Andrew C Florance insider trades: Costar Group (CSGP) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Andrew reports to the SEC
Open-market buys and sales
33 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 4, 2026 | CSGP | ↑ Buy | 83,300 | $29.89 | $2.5M | Direct | Aug 5, 2026 (1d) |
| May 1, 2026 | CSGP | ↑ Buy | 71,430 | $35.20 | $2.5M | Direct | May 4, 2026 (3d) |
| Feb 27, 2026 | CSGP | ↑ Buy | 55,720 | $44.52 | $2.5M | Direct | Mar 2, 2026 (3d) |
| Oct 25, 2024 | CSGP | ↑ Buy | 14,731 | $74.67 | $1.1M | Direct | Oct 28, 2024 (3d) |
| Apr 28, 2023 | CSGP | ↓ Sell | 360,530 | $76.77 | $27.7M | Direct | May 2, 2023 (4d) |
| Mar 10, 2021 | CSGP | ↓ Sell | 19,570 | $818.37 | $16.0M | Direct | Mar 11, 2021 (1d) |
| Aug 27, 2020 | CSGP | ↓ Sell | 31,168 | $849.91 | $26.5M | Direct | Aug 28, 2020 (1d) |
| Mar 2, 2020 | CSGP | ↓ Sell | 33,600 | $663.90 | $22.3M | Direct | Mar 3, 2020 (1d) |
| Jul 26, 2019 | CSGP | ↓ Sell | 24,210 | $628.64 | $15.2M | Direct | Jul 30, 2019 (4d) |
| Mar 4, 2019 | CSGP | ↓ Sell | 55,322 | $473.38 | $26.2M | Direct | Mar 4, 2019 (0d) |
| Apr 30, 2018 | CSGP | ↓ Sell | 24,821 | $371.03 | $9.2M | Direct | Apr 30, 2018 (0d) |
| Feb 27, 2018 | CSGP | ↓ Sell | 80,055 | $347.10 | $27.8M | Direct | Mar 1, 2018 (2d) |
| May 3, 2017 | CSGP | ↓ Sell | 43,536 | $244.46 | $10.6M | Direct | May 3, 2017 (0d) |
| Mar 2, 2017 | CSGP | ↓ Sell | 26,271 | $205.31 | $5.4M | Direct | Mar 2, 2017 (0d) |
| Nov 11, 2015 | CSGP | ↓ Sell | 17,612 | $205.10 | $3.6M | Direct | Nov 12, 2015 (1d) |
| Mar 2, 2015 | CSGP | ↓ Sell | 33,187 | $197.90 | $6.6M | Direct | Mar 3, 2015 (1d) |
| Mar 6, 2014 | CSGP | ↓ Sell | 50,000 | $210.04 | $10.5M | Direct | Mar 10, 2014 (4d) |
| Oct 28, 2013 | CSGP | ↓ Sell | 54,400 | $179.08 | $9.7M | Direct | Oct 30, 2013 (2d) |
| Jul 30, 2013 | CSGP | ↓ Sell | 72,128 | $156.42 | $11.3M | Direct | Jul 31, 2013 (1d) |
| May 20, 2013 | WD | ↑ Buy | 12,500 | $19.00 | $237K | Direct | May 22, 2013 (2d) |
| Mar 15, 2013 | CSGP | ↓ Sell | 56,253 | $99.89 | $5.6M | Direct | Mar 18, 2013 (3d) |
| Mar 4, 2013 | CSGP | ↓ Sell | 32,330 | $102.85 | $3.3M | Direct | Mar 6, 2013 (2d) |
| Aug 1, 2012 | CSGP | ↓ Sell | 56,448 | $80.10 | $4.5M | Direct | Aug 2, 2012 (1d) |
| May 17, 2012 | CSGP | ↓ Sell | 27,745 | $70.08 | $1.9M | Direct | May 21, 2012 (4d) |
| Nov 4, 2011 | CSGP | ↓ Sell | 20,000 | $62.93 | $1.3M | Direct | Nov 7, 2011 (3d) |
| Nov 1, 2011 | CSGP | ↓ Sell | 45,074 | $59.33 | $2.7M | Direct | Nov 3, 2011 (2d) |
| Aug 9, 2010 | CSGP | ↓ Sell | 9,883 | $44.66 | $441K | Direct | Aug 11, 2010 (2d) |
| Aug 5, 2010 | CSGP | ↓ Sell | 12,580 | $44.27 | $557K | Direct | Aug 6, 2010 (1d) |
| Oct 29, 2009 | CSGP | ↓ Sell | 46,540 | $40.46 | $1.9M | Direct | Oct 29, 2009 (0d) |
| May 7, 2008 | CSGP | ↓ Sell | 25,447 | $52.21 | $1.3M | Direct | May 7, 2008 (0d) |
| Oct 30, 2007 | CSGP | ↓ Sell | 151,213 | $57.18 | $8.6M | Direct | Oct 31, 2007 (1d) |
| Feb 28, 2007 | CSGP | ↓ Sell | 31,667 | $48.09 | $1.5M | Direct | Mar 2, 2007 (2d) |
| May 2, 2006 | CSGP | ↓ Sell | 33,333 | $56.34 | $1.9M | Direct | May 4, 2006 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other CSGP insiders
Open-market trades in the last 12 months
About Andrew C Florance's insider trades
Andrew C Florance is Founder and CEO at Costar Group (CSGP). Since May 2, 2006, Andrew has reported 5 open-market purchases worth $8.8M and 28 sales worth $264.2M on SEC Form 4. In the last 12 months: 3 buys ($7.5M).
Their filings also include shares withheld for taxes (66 filings), grants and awards (33 filings), option exercises (21 filings), gifts (9 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CSGP insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.