Insider transactions

Brian E. Lane

CIK 1448240 · CHIEF EXECUTIVE OFF. · last filed 2026-09-15

Brian E. Lane is a CHIEF EXECUTIVE OFF. who has filed 220 SEC Form 4 insider transactions across 2 companies since 2009. The most recent filing, for MAIN, was dated Sep 15, 2026. Across all open-market trades the lifetime net is −$126.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $253.6M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure
$253.61M
Companies
2
Total Filings
220
Lifetime Open-Market Net
-$126.37M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

Filer Profile

Reported Address
C/O COMFORT SYSTEMS USA, INC.
9753 KATY FREEWAY, SUITE 700
HOUSTON, TX 77024
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
MAIN Director 53,322 $55.11 $2.94M $8.0K 145 2026-09-15
FIX CHIEF EXECUTIVE OFF. 145,065 $1728.01 $250.67M -$126.38M 64 2026-08-27

Recent Filings

220 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-09-15 MAIN Other (J) +236 $13.9K EDGAR
2026-08-27 FIX Sell (S) −16,024 -$25.77M EDGAR
2026-08-26 FIX Notice (144) −16,024 -$25.77M EDGAR
2026-08-14 MAIN Other (J) +824 $42.9K EDGAR
2026-05-28 MAIN Other (J) +264 $13.4K EDGAR
2026-05-06 MAIN Mixed +2,106 $87.8K EDGAR
2026-05-06 FIX Sell (S) −11,113 -$21.89M EDGAR
2026-05-05 FIX Notice (144) −11,113 -$21.89M EDGAR
2026-04-03 MAIN Other (J) +515 $27.4K EDGAR
2026-04-03 FIX Tax (F) −3,599 -$5.15M EDGAR
Showing 1–10 of 220
Page 1 of 22
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.