Adage Capital Partners
CSGP icon

Adage Capital Partners’s CoStar Group CSGP Stock Holding History

Adage Capital Partners’s Portfolio CSGP Stock Details CSGP Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$10.3M Sell
363,900
-14,200
-4% -$488K 0.01% 716
2026
Q1 		$15.3M Sell
378,100
-4,500
-1% -$234K 0.02% 574
2025
Q4 		$25.7M Sell
382,600
-3,100
-0.8% -$220K 0.04% 411
2025
Q3 		$32.5M Sell
385,700
-700
-0.2% -$61.9K 0.05% 340
2025
Q2 		$31.1M Buy
386,400
+1,800
+0.5% +$140K 0.05% 339
2025
Q1 		$30.5M Buy
384,600
+133,052
+53% +$10.1M 0.06% 322
2024
Q4 		$18M Sell
251,548
-604
-0.2% -$45.6K 0.03% 467
2024
Q3 		$19M Sell
252,152
-26,548
-10% -$2.01M 0.03% 463
2024
Q2 		$20.7M Sell
278,700
-121,800
-30% -$10.3M 0.04% 426
2024
Q1 		$38.7M Buy
400,500
+53,800
+16% +$4.63M 0.07% 289
2023
Q4 		$30.3M Sell
346,700
-284,300
-45% -$23M 0.06% 314
2023
Q3 		$48.5M Buy
631,000
+214,000
+51% +$17.7M 0.11% 203
2023
Q2 		$37.1M Buy
417,000
+9,800
+2% +$757K 0.08% 254
2023
Q1 		$28M Sell
407,200
-6,500
-2% -$480K 0.06% 332
2022
Q4 		$32M Buy
413,700
+10,300
+3% +$805K 0.08% 303
2022
Q3 		$28.1M Buy
+403,400
New +$28M 0.07% 313

Other funds holding CSGP

Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BAMCO Inc
BAMCO Inc New York $66.6B AUM 7.35% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
ACM
AKRE Capital Management Middleburg, Virginia $5.12B AUM 19.08% 1-Year Est. Return
Polen Capital Management
Polen Capital Management Boca Raton, Florida $11.6B AUM 8.03% 1-Year Est. Return

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

Adage Capital Partners reduced its CoStar Group (CSGP) stake by 3.8% in Q2 2026, selling an estimated $488K and leaving 363,900 shares worth $10.3M. The position accounts for 0.01% of the portfolio, ranked #716.

Adage Capital Partners first reported a position in CSGP in Q3 2022 and has held it in 16 quarters since. The position peaked at $48.5M in Q3 2023. 758 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Adage Capital Partners held 363,900 shares of CoStar Group worth $10.3M as of Q2 2026.
  • Adage Capital Partners sold 14,200 CoStar Group shares in Q2 2026, an estimated $488K.
  • CoStar Group made up 0.01% of Adage Capital Partners's portfolio in Q2 2026, its #716 holding.
  • Adage Capital Partners first reported a position in CoStar Group in Q3 2022 and has held it in 16 quarters since.
  • Adage Capital Partners's CoStar Group position peaked at $48.5M in Q3 2023.
  • 758 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

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