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Comfort Systems USA stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+6.6% to $1,017.50
Comfort Systems USA (FIX) stock rose 7% over the last 252 sessions, to $1,017.50. On the way it reported 0 quarters, its insiders filed 4 open-market trades and 4 Form 144 notices of planned sales, and the company filed 3 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Oct 22, 2026 | 8-K | Directors and officers: departures, appointments, pay | −9.7% (−9.2% vs SPY) | +3.6% (+2.9% vs SPY) | — |
| Aug 26, 2026 | Form 144 | Form 144: Brian E Lane plans to sell $25.8M | +3.4% (+3.4% vs SPY) | −0.5% (+0.1% vs SPY) | +5.1% (+4.7% vs SPY) |
| Aug 26, 2026 | Insider sale | Lane Brian E. sold $25.8M | +3.4% (+3.4% vs SPY) | −0.5% (+0.1% vs SPY) | +5.1% (+4.7% vs SPY) |
| Aug 17, 2026 | Form 144 | Form 144: William III George plans to sell $4.7M | +5.9% (+6.3% vs SPY) | −6.9% (−5.5% vs SPY) | −11.8% (−9.3% vs SPY) |
| Aug 17, 2026 | Insider sale | George William III sold $4.7M | +5.9% (+6.3% vs SPY) | −6.9% (−5.5% vs SPY) | −11.8% (−9.3% vs SPY) |
| Aug 11, 2026 | Form 144 | Form 144: Franklin Myers plans to sell $6.7M | +0.8% (+1.1% vs SPY) | +11.7% (+11.7% vs SPY) | −3.5% (−2.2% vs SPY) |
| Aug 11, 2026 | Insider sale | Myers Franklin sold $6.8M | +0.8% (+1.1% vs SPY) | +11.7% (+11.7% vs SPY) | −3.5% (−2.2% vs SPY) |
| Aug 10, 2026 | Form 144 | Form 144: Franklin Myers plans to sell $5.9M | −1.2% (−1.1% vs SPY) | +4.6% (+4.2% vs SPY) | −2.7% (−1.7% vs SPY) |
| Aug 10, 2026 | Insider sale | Myers Franklin sold $5.9M | −1.2% (−1.1% vs SPY) | +4.6% (+4.2% vs SPY) | −2.7% (−1.7% vs SPY) |
| Jun 22, 2026 | 8-K | Directors and officers: departures, appointments, pay | −8.0% (−6.5% vs SPY) | −5.9% (−5.4% vs SPY) | −14.3% (−14.7% vs SPY) |
| Dec 19, 2025 | 8-K | Directors and officers: departures, appointments, pay | +1.1% (+0.4% vs SPY) | +1.1% (0.0% vs SPY) | +18.5% (+17.3% vs SPY) |
Insiders’ record here
In the year on the chart, Comfort Systems USA's insiders reported 0 open-market buys ($0) and 4 sales ($43.2M).
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Comfort Systems USA: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.