Insider · CIK 0001527678
William J Sandbrook
Files at FIX (COMFORT SYSTEMS USA INC), KNF (Knife River Corp). First filing Aug 27, 2025, latest Sep 10, 2025.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
FIX: COMFORT SYSTEMS USA INC
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 53Moderate | COMFORT SYSTEMS USA INC | $1.1M 1,500 shares | -11% | +140% from low-3% from high | |
| 48Moderate | COMFORT SYSTEMS USA INC | $483k 700 shares | -5% | +134% from low-4% from high |
Transactions
Every row this insider has filed, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 9, 2025 | FIX COMFORT SYSTEMS USA INC | SOpen-market sale Common Stock | -600 | $708.97 | $425k | 12,566 | Sep 10, 2025 |
| Sep 9, 2025 | FIX COMFORT SYSTEMS USA INC | SOpen-market sale Common Stock | -100 | $706.00 | $71k | 12,466 | Sep 10, 2025 |
| Sep 10, 2025 | FIX COMFORT SYSTEMS USA INC | SOpen-market sale Common Stock | -800 | $733.56 | $587k | 11,666 | Sep 10, 2025 |
| Aug 25, 2025 | FIX COMFORT SYSTEMS USA INC | SOpen-market sale Common Stock | -700 | $689.58 | $483k | 13,166 | Aug 27, 2025 |
| May 22, 2025 | KNF Knife River Corp | AGrant or award Common Stock | +1,551 | $0.00 | $0 | 5,695 | May 27, 2025 |
| May 16, 2025 | FIX COMFORT SYSTEMS USA INC | AGrant or award Common Stock | +342 | $0.00 | $0 | 13,866 | May 20, 2025 |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.