PEAK6
SIRI icon

PEAK6’s SiriusXM SIRI Stock Holding History

PEAK6’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
Q1 		$141K Sell
6,111
-12,583
-67% -$270K ﹤0.01% 2351
2025
Q4 		$374K Buy
18,694
+9,206
+97% +$198K ﹤0.01% 2213
2025
Q3 		$221K Buy
+9,488
New +$219K ﹤0.01% 2431
2025
Q2 		– Sell
-4,830
Closed -$109K – 3461
2025
Q1 		$109K Buy
+4,830
New +$114K ﹤0.01% 2587

Other funds holding SIRI

Berkshire Hathaway
Berkshire Hathaway Omaha, Nebraska $263B AUM 16.68% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
KCMH
Kontiki Capital Management (HK) Hong Kong $1.43B AUM 9.81% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

PEAK6's SIRI Position: Q1 2026 in Review

PEAK6 reduced its SiriusXM (SIRI) stake by 67% in Q1 2026, selling an estimated $270K and leaving 6,111 shares worth $141K. The position accounts for ﹤0.01% of the portfolio, ranked #2351.

PEAK6 first reported a position in SIRI in Q1 2025 and has held it in 4 quarters since. The position peaked at $374K in Q4 2025. 559 funds tracked by Wall St. Rank hold SIRI as of Q1 2026.

  • PEAK6 held 6,111 shares of SiriusXM worth $141K as of Q1 2026.
  • PEAK6 sold 12,583 SiriusXM shares in Q1 2026, an estimated $270K.
  • SiriusXM made up ﹤0.01% of PEAK6's portfolio in Q1 2026, its #2351 holding.
  • PEAK6 first reported a position in SiriusXM in Q1 2025 and has held it in 4 quarters since.
  • PEAK6's SiriusXM position peaked at $374K in Q4 2025.
  • 559 funds tracked by Wall St. Rank held SiriusXM as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.