As of the latest Form 4 filed Jun 26, 2026.
What Comfort Systems USA Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 74 most recent filings for FIX.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-26 | 2026-06-24 | MYERS FRANKLIN Director | SSale | −6.70K | $1,954.47 | $13.1M | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-27 | Hardy Rhoman J Director | SSale | −342.00 | $1,900.08 | $650K | No | Form 4 ↗ |
| 2026-05-22 | 2026-05-21 | MYERS FRANKLIN Director | GGift | −273.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Hardy Rhoman J Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Wallis-Lage Cindy L. Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Kapoor Gaurav Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Skidmore Constance Ellen Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | Mercado, Pablo G. Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | SANDBROOK WILLIAM J Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | MYERS FRANKLIN Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | BULLS HERMAN E Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-19 | 2026-05-18 | ANDERSON DARCY Director | AAward | +105.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-11 | GEORGE WILLIAM III CHIEF FINANCIAL OFFICER | SSale | −1.00K | $2,020.97 | $2.02M | No | Form 4 ↗ |
| 2026-05-12 | 2026-05-08 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | SSale | −4.00K | $1,948.17 | $7.79M | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-11 | Shaeff Julie CHIEF ACCOUNTING OFFICER | SSale | −1.12K | $2,000.37 | $2.25M | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-07 | MYERS FRANKLIN Director | SSale | −4.50K | $1,902.57 | $8.56M | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-07 | MYERS FRANKLIN, Director | GGift | −256.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-07 | MYERS FRANKLIN, Director | GGift | −205.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-08 | 2026-05-07 | MYERS FRANKLIN, Director | GGift | −51.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-06 | 2026-05-05 | Lane Brian E. CHIEF EXECUTIVE OFF. | SSale | −11.1K | $1,969.84 | $21.9M | No | Form 4 ↗ |
| 2026-05-01 | 2026-04-30 | Mercado, Pablo G. Director | SSale | −500.00 | $1,779.78 | $890K | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-29 | SANDBROOK WILLIAM J Director | SSale | −1.50K | $1,732.67 | $2.60M | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Eslicker Rachel R. SVP & GENERAL COUNSEL | FTax | −43.00 | $1,429.60 | $61.5K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Eslicker Rachel R., SVP & GENERAL COUNSEL | FTax | −25.00 | $1,429.60 | $35.7K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Eslicker Rachel R., SVP & GENERAL COUNSEL | FTax | −31.00 | $1,429.60 | $44.3K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Reed Terrence SVP & CHRO | FTax | −93.00 | $1,429.60 | $133K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Reed Terrence, SVP & CHRO | FTax | −82.00 | $1,429.60 | $117K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Reed Terrence, SVP & CHRO | FTax | −98.00 | $1,429.60 | $140K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Lane Brian E. CHIEF EXECUTIVE OFF. | FTax | −1.51K | $1,429.60 | $2.16M | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Lane Brian E., CHIEF EXECUTIVE OFF. | FTax | −941.00 | $1,429.60 | $1.35M | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Lane Brian E., CHIEF EXECUTIVE OFF. | FTax | −1.15K | $1,429.60 | $1.64M | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Trent T McKenna PRESIDENT/CHIEF OPERATING OFF. | FTax | −341.00 | $1,429.60 | $487K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Trent T McKenna, PRESIDENT/CHIEF OPERATING OFF. | FTax | −210.00 | $1,429.60 | $300K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Trent T McKenna, PRESIDENT/CHIEF OPERATING OFF. | FTax | −266.00 | $1,429.60 | $380K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Shaeff Julie CHIEF ACCOUNTING OFFICER | FTax | −145.00 | $1,429.60 | $207K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Shaeff Julie, CHIEF ACCOUNTING OFFICER | FTax | −87.00 | $1,429.60 | $124K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | Shaeff Julie, CHIEF ACCOUNTING OFFICER | FTax | −87.00 | $1,429.60 | $124K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | GEORGE WILLIAM III CHIEF FINANCIAL OFFICER | FTax | −500.00 | $1,429.60 | $715K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | FTax | −297.00 | $1,429.60 | $425K | No | Form 4 ↗ |
| 2026-04-03 | 2026-04-01 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | FTax | −284.00 | $1,429.60 | $406K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Eslicker Rachel R. SVP & GENERAL COUNSEL | AAward | +217.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Reed Terrence SVP & CHRO | FTax | −56.00 | $1,408.25 | $78.9K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Reed Terrence, SVP & CHRO | AAward | +188.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Reed Terrence, SVP & CHRO | AAward | +275.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Lane Brian E. CHIEF EXECUTIVE OFF. | FTax | −910.00 | $1,408.25 | $1.28M | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Lane Brian E., CHIEF EXECUTIVE OFF. | AAward | +2.31K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Lane Brian E., CHIEF EXECUTIVE OFF. | AAward | +2.88K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Trent T McKenna PRESIDENT/CHIEF OPERATING OFF. | FTax | −204.00 | $1,408.25 | $287K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Trent T McKenna, PRESIDENT/CHIEF OPERATING OFF. | AAward | +520.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Trent T McKenna, PRESIDENT/CHIEF OPERATING OFF. | AAward | +1.21K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Shaeff Julie CHIEF ACCOUNTING OFFICER | FTax | −84.00 | $1,408.25 | $118K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Shaeff Julie, CHIEF ACCOUNTING OFFICER | AAward | +220.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | Shaeff Julie, CHIEF ACCOUNTING OFFICER | AAward | +194.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | GEORGE WILLIAM III CHIEF FINANCIAL OFFICER | FTax | −300.00 | $1,408.25 | $422K | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | AAward | +764.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-25 | 2026-03-23 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | AAward | +597.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | Reed Terrence SVP & CHRO | SSale | −1.12K | $1,397.33 | $1.56M | No | Form 4 ↗ |
| 2026-03-05 | 2026-03-03 | ANDERSON DARCY Director | SSale | −4.50K | $1,369.74 | $6.16M | No | Form 4 ↗ |
| 2026-03-05 | 2026-02-24 | Reed Terrence SVP & CHRO | SSale | −671.00 | $1,457.17 | $978K | No | Form 4 ↗ |
| 2026-03-04 | 2026-03-03 | Shaeff Julie CHIEF ACCOUNTING OFFICER | SSale | −2.29K | $1,382.15 | $3.16M | No | Form 4 ↗ |
| 2026-02-27 | 2026-02-25 | MYERS FRANKLIN Director | SSale | −8.64K | $1,472.56 | $12.7M | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-25 | Lane Brian E. PRESIDENT/CHIEF EXECUTIVE OFF. | SSale | −9.37K | $1,453.12 | $13.6M | No | Form 4 ↗ |
| 2026-02-26 | 2026-02-24 | SANDBROOK WILLIAM J Director | SSale | −2.50K | $1,443.32 | $3.61M | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-24 | Skidmore Constance Ellen Director | SSale | −1.00K | $1,425.00 | $1.43M | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-23 | Mercado, Pablo G. Director | SSale | −500.00 | $1,405.00 | $703K | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-23 | GEORGE WILLIAM III CHIEF FINANCIAL OFFICER | SSale | −9.00K | $1,434.97 | $12.9M | No | Form 4 ↗ |
| 2026-02-24 | 2026-02-23 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | MExercise | +9.00K | $42.50 | $383K | No | Form 4 ↗ |
| 2025-12-05 | 2025-12-04 | Howell Laura Finley SVP & GENERAL COUNSEL | SSale | −1.00K | $996.16 | $996K | No | Form 4 ↗ |
| 2025-12-04 | 2025-12-03 | MYERS FRANKLIN Director | GGift | −270.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2025-12-03 | 2025-12-01 | GEORGE WILLIAM III CHIEF FINANCIAL OFFICER | GGift | −2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2025-12-03 | 2025-12-01 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | SSale | −4.37K | $958.88 | $4.19M | No | Form 4 ↗ |
| 2025-12-03 | 2025-12-01 | GEORGE WILLIAM III, CHIEF FINANCIAL OFFICER | FTax | −3.28K | $955.73 | $3.13M | No | Form 4 ↗ |
| 2025-11-25 | 2025-11-24 | Lane Brian E. PRESIDENT/CHIEF EXECUTIVE OFF. | SSale | −7.16K | $947.98 | $6.79M | No | Form 4 ↗ |
| 2025-11-19 | 2025-11-14 | BULLS HERMAN E Director | GGift | −800.00 | $0.00 | $0.00 | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also FIX’s full analysis or the market-wide insider trading feed. The tabs above jump to FIX’s other SEC data.
Source: SEC Form 4 filings for FIX, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.