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Spyglass Capital Management’s CoStar Group CSGP Stock Holding History

Spyglass 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 		$76.3M Buy
2,694,697
+1,583,473
+142% +$54.5M 4.13% 10
2026
Q1 		$44.8M Sell
1,111,224
-467,225
-30% -$24.3M 3.17% 19
2025
Q4 		$106M Buy
1,578,449
+575,732
+57% +$40.8M 5.31% 5
2025
Q3 		$84.6M Buy
1,002,717
+199,435
+25% +$17.6M 4.51% 9
2025
Q2 		$64.6M Buy
803,282
+307,424
+62% +$23.9M 3.81% 13
2025
Q1 		$39.3M Sell
495,858
-725,749
-59% -$55.2M 2.7% 23
2024
Q4 		$87.5M Buy
1,221,607
+392,603
+47% +$29.6M 4.92% 6
2024
Q3 		$62.5M Sell
829,004
-12,300
-1% -$933K 4.11% 10
2024
Q2 		$62.4M Buy
841,304
+35,111
+4% +$2.98M 4.57% 8
2024
Q1 		$77.9M Buy
806,193
+148,396
+23% +$12.8M 5.19% 4
2023
Q4 		$57.5M Buy
+657,797
New +$53.2M 4.14% 13

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

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

Spyglass Capital Management increased its CoStar Group (CSGP) stake by 142% in Q2 2026, buying an estimated $54.5M and bringing the position to 2,694,697 shares worth $76.3M. The position accounts for 4.13% of the portfolio, ranked #10.

Spyglass Capital Management first reported a position in CSGP in Q4 2023 and has held it in 11 quarters since. The position peaked at $106M in Q4 2025. 760 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Spyglass Capital Management held 2,694,697 shares of CoStar Group worth $76.3M as of Q2 2026.
  • Spyglass Capital Management bought 1,583,473 CoStar Group shares in Q2 2026, an estimated $54.5M.
  • CoStar Group made up 4.13% of Spyglass Capital Management's portfolio in Q2 2026, its #10 holding.
  • Spyglass Capital Management first reported a position in CoStar Group in Q4 2023 and has held it in 11 quarters since.
  • Spyglass Capital Management's CoStar Group position peaked at $106M in Q4 2025.
  • 760 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

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