MCM
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MAI Capital Management’s CoStar Group CSGP Stock Holding History

MAI Capital 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 		$621K Buy
21,915
+17,942
+452% +$617K ﹤0.01% 1198
2026
Q1 		$160K Buy
3,973
+1,313
+49% +$68.4K ﹤0.01% 1583
2025
Q4 		$179K Sell
2,660
-2,531
-49% -$179K ﹤0.01% 1355
2025
Q3 		$438K Buy
5,191
+1,374
+36% +$121K ﹤0.01% 968
2025
Q2 		$307K Buy
3,817
+1,838
+93% +$143K ﹤0.01% 1002
2025
Q1 		$157K Buy
1,979
+476
+32% +$36.2K ﹤0.01% 1212
2024
Q4 		$108K Buy
+1,503
New +$114K ﹤0.01% 1396

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

MAI Capital Management's CSGP Position: Q2 2026 in Review

MAI Capital Management increased its CoStar Group (CSGP) stake by 452% in Q2 2026, buying an estimated $617K and bringing the position to 21,915 shares worth $621K. The position accounts for ﹤0.01% of the portfolio, ranked #1198.

MAI Capital Management first reported a position in CSGP in Q4 2024 and has held it in 7 quarters since. 757 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • MAI Capital Management held 21,915 shares of CoStar Group worth $621K as of Q2 2026.
  • MAI Capital Management bought 17,942 CoStar Group shares in Q2 2026, an estimated $617K.
  • CoStar Group made up ﹤0.01% of MAI Capital Management's portfolio in Q2 2026, its #1198 holding.
  • MAI Capital Management first reported a position in CoStar Group in Q4 2024 and has held it in 7 quarters since.
  • 757 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

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