About 24% overall. As a group they still hold 77% of their starting shares.
No officer or director trades were reported for the past 30 days. The most recent before that:
| Who | Shares | Price | % of total stake | Total stake after | Trade date | Filed |
|---|---|---|---|---|---|---|
| Brian Lane Chief Executive Off., Director | 16,024 | $1608.21 | 9.9% | 145K | Aug 26, 2026 | Aug 27, 2026 |
"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.
Percentages cover all 18 officers and directors. Disclosed company stock is not an insider's whole wealth.
Officers and directors, past 12 months. Each bar is the insider's vested stake at the start of the period (Oct 8, 2025). The gold part is what they sold.
Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.
Yes. Brian Lane sold 44K shares ($68.1M, 23% of starting holdings) in the past 12 months, none of it under a trading plan disclosed in the filings.
Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.
No. Officers and directors reported no purchases in the past 12 months.
About 24% overall. As a group they still hold 77% of their starting shares. That covers the 12 months to Oct 8, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.
| Who sold | Amount | % of holdings | Trading plan |
|---|---|---|---|
| Brian Lane Chief Executive Off., Director | $68.1M 44K shares | 23% | No plan disclosed |
| Franklin Myers Director | $52.1M 32K shares | 32% | No plan disclosed |
| William George III Chief Financial Officer | $31.7M 21K shares | 44% | No plan disclosed |
| Darcy Anderson Director | $10.0M 8.5K shares | 32% | No plan disclosed |
| William Sandbrook Director | $6.2M 4K shares | 34% | No plan disclosed |
| Julie Shaeff Chief Accounting Officer | $5.4M 3.4K shares | 21% | No plan disclosed |
| Pablo Mercado Director | $4.1M 3.5K shares | 54% | No plan disclosed |
| Terrence Reed SVP & CHRO | $2.5M 1.8K shares | 39% | No plan disclosed |
| Herman Bulls Director | $2.0M 2K shares | 6.1% | No plan disclosed |
| Constance Skidmore Director | $1.4M 1K shares | 7.3% | No plan disclosed |
| Laura Howell SVP & General Counsel | $996K 1K shares | 11% | No plan disclosed |
| Rhoman Hardy Director | $650K 342 shares | 16% | No plan disclosed |
Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.
| Insider | Held Oct 8, 2025 | Sold | Held Oct 8, 2026 | Still held |
|---|---|---|---|---|
| Brian Lane Chief Executive Off., Director | 188K | −44K | 145K | 77% |
| Franklin Myers Director | 100K | −32K | 67K | 67% |
| William George III Chief Financial Officer | 47K | −21K | 30K | 64% |
| Herman Bulls Director | 33K | −2K | 30K | 92% |
| Darcy Anderson Director | 27K | −8.5K | 18K | 68% |
McKenna TrentiNew Form 3 filed 2021-01-07; earlier filings set aside. President/Chief Operating Off. | 22K | 0 | 22K | no sales |
Vesting, gifts, unvested awards and holding lines for McKenna Trent | ||||
| Vance Tang Director | 18K | 0 | 18K | no sales |
| Julie Shaeff Chief Accounting Officer | 16K | −3.4K | 13K | 79% |
| Constance Skidmore Director | 14K | −1K | 13K | 93% |
William SandbrookiAdditional holdings last reported more than 3 years ago are shown separately and excluded from totals. Director | 12K | −4K | 7.8K | 67% |
Vesting, gifts, unvested awards and holding lines for William Sandbrook0shares vested or exercised 0gifted (net of own trusts) none reportedunvested awards, start → end
Additional holdings last reported Jun 2, 2022, not confirmed since: 170 shares. Not included in any total or percentage on this page.
| ||||
| Laura Howell SVP & General Counsel | 8.9K | −1K | 7.9K | 89% |
| Pablo Mercado Director | 6.5K | −3.5K | 3.1K | 48% |
| Cindy Wallis-Lage Director | 5.7K | 0 | 5.8K | no sales |
| Terrence Reed SVP & CHRO | 4.6K | −1.8K | 3K | 64% |
| Rhoman Hardy Director | 2.1K | −342 | 1.9K | 89% |
Craig SasseriStarted reporting during the period; starting holdings are from the Form 3. Chief Operating Officer | 1.5K | 0 | 1.5K | no sales |
Vesting, gifts, unvested awards and holding lines for Craig Sasser | ||||
| Gaurav Kapoor Director | 727 | 0 | 832 | no sales |
Rachel EslickeriIncludes unvested RSUs, amount not disclosed. Started reporting during the period; starting holdings are from the Form 3. SVP & General Counsel | 490 | 0 | 608 | no sales |
Vesting, gifts, unvested awards and holding lines for Rachel Eslicker0shares vested or exercised 0gifted (net of own trusts) −99withheld by the company for taxes none reportedunvested awards, start → end
| ||||
18 of 18 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (18 exactly, 0 with a minor or footnoted difference). Percentages cover all 18 officers and directors. "Still held" compares ending with starting vested shares; a plus sign means the holding grew.
Officer and director open-market sales: $185M across 122,459 shares. Plan status and stated purpose are separate questions, and a sale can have both.
Sales with no 10b5-1 plan and no tax reference in the filing. $68.1M of it is Brian Lane. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Brian Lane, Aug 26, 2026
11,021 shares ($14.2M) were withheld by the company for taxes, which isn't a market sale.
Gifts the filings describe as charitable. Gifts are not sales and are not included in the sale totals.
| Seller | Shares sold | Proceeds | Under a disclosed plan | Share of total | Sales dates |
|---|---|---|---|---|---|
| Brian Lane Chief Executive Off., Director | 44K | $68.1M | 0% | 37% | Nov 24, 2025 to Aug 26, 2026 |
| Franklin Myers Director | 32K | $52.1M | 0% | 28% | Oct 29, 2025 to Aug 11, 2026 |
| William George III Chief Financial Officer | 21K | $31.7M | 0% | 17% | Dec 1, 2025 to Aug 17, 2026 |
| Darcy Anderson Director | 8.5K | $10.0M | 0% | 5% | Oct 31, 2025 to Mar 3, 2026 |
| William Sandbrook Director | 4K | $6.2M | 0% | 3% | Feb 24, 2026 to Apr 29, 2026 |
| Julie Shaeff Chief Accounting Officer | 3.4K | $5.4M | 0% | 3% | Mar 3, 2026 to May 11, 2026 |
| Pablo Mercado Director | 3.5K | $4.1M | 0% | 2% | Oct 29, 2025 to Apr 30, 2026 |
| Terrence Reed SVP & CHRO | 1.8K | $2.5M | 0% | 1% | Feb 24, 2026 to Mar 3, 2026 |
| Herman Bulls Director | 2K | $2.0M | 0% | 1% | Oct 29, 2025 to Oct 29, 2025 |
| Constance Skidmore Director | 1K | $1.4M | 0% | 0.8% | Feb 24, 2026 to Feb 24, 2026 |
| Laura Howell SVP & General Counsel | 1K | $996K | 0% | 0.5% | Dec 4, 2025 to Dec 4, 2025 |
| Rhoman Hardy Director | 342 | $650K | 0% | 0.4% | May 27, 2026 to May 27, 2026 |
| Month | Sale proceeds | Disclosed plan | To cover taxes | No plan disclosed |
|---|---|---|---|---|
| Oct 2025 | $13.4M | $0 | $0 | $13.4M |
| Nov 2025 | $6.8M | $0 | $0 | $6.8M |
| Dec 2025 | $5.2M | $0 | $0 | $5.2M |
| Jan 2026 | $0 | $0 | $0 | $0 |
| Feb 2026 | $46.0M | $0 | $0 | $46.0M |
| Mar 2026 | $10.9M | $0 | $0 | $10.9M |
| Apr 2026 | $3.5M | $0 | $0 | $3.5M |
| May 2026 | $43.2M | $0 | $0 | $43.2M |
| Jun 2026 | $13.1M | $0 | $0 | $13.1M |
| Jul 2026 | $0 | $0 | $0 | $0 |
| Aug 2026 | $43.2M | $0 | $0 | $43.2M |
| Sep 2026 | $0 | $0 | $0 | $0 |
| Oct 2026 | $0 | $0 | $0 | $0 |
In line with the past 5 years. 12 insiders sold; the average is 10 a year.
| 12 months ending | Shares sold | Insiders who sold | Proceeds |
|---|---|---|---|
| Oct 8, 2026 Latest 12 months | 122K | 12 | $185M |
| Oct 8, 2025 1 year earlier | 121K | 11 | $62.7M |
| Oct 8, 2024 2 years earlier | 109K | 10 | $32.3M |
| Oct 9, 2023 3 years earlier | 157K | 12 | $24.9M |
| Oct 9, 2022 4 years earlier | 243K | 10 | $24.0M |
| Oct 9, 2021 5 years earlier | 163K | 7 | $12.3M |
Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.
Every officer and director reconciles for this period.
Inferred typo: the share class "Commonn Stock" is treated as the same class as "Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Julie Shaeff, 31,618 shares): old title, new title
External context: we only cite outside events when a documented connection exists. None is shown for this period.
All 875 Forms 3, 4 and 5 filed for Comfort Systems USA (SEC CIK 1035983) from Dec 6, 2002 to Aug 27, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages. 6 older filings exist only on paper and could not be read.
Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.
Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".
| Name | Last filed | Last reported balance |
|---|---|---|
| Alan Krusi | Jun 17, 2022 | 58,828 shares, last reported balance as of Jun 16, 2022 |
| Terrence Young | Apr 5, 2021 | 5,274 shares, last reported balance as of Apr 1, 2021 |
| James Schultz | May 21, 2020 | 88,914 shares, last reported balance as of May 19, 2020 |
| Alfred Giardenelli Jr. | Sep 12, 2016 | 23,516 shares, last reported balance as of Sep 12, 2016 |
| James Mylett | Apr 5, 2016 | 12,329 shares, last reported balance as of Apr 4, 2016 |
| William Murdy | Apr 3, 2014 | 460,978 shares, last reported balance as of Apr 2, 2014 |
| Robert Wagner | Nov 7, 2013 | 35,000 shares, last reported balance as of Nov 5, 2013 |
| Thomas Tanner | Nov 10, 2009 | 153,468 shares, last reported balance as of Nov 6, 2009 |
| Steven Harter | Dec 12, 2006 | 187,534 shares, last reported balance as of Dec 12, 2006 |
| Gordon Beittenmiller | Jun 9, 2004 | 167,000 shares, last reported balance as of Jun 8, 2004 |
| Vincent Costantini | Feb 12, 2004 | No balance on record |
| Norman Chambers | Dec 11, 2003 | 87,900 shares, last reported balance as of Dec 9, 2003 |