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Diametric Capital’s SiriusXM SIRI Stock Holding History

Diametric 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 		$940K Buy
+31,813
New +$855K 0.1% 237
2025
Q3 		– Sell
-15,426
Closed -$354K – 471
2025
Q2 		$354K Buy
+15,426
New +$332K 0.19% 152
2025
Q1 		– Sell
-14,440
Closed -$329K – 343
2024
Q4 		$329K Sell
14,440
-38,465
-73% -$981K 0.22% 140
2024
Q3 		$1.25M Buy
+52,905
New +$1.64M 0.62% 29

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

Diametric Capital's SIRI Position: Q2 2026 in Review

Diametric Capital opened a new position in SiriusXM (SIRI) in Q2 2026: 31,813 shares worth $940K. The stake represents 0.1% of the portfolio and ranks #237 among its holdings. This is a return to the name: Diametric Capital previously reported a position in SIRI as recently as Q2 2025.

Diametric Capital first reported a position in SIRI in Q3 2024 and has held it in 4 quarters since. The position peaked at $1.25M in Q3 2024. 600 funds tracked by Wall St. Rank hold SIRI as of Q2 2026.

  • Diametric Capital held 31,813 shares of SiriusXM worth $940K as of Q2 2026.
  • SiriusXM was a new Diametric Capital position in Q2 2026.
  • SiriusXM made up 0.1% of Diametric Capital's portfolio in Q2 2026, its #237 holding.
  • Diametric Capital first reported a position in SiriusXM in Q3 2024 and has held it in 4 quarters since.
  • Diametric Capital's SiriusXM position peaked at $1.25M in Q3 2024.
  • 600 funds tracked by Wall St. Rank held SiriusXM as of Q2 2026.

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