Adage Capital Partners
SIRI icon

Adage Capital Partners’s SiriusXM SIRI Stock Holding History

Adage Capital Partners’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 		– Sell
-106,402
Closed -$2.46M – 1080
2026
Q1 		$2.46M Sell
106,402
-100,000
-48% -$2.15M ﹤0.01% 825
2025
Q4 		$4.13M Sell
206,402
-50,000
-20% -$1.07M 0.01% 782
2025
Q3 		$5.97M Sell
256,402
-275,000
-52% -$6.36M 0.01% 715
2025
Q2 		$12.2M Hold
531,402
– – 0.02% 572
2025
Q1 		$12M Sell
531,402
-119,320
-18% -$2.81M 0.02% 548
2024
Q4 		$14.8M Sell
650,722
-600,000
-48% -$15.3M 0.03% 509
2024
Q3 		$29.6M Buy
+1,250,722
New +$38.8M 0.05% 349
2023
Q3 		– Sell
-15,357
Closed -$696K – 930
2023
Q2 		$696K Buy
+15,357
New +$580K ﹤0.01% 776
2021
Q3 		– Sell
-225,000
Closed -$14.7M – 1061
2021
Q2 		$14.7M Buy
+225,000
New +$14.1M 0.03% 574
2020
Q3 		– Sell
-678,439
Closed -$39.8M – 805
2020
Q2 		$39.8M Buy
+678,439
New +$38M 0.1% 226
2015
Q1 		– Sell
-450,000
Closed -$15.8M – 752
2014
Q4 		$15.8M Buy
450,000
+350,000
+350% +$12M 0.04% 454
2014
Q3 		$3.49M Buy
+100,000
New +$3.5M 0.01% 646
2014
Q2 		– Sell
-435,421
Closed -$13.9M – 737
2014
Q1 		$13.9M Buy
435,421
+425,000
+4,078% +$15M 0.04% 447
2013
Q4 		$364K Sell
10,421
-500,000
-98% -$18.7M ﹤0.01% 667
2013
Q3 		$19.8M Sell
510,421
-310,000
-38% -$11.5M 0.06% 382
2013
Q2 		$27.5M Buy
+820,421
New +$27M 0.08% 293

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

Adage Capital Partners's SIRI Position: Q2 2026 in Review

Adage Capital Partners sold out of SiriusXM (SIRI) in Q2 2026, closing a stake of 106,402 shares — an estimated $2.46M sold.

Adage Capital Partners first reported a position in SIRI in Q2 2013 and held it in 16 quarters. The position peaked at $39.8M in Q2 2020. 600 funds tracked by Wall St. Rank hold SIRI as of Q2 2026.

  • Adage Capital Partners reported no remaining SiriusXM position as of Q2 2026 after selling out during the quarter.
  • Adage Capital Partners sold 106,402 SiriusXM shares in Q2 2026, an estimated $2.46M.
  • Adage Capital Partners first reported a position in SiriusXM in Q2 2013 and held it in 16 quarters.
  • Adage Capital Partners's SiriusXM position peaked at $39.8M in Q2 2020.
  • 600 funds tracked by Wall St. Rank held SiriusXM as of Q2 2026.

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