DESMARAIS MICHAEL J has filed 14 insider transactions across 1 company since February 2024.
Most recent transaction: a tax payment of 2873 shares of COSTAR GROUP, INC. ($CSGP) on March 15, 2026.
Activity breakdown: 0 open-market purchases and 2 sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | F | Common Stock, par value $0.01 per share | 2873 | $43.63 | 87,725.0000 | 424,900,000 | 3.17% | 0.00% |
| March 10, 2026 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | A | Common Stock, par value $0.01 per share | 17676 | $0.00 | 90,598.0000 | 424,900,000 | 24.24% | 0.00% |
| Feb. 27, 2026 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | A | Restricted Stock Units | 17926 | $0.00 | 17,926.0000 | 424,900,000 | 9999.99% | 0.00% |
| March 1, 2026 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | F | Common Stock, par value $0.01 per share | 6353 | $44.63 | 72,922.0000 | 424,900,000 | 8.01% | 0.00% |
| March 15, 2025 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | F | Common Stock, par value $0.01 per share | 3641 | $78.73 | 79,118.0000 | 409,500,000 | 4.40% | 0.00% |
| March 5, 2025 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | A | Common Stock, par value $0.01 per share | 9026 | $0.00 | 82,759.0000 | 409,500,000 | 12.24% | 0.00% |
| Feb. 27, 2025 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | A | Common Stock, par value $0.01 per share | 18828 | $0.00 | 77,626.0000 | 409,500,000 | 32.02% | 0.00% |
| March 1, 2025 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | F | Common Stock, par value $0.01 per share | 3893 | $76.25 | 73,733.0000 | 409,500,000 | 5.02% | 0.00% |
| Nov. 26, 2024 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | S | Common Stock, par value $0.01 per share | 5500 | $79.88 | 58,798.0000 | 409,500,000 | 8.55% | 0.00% |
| April 26, 2024 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | S | Common Stock, par value $0.01 per share | 3800 | $92.67 | 64,087.0000 | 409,200,000 | 5.60% | 0.00% |
| March 15, 2024 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | F | Common Stock, par value $0.01 per share | 2267 | $87.87 | 67,887.0000 | 408,100,000 | 3.23% | 0.00% |
| March 1, 2024 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | F | Common Stock, par value $0.01 per share | 1829 | $87.03 | 70,154.0000 | 408,100,000 | 2.54% | 0.00% |
| March 1, 2024 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | A | Common Stock, par value $0.01 per share | 6924 | $0.00 | 71,983.0000 | 408,100,000 | 10.64% | 0.00% |
| Feb. 22, 2024 | COSTAR GROUP, INC. | $CSGP | DESMARAIS MICHAEL J | Chief Human Resources Officer | A | Common Stock, par value $0.01 per share | 16976 | $0.00 | 65,059.0000 | 408,100,000 | 35.31% | 0.00% |