Columbia Asset Management’s SiriusXM SIRI Stock Holding History

Columbia Asset 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 Q2	$340K	Hold	11,495	–	–	0.06%	136
2026 Q1	$265K	Sell	11,495 -1,500	-12%	-$32.2K	0.05%	154
2025 Q4	$260K	Buy	12,995 +1,765	+16%	+$37.9K	0.05%	150
2025 Q3	$261K	Sell	11,230 -1,050	-9%	-$24.3K	0.05%	149
2025 Q2	$282K	Buy	12,280 +3,100	+34%	+$66.7K	0.06%	142
2025 Q1	$207K	Buy	+9,180	New	+$216K	0.04%	194
2023 Q1	–	Sell	-2,030	Closed	-$119K	–	166
2022 Q4	$119K	Sell	2,030 -820	-29%	-$50.4K	0.03%	160
2022 Q3	$163K	Sell	2,850 -100	-3%	-$6.29K	0.04%	161
2022 Q2	$181K	Buy	+2,950	New	+$183K	0.05%	164
2021 Q4	$381K	Sell	6,000 -100	-2%	-$6.25K	0.08%	146
2021 Q3	$372K	Buy	6,100 +190	+3%	+$11.9K	0.08%	138
2021 Q2	$387K	Sell	5,910 -1,230	-17%	-$77.1K	0.09%	138
2021 Q1	$435K	Buy	7,140 +955	+15%	+$58.2K	0.08%	131
2020 Q4	$394K	Buy	6,185 +2,040	+49%	+$125K	0.08%	137
2020 Q3	$222K	Buy	+4,145	New	+$238K	0.05%	151

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

Columbia Asset Management's SIRI Position: Q2 2026 in Review

Columbia Asset Management held its SiriusXM (SIRI) position steady in Q2 2026 at 11,495 shares worth $340K. The position accounts for 0.06% of the portfolio, ranked #136.

Columbia Asset Management first reported a position in SIRI in Q3 2020 and has held it in 15 quarters since. The position peaked at $435K in Q1 2021. 600 funds tracked by Wall St. Rank hold SIRI as of Q2 2026.

Columbia Asset Management held 11,495 shares of SiriusXM worth $340K as of Q2 2026.
Columbia Asset Management left its SiriusXM share count unchanged in Q2 2026.
SiriusXM made up 0.06% of Columbia Asset Management's portfolio in Q2 2026, its #136 holding.
Columbia Asset Management first reported a position in SiriusXM in Q3 2020 and has held it in 15 quarters since.
Columbia Asset Management's SiriusXM position peaked at $435K in Q1 2021.
600 funds tracked by Wall St. Rank held SiriusXM as of Q2 2026.

Based on Columbia Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.