Costar Group, Inc. (CSGP): 5 insider purchases in the last two years (1 opportunistic); 38 trades disclosed by members of Congress.
| Filed | Insider | Shares | Price | Value | Type |
|---|---|---|---|---|---|
| Mar 9, 2026 | Sams Louise S Director | 1,000 | $48.36 | $48.4K | no history |
| Mar 3, 2026 | Saint Frederick G. Officer | 20,000 | $45.33 | $906.6K | opportunistic |
| Mar 3, 2026 | Glaser Rachel C Director | 1,000 | $44.94 | $44.9K | no history |
| Mar 2, 2026 | Florance Andrew C Director, Officer | 55,720 | $44.52 | $2.5M | no history |
| Oct 28, 2024 | Florance Andrew C Director, Officer | 14,731 | $74.67 | $1.1M | no history |
Open-market purchases from SEC Form 4. "Opportunistic" = this insider trades every year but not on a fixed schedule (Cohen, Malloy & Pomorski); "routine" buys carry little information.
Free account. Know when insiders, famous funds or Congress trade it.
| Filed | Member | Type | Amount |
|---|---|---|---|
| Sep 10, 2026 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| May 8, 2026 | Gilbert Cisneros | partial sale | $1,001 - $15,000 |
| Apr 7, 2026 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Feb 13, 2026 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Jan 12, 2026 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Nov 18, 2025 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Oct 22, 2025 | Lisa McClain | sale | $1,001 - $15,000 |
| Oct 10, 2025 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Oct 10, 2025 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Sep 12, 2025 | Lisa McClain | purchase | $1,001 - $15,000 |
| Aug 14, 2025 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Aug 14, 2025 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Jul 10, 2025 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Jul 10, 2025 | Gilbert Cisneros | purchase | $1,001 - $15,000 |
| Jul 10, 2025 | Gilbert Cisneros | purchase | $15,001 - $50,000 |
| Jun 22, 2025 | Jefferson Shreve | sale | $15,001 - $50,000 |
| May 31, 2025 | Rob Bresnahan | sale | $1,001 - $15,000 |
| Mar 9, 2025 | Jefferson Shreve | purchase | $15,001 - $50,000 |
| Feb 25, 2025 | William R. Keating | purchase | $1,001 - $15,000 |
| Feb 12, 2025 | Julie Johnson | sale | $1,001 - $15,000 |
| May 19, 2023 | Daniel Goldman | purchase | $15,001 - $50,000 |
| Apr 17, 2023 | Daniel Goldman | sale | $15,001 - $50,000 |
| Mar 10, 2021 | Josh Gottheimer | sale | $1,001 - $15,000 g |
| Nov 9, 2020 | Greg Gianforte | partial sale | $1,001 - $15,000 b |
| Nov 5, 2020 | Gilbert Cisneros | partial sale | $1,001 - $15,000 g |
| Oct 19, 2020 | Greg Gianforte | partial sale | $100,001 - c |
| Oct 14, 2020 | Gilbert Cisneros | partial sale | $1,001 - $15,000 c |
| Oct 13, 2020 | Josh Gottheimer | partial sale | $1,001 - $15,000 d |
| May 12, 2020 | Greg Gianforte | partial sale | $50,001 - c |
| Apr 16, 2020 | Gilbert Cisneros | purchase | $1,001 - $15,000 f |
| Apr 16, 2020 | Gilbert Cisneros | purchase | $15,001 - f |
| Mar 10, 2020 | Gilbert Cisneros | partial sale | $1,001 - $15,000 f |
| Feb 10, 2020 | Josh Gottheimer | partial sale | $1,001 - $15,000 c |
| Dec 9, 2019 | Josh Gottheimer | partial sale | $1,001 - $15,000 b |
| Nov 15, 2019 | Gilbert Cisneros | partial sale | $1,001 - $15,000 c |
| Oct 16, 2019 | Gilbert Cisneros | partial sale | $1,001 - $15,000 g |
| Oct 16, 2019 | Gilbert Cisneros | partial sale | $1,001 - $15,000 f |
| Oct 1, 2019 | Greg Gianforte | partial sale | $50,001 - b |