CFO
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Callan Family Office’s CoStar Group CSGP Stock Holding History

Callan Family Office’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 		$333K Sell
11,764
-4,573
-28% -$157K 0.01% 963
2026
Q1 		$659K Sell
16,337
-769
-4% -$40K 0.02% 676
2025
Q4 		$1.15M Buy
17,106
+4,585
+37% +$325K 0.02% 514
2025
Q3 		$1.06M Sell
12,521
-5,152
-29% -$455K 0.03% 365
2025
Q2 		$1.42M Buy
17,673
+10,064
+132% +$784K 0.04% 328
2025
Q1 		$603K Buy
7,609
+1,205
+19% +$91.7K 0.05% 288
2024
Q4 		$458K Buy
+6,404
New +$484K 0.03% 387

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

Callan Family Office's CSGP Position: Q2 2026 in Review

Callan Family Office reduced its CoStar Group (CSGP) stake by 28% in Q2 2026, selling an estimated $157K and leaving 11,764 shares worth $333K. The position accounts for 0.01% of the portfolio, ranked #963.

Callan Family Office first reported a position in CSGP in Q4 2024 and has held it in 7 quarters since. The position peaked at $1.42M in Q2 2025. 757 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Callan Family Office held 11,764 shares of CoStar Group worth $333K as of Q2 2026.
  • Callan Family Office sold 4,573 CoStar Group shares in Q2 2026, an estimated $157K.
  • CoStar Group made up 0.01% of Callan Family Office's portfolio in Q2 2026, its #963 holding.
  • Callan Family Office first reported a position in CoStar Group in Q4 2024 and has held it in 7 quarters since.
  • Callan Family Office's CoStar Group position peaked at $1.42M in Q2 2025.
  • 757 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on Callan Family Office's 13F filing for Q2 2026, filed 11 Aug 2026.