October Effect’s SiriusXM SIRI Stock Holding History

October Effect’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
2025 Q4	–	Sell	-13,520	Closed	-$315K	–	65
2025 Q3	$315K	Sell	13,520 -2,600	-16%	-$60.1K	0.35%	40
2025 Q2	$370K	Buy	+16,120	New	+$347K	0.45%	38

Other funds holding SIRI

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

KCMH

Kontiki Capital Management (HK) Hong Kong $1.43B AUM 9.81% 1-Year Est. Return

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

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return

CCM

Check Capital Management Costa Mesa, California $3.44B AUM 9.15% 1-Year Est. Return

October Effect's SIRI Position: Q4 2025 in Review

October Effect sold out of SiriusXM (SIRI) in Q4 2025, closing a stake of 13,520 shares — an estimated $315K sold.

October Effect first reported a position in SIRI in Q2 2025 and held it in 2 quarters. The position peaked at $370K in Q2 2025. 513 funds tracked by Wall St. Rank hold SIRI as of Q4 2025.

October Effect reported no remaining SiriusXM position as of Q4 2025 after selling out during the quarter.
October Effect sold 13,520 SiriusXM shares in Q4 2025, an estimated $315K.
October Effect first reported a position in SiriusXM in Q2 2025 and held it in 2 quarters.
October Effect's SiriusXM position peaked at $370K in Q2 2025.
513 funds tracked by Wall St. Rank held SiriusXM as of Q4 2025.

Based on October Effect's 13F filing for Q4 2025, filed 20 Jan 2026.