SEC Form 4 · Updated Daily
FSS
— FEDERAL SIGNAL CORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| SHERMAN JENNIFER L | Director | 641,723.609 | 2026-05-04 | F |
| MARTIN DENNIS J | Director | 452,238 | 2025-11-04 | G |
| Hudson Ian A. | Officer | 96,663 | 2026-05-04 | F |
| WEBER MARK | Officer | 86,500 | 2026-05-04 | F |
| Workman John L | Director | 58,734 | 2026-04-21 | A |
| REICHELDERFER BRENDA | Director | 45,888 | 2026-08-04 | S |
| Lowe Eugene Joseph III | Director | 22,571 | 2026-04-21 | A |
| Bonina Diane | Officer | 22,139 | 2026-08-04 | M |
| Patel Shashank | Director | 11,914 | 2026-04-21 | A |
| Helmkamp Katrina L | Director | 5,603 | 2026-04-21 | A |
| Maue Richard A | Director | 3,419 | 2026-06-26 | A |
| Boeschen Felix | Officer | 1,726 | 2026-02-27 | A |
| Vaillancourt Eric A. | Director · Officer | 1,415 | 2026-06-26 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-08-04 | Bonina Diane | Option exercise (derivative) | 8,406 | $0.00 | 0 |
| 2026-08-04 | Bonina Diane | Option exercise | 6,450 | $51.81 | 22,139 |
| 2026-08-04 | Bonina Diane | Open-market sale | 100 | $131.05 | 15,689 |
| 2026-08-04 | Bonina Diane | Open-market sale | 8,306 | $130.45 | 15,789 |
| 2026-08-04 | Bonina Diane | Option exercise | 8,406 | $35.80 | 24,095 |
| 2026-08-04 | REICHELDERFER BRENDA | Open-market sale | 6,070 | $131.02 | 45,888 |
| 2026-08-04 | REICHELDERFER BRENDA | Gift | 7,650 | $0.00 | 51,958 |
| 2026-08-03 | Bonina Diane | Open-market sale | 4,408 | $128.75 | 15,689 |
| 2026-06-26 | Maue Richard A | Grant / award | 99 | $0.00 | 3,419 |
| 2026-06-26 | Vaillancourt Eric A. | Grant / award | 96 | $0.00 | 1,415 |
| 2026-05-04 | Bonina Diane | Tax withholding | 962 | $117.49 | 20,097 |
| 2026-05-04 | WEBER MARK | Tax withholding | 2,278 | $117.49 | 86,500 |
| 2026-05-04 | Hudson Ian A. | Tax withholding | 1,657 | $117.49 | 96,663 |
| 2026-05-04 | SHERMAN JENNIFER L | Tax withholding | 7,695 | $117.49 | 641,723.609 |
| 2026-05-01 | SHERMAN JENNIFER L | Option exercise (derivative) | 59,242 | $0.00 | 0 |
| 2026-05-01 | SHERMAN JENNIFER L | Tax withholding | 29,680 | $121.61 | 649,418.609 |
| 2026-05-01 | SHERMAN JENNIFER L | Option exercise | 59,242 | $12.66 | 679,098.609 |
| 2026-04-21 | REICHELDERFER BRENDA | Grant / award | 1,674 | $0.00 | 59,608 |
| 2026-04-21 | Helmkamp Katrina L | Grant / award | 1,277 | $0.00 | 5,603 |
| 2026-04-21 | Lowe Eugene Joseph III | Grant / award | 1,277 | $0.00 | 22,571 |
| 2026-04-21 | Maue Richard A | Grant / award | 1,277 | $0.00 | 3,320 |
| 2026-04-21 | Patel Shashank | Grant / award | 1,277 | $0.00 | 11,914 |
| 2026-04-21 | Vaillancourt Eric A. | Grant / award | 1,277 | $0.00 | 1,319 |
| 2026-04-21 | Workman John L | Grant / award | 1,277 | $0.00 | 58,734 |
| 2026-03-27 | Maue Richard A | Grant / award | 43 | $0.00 | 2,043 |
| 2026-03-27 | Vaillancourt Eric A. | Grant / award | 42 | $0.00 | 42 |
| 2026-03-10 | Maue Richard A | Open-market buy | 2,000 | $110.77 | 2,000 |
| 2026-03-04 | REICHELDERFER BRENDA | Gift | 215 | $0.00 | 57,934 |
| 2026-02-27 | Boeschen Felix | Grant / award (derivative) | 1,787 | $116.43 | 1,787 |
| 2026-02-27 | Boeschen Felix | Grant / award | 590 | $0.00 | 1,726 |
| 2026-02-27 | WEBER MARK | Grant / award (derivative) | 7,796 | $116.43 | 7,796 |
| 2026-02-27 | WEBER MARK | Grant / award | 2,577 | $0.00 | 88,778 |
| 2026-02-27 | Hudson Ian A. | Grant / award (derivative) | 7,309 | $116.43 | 7,309 |
| 2026-02-27 | Hudson Ian A. | Grant / award | 2,416 | $0.00 | 98,320 |
| 2026-02-27 | Bonina Diane | Grant / award (derivative) | 4,224 | $116.43 | 4,224 |
| 2026-02-27 | Bonina Diane | Grant / award | 1,396 | $0.00 | 21,059 |
| 2026-02-27 | SHERMAN JENNIFER L | Grant / award (derivative) | 35,742 | $116.43 | 35,742 |
| 2026-02-27 | SHERMAN JENNIFER L | Grant / award | 11,810 | $0.00 | 619,027.835 |
| 2026-02-26 | WEBER MARK | Tax withholding | 9,843 | $117.63 | 86,201 |
| 2026-02-26 | WEBER MARK | Grant / award | 22,170 | $0.00 | 96,044 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.