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Check Capital Management’s SiriusXM SIRI Stock Holding History

Check Capital 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 		$173M Buy
5,855,598
+2,913,003
+99% +$78.3M 2.3% 8
2026
Q1 		$67.9M Buy
2,942,595
+59,095
+2% +$1.27M 1.98% 8
2025
Q4 		$57.7M Buy
2,883,500
+821,657
+40% +$17.7M 1.68% 8
2025
Q3 		$48M Buy
2,061,843
+895,247
+77% +$20.7M 1.58% 10
2025
Q2 		$26.8M Sell
1,166,596
-5,748
-0.5% -$124K 0.91% 14
2025
Q1 		$26.4M Buy
1,172,344
+26,613
+2% +$627K 0.77% 14
2024
Q4 		$26.1M Buy
1,145,731
+981,517
+598% +$25M 0.78% 14
2024
Q3 		$3.88M Buy
+164,214
New +$5.1M 0.12% 18

Other funds holding SIRI

Berkshire Hathaway
Berkshire Hathaway Omaha, Nebraska $299B AUM 27.55% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
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
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Boston Partners
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
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Check Capital Management's SIRI Position: Q2 2026 in Review

Check Capital Management increased its SiriusXM (SIRI) stake by 99% in Q2 2026, buying an estimated $78.3M and bringing the position to 5,855,598 shares worth $173M. The position accounts for 2.3% of the portfolio, ranked #8.

Check Capital Management first reported a position in SIRI in Q3 2024 and has held it in 8 quarters since. 598 funds tracked by Wall St. Rank hold SIRI as of Q2 2026.

  • Check Capital Management held 5,855,598 shares of SiriusXM worth $173M as of Q2 2026.
  • Check Capital Management bought 2,913,003 SiriusXM shares in Q2 2026, an estimated $78.3M.
  • SiriusXM made up 2.3% of Check Capital Management's portfolio in Q2 2026, its #8 holding.
  • Check Capital Management first reported a position in SiriusXM in Q3 2024 and has held it in 8 quarters since.
  • 598 funds tracked by Wall St. Rank held SiriusXM as of Q2 2026.

Based on Check Capital Management's 13F filing for Q2 2026, filed 3 Aug 2026.