Current Value of Holding

$545M

Shares

16.3M

% of Portfolio

1.61%

Average Buy Price

$16.9

Avg closing price
Price range

53 Ron Baron Costar Group Trades

Ron Baron acquired 16.3M Costar Group shares worth $545M. That's 1.61% of their equity portfolio (17th largest holding). The investor owns 3.94% of the outstanding Costar Group stock. The first Costar Group trade was made in Q1 2013. Since then Ron Baron bought shares 23 more times and sold shares on 29 occasions. The stake costed the investor $276M, netting the investor a gain of 97% so far.

Avg closing price
Price range
Sold 16.3% shares (-3.18M shares) Q1 2026
Avg closing price $56.05
Price range $39.77 - $68.21
Increased shares by 1.3% (+243k shares) Q4 2025
Avg closing price $70.79
Price range $63.62 - $84.80
Sold 2.2% shares (-424k shares) Q3 2025
Avg closing price $88.29
Price range $81.42 - $96.83
Increased shares by 3.4% (+647k shares) Q2 2025
Avg closing price $77.76
Price range $72.62 - $83.22
Sold 0.9% shares (-171k shares) Q1 2025
Avg closing price $75.94
Price range $69.29 - $80.37
Increased shares by 2.2% (+418k shares) Q4 2024
Avg closing price $75.55
Price range $71.25 - $81.97
Sold 2.5% shares (-486k shares) Q3 2024
Avg closing price $75.83
Price range $71.59 - $79.61
Sold 0.3% shares (-66.6k shares) Q2 2024
Avg closing price $84.75
Price range $72.73 - $95.69
Sold 0.3% shares (-53.7k shares) Q1 2024
Avg closing price $86.08
Price range $81.24 - $97.73
Increased shares by 1.0% (+195k shares) Q4 2023
Avg closing price $80.94
Price range $70.58 - $88.25
Increased shares by 0.5% (+91.4k shares) Q3 2023
Avg closing price $82.85
Price range $76.30 - $91.80
Increased shares by 0.7% (+135k shares) Q2 2023
Avg closing price $77.21
Price range $67.75 - $90.12
Sold 0.7% shares (-140k shares) Q1 2023
Avg closing price $73.79
Price range $65.85 - $81.05
Sold 0.8% shares (-145k shares) Q4 2022
Avg closing price $78.14
Price range $70.30 - $84.16
Increased shares by 0.1% (+17.4k shares) Q3 2022
Avg closing price $69.42
Price range $57.94 - $78.56
Increased shares by 2.1% (+388k shares) Q2 2022
Avg closing price $60.57
Price range $54.19 - $67.64
Increased shares by 1.9% (+350k shares) Q1 2022
Avg closing price $66.39
Price range $53.27 - $78.84
Sold 0.8% shares (-141k shares) Q4 2021
Avg closing price $83.91
Price range $75.23 - $99.74
Sold 0.8% shares (-154k shares) Q3 2021
Avg closing price $86.44
Price range $80.97 - $90.15
Sold 3.1% shares (-609k shares) Q2 2021
Avg closing price $86.45
Price range $81.08 - $93.68

News about Costar Group, Inc. and Ron Baron

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