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Marathon Trading Investment Management’s SiriusXM SIRI Stock Holding History

Marathon Trading Investment Management’s Portfolio SIRI Stock Details SIRI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-7,294
Closed -$146K – 380
2025
Q4 		$146K Hold
7,294
– – ﹤0.01% 258
2025
Q3 		$170K Sell
7,294
-16,322
-69% -$378K 0.01% 218
2025
Q2 		$542K Sell
23,616
-12,900
-35% -$278K 0.06% 124
2025
Q1 		$823K Sell
36,516
-34,849
-49% -$821K 0.11% 103
2024
Q4 		$1.63M Sell
71,365
-118,386
-62% -$3.02M 0.09% 90
2024
Q3 		$4.49M Buy
189,751
+189,621
+145,862% +$5.89M 0.41% 42
2024
Q2 		$3.68K Sell
130
-3,751
-97% -$112K ﹤0.01% 277
2024
Q1 		$151K Buy
3,881
+2,744
+241% +$130K 0.01% 280
2023
Q4 		$62.2K Buy
1,137
+907
+394% +$43.6K ﹤0.01% 313
2023
Q3 		$10.4K Buy
+230
New +$10.7K ﹤0.01% 298
2019
Q2 		– Sell
-1,390
Closed -$79K – 282
2019
Q1 		$79K Sell
1,390
-550
-28% -$32.8K 0.01% 223
2018
Q4 		$111K Sell
1,940
-7,700
-80% -$468K 0.01% 220
2018
Q3 		$609K Buy
+9,640
New +$671K 0.05% 133
2014
Q2 		– Sell
-4,000
Closed -$128K – 369
2014
Q1 		$128K Buy
+4,000
New +$141K ﹤0.01% 258

Other funds holding SIRI

Berkshire Hathaway
Berkshire Hathaway Omaha, Nebraska $263B AUM 16.68% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
KCMH
Kontiki Capital Management (HK) Hong Kong $1.43B AUM 9.81% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Marathon Trading Investment Management's SIRI Position: Q1 2026 in Review

Marathon Trading Investment Management sold out of SiriusXM (SIRI) in Q1 2026, closing a stake of 7,294 shares — an estimated $146K sold.

Marathon Trading Investment Management first reported a position in SIRI in Q1 2014 and held it in 14 quarters. The position peaked at $4.49M in Q3 2024. 559 funds tracked by Wall St. Rank hold SIRI as of Q1 2026.

  • Marathon Trading Investment Management reported no remaining SiriusXM position as of Q1 2026 after selling out during the quarter.
  • Marathon Trading Investment Management sold 7,294 SiriusXM shares in Q1 2026, an estimated $146K.
  • Marathon Trading Investment Management first reported a position in SiriusXM in Q1 2014 and held it in 14 quarters.
  • Marathon Trading Investment Management's SiriusXM position peaked at $4.49M in Q3 2024.
  • 559 funds tracked by Wall St. Rank held SiriusXM as of Q1 2026.

Based on Marathon Trading Investment Management's 13F filing for Q1 2026, filed 14 May 2026.