Lane Brian E. 4

What Happened

• Brian E. Lane, CEO of Comfort Systems USA, had restricted stock units vest and surrendered/forfeited shares to satisfy tax withholding obligations on April 1, 2026. The filing shows three withholding/disposition events totaling 3,599 shares at $1,429.60 per share for aggregate proceeds of $5,145,113.
  • 1,146 shares forfeited at $1,429.60 = $1,638,316
  • 941 shares forfeited at $1,429.60 = $1,345,249
  • 1,512 shares forfeited at $1,429.60 = $2,161,548
• This was a tax-withholding/share-surrender transaction (code F), not an open-market sale driven by a separate decision to sell.

Key Details

• Transaction date: April 1, 2026; filing date: April 3, 2026 (Form 4 filed timely).
• Price used: $1,429.60 per share (based on average of the high and low on April 1, 2026; see footnote F3).
• Total shares surrendered: 3,599; total value: $5,145,113.
• Shares owned after the transaction: Not disclosed in the provided excerpt of the filing.
• Footnotes: F1–F5 indicate these were forfeitures/withholdings tied to RSU vestings (vest dates include April 1, 2026 and earlier grant vestings from 2023–2025).
• Filing timeliness: No late filing flag shown (filed within expected Form 4 window).

Context

• These transactions represent routine tax withholding on vested restricted stock units (share surrender), not an independent open-market sale — commonly done to satisfy tax liabilities when RSUs vest.
• Such withholding transactions are generally administrative and don’t necessarily signal the insider’s view of the company’s shares.