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Weiss Asset Management’s CoStar Group CSGP Stock Holding History

Weiss Asset Management’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 		– Sell
-497,500
Closed -$20.1M – 687
2026
Q1 		$20.1M Buy
497,500
+463,180
+1,350% +$24.1M 0.34% 62
2025
Q4 		$2.31M Buy
+34,320
New +$2.43M 0.03% 288
2024
Q2 		– Sell
-5,157
Closed -$498K – 317
2024
Q1 		$498K Buy
+5,157
New +$444K 0.02% 221
2021
Q2 		– Sell
-22,550
Closed -$1.85M – 501
2021
Q1 		$1.85M Buy
+22,550
New +$1.95M 0.05% 297

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 $3.38T AUM 44.17% 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

Weiss Asset Management's CSGP Position: Q2 2026 in Review

Weiss Asset Management sold out of CoStar Group (CSGP) in Q2 2026, closing a stake of 497,500 shares — an estimated $20.1M sold.

Weiss Asset Management first reported a position in CSGP in Q1 2021 and held it in 4 quarters. The position peaked at $20.1M in Q1 2026. 760 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Weiss Asset Management reported no remaining CoStar Group position as of Q2 2026 after selling out during the quarter.
  • Weiss Asset Management sold 497,500 CoStar Group shares in Q2 2026, an estimated $20.1M.
  • Weiss Asset Management first reported a position in CoStar Group in Q1 2021 and held it in 4 quarters.
  • Weiss Asset Management's CoStar Group position peaked at $20.1M in Q1 2026.
  • 760 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on Weiss Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.