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Rossby Financial’s SiriusXM SIRI Stock Holding History

Rossby Financial’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 		$49.7K Buy
1,681
+7
+0.4% +$188 0.01% 695
2026
Q1 		$39.2K Buy
1,674
+53
+3% +$1.14K 0.01% 815
2025
Q4 		$32.4K Buy
1,621
+593
+58% +$12.7K 0.01% 627
2025
Q3 		$23.3K Buy
1,028
+520
+102% +$12K 0.01% 684
2025
Q2 		$11.7K Buy
508
+453
+824% +$9.75K ﹤0.01% 759
2025
Q1 		$1.19K Buy
+55
New +$1.29K ﹤0.01% 981

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

Rossby Financial's SIRI Position: Q2 2026 in Review

Rossby Financial increased its SiriusXM (SIRI) stake by 0.42% in Q2 2026, buying an estimated $188 and bringing the position to 1,681 shares worth $49.7K. The position accounts for 0.01% of the portfolio, ranked #695.

Rossby Financial first reported a position in SIRI in Q1 2025 and has held it in 6 quarters since. 600 funds tracked by Wall St. Rank hold SIRI as of Q2 2026.

  • Rossby Financial held 1,681 shares of SiriusXM worth $49.7K as of Q2 2026.
  • Rossby Financial bought 7 SiriusXM shares in Q2 2026, an estimated $188.
  • SiriusXM made up 0.01% of Rossby Financial's portfolio in Q2 2026, its #695 holding.
  • Rossby Financial first reported a position in SiriusXM in Q1 2025 and has held it in 6 quarters since.
  • 600 funds tracked by Wall St. Rank held SiriusXM as of Q2 2026.

Based on Rossby Financial's 13F filing for Q2 2026, filed 4 Aug 2026.