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Beck Mack & Oliver’s CoStar Group CSGP Stock Holding History

Beck Mack & Oliver’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 		$59M Sell
2,084,233
-842,742
-29% -$29M 1.15% 26
2026
Q1 		$118M Buy
2,926,975
+702,086
+32% +$36.5M 2.43% 17
2025
Q4 		$150M Buy
2,224,889
+501,457
+29% +$35.5M 2.72% 14
2025
Q3 		$145M Sell
1,723,432
-3,214
-0.2% -$284K 2.64% 14
2025
Q2 		$139M Sell
1,726,646
-83,891
-5% -$6.53M 2.65% 13
2025
Q1 		$143M Buy
1,810,537
+105,194
+6% +$8M 2.87% 11
2024
Q4 		$122M Buy
1,705,343
+571,532
+50% +$43.2M 2.26% 14
2024
Q3 		$85.5M Buy
1,133,811
+130,375
+13% +$9.89M 1.66% 24
2024
Q2 		$74.4M Buy
1,003,436
+135,494
+16% +$11.5M 1.54% 24
2024
Q1 		$83.8M Buy
867,942
+93,932
+12% +$8.09M 1.7% 22
2023
Q4 		$67.6M Sell
774,010
-8,895
-1% -$720K 1.57% 23
2023
Q3 		$60.2M Sell
782,905
-1,706
-0.2% -$141K 1.58% 22
2023
Q2 		$69.8M Buy
784,611
+3,104
+0.4% +$240K 1.82% 16
2023
Q1 		$53.8M Buy
781,507
+6,416
+0.8% +$473K 1.55% 24
2022
Q4 		$59.9M Sell
775,091
-6,970
-0.9% -$545K 1.76% 18
2022
Q3 		$54.5M Buy
782,061
+2,031
+0.3% +$141K 1.76% 18
2022
Q2 		$47.1M Buy
780,030
+300,775
+63% +$18.2M 1.41% 27
2022
Q1 		$31.9M Buy
+479,255
New +$31.8M 0.8% 39

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

Beck Mack & Oliver's CSGP Position: Q2 2026 in Review

Beck Mack & Oliver reduced its CoStar Group (CSGP) stake by 29% in Q2 2026, selling an estimated $29M and leaving 2,084,233 shares worth $59M. The position accounts for 1.15% of the portfolio, ranked #26.

Beck Mack & Oliver first reported a position in CSGP in Q1 2022 and has held it in 18 quarters since. The position peaked at $150M in Q4 2025. 759 funds tracked by Wall St. Rank hold CSGP as of Q2 2026.

  • Beck Mack & Oliver held 2,084,233 shares of CoStar Group worth $59M as of Q2 2026.
  • Beck Mack & Oliver sold 842,742 CoStar Group shares in Q2 2026, an estimated $29M.
  • CoStar Group made up 1.15% of Beck Mack & Oliver's portfolio in Q2 2026, its #26 holding.
  • Beck Mack & Oliver first reported a position in CoStar Group in Q1 2022 and has held it in 18 quarters since.
  • Beck Mack & Oliver's CoStar Group position peaked at $150M in Q4 2025.
  • 759 funds tracked by Wall St. Rank held CoStar Group as of Q2 2026.

Based on Beck Mack & Oliver's 13F filing for Q2 2026, filed 14 Aug 2026.