FSS (Federal Signal Corp.)
Insider Trading Activity
Every open-market purchase and sale reported by FSS officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-06 | BRENDA REICHELDERFER | Director | MIXED | — | — |
| 2026-08-06 | BRENDA REICHELDERFER | Director | MIXED | — | — |
| 2026-08-05 | Diane Bonina | VP, Gen'l Counsel & Secretary | MIXED | — | — |
| 2026-06-29 | Richard A Maue | Director | A | — | — |
| 2026-06-29 | Eric A. Vaillancourt | Director | A | — | — |
| 2026-05-05 | Ian A. Hudson | S.V.P. & CFO | F | — | — |
| 2026-05-05 | JENNIFER L SHERMAN | President & CEO | MIXED | — | — |
| 2026-05-05 | Diane Bonina | VP, Gen'l Counsel & Secretary | F | — | — |
| 2026-05-05 | MARK WEBER | SVP & COO | F | — | — |
| 2026-04-23 | Katrina L Helmkamp | Director | A | — | — |
| 2026-04-23 | John L Workman | Director | A | — | — |
| 2026-04-23 | Shashank Patel | Director | A | — | — |
| 2026-04-23 | Eugene Joseph Lowe III | Director | A | — | — |
| 2026-04-23 | Richard A Maue | Director | A | — | — |
| 2026-04-23 | BRENDA REICHELDERFER | Director | A | — | — |
| 2026-04-23 | Eric A. Vaillancourt | Director | A | — | — |
| 2026-03-30 | Richard A Maue | Director | A | — | — |
| 2026-03-30 | Eric A. Vaillancourt | Director | A | — | — |
| 2026-03-10 | Richard A Maue | Director | Buy | — | — |
| 2026-03-04 | BRENDA REICHELDERFER | Director | G | — | — |
| 2026-03-02 | JENNIFER L SHERMAN | President & CEO | MIXED | — | — |
| 2026-03-02 | Felix Boeschen | VP Strategy/Investor Relations | A | — | — |
| 2026-03-02 | Ian A. Hudson | S.V.P. & CFO | MIXED | — | — |
| 2026-03-02 | Diane Bonina | VP, Gen'l Counsel & Secretary | MIXED | — | — |
| 2026-03-02 | MARK WEBER | SVP & COO | MIXED | — | — |
| 2025-12-19 | JENNIFER L SHERMAN | President & CEO | G | — | — |
| 2025-11-12 | John L Workman | Director | G | — | — |
| 2025-11-10 | MARK WEBER | SVP & COO | MIXED | — | — |
| 2025-11-06 | BRENDA REICHELDERFER | Director | G | — | — |
| 2025-11-05 | DENNIS J MARTIN | Director | G | — | — |
| 2025-06-30 | Katrina L Helmkamp | Director | A | — | — |
| 2025-05-06 | Felix Boeschen | VP Strategy/Investor Relations | A | — | — |
| 2025-05-06 | Diane Bonina | VP, Gen'l Counsel & Secretary | MIXED | — | — |
| 2025-05-06 | MARK WEBER | SVP & COO | MIXED | — | — |
| 2025-05-06 | JENNIFER L SHERMAN | President & CEO | MIXED | — | — |
| 2025-05-06 | Ian A. Hudson | S.V.P. & CFO | MIXED | — | — |
| 2025-04-23 | DENNIS J MARTIN | Director | A | — | — |
| 2025-04-23 | Katrina L Helmkamp | Director | A | — | — |
| 2025-04-23 | BRENDA REICHELDERFER | Director | A | — | — |
| 2025-04-23 | Eugene Joseph Lowe III | Director | A | — | — |
| 2025-04-23 | Shashank Patel | Director | A | — | — |
| 2025-04-23 | John L Workman | Director | A | — | — |
| 2025-04-09 | JENNIFER L SHERMAN | President & CEO | MIXED | — | — |
| 2025-03-31 | Katrina L Helmkamp | Director | A | — | — |
| 2025-03-20 | Diane Bonina | VP, Gen'l Counsel & Secretary | MIXED | — | — |
| 2025-03-17 | Diane Bonina | VP, Gen'l Counsel & Secretary | I | — | — |
| 2025-03-03 | JENNIFER L SHERMAN | President & CEO | Buy | — | — |
| 2025-02-28 | Ian A. Hudson | S.V.P. & CFO | MIXED | — | — |
| 2025-02-28 | JENNIFER L SHERMAN | President & CEO | MIXED | — | — |
| 2025-02-28 | Diane Bonina | VP, Gen'l Counsel & Secretary | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | President-FSTech Group | 1,231,167 | — |
| — | President & CEO | 701,945 | — |
| — | Director | 452,238 | — |
| — | President and CEO | 259,809 | — |
| — | Director | 127,587 | — |
| — | President & CEO | 99,811 | — |
| — | S.V.P. & CFO | 96,663 | — |
| — | Director | 91,398 | — |
| — | SVP & COO | 86,770 | — |
| — | Director | 77,342 | — |
| — | VP, GC & Secretary | 73,858 | — |
| — | Director | 72,901 | — |
| — | Director | 68,214 | — |
| — | Director | 67,217 | — |
| — | Sr. Vice President & CFO | 64,628 | — |
| — | Director | 64,519 | — |
| — | Director | 58,734 | — |
| — | Director | 51,958 | — |
| — | President-Fire Rescue Group | 41,941 | — |
| — | President-Bronto Skylift | 40,851 | — |
| — | Pres.-Safety & Sec. Sys. Grop. | 38,570 | — |
| — | Director | 36,886 | — |
| — | Sr. V.P. and CFO | 35,884 | — |
| — | VP-Global Oper. Strategy & CFO | 35,778 | — |
| — | Director | 35,764 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the FSS quote page; the site-wide leaderboard is on the insider transactions hub.