000
-300
-6% -$3.06K ﹤0.01% 4009
2025
Q2 		$65.9K Buy
+5,300
New +$55.9K ﹤0.01% 3747
2025
Q1 		– Sell
-13,800
Closed -$203K – 4589
2024
Q4 		$203K Buy
13,800
+13,100
+1,871% +$203K ﹤0.01% 3226
2024
Q3 		$10.4K Sell
700
-16,000
-96% -$278K ﹤0.01% 3755
2024
Q2 		$339K Sell
16,700
-800
-5% -$17.8K ﹤0.01% 2774
2024
Q1 		$415K Buy
17,500
+1,000
+6% +$17.9K ﹤0.01% 2922
2023
Q4 		$269K Buy
16,500
+14,500
+725% +$210K ﹤0.01% 3574
2023
Q3 		$24.2K Sell
2,000
-42,000
-95% -$639K ﹤0.01% 4356
2023
Q2 		$804K Buy
44,000
+33,000
+300% +$525K ﹤0.01% 2382
2023
Q1 		$152K Buy
11,000
+5,600
+104% +$80.9K ﹤0.01% 3673
2022
Q4 		$69.2K Sell
5,400
-4,500
-45% -$70.5K ﹤0.01% 4107
2022
Q3 		$165K Sell
9,900
-600
-6% -$10.8K ﹤0.01% 3821
2022
Q2 		$167K Sell
10,500
-1,300
-11% -$27.8K ﹤0.01% 3825
2022
Q1 		$308K Buy
11,800
+11,400
+2,850% +$292K ﹤0.01% 3420
2021
Q4 		$14K Sell
400
-4,500
-92% -$147K ﹤0.01% 5030
2021
Q3 		$129K Buy
+4,900
New +$147K ﹤0.01% 4218

Other funds holding PUBM

GHC
Graham Holdings Company Arlington, Virginia $967M AUM 15.12% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $1.86B AUM 24.52% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $23.8B AUM 25.4% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Walleye Trading's PUBM Position: Q1 2026 in Review

Walleye Trading reduced its PubMatic (PUBM) stake by 57% in Q1 2026, selling an estimated $135K and leaving 13,083 shares worth $107K. The position accounts for ﹤0.01% of the portfolio, ranked #3434.

Walleye Trading first reported a position in PUBM in Q3 2021 and has held it in 13 quarters since. The position peaked at $1.33M in Q1 2024. 152 funds tracked by Wall St. Rank hold PUBM as of Q1 2026.

  • Walleye Trading held 13,083 shares of PubMatic worth $107K as of Q1 2026.
  • Walleye Trading sold 17,497 PubMatic shares in Q1 2026, an estimated $135K.
  • PubMatic made up ﹤0.01% of Walleye Trading's portfolio in Q1 2026, its #3434 holding.
  • Walleye Trading first reported a position in PubMatic in Q3 2021 and has held it in 13 quarters since.
  • Walleye Trading's PubMatic position peaked at $1.33M in Q1 2024.
  • 152 funds tracked by Wall St. Rank held PubMatic as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.