Bonina Diane 4

What Happened
Diane Bonina, Vice President, General Counsel & Secretary of Federal Signal Corp (FSS), disposed of 962 shares on 2026-05-04 to satisfy tax withholding related to an equity event. The shares were valued at $117.49 each, for a total of approximately $113,025. This transaction is recorded as code F (payment of exercise price or tax liability), meaning shares were withheld/used to cover taxes rather than sold as a typical open-market sale.

Key Details

• Transaction date: 2026-05-04; reported on a Form 4 filed 2026-05-05 (timely).
• Price per share: $117.49; shares disposed: 962; total value ≈ $113,025.
• Shares/units reported after transaction: 664.8677 units held in the issuer 401(k) plan (convertible into common stock). The filing does not disclose Bonina’s full beneficial ownership beyond the reported 401(k) units.
• Footnote: Units in the issuer 401(k) plan were adjusted from 664.5692 to 664.8677 based on the $117.49 per-share price effective 05/04/2026 (F1).
• Transaction code F = payment of exercise price or tax liability (withholding), not an open-market purchase or investment signal.

Context
Tax-withholding dispositions (code F) are routine administrative actions after option exercises or vesting events; they generally reflect tax obligations rather than a deliberate decision to reduce or increase a personal investment position.