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Westerkirk Capital’s CoStar Group CSGP Stock Holding History

Westerkirk Capital’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
Q1 		$508K Hold
12,600
– – 0.05% 145
2025
Q4 		$847K Buy
12,600
+900
+8% +$63.8K 0.08% 119
2025
Q3 		$987K Hold
11,700
– – 0.11% 144
2025
Q2 		$941K Buy
+11,700
New +$911K 0.12% 149

Other funds holding CSGP

VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Principal Financial Group
Principal Financial Group Des Moines, Iowa $187B AUM 18.48% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
Polen Capital Management
Polen Capital Management Boca Raton, Florida $14.5B AUM 5.7% 1-Year Est. Return

Westerkirk Capital's CSGP Position: Q1 2026 in Review

Westerkirk Capital held its CoStar Group (CSGP) position steady in Q1 2026 at 12,600 shares worth $508K. The position accounts for 0.05% of the portfolio, ranked #145.

Westerkirk Capital first reported a position in CSGP in Q2 2025 and has held it in 4 quarters since. The position peaked at $987K in Q3 2025. 793 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

  • Westerkirk Capital held 12,600 shares of CoStar Group worth $508K as of Q1 2026.
  • Westerkirk Capital left its CoStar Group share count unchanged in Q1 2026.
  • CoStar Group made up 0.05% of Westerkirk Capital's portfolio in Q1 2026, its #145 holding.
  • Westerkirk Capital first reported a position in CoStar Group in Q2 2025 and has held it in 4 quarters since.
  • Westerkirk Capital's CoStar Group position peaked at $987K in Q3 2025.
  • 793 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on Westerkirk Capital's 13F filing for Q1 2026, filed 14 May 2026.