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Weitz Investment Management’s CoStar Group CSGP Stock Holding History

Weitz Investment 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
Q1 		$20.9M Sell
517,025
-202,825
-28% -$10.6M 1.46% 25
2025
Q4 		$48.4M Hold
719,850
– – 2.87% 13
2025
Q3 		$60.7M Sell
719,850
-45,750
-6% -$4.04M 3.3% 12
2025
Q2 		$61.6M Sell
765,600
-146,000
-16% -$11.4M 3.31% 10
2025
Q1 		$72.2M Buy
911,600
+21,725
+2% +$1.65M 3.84% 7
2024
Q4 		$63.7M Buy
889,875
+3,375
+0.4% +$255K 3.29% 11
2024
Q3 		$66.9M Hold
886,500
– – 3.3% 9
2024
Q2 		$65.7M Buy
886,500
+10,000
+1% +$847K 3.45% 9
2024
Q1 		$84.7M Hold
876,500
– – 4.27% 7
2023
Q4 		$76.6M Sell
876,500
-70,500
-7% -$5.71M 4.04% 7
2023
Q3 		$72.8M Sell
947,000
-121,000
-11% -$10M 4% 6
2023
Q2 		$95.1M Sell
1,068,000
-32,800
-3% -$2.53M 5.07% 3
2023
Q1 		$75.8M Sell
1,100,800
-5,000
-0.5% -$369K 4.37% 6
2022
Q4 		$85.5M Sell
1,105,800
-141,900
-11% -$11.1M 4.84% 3
2022
Q3 		$86.9M Sell
1,247,700
-215,900
-15% -$15M 5.11% 3
2022
Q2 		$88.4M Buy
1,463,600
+20,500
+1% +$1.24M 4.62% 3
2022
Q1 		$96.1M Buy
1,443,100
+313,700
+28% +$20.8M 4.26% 4
2021
Q4 		$89.3M Buy
1,129,400
+189,900
+20% +$15.9M 3.58% 10
2021
Q3 		$80.9M Buy
939,500
+40,000
+4% +$3.46M 3.39% 11
2021
Q2 		$74.5M Buy
899,500
+65,000
+8% +$5.62M 3.14% 11
2021
Q1 		$68.6M Buy
834,500
+35,000
+4% +$3.02M 3.03% 13
2020
Q4 		$73.9M Buy
799,500
+500
+0.1% +$43.8K 3.15% 11
2020
Q3 		$67.8M Hold
799,000
– – 3.18% 8
2020
Q2 		$56.8M Buy
799,000
+150,000
+23% +$9.7M 2.82% 12
2020
Q1 		$38.1M Buy
+649,000
New +$42.3M 2.02% 17

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

Weitz Investment Management's CSGP Position: Q1 2026 in Review

Weitz Investment Management reduced its CoStar Group (CSGP) stake by 28% in Q1 2026, selling an estimated $10.6M and leaving 517,025 shares worth $20.9M. The position accounts for 1.46% of the portfolio, ranked #25.

Weitz Investment Management first reported a position in CSGP in Q1 2020 and has held it in 25 quarters since. The position peaked at $96.1M in Q1 2022. 792 funds tracked by Wall St. Rank hold CSGP as of Q1 2026.

  • Weitz Investment Management held 517,025 shares of CoStar Group worth $20.9M as of Q1 2026.
  • Weitz Investment Management sold 202,825 CoStar Group shares in Q1 2026, an estimated $10.6M.
  • CoStar Group made up 1.46% of Weitz Investment Management's portfolio in Q1 2026, its #25 holding.
  • Weitz Investment Management first reported a position in CoStar Group in Q1 2020 and has held it in 25 quarters since.
  • Weitz Investment Management's CoStar Group position peaked at $96.1M in Q1 2022.
  • 792 funds tracked by Wall St. Rank held CoStar Group as of Q1 2026.

Based on Weitz Investment Management's 13F filing for Q1 2026, filed 14 May 2026.