SEC Form 4 · accession 0001628280-26-053640
FEDERAL SIGNAL CORP /DE/ · FSS
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Diane Bonina
Officer — VP, Gen'l Counsel & Secretary
Period of report
Aug 3, 2026
Accepted (ET)
Aug 5, 2026 · 6:37 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000277509
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 3, 2026 | S | 4,408 | $128.7495 | D | 15,689 | D | |
| Common Stock | Aug 4, 2026 | M | 8,406 | $35.80 | A | 24,095 | D | |
| Common StockF1 | Aug 4, 2026 | S | 8,306 | $130.4519 | D | 15,789 | D | |
| Common Stock | Aug 4, 2026 | S | 100 | $131.05 | D | 15,689 | D | |
| Common Stock | Aug 4, 2026 | M | 6,450 | $51.81 | A | 22,139 | D | |
| Common StockF2 | Aug 4, 2026 | S | 6,350 | $130.4118 | D | 15,789 | D | |
| Common Stock | Aug 4, 2026 | S | 100 | $131.05 | D | 15,689 | D | |
| Common StockF3 | holding | — | — | — | 665 | I | held by 401(k) plan |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right-to-buy)F4 | $35.80 | Aug 4, 2026 | M | 8,406 | D | — | May 4, 2032 | Common Stock | 8,406 | 0 | D |
| Stock Option (right-to-buy)F5 | $51.81 | Aug 4, 2026 | M | 6,450 | D | — | May 4, 2033 | Common Stock | 6,450 | 0 | D |
Explanation of responses
- F1This transaction was executed in multiple trades at prices ranging from $130.00 to $130.80; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC, Federal Signal Corporation, or a security holder of Federal Signal Corporation.
- F2This transaction was executed in multiple trades at prices ranging from $130.01 to $130.97; the price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions were effected upon request to the SEC, Federal Signal Corporation, or a security holder of Federal Signal Corporation.
- F3Units held in the Issuer 401(k) plan, which are convertible into Issuer common stock, were adjusted from 664.8677 to 665.1375 based on the Issuer price per share of $129.12 on 08/03/2026.
- F4The option vested in three equal installments on May 4, 2023, 2024, and 2025.
- F5The option vested in three equal installments on May 4, 2024, 2025, and 2026.