Over the past 12 months, 6 insiders at COSTAR GROUP, INC. filed 9 open-market SEC Form 4 transactions on CSGP: 6 purchases worth $6.0M and 3 sales worth $2.5M. Insiders have been net buyers over this period. The most recent filing was on May 1, 26.
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| May 1, 26 | Andrew C FlorancePresident and CEO | BUY | 68.3K | $35.82 | $2.4M |
| Mar 6, 26 | Louise S SamsDirector | BUY | 1.0K | $48.36 | $48K |
| Mar 2, 26 | Rachel C GlaserDirector | BUY | 1.0K | $44.94 | $45K |
| Mar 2, 26 | Frederick G. SaintPresident, Marketplaces | BUY | 20.0K | $45.33 | $907K |
| Feb 27, 26 | Andrew C FlorancePresident and CEO | BUY | 55.7K | $44.52 | $2.5M |
| Nov 13, 25 | Cynthia Cammett CannChief Accounting Officer | SELL | 1.8K | $68.79 | $127K |
| Nov 13, 25 | John W HillDirector | SELL | 2.3K | $68.68 | $155K |
| Aug 28, 25 | Frederick G. SaintPresident, Marketplaces | SELL | 25.0K | $90.33 | $2.3M |
| Jul 28, 25 | Cynthia Cammett CannChief Accounting Officer | SELL | 2.0K | $92.85 | $189K |
| Jul 28, 25 | Frederick G. SaintPresident, Marketplaces | SELL | 25.0K | $93.23 | $2.3M |
| Jun 11, 25 | Frederick G. SaintPresident, Marketplaces | SELL | 25.0K | $81.10 | $2.0M |
| Mar 10, 25 | Cynthia Cammett CannChief Accounting Officer | SELL | 1.7K | $79.90 | $140K |
| Dec 10, 24 | John W HillDirector | SELL | 2.7K | $76.76 | $210K |
| Nov 27, 24 | Christopher J NassettaDirector | SELL | 1.7K | $80.39 | $135K |
| Nov 26, 24 | Michael J DesmaraisChief Human Resources Officer | SELL | 5.5K | $79.88 | $439K |
| Nov 11, 24 | Cynthia Cammett CannChief Accounting Officer | SELL | 1.3K | $76.85 | $101K |
| Oct 25, 24 | Andrew C FlorancePresident and CEO | BUY | 14.7K | $74.67 | $1.1M |
| Oct 25, 24 | Michael R KleinDirector | SELL | 71.6K | $74.69 | $5.4M |
| Jul 31, 24 | Cynthia Cammett CannChief Accounting Officer | SELL | 1.2K | $78.20 | $94K |
| Jul 30, 24 | John W HillDirector | SELL | 1.3K | $78.16 | $104K |
| May 16, 24 | Frederick G. SaintPresident, Marketplaces | SELL | 2.5K | $88.43 | $221K |
| May 9, 24 | Lisa RugglesSenior VP, Global Operations | SELL | 20.0K | $91.15 | $1.8M |
| Apr 26, 24 | Michael J DesmaraisChief Human Resources Officer | SELL | 3.8K | $92.67 | $352K |
| Apr 26, 24 | Scott T WheelerChief Financial Officer | SELL | 122.7K | $92.61 | $11.4M |
| Nov 28, 23 | John W HillDirector | SELL | 3.0K | $84.07 | $254K |
| Nov 8, 23 | Christopher J NassettaDirector | SELL | 1.5K | $77.86 | $117K |
| Jun 30, 23 | Lisa RugglesSenior VP, Global Research | SELL | 30.5K | $91.42 | $2.8M |
| Jun 28, 23 | Scott T WheelerChief Financial Officer | SELL | 21.5K | $89.30 | $1.9M |
| Jun 27, 23 | Frank SimuroChief Technology Officer | SELL | 92.3K | $89.65 | $8.3M |
| Jun 26, 23 | John W HillDirector | SELL | 1.5K | $86.57 | $130K |
| Jun 12, 23 | Scott T WheelerChief Financial Officer | SELL | 24.7K | $80.68 | $2.0M |
| Jun 7, 23 | Frederick G. SaintPresident, Marketplaces | SELL | 30.0K | $80.24 | $2.4M |
| Apr 28, 23 | Andrew C FlorancePresident and CEO | SELL | 360.5K | $76.77 | $27.7M |
| Mar 31, 23 | John W HillDirector | SELL | 2.3K | $68.50 | $158K |
| Mar 8, 23 | Michael J DesmaraisChief Human Resources Officer | SELL | 5.6K | $70.36 | $394K |
| Mar 1, 23 | Frank SimuroChief Technology Officer | SELL | 35.2K | $70.09 | $2.5M |
| Nov 3, 22 | John W HillDirector | SELL | 3.6K | $78.92 | $288K |
| Oct 28, 22 | Michael J DesmaraisChief Human Resources Officer | SELL | 1.3K | $82.81 | $107K |
| Aug 10, 22 | John W HillDirector | SELL | 1.4K | $74.49 | $104K |
| Aug 5, 22 | Michael R KleinDirector | SELL | 150.0K | $72.42 | $10.9M |
| Aug 3, 22 | Michael J DesmaraisChief Human Resources Officer | SELL | 2.0K | $72.51 | $145K |
| May 24, 22 | John W HillDirector | SELL | 1.8K | $57.07 | $100K |
| May 2, 22 | Michael J DesmaraisChief Human Resources Officer | SELL | 1.0K | $63.14 | $63K |
| Mar 2, 22 | Lisa RugglesSenior VP, Global Research | SELL | 21.6K | $59.88 | $1.3M |
| Nov 11, 21 | Scott T WheelerChief Financial Officer | SELL | 85 | $81.72 | $7K |
| Nov 10, 21 | Christopher J NassettaDirector | SELL | 2.1K | $83.21 | $176K |
| Nov 5, 21 | Laura Cox KaplanDirector | SELL | 4.0K | $83.29 | $336K |
| Oct 29, 21 | John W HillDirector | SELL | 9.2K | $86.97 | $803K |
| Aug 9, 21 | John W HillDirector | SELL | 6.2K | $85.77 | $528K |
Over the past 12 months, insiders at COSTAR GROUP, INC. filed 6 open-market purchases worth $6.0M and 3 sales worth $2.5M on CSGP, which makes them net buyers over the period. The most recent Form 4 was filed on May 1, 26.
The largest recent open-market CSGP insider purchase in our data was $2.5M by Andrew C Florance, President and CEO, filed on Feb 27, 26.
6 different insiders at COSTAR GROUP, INC. filed open-market SEC Form 4 transactions on CSGP over the last 12 months.
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