Blair William & CO Costar Group, Inc. Transaction History

Blair William & CO

$36.3 Billion
Q3 2025

A detailed history of Blair William & CO transactions in Costar Group, Inc. stock. As of the latest transaction made, Blair William & CO holds 3,128,473 shares of CSGP stock, worth $213 Million. This represents 0.73% of its overall portfolio holdings.

Number of Shares

3,128,473

Previous 2,871,162 8.96%

Holding current value

$213 Million

Previous $231 Million 14.34%

% of portfolio

0.73%

Previous 0.66%

33 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 12, 2025	BUY	$81.42 - $96.83 $21 Million - $24.9 Million	257,311 Added 8.96%	3,128,473 $264 Million
Q2 2025 Jul 24, 2025	SELL	$72.62 - $83.22 $2.35 Million - $2.69 Million	-32,356 Reduced 1.11%	2,871,162 $231 Million
Q1 2025 May 09, 2025	SELL	$69.29 - $80.37 $34 Million - $39.4 Million	-490,433 Reduced 14.45%	2,903,518 $230 Million
Q4 2024 Feb 12, 2025	SELL	$69.7 - $81.97 $31.8 Million - $37.5 Million	-456,885 Reduced 11.86%	3,393,951 $243 Million
Q3 2024 Nov 12, 2024	SELL	$71.59 - $79.61 $39.2 Million - $43.5 Million	-546,902 Reduced 12.44%	3,850,836 $291 Million

Q2 2024 Aug 12, 2024	SELL	$72.73 - $95.69 $1.6 Million - $2.11 Million	-22,040 Reduced 0.5%	4,397,738 $326 Million
Q1 2024 May 09, 2024	BUY	$81.24 - $97.73 $2.18 Million - $2.62 Million	26,800 Added 0.61%	4,419,778 $427 Million
Q4 2023 Feb 12, 2024	BUY	$70.58 - $88.25 $14.3 Million - $17.8 Million	201,969 Added 4.82%	4,392,978 $384 Million
Q3 2023 Nov 09, 2023	BUY	$76.3 - $91.8 $19.2 Million - $23.1 Million	251,182 Added 6.38%	4,191,009 $322 Million
Q2 2023 Aug 11, 2023	BUY	$67.75 - $90.12 $12.5 Million - $16.7 Million	184,794 Added 4.92%	3,939,827 $351 Million
Q1 2023 May 12, 2023	BUY	$65.85 - $81.05 $2.95 Million - $3.63 Million	44,732 Added 1.21%	3,755,033 $259 Million
Q4 2022 Feb 10, 2023	BUY	$70.3 - $84.16 $18 Million - $21.6 Million	256,608 Added 7.43%	3,710,301 $287 Million
Q3 2022 Nov 09, 2022	BUY	$57.94 - $78.56 $14.2 Million - $19.2 Million	244,909 Added 7.63%	3,453,693 $241 Million
Q2 2022 Aug 10, 2022	BUY	$54.19 - $67.64 $24.6 Million - $30.7 Million	453,649 Added 16.47%	3,208,784 $194 Million
Q1 2022 May 13, 2022	SELL	$53.27 - $78.84 $2.14 Million - $3.17 Million	-40,211 Reduced 1.44%	2,755,135 $184 Million
Q4 2021 Feb 14, 2022	BUY	$75.23 - $99.74 $5.37 Million - $7.13 Million	71,440 Added 2.62%	2,795,346 $221 Million
Q3 2021 Nov 12, 2021	BUY	$80.97 - $90.15 $3.93 Million - $4.38 Million	48,540 Added 1.81%	2,723,906 $234 Million
Q2 2021 Aug 12, 2021	BUY	$81.08 - $93.68 $196 Million - $226 Million	2,412,720 Added 918.62%	2,675,366 $222 Million
Q1 2021 May 13, 2021	BUY	$75.85 - $93.98 $307,495 - $380,994	4,054 Added 1.57%	262,646 $216 Million
Q4 2020 Feb 09, 2021	BUY	$79.33 - $93.95 $97,099 - $114,994	1,224 Added 0.48%	258,592 $239 Million
Q3 2020 Nov 06, 2020	BUY	$68.0 - $87.78 $125,052 - $161,427	1,839 Added 0.72%	257,368 $218 Million
Q2 2020 Aug 12, 2020	BUY	$52.67 - $72.46 $240,807 - $331,287	4,572 Added 1.82%	255,529 $182 Million
Q1 2020 May 11, 2020	SELL	$52.34 - $74.01 $255,000 - $360,576	-4,872 Reduced 1.9%	250,957 $147 Million
Q4 2019 Feb 13, 2020	BUY	$54.36 - $61.74 $204,339 - $232,080	3,759 Added 1.49%	255,829 $153 Million
Q3 2019 Nov 12, 2019	SELL	$55.94 - $63.43 $282,552 - $320,384	-5,051 Reduced 1.96%	252,070 $150 Million
Q2 2019 Aug 13, 2019	SELL	$47.44 - $56.05 $91,654 - $108,288	-1,932 Reduced 0.75%	257,121 $142 Million
Q1 2019 May 14, 2019	BUY	$32.73 - $47.69 $326,350 - $475,516	9,971 Added 4.0%	259,053 $121 Million
Q4 2018 Feb 14, 2019	SELL	$32.04 - $41.44 $135,048 - $174,669	-4,215 Reduced 1.66%	249,082 $84 Million
Q3 2018 Nov 13, 2018	SELL	$40.85 - $44.67 $119,731 - $130,927	-2,931 Reduced 1.14%	253,297 $107 Million
Q2 2018 Aug 13, 2018	SELL	$35.11 - $41.72 $571,520 - $679,118	-16,278 Reduced 5.97%	256,228 $106 Million
Q1 2018 May 15, 2018	SELL	$29.68 - $37.58 $2.09 Million - $2.64 Million	-70,270 Reduced 20.5%	272,506 $98.8 Million
Q4 2017 Feb 14, 2018	SELL	$27.16 - $31.02 $226,731 - $258,954	-8,348 Reduced 2.38%	342,776 $102 Million
Q3 2017 Nov 13, 2017	BUY	$26.61 - $28.7 $9.34 Million - $10.1 Million	351,124	351,124 $94.2 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.

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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