William J Sandbrook insider trades: Comfort Systems USA (FIX) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where William reports to the SEC
Open-market buys and sales
47 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Apr 29, 2026 | FIX | ↓ Sell | 1,500 | $1732.67 | $2.6M | Direct | Apr 30, 2026 (1d) |
| Feb 24, 2026 | FIX | ↓ Sell | 2,500 | $1443.32 | $3.6M | Direct | Feb 26, 2026 (2d) |
| Sep 10, 2025 | FIX | ↓ Sell | 1,500 | $721.89 | $1.1M | Direct | Sep 10, 2025 (0d) |
| Aug 25, 2025 | FIX | ↓ Sell | 700 | $689.58 | $483K | Direct | Aug 27, 2025 (2d) |
| Nov 9, 2023 | FIX | ↓ Sell | 5,000 | $185.19 | $926K | Direct | Nov 13, 2023 (4d) |
| Sep 12, 2023 | FIX | ↓ Sell | 7,500 | $187.52 | $1.4M | Direct | Sep 14, 2023 (2d) |
| Nov 24, 2020 | USCR | ↓ Sell | 10,000 | $38.15 | $382K | Direct | Nov 27, 2020 (3d) |
| Feb 27, 2020 | USCR | ↑ Buy | 15,000 | $27.96 | $419K | Direct | Feb 27, 2020 (0d) |
| Dec 13, 2019 | USCR | ↑ Buy | 10,500 | $39.44 | $414K | Direct | Dec 17, 2019 (4d) |
| Jul 26, 2018 | USCR | ↓ Sell | 9,000 | $51.45 | $463K | Direct | Jul 30, 2018 (4d) |
| Jun 28, 2018 | USCR | ↓ Sell | 9,000 | $50.39 | $453K | Direct | Jul 2, 2018 (4d) |
| May 29, 2018 | FIX | ↑ Buy | 10,000 | $46.19 | $462K | Direct | May 29, 2018 (0d) |
| May 24, 2018 | USCR | ↓ Sell | 9,000 | $57.92 | $521K | Direct | May 29, 2018 (5d) |
| Apr 26, 2018 | USCR | ↓ Sell | 9,000 | $58.72 | $528K | Direct | Apr 30, 2018 (4d) |
| Mar 22, 2018 | USCR | ↓ Sell | 9,000 | $60.76 | $547K | Direct | Mar 26, 2018 (4d) |
| Feb 22, 2018 | USCR | ↓ Sell | 9,000 | $75.52 | $680K | Direct | Feb 26, 2018 (4d) |
| Jan 25, 2018 | USCR | ↓ Sell | 9,000 | $82.38 | $741K | Direct | Jan 29, 2018 (4d) |
| Dec 28, 2017 | USCR | ↓ Sell | 9,000 | $82.91 | $746K | Direct | Jan 2, 2018 (5d) |
| Aug 23, 2017 | USCR | ↓ Sell | 6,500 | $75.80 | $493K | Direct | Aug 25, 2017 (2d) |
| Jul 26, 2017 | USCR | ↓ Sell | 6,500 | $76.27 | $496K | Direct | Jul 28, 2017 (2d) |
| Jun 28, 2017 | USCR | ↓ Sell | 6,500 | $78.91 | $513K | Direct | Jun 29, 2017 (1d) |
| May 24, 2017 | USCR | ↓ Sell | 6,500 | $68.08 | $443K | Direct | May 25, 2017 (1d) |
| Apr 26, 2017 | USCR | ↓ Sell | 6,500 | $63.21 | $411K | Direct | Apr 27, 2017 (1d) |
| Mar 22, 2017 | USCR | ↓ Sell | 6,500 | $65.97 | $429K | Direct | Mar 23, 2017 (1d) |
| Feb 22, 2017 | USCR | ↓ Sell | 6,500 | $62.44 | $406K | Direct | Feb 24, 2017 (2d) |
| Jan 25, 2017 | USCR | ↓ Sell | 6,500 | $68.44 | $445K | Direct | Jan 25, 2017 (0d) |
| Dec 28, 2016 | USCR | ↓ Sell | 6,500 | $66.64 | $433K | Direct | Dec 30, 2016 (2d) |
| Nov 23, 2016 | USCR | ↓ Sell | 6,500 | $59.64 | $388K | Direct | Nov 28, 2016 (5d) |
| Oct 26, 2016 | USCR | ↓ Sell | 6,500 | $49.05 | $319K | Direct | Oct 28, 2016 (2d) |
| Sep 21, 2016 | USCR | ↓ Sell | 6,500 | $46.99 | $305K | Direct | Sep 23, 2016 (2d) |
| Aug 24, 2016 | USCR | ↓ Sell | 6,500 | $56.51 | $367K | Direct | Aug 24, 2016 (0d) |
| Jul 27, 2016 | USCR | ↓ Sell | 6,500 | $66.07 | $429K | Direct | Jul 29, 2016 (2d) |
| Jun 22, 2016 | USCR | ↓ Sell | 6,500 | $58.63 | $381K | Direct | Jun 24, 2016 (2d) |
| May 25, 2016 | USCR | ↓ Sell | 6,500 | $64.19 | $417K | Direct | May 26, 2016 (1d) |
| Apr 27, 2016 | USCR | ↓ Sell | 6,500 | $66.63 | $433K | Direct | Apr 29, 2016 (2d) |
| Mar 23, 2016 | USCR | ↓ Sell | 6,500 | $61.83 | $402K | Direct | Mar 28, 2016 (5d) |
| Feb 24, 2016 | USCR | ↓ Sell | 6,500 | $52.78 | $343K | Direct | Feb 26, 2016 (2d) |
| Jan 27, 2016 | USCR | ↓ Sell | 6,500 | $43.68 | $284K | Direct | Jan 29, 2016 (2d) |
| Dec 23, 2015 | USCR | ↓ Sell | 6,500 | $54.91 | $357K | Direct | Dec 28, 2015 (5d) |
| Nov 25, 2015 | USCR | ↓ Sell | 6,500 | $60.00 | $390K | Direct | Nov 30, 2015 (5d) |
| Oct 28, 2015 | USCR | ↓ Sell | 6,500 | $54.90 | $357K | Direct | Oct 30, 2015 (2d) |
| Sep 30, 2015 | USCR | ↓ Sell | 6,500 | $46.73 | $304K | Direct | Oct 1, 2015 (1d) |
| Mar 19, 2014 | USCR | ↑ Buy | 1,000 | $23.50 | $24K | Direct | Mar 19, 2014 (0d) |
| Sep 16, 2011 | USCR | ↑ Buy | 800 | $4.75 | $4K | Direct | Sep 19, 2011 (3d) |
| Sep 12, 2011 | USCR | ↑ Buy | 200 | $4.75 | $950 | Direct | Sep 14, 2011 (2d) |
| Sep 2, 2011 | USCR | ↑ Buy | 1,000 | $5.40 | $5K | Direct | Sep 6, 2011 (4d) |
| Aug 31, 2011 | USCR | ↑ Buy | 2,000 | $5.70 | $11K | Direct | Aug 31, 2011 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other FIX insiders
Open-market trades in the last 12 months
About William J Sandbrook's insider trades
William J Sandbrook is an insider at Comfort Systems USA (FIX). Since Aug 31, 2011, William has reported 8 open-market purchases worth $1.3M and 39 sales worth $24.7M on SEC Form 4. In the last 12 months: 2 sales ($6.2M).
Their filings also include shares withheld for taxes (24 filings), grants and awards (23 filings), gifts (8 filings), option exercises (6 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 FIX insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.