Jane Street
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Jane Street’s RUM Group Inc RUM Stock Holding History

Jane Street’s Portfolio RUM Stock Details RUM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$312K Sell
61,100
-56,500
-48% -$324K ﹤0.01% 9153
2025
Q4 		$743K Buy
117,600
+74,000
+170% +$507K ﹤0.01% 6809
2025
Q3 		$316K Sell
43,600
-187,100
-81% -$1.53M ﹤0.01% 8798
2025
Q2 		$2.07M Buy
230,700
+55,900
+32% +$478K ﹤0.01% 4360
2025
Q1 		$1.24M Sell
174,800
-237,000
-58% -$2.47M ﹤0.01% 5173
2024
Q4 		$5.36M Buy
411,800
+364,500
+771% +$2.59M ﹤0.01% 2569
2024
Q3 		$254K Sell
47,300
-62,500
-57% -$368K ﹤0.01% 8298
2024
Q2 		$609K Sell
109,800
-125,200
-53% -$806K ﹤0.01% 6696
2024
Q1 		$1.9M Buy
235,000
+78,100
+50% +$504K ﹤0.01% 4225
2023
Q4 		$704K Sell
156,900
-67,400
-30% -$329K ﹤0.01% 6182
2023
Q3 		$1.14M Buy
224,300
+54,400
+32% +$406K ﹤0.01% 4980
2023
Q2 		$1.52M Sell
169,900
-41,700
-20% -$393K ﹤0.01% 4582
2023
Q1 		$2.12M Sell
211,600
-144,100
-41% -$1.3M ﹤0.01% 3728
2022
Q4 		$2.12M Buy
355,700
+235,400
+196% +$2.26M ﹤0.01% 3788
2022
Q3 		$1.47M Sell
120,300
-107,400
-47% -$1.18M ﹤0.01% 4718
2022
Q2 		$2.27M Sell
227,700
-236,000
-51% -$2.57M ﹤0.01% 3922
2022
Q1 		$5.5M Buy
+463,700
New +$5.75M ﹤0.01% 2878

Other funds holding RUM

CF
Cantor Fitzgerald New York $6.78B AUM 29.01% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
CCPM
Cooper Creek Partners Management New York $2.92B AUM 30.49% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Jane Street's RUM Position: Q1 2026 in Review

Jane Street increased its RUM Group Inc (RUM) stake by 216% in Q1 2026, buying an estimated $1.69M and bringing the position to 431,634 shares worth $2.2M. The position accounts for ﹤0.01% of the portfolio, ranked #4899.

Jane Street first reported a position in RUM in Q4 2021 and has held it in 13 quarters since. The position peaked at $3.3M in Q3 2025. 204 funds tracked by Wall St. Rank hold RUM as of Q1 2026.

  • Jane Street held 431,634 shares of RUM Group Inc worth $2.2M as of Q1 2026.
  • Jane Street bought 295,023 RUM Group Inc shares in Q1 2026, an estimated $1.69M.
  • RUM Group Inc made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #4899 holding.
  • Jane Street first reported a position in RUM Group Inc in Q4 2021 and has held it in 13 quarters since.
  • Jane Street's RUM Group Inc position peaked at $3.3M in Q3 2025.
  • 204 funds tracked by Wall St. Rank held RUM Group Inc as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.