Saint Frederick G., President of Marketplaces at CoStar Group ($CSGP), bought shares once on the open market in the last year, totaling about $907,000, with the latest purchase on March 2, 2026. This ranks him 609th among nearly 5,000 insiders, below the average of 1.5 million per buyer and 3 transactions. He sold shares three times for 6.6 million dollars, most recently on August 28, 2025, placing 1,566th out of nearly 12,000 sellers versus their 8.6 million average and 6 deals.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 1, 2026 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 11096 | $44.63 | 259,851.0000 | 424,900,000 | 4.10% | 0.00% |
| Feb. 27, 2026 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | A | Restricted Stock Units | 39652 | $0.00 | 39,652.0000 | 424,900,000 | 9999.99% | 0.01% |
| March 2, 2026 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | P | Common Stock, par value $0.01 per share | 20000 | $45.33 | 279,851.0000 | 424,900,000 | 7.70% | 0.00% |
| Feb. 19, 2026 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 2149 | $49.07 | 270,947.0000 | 424,900,000 | 0.79% | 0.00% |
| Feb. 19, 2026 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | D | Common Stock, par value $0.01 per share | 17583 | $0.00 | 273,096.0000 | 424,900,000 | 6.05% | 0.00% |
| Feb. 15, 2026 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 2424 | $44.99 | 290,679.0000 | 424,900,000 | 0.83% | 0.00% |
| Aug. 28, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | S | Common Stock, par value $0.01 per share | 25000 | $90.33 | 293,103.0000 | 424,100,000 | 7.86% | 0.01% |
| Aug. 1, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 1436 | $95.19 | 318,103.0000 | 424,100,000 | 0.45% | 0.00% |
| July 28, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | S | Common Stock, par value $0.01 per share | 25000 | $93.23 | 319,539.0000 | 424,100,000 | 7.26% | 0.01% |
| June 11, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | S | Common Stock, par value $0.01 per share | 25000 | $81.10 | 344,539.0000 | 423,400,000 | 6.77% | 0.01% |
| March 1, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 8252 | $76.25 | 369,539.0000 | 409,500,000 | 2.18% | 0.00% |
| Feb. 20, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | A | Option to Acquire Common Stock | 24600 | $0.00 | 24,600.0000 | 409,500,000 | 9999.99% | 0.01% |
| Feb. 13, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | D | Common Stock, par value $0.01 per share | 6452 | $0.00 | 286,793.0000 | 409,500,000 | 2.20% | 0.00% |
| Feb. 13, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 6602 | $73.27 | 280,191.0000 | 409,500,000 | 2.30% | 0.00% |
| Feb. 20, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | A | Common Stock, par value $0.01 per share | 97600 | $0.00 | 377,791.0000 | 409,500,000 | 34.83% | 0.02% |
| Feb. 15, 2025 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 2349 | $74.06 | 293,245.0000 | 409,500,000 | 0.79% | 0.00% |
| July 26, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | A | Common Stock, par value $0.01 per share | 12738 | $0.00 | 295,594.0000 | 409,300,000 | 4.50% | 0.00% |
| May 16, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | S | Common Stock, par value $0.01 per share | 2500 | $88.43 | 282,856.0000 | 409,200,000 | 0.88% | 0.00% |
| March 1, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 6351 | $87.03 | 285,356.0000 | 408,100,000 | 2.18% | 0.00% |
| Feb. 22, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 4881 | $83.98 | 222,547.0000 | 408,100,000 | 2.15% | 0.00% |
| Feb. 22, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | D | Common Stock, par value $0.01 per share | 8000 | $0.00 | 227,428.0000 | 408,100,000 | 3.40% | 0.00% |
| Feb. 22, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | A | Option to Acquire Common Stock | 17000 | $0.00 | 17,000.0000 | 408,100,000 | 9999.99% | 0.00% |
| Feb. 22, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | A | Common Stock, par value $0.01 per share | 69160 | $0.00 | 291,707.0000 | 408,100,000 | 31.08% | 0.02% |
| Feb. 15, 2024 | COSTAR GROUP, INC. | $CSGP | SAINT FREDERICK G. | President, Marketplaces | F | Common Stock, par value $0.01 per share | 2349 | $82.32 | 235,428.0000 | 408,100,000 | 0.99% | 0.00% |