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Aldebaran Capital’s SiriusXM SIRI Stock Holding History

Aldebaran Capital’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 		$3.37M Sell
114,182
-1,221
-1% -$32.8K 2.53% 16
2026
Q1 		$2.66M Buy
115,403
+9,056
+9% +$195K 2.04% 20
2025
Q4 		$2.13M Sell
106,347
-5,722
-5% -$123K 1.91% 19
2025
Q3 		$2.61M Sell
112,069
-725
-0.6% -$16.8K 2.4% 15
2025
Q2 		$2.59M Buy
112,794
+29,509
+35% +$635K 2.56% 13
2025
Q1 		$1.88M Buy
83,285
+40,172
+93% +$946K 1.78% 14
2024
Q4 		$983K Buy
+43,113
New +$1.1M 0.93% 24

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
CCM
Check Capital Management Costa Mesa, California $7.52B AUM 15.3% 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

Aldebaran Capital's SIRI Position: Q2 2026 in Review

Aldebaran Capital reduced its SiriusXM (SIRI) stake by 1.1% in Q2 2026, selling an estimated $32.8K and leaving 114,182 shares worth $3.37M. The position accounts for 2.53% of the portfolio, ranked #16.

Aldebaran Capital first reported a position in SIRI in Q4 2024 and has held it in 7 quarters since. 600 funds tracked by Wall St. Rank hold SIRI as of Q2 2026.

  • Aldebaran Capital held 114,182 shares of SiriusXM worth $3.37M as of Q2 2026.
  • Aldebaran Capital sold 1,221 SiriusXM shares in Q2 2026, an estimated $32.8K.
  • SiriusXM made up 2.53% of Aldebaran Capital's portfolio in Q2 2026, its #16 holding.
  • Aldebaran Capital first reported a position in SiriusXM in Q4 2024 and has held it in 7 quarters since.
  • 600 funds tracked by Wall St. Rank held SiriusXM as of Q2 2026.

Based on Aldebaran Capital's 13F filing for Q2 2026, filed 14 Aug 2026.