🕵️ Federal Signal Corp /DE/ ($FSS)
SEC insider & ownership activity, last 12 months · CIK 277509 · every row links its SEC filing
Over the last 12 months insiders sold $5.7M against $222K of open-market buying. Weber Mark sold $5.7M (Nov). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $222K (1 lots) · 1 seller, $5.7M (7 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Weber Mark | 0 | – | 7 | $5.7M | Nov 6, 2025 |
| Richard A. Maue | 1 | $222K | 0 | – | Mar 10, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 14.1% | 13G | Jul 18, 2025 | filing ↗ | |
| Vanguard Portfolio Management | 6.1% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.2% | 13G | Apr 29, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Weber Mark | $5.9M | Nov 5, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Reg FD disclosure (7.01) | May 20, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 20, 2026 | filing ↗ |
| Shareholder vote (5.07) | Apr 21, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 21, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 2, 2026 | filing ↗ |
| Officer/director changes (5.02) | Feb 26, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 26, 2026 | filing ↗ |
| Other events (8.01) | Jan 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 16, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jan 14, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 14, 2026 | filing ↗ |
| Other events (8.01) | Dec 17, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 17, 2025 | filing ↗ |
| Acquisition or disposition (2.01) | Nov 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Nov 25, 2025 | filing ↗ |
| Material agreement (1.01) | Sep 24, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Sep 24, 2025 | filing ↗ |