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Gilder Gagnon Howe & Co’s CoStar Group CSGP Stock Holding History

Gilder Gagnon Howe & Co’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 		$2.51M Sell
88,480
-2,614
-3% -$89.9K 0.03% 207
2026
Q1 		$3.67M Sell
91,094
-148,940
-62% -$7.75M 0.04% 166
2025
Q4 		$16.1M Sell
240,034
-38,469
-14% -$2.72M 0.17% 102
2025
Q3 		$23.5M Buy
278,503
+33,071
+13% +$2.92M 0.24% 86
2025
Q2 		$19.7M Sell
245,432
-328
-0.1% -$25.6K 0.21% 89
2025
Q1 		$19.5M Buy
245,760
+79,763
+48% +$6.07M 0.25% 85
2024
Q4 		$11.9M Sell
165,997
-23,314
-12% -$1.76M 0.13% 110
2024
Q3 		$14.3M Buy
189,311
+25,791
+16% +$1.96M 0.17% 104
2024
Q2 		$12.1M Buy
163,520
+21,156
+15% +$1.79M 0.15% 109
2024
Q1 		$13.8M Buy
+142,364
New +$12.3M 0.17% 104
2017
Q2 		– Sell
-702,920
Closed -$14.6M – 288
2017
Q1 		$14.6M Sell
702,920
-99,350
-12% -$2.02M 0.25% 89
2016
Q4 		$15.1M Sell
802,270
-6,200
-0.8% -$122K 0.3% 77
2016
Q3 		$17.5M Sell
808,470
-9,660
-1% -$206K 0.3% 73
2016
Q2 		$17.9M Sell
818,130
-9,980
-1% -$197K 0.36% 67
2016
Q1 		$15.6M Sell
828,110
-254,010
-23% -$4.5M 0.31% 61
2015
Q4 		$22.4M Sell
1,082,120
-8,180
-0.8% -$163K 0.36% 64
2015
Q3 		$18.9M Sell
1,090,300
-209,810
-16% -$4.02M 0.3% 73
2015
Q2 		$26.2M Sell
1,300,110
-4,020
-0.3% -$82K 0.34% 63
2015
Q1 		$25.8M Sell
1,304,130
-170,890
-12% -$3.23M 0.36% 62
2014
Q4 		$27.1M Sell
1,475,020
-2,035,490
-58% -$32.9M 0.4% 63
2014
Q3 		$54.6M Sell
3,510,510
-13,740
-0.4% -$205K 0.79% 37
2014
Q2 		$55.7M Buy
3,524,250
+1,715,080
+95% +$27.8M 0.74% 39
2014
Q1 		$33.8M Sell
1,809,170
-259,240
-13% -$4.89M 0.46% 69
2013
Q4 		$38.2M Sell
2,068,410
-33,430
-2% -$591K 0.54% 57
2013
Q3 		$35.3M Sell
2,101,840
-28,300
-1% -$434K 0.55% 57
2013
Q2 		$27.5M Buy
+2,130,140
New +$24.1M 0.52% 62

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

Gilder Gagnon Howe & Co's CSGP Position: Q2 2026 in Review

Gilder Gagnon Howe & Co reduced its CoStar Group (CSGP) stake by 2.9% in Q2 2026, selling an estimated $89.9K and leaving 88,480 shares worth $2.51M. The position accounts for 0.03% of the portfolio, ranked #207.

Gilder Gagnon Howe & Co first reported a position in CSGP in Q2 2013 and has held it in 26 quarters since. The position peaked at $55.7M in Q2 2014. 757 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Gilder Gagnon Howe & Co held 88,480 shares of CoStar Group worth $2.51M as of Q2 2026.
  • Gilder Gagnon Howe & Co sold 2,614 CoStar Group shares in Q2 2026, an estimated $89.9K.
  • CoStar Group made up 0.03% of Gilder Gagnon Howe & Co's portfolio in Q2 2026, its #207 holding.
  • Gilder Gagnon Howe & Co first reported a position in CoStar Group in Q2 2013 and has held it in 26 quarters since.
  • Gilder Gagnon Howe & Co's CoStar Group position peaked at $55.7M in Q2 2014.
  • 757 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on Gilder Gagnon Howe & Co's 13F filing for Q2 2026, filed 14 Aug 2026.