CoStar

CSGP13F as of Jun 30, 2026 · next update ~Nov 14

Who's buying CSGP

Top funds mostly trimmed CoStar in Q2 (Apr⁠–⁠Jun)

Buying:

FundsInsiders3Congress1

Top funds
2 of 4 bought more, 4 sold some. Largest: Akre Capital Management, $331.3M (6% of its portfolio).
Insiders
3 insiders bought, 4 sales in 12 months.
Congress
1 member bought (3 trades), 0 sales in 12 months.

4 funds$591.7M held2.4% avg. weightQ2: 2 bought / 4 sold

13F reports are a snapshot as of Jun 30, 2026; funds may have traded since. Insiders often sell for personal reasons (taxes, diversification, planned sales).

Share price · market data, not from 13F reports

Q2 2026

Insider trades (Form 4)

Last 2 years · 18 filings

Net buying$23.01M

Date	Insider	Type	Shares	Price	Value
Aug 7, 2026	Cynthia Cammett Cann CAO	Sold	4,788	$30.78	$147K
Aug 5, 2026	John W Hill Director	Sold	3,500	$30.21	$106K
Aug 4, 2026	Andrew C Florance CEO	Bought	83,300	$29.89	$2.49M
May 1, 2026	Andrew C Florance President & CEO	Bought	71,430	$35.20	$2.51M
Mar 6, 2026	Louise S Sams Director	Bought	1,000	$48.36	$48K
Mar 2, 2026	Frederick G. Saint President	Bought	20,000	$45.33	$907K
Feb 27, 2026	Andrew C Florance President & CEO	Bought	55,720	$44.52	$2.48M
Nov 13, 2025	John W Hill Director	Sold	2,250	$68.68	$155K
Nov 13, 2025	Cynthia Cammett Cann CAO	Sold	1,841	$68.79	$127K
Aug 28, 2025	Frederick G. Saint President	Sold	25,000	$90.33	$2.26M
Jul 28, 2025	Frederick G. Saint President	Sold	25,000	$93.23	$2.33M
Jul 28, 2025	Cynthia Cammett Cann CAO	Sold	2,033	$92.85	$189K
Jun 11, 2025	Frederick G. Saint President	Sold	25,000	$81.10	$2.03M
Dec 10, 2024	John W Hill Director	Sold	2,735	$76.76	$210K
Nov 27, 2024	Christopher J Nassetta Director	Sold	1,681	$80.39	$135K
Nov 26, 2024	Michael J Desmarais CHRO	Sold	5,500	$79.88	$439K
Oct 25, 2024	Michael R Klein Director	Sold	71,633	$74.69	$5.35M
Oct 25, 2024	Andrew C Florance President & CEO	Bought	14,731	$74.67	$1.10M