Granahan Investment Management, LLC Costar Group, Inc. Transaction History

Granahan Investment Management, LLC

  • $2.11 Billion
  • Q3 2025

A detailed history of Granahan Investment Management, LLC transactions in Costar Group, Inc. stock. As of the latest transaction made, Granahan Investment Management, LLC holds 270,166 shares of CSGP stock, worth $18.4 Million. This represents 1.08% of its overall portfolio holdings.

Number of Shares
270,166
Previous 300,932 10.22%
Holding current value
$18.4 Million
Previous $24.2 Million 5.79%
% of portfolio
1.08%
Previous 1.15%

Shares

33 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2025

Nov 14, 2025
SELL
$81.42 - $96.83 $2.5 Million - $2.98 Million
-30,766 Reduced 10.22%
270,166 $22.8 Million
Q2 2025

Aug 14, 2025
SELL
$72.62 - $83.22 $3.4 Million - $3.89 Million
-46,761 Reduced 13.45%
300,932 $24.2 Million
Q1 2025

May 15, 2025
SELL
$69.29 - $80.37 $728,445 - $844,929
-10,513 Reduced 2.93%
347,693 $27.5 Million
Q4 2024

Feb 14, 2025
SELL
$69.7 - $81.97 $357,282 - $420,178
-5,126 Reduced 1.41%
358,206 $25.6 Million
Q3 2024

Nov 14, 2024
SELL
$71.59 - $79.61 $4.3 Million - $4.78 Million
-60,094 Reduced 14.19%
363,332 $27.4 Million
Q2 2024

Aug 14, 2024
SELL
$72.73 - $95.69 $13.6 Million - $17.9 Million
-187,572 Reduced 30.7%
423,426 $31.4 Million
Q1 2024

May 15, 2024
SELL
$81.24 - $97.73 $8.21 Million - $9.88 Million
-101,086 Reduced 14.2%
610,998 $59 Million
Q4 2023

Feb 14, 2024
SELL
$70.58 - $88.25 $3.74 Million - $4.68 Million
-53,050 Reduced 6.93%
712,084 $62.2 Million
Q3 2023

Nov 14, 2023
SELL
$76.3 - $91.8 $2.01 Million - $2.42 Million
-26,334 Reduced 3.33%
765,134 $58.8 Million
Q2 2023

Aug 14, 2023
SELL
$67.75 - $90.12 $235,431 - $313,167
-3,475 Reduced 0.44%
791,468 $70.4 Million
Q1 2023

May 15, 2023
SELL
$65.85 - $81.05 $37.7 Million - $46.4 Million
-571,919 Reduced 41.84%
794,943 $54.7 Million
Q4 2022

Feb 14, 2023
SELL
$70.3 - $84.16 $10.2 Million - $12.2 Million
-145,365 Reduced 9.61%
1,366,862 $106 Million
Q3 2022

Nov 14, 2022
SELL
$57.94 - $78.56 $11.9 Million - $16.2 Million
-205,824 Reduced 11.98%
1,512,227 $105 Million
Q2 2022

Aug 15, 2022
SELL
$54.19 - $67.64 $9.78 Million - $12.2 Million
-180,518 Reduced 9.51%
1,718,051 $104 Million
Q1 2022

May 16, 2022
BUY
$53.27 - $78.84 $32.4 Million - $48 Million
608,380 Added 47.15%
1,898,569 $126 Million
Q4 2021

Feb 14, 2022
SELL
$75.23 - $99.74 $3.83 Million - $5.07 Million
-50,864 Reduced 3.79%
1,290,189 $102 Million
Q3 2021

Nov 15, 2021
SELL
$80.97 - $90.15 $1.25 Million - $1.39 Million
-15,377 Reduced 1.13%
1,341,053 $115 Million
Q2 2021

Aug 16, 2021
BUY
$81.08 - $93.68 $98.7 Million - $114 Million
1,217,762 Added 878.19%
1,356,430 $112 Million
Q1 2021

May 17, 2021
BUY
$75.85 - $93.98 $1.14 Million - $1.41 Million
15,017 Added 12.14%
138,668 $114 Million
Q4 2020

Feb 12, 2021
BUY
$79.33 - $93.95 $1 Million - $1.18 Million
12,610 Added 11.36%
123,651 $114 Million
Q3 2020

Nov 12, 2020
SELL
$68.0 - $87.78 $281,588 - $363,496
-4,141 Reduced 3.6%
111,041 $94.2 Million
Q2 2020

Aug 14, 2020
BUY
$52.67 - $72.46 $57,620 - $79,271
1,094 Added 0.96%
115,182 $81.9 Million
Q1 2020

May 12, 2020
SELL
$52.34 - $74.01 $1.93 Million - $2.72 Million
-36,807 Reduced 24.39%
114,088 $67 Million
Q4 2019

Feb 14, 2020
BUY
$54.36 - $61.74 $471,029 - $534,977
8,665 Added 6.09%
150,895 $90.3 Million
Q3 2019

Nov 15, 2019
SELL
$55.94 - $63.43 $1.66 Million - $1.89 Million
-29,732 Reduced 17.29%
142,230 $84.4 Million
Q2 2019

Aug 14, 2019
BUY
$47.44 - $56.05 $519,800 - $614,139
10,957 Added 6.81%
171,962 $95.3 Million
Q1 2019

May 14, 2019
BUY
$32.73 - $47.69 $445,782 - $649,537
13,620 Added 9.24%
161,005 $75.1 Million
Q4 2018

Feb 13, 2019
BUY
$32.04 - $41.44 $383,550 - $496,078
11,971 Added 8.84%
147,385 $49.7 Million
Q3 2018

Nov 13, 2018
BUY
$40.85 - $44.67 $395,060 - $432,003
9,671 Added 7.69%
135,414 $57 Million
Q2 2018

Aug 15, 2018
SELL
$35.11 - $41.72 $121,199 - $144,017
-3,452 Reduced 2.67%
125,743 $51.9 Million
Q1 2018

May 14, 2018
BUY
$29.68 - $37.58 $38,435 - $48,666
1,295 Added 1.01%
129,195 $46.9 Million
Q4 2017

Feb 12, 2018
SELL
$27.16 - $31.02 $483,203 - $551,876
-17,791 Reduced 12.21%
127,900 $38 Million
Q3 2017

Nov 14, 2017
BUY
$26.61 - $28.7 $3.88 Million - $4.18 Million
145,691
145,691 $39.1 Million

Others Institutions Holding CSGP

# of Institutions
1,011
Shares Held
416M
Call Options Held
1.79M
Put Options Held
800K
View Full List

About COSTAR GROUP, INC.

CSGP Quotes by TradingView
  • Ticker CSGP
  • Exchange NASDAQ
  • Sector Real Estate
  • Industry Real Estate Services
  • Shares Outstandng 406,689,984
  • Market Cap $27.7B
  • Description
  • CoStar Group, Inc. provides information, analytics, and online marketplace services to the commercial real estate, hospitality, residential, and related professionals industries in the United States, Canada, Europe, the Asia Pacific, and Latin America. It offers CoStar Property that provides inventory of office, industrial, retail, multifamily, ...
More about CSGP
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