CSGP COSTAR GROUP INC. COM

Ownership history in BAMCO INC /NY/  ·  93 quarters on record

This page tracks every 13F SEC filing in which BAMCO INC /NY/ reported a position in COSTAR GROUP INC. COM (CSGP). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
6.04% (2020 Q1)
Avg. % of fund
2.26%
First filed
2001 Q4
Last filed
2025 Q4
Quarters held
93
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 19,498,099 +242,533 +1.3% 3.55% $1.31B $67.24
2025 Q3 REDUCED 19,255,566 -424,369 -2.2% 4.31% $1.62B $84.37
2025 Q2 ADDED 19,679,935 +647,413 +3.4% 4.29% $1.58B $80.40
2025 Q1 REDUCED 19,032,522 -171,042 -0.9% 4.43% $1.51B $79.23
2024 Q4 ADDED 19,203,564 +418,128 +2.2% 3.55% $1.37B $71.59
2024 Q3 REDUCED 18,785,436 -485,562 -2.5% 3.76% $1.42B $75.44
2024 Q2 REDUCED 19,270,998 -66,620 -0.3% 4.09% $1.43B $74.14
2024 Q1 REDUCED 19,337,618 -53,665 -0.3% 4.98% $1.87B $96.60
2023 Q4 ADDED 19,391,283 +194,781 +1.0% 4.51% $1.69B $87.39
2023 Q3 ADDED 19,196,502 +91,399 +0.5% 4.29% $1.48B $76.89
83 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    CSGP price (monthly, adj. close)
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