Thompson Siegel & Walmsley’s SiriusXM SIRI Stock Holding History

Thompson Siegel & Walmsley’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	$59.2M	Buy	2,564,565 +251,218	+11%	+$5.4M	1.04%	26
2025 Q4	$46.3M	Sell	2,313,347 -130,064	-5%	-$2.8M	0.78%	47
2025 Q3	$56.9M	Buy	2,443,411 +10,152	+0.4%	+$235K	0.92%	33
2025 Q2	$55.9M	Buy	2,433,259 +63,344	+3%	+$1.36M	0.93%	38
2025 Q1	$53.4M	Buy	2,369,915 +115,210	+5%	+$2.71M	0.9%	43
2024 Q4	$51.4M	Sell	2,254,705 -603,579	-21%	-$15.4M	0.8%	50
2024 Q3	$67.6M	Buy	+2,858,284	New	+$88.8M	1.01%	33

Other funds holding SIRI

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

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 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 $2.9T AUM 29.55% 1-Year Est. Return

Thompson Siegel & Walmsley's SIRI Position: Q1 2026 in Review

Thompson Siegel & Walmsley increased its SiriusXM (SIRI) stake by 11% in Q1 2026, buying an estimated $5.4M and bringing the position to 2,564,565 shares worth $59.2M. The position accounts for 1.04% of the portfolio, ranked #26.

Thompson Siegel & Walmsley first reported a position in SIRI in Q3 2024 and has held it in 7 quarters since. The position peaked at $67.6M in Q3 2024. 559 funds tracked by Wall St. Rank hold SIRI as of Q1 2026.

Thompson Siegel & Walmsley held 2,564,565 shares of SiriusXM worth $59.2M as of Q1 2026.
Thompson Siegel & Walmsley bought 251,218 SiriusXM shares in Q1 2026, an estimated $5.4M.
SiriusXM made up 1.04% of Thompson Siegel & Walmsley's portfolio in Q1 2026, its #26 holding.
Thompson Siegel & Walmsley first reported a position in SiriusXM in Q3 2024 and has held it in 7 quarters since.
Thompson Siegel & Walmsley's SiriusXM position peaked at $67.6M in Q3 2024.
559 funds tracked by Wall St. Rank held SiriusXM as of Q1 2026.

Based on Thompson Siegel & Walmsley's 13F filing for Q1 2026, filed 11 May 2026.