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	-300	Closed	-$6K	–	381
2025 Q4	$6K	Buy	+300	New	+$6.45K	﹤0.01%	308
2025 Q3	–	Sell	-5,000	Closed	-$115K	–	348
2025 Q2	$115K	Buy	+5,000	New	+$108K	0.01%	213
2025 Q1	–	Sell	-156,000	Closed	-$3.56M	–	412
2024 Q4	$3.56M	Sell	156,000 -514,200	-77%	-$13.1M	0.2%	65
2024 Q3	$15.9M	Buy	670,200 +626,220	+1,424%	+$19.4M	1.43%	20
2024 Q2	$1.24M	Sell	43,980 -59,940	-58%	-$1.79M	0.09%	95
2024 Q1	$4.03M	Sell	103,920 -17,880	-15%	-$850K	0.31%	56
2023 Q4	$6.66M	Buy	121,800 +101,640	+504%	+$4.88M	0.33%	51
2023 Q3	$911K	Buy	+20,160	New	+$937K	0.08%	111

Other funds holding SIRI

Berkshire Hathaway Omaha, Nebraska $263B AUM 16.68% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 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 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 New York $871B AUM 31.28% 1-Year Est. Return

Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 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. 561 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.
561 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.