S&CO Inc’s SiriusXM SIRI Stock Holding History

S&CO Inc’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 Q2	$16.8M	Sell	569,206 -12,221	-2%	-$328K	0.97%	29
2026 Q1	$13.4M	Sell	581,427 -120,015	-17%	-$2.58M	0.83%	29
2025 Q4	$14M	Sell	701,442 -10,027	-1%	-$216K	0.87%	30
2025 Q3	$16.6M	Sell	711,469 -6,548	-0.9%	-$151K	1.01%	25
2025 Q2	$16.5M	Sell	718,017 -48,356	-6%	-$1.04M	1.06%	24
2025 Q1	$17.3M	Sell	766,373 -13,897	-2%	-$327K	1.16%	22
2024 Q4	$17.8M	Buy	780,270 +1,215	+0.2%	+$31K	1.21%	22
2024 Q3	$18.4M	Buy	+779,055	New	+$24.2M	1.2%	22

Other funds holding SIRI

Berkshire Hathaway Omaha, Nebraska $299B AUM 27.55% 1-Year Est. Return

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

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

KCMH

Kontiki Capital Management (HK) Hong Kong $1.52B AUM 10.48% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

CCM

Check Capital Management Costa Mesa, California $7.52B AUM 15.3% 1-Year Est. Return

Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return

GCM

Gates Capital Management New York $4.16B AUM 21% 1-Year Est. Return

S&CO Inc's SIRI Position: Q2 2026 in Review

S&CO Inc reduced its SiriusXM (SIRI) stake by 2.1% in Q2 2026, selling an estimated $328K and leaving 569,206 shares worth $16.8M. The position accounts for 0.97% of the portfolio, ranked #29.

S&CO Inc first reported a position in SIRI in Q3 2024 and has held it in 8 quarters since. The position peaked at $18.4M in Q3 2024. 600 funds tracked by Wall St. Rank hold SIRI as of Q2 2026.

S&CO Inc held 569,206 shares of SiriusXM worth $16.8M as of Q2 2026.
S&CO Inc sold 12,221 SiriusXM shares in Q2 2026, an estimated $328K.
SiriusXM made up 0.97% of S&CO Inc's portfolio in Q2 2026, its #29 holding.
S&CO Inc first reported a position in SiriusXM in Q3 2024 and has held it in 8 quarters since.
S&CO Inc's SiriusXM position peaked at $18.4M in Q3 2024.
600 funds tracked by Wall St. Rank held SiriusXM as of Q2 2026.

Based on S&CO Inc's 13F filing for Q2 2026, filed 6 Aug 2026.