CSGP Insider Trading
CoStar Group, Inc. (CSGP) operates in the Real Estate sector, specifically the Real Estate - Services industry, with a market capitalization near $13.06B, listed on NASDAQ, employing roughly 8,441 people, carrying a beta of 0.75 to the broader market. CoStar Group, Inc. Led by Andrew C. Florance, public since 1998-07-01.
In the last 12 months, CoStar Group, Inc. insiders made 6 buy transactions and 6 sale transactions.
| Date | Name | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| May 4, 2026 | FLORANCE ANDREW C | P-Purchase | 3,100 | $35.82 | $111.0K |
| May 4, 2026 | FLORANCE ANDREW C | P-Purchase | 68,330 | $35.17 | $2.4M |
| Apr 2, 2026 | McCarthy Christine M | 0 | $0.00 | $0 | |
| Mar 17, 2026 | Boxer Gene | F-InKind | 482 | $43.63 | $21.0K |
| Mar 17, 2026 | Ruggles Lisa | F-InKind | 2,977 | $43.63 | $129.9K |
| Mar 17, 2026 | Boxer Gene | F-InKind | 428 | $43.63 | $18.7K |
| Mar 17, 2026 | SIMURO FRANK | F-InKind | 11,107 | $43.63 | $484.6K |
| Mar 17, 2026 | Banerjee Nana | 0 | $0.00 | $0 | |
| Mar 17, 2026 | DESMARAIS MICHAEL J | F-InKind | 2,873 | $43.63 | $125.3K |
| Mar 17, 2026 | Cann Cynthia Cammett | F-InKind | 1,194 | $43.63 | $52.1K |
How to Read CSGP Insider Activity
Net insider activity is balanced over the trailing twelve months: 6 buys against 6 sales. Balanced activity typically reflects routine compensation-related vesting and tax-driven liquidity rather than directional information signals. The transaction table above includes the filer's reporting name, transaction type, share count, per-share price, and total dollar value where computable. For options traders, insider activity is one input to event-driven sizing alongside earnings calendar, analyst-rating cluster moves, and the implied-vol surface. Form 4 filings (the dominant Section 16 reporting form) must be submitted within two business days of the transaction; clusters of buys across multiple insiders within a short window are the strongest informational pattern. SEC EDGAR carries the underlying source filings for verification and additional historical depth.
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Frequently asked CSGP insider trading questions
- How active are CSGP insiders right now?
- Over the trailing twelve months, CoStar Group, Inc. (CSGP) insiders made 6 buy transactions and 6 sale transactions. Net insider activity over the trailing twelve months is balanced (6 buys, 6 sales). The transaction list above shows the most recent filings; each entry includes the insider's name, transaction type, share count, and per-share price.
- What counts as an insider transaction?
- Section 16 of the Securities Exchange Act requires officers, directors, and 10% beneficial-owner shareholders to disclose changes in their holdings via Form 3 (initial statement), Form 4 (subsequent transactions, filed within two business days), and Form 5 (annual catch-up). Insider transactions cover open-market purchases and sales, exercise of stock options, gifts, and grants. The "transaction type" field on each row distinguishes these subcategories.
- Are CSGP insider buys a bullish signal?
- Insider open-market purchases (Type P) carry more informational weight than insider sales: an insider must commit personal capital, and the SEC scrutinizes purchases under Rule 10b5-1 for material non-public information. Sales, by contrast, are often driven by liquidity, tax planning, or pre-scheduled 10b5-1 trading plans rather than negative information. Cluster buying (multiple insiders buying within a short window) is a stronger signal than isolated buys.
- How do CSGP insider transactions affect options pricing?
- Insider transaction data does not directly drive implied volatility, but Form 4 disclosures can move single-name IV if the size or timing is unusual (e.g. a large CEO buy ahead of an earnings window). Options markets price the marginal informational content; routine transactions under pre-scheduled plans are typically ignored. For event-driven options sizing, pair the insider transaction history with the upcoming earnings calendar.