DESMARAIS MICHAEL J (CIK 1925959) reported 7 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-17). Recent activity: Sell CSGP (2,873 shares), Buy CSGP (17,676 shares), Sell CSGP (6,353 shares), Sell CSGP (3,641 shares), Buy CSGP (9,026 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-17 | COSTAR GROUP, INC. (CSGP) | Chief Human Resources Officer | Sell | 2,873 | $125,349 |
| 2026-03-11 | COSTAR GROUP, INC. (CSGP) | Chief Human Resources Officer | Buy | 17,676 | $0 |
| 2026-03-03 | COSTAR GROUP, INC. (CSGP) | Chief Human Resources Officer | Sell | 6,353 | $283,534 |
| 2025-03-18 | COSTAR GROUP, INC. (CSGP) | Chief Human Resources Officer | Sell | 3,641 | $286,656 |
| 2025-03-07 | COSTAR GROUP, INC. (CSGP) | Chief Human Resources Officer | Buy | 9,026 | $0 |
| 2025-03-03 | COSTAR GROUP, INC. (CSGP) | Chief Human Resources Officer | Buy | 18,828 | $0 |
| 2025-03-03 | COSTAR GROUP, INC. (CSGP) | Chief Human Resources Officer | Sell | 3,893 | $296,841 |
Source: SEC Form 4 filings · as of 2026-03-17