POWELL THOMAS W 4

What Happened
Thomas W. Powell, a 10% owner of Powell Industries (POWL), sold a total of 1,477 shares in open-market transactions on February 24–25, 2026. The individual sales were: 400 shares at $560.30 ($224,120); 412 shares at $561.44 ($231,313); 223 shares at $562.25 ($125,381); 124 shares at $563.65 ($69,893); and 318 shares at $560.37 ($178,199). Combined proceeds across all trades were approximately $828,906. These were outright sales (S), which are typically treated as routine dispositions rather than bullish signals.

Key Details

• Transaction dates: Feb 24, 2026 (four blocks) and Feb 25, 2026 (one block).
• Prices: Reported as weighted averages; reported price ranges per footnotes:
  • 400-share block: $560.00–$560.98 (F1)
  • 412-share block: $561.00–$561.98 (F2)
  • 223-share block: $562.00–$562.52 (F3)
  • 124-share block: $563.275–$564.08 (F4)
  • 318-share block: $560.00–$560.50 (F5)
• Total sold: 1,477 shares for ~ $828,906.
• Shares owned after transaction: Not specified in the provided excerpt of the filing.
• Notable footnotes: some holdings are directly held by the reporting person's spouse (F6); the reporting person disclaims beneficial ownership except for any pecuniary interest (F7).
• Filing timeliness: Form 4 filed Feb 26, 2026 — appears to be timely (Filed within normal SEC reporting window).

Context
This filing documents secondary-market sales by a significant (10%) shareholder rather than a purchase or option exercise. Sales can reflect many reasons (diversification, liquidity needs, estate planning, etc.); the filing itself does not state a motive. Footnotes clarify the sales were executed in multiple trades at the listed price ranges and note spouse-held shares and a standard disclaimer of beneficial ownership.