Transactions
22
Insider / FEDERAL SIGNAL CORP /DE/
WEBER MARK
SVP & COO at FEDERAL SIGNAL CORP /DE/
- Company
- FEDERAL SIGNAL CORP /DE/
- Ticker
- FSS
- First filing on record
- November 10, 2025
- Latest trade on record
- May 4, 2026
- SEC filings
- EDGAR ↗
WEBER MARK, SVP & COO at FEDERAL SIGNAL CORP /DE/, has disclosed 22 transactions in FSS since November 10, 2025: 0 purchases (0 open-market buys) and 9 sales, worth about $10.2M at the reported prices. The latest was filed May 5, 2026, 1 day after the trade.
Open-market buys
0
Sales
9
Avg. disclosure lag
3.8d
Trading in charts
Trade timeline
When does this person trade, how big, and in which direction? Every trade in the last 12 months.
Bought (above the line)Sold (below the line)Other transaction
In the last 12 months WEBER MARK made no purchases and 9 sales worth $7.1M, plus 13 other transactions. Dot size is the dollar amount.
Portfolio mix
Which stocks does this person trade most? Tile size is dollars traded, all time on record.
WEBER MARK has traded 1 stock on record; the largest by dollars is FSS.
Reporting lag
Does this person report on time? One bar per filing against the Form 4 deadline.
On timeLate
0 of 3 filings on record were reported after the Form 4 deadline (two business days, counted here as 4 calendar days).
What kind of transactions
Most Form 4 rows are pay arriving or tax being withheld, not a decision to buy or sell. Only code P is an open-market purchase and code S an open-market sale. What each code means: Form 4 transaction codes.
| Code | Meaning | Rows | Shares | Value |
|---|---|---|---|---|
| M | Option exercise or conversion | 10 | 102,374 | $2.2M |
| S | Open-market sale | 7 | 51,187 | $5.7M |
| A | Grant or award | 3 | 32,543 | $908K |
| F | Shares withheld for tax | 2 | 12,121 | $1.4M |
| Year | Rows | Bought | Sold |
|---|---|---|---|
| 2026 | 5 | 0 | 2 · $1.4M |
| 2025 | 17 | 0 | 7 · $5.7M |
Transactions
| Security | Side | Trade date | Disclosed | Lag | Shares | Price | Value | Flags | Source | Share |
|---|---|---|---|---|---|---|---|---|---|---|
| FSS | Sell F | May 4, 2026 | May 5, 2026 | 1d | 2,278 | $117 | $268K | Form 4 ↗ | ||
| FSS | Other A | February 27, 2026 | March 2, 2026 | 3d | 7,796 | $116 | $908K | derivative | Form 4 ↗ | |
| FSS | Other A | February 27, 2026 | March 2, 2026 | 3d | 2,577 | — | — | Form 4 ↗ | ||
| FSS | Sell F | February 26, 2026 | March 2, 2026 | 4d | 9,843 | $118 | $1.2M | Form 4 ↗ | ||
| FSS | Other A | February 26, 2026 | March 2, 2026 | 4d | 22,170 | — | — | Form 4 ↗ | ||
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 1,709 | — | — | derivative | Form 4 ↗ | |
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 11,470 | — | — | derivative | Form 4 ↗ | |
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 19,780 | — | — | derivative | Form 4 ↗ | |
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 15,682 | — | — | derivative | Form 4 ↗ | |
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 2,546 | — | — | derivative | Form 4 ↗ | |
| FSS | Sell S | November 6, 2025 | November 10, 2025 | 4d | 1,709 | $111 | $189K | Form 4 ↗ | ||
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 1,709 | $82 | $141K | Form 4 ↗ | ||
| FSS | Sell S | November 6, 2025 | November 10, 2025 | 4d | 11,470 | $111 | $1.3M | Form 4 ↗ | ||
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 11,470 | $52 | $594K | Form 4 ↗ | ||
| FSS | Sell S | November 6, 2025 | November 10, 2025 | 4d | 20 | $112 | $2,247 | Form 4 ↗ | ||
| FSS | Sell S | November 6, 2025 | November 10, 2025 | 4d | 19,760 | $112 | $2.2M | Form 4 ↗ | ||
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 19,780 | $36 | $708K | Form 4 ↗ | ||
| FSS | Sell S | November 6, 2025 | November 10, 2025 | 4d | 14,042 | $112 | $1.6M | Form 4 ↗ | ||
| FSS | Sell S | November 6, 2025 | November 10, 2025 | 4d | 1,640 | $113 | $185K | Form 4 ↗ | ||
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 15,682 | $43 | $672K | Form 4 ↗ | ||
| FSS | Sell S | November 6, 2025 | November 10, 2025 | 4d | 2,546 | $113 | $287K | Form 4 ↗ | ||
| FSS | Option / conversion M | November 6, 2025 | November 10, 2025 | 4d | 2,546 | $28 | $71K | Form 4 ↗ |
Filings
| Filed | Form | Accession | Rows | Status | Source |
|---|---|---|---|---|---|
| May 5, 2026 | Form 4 | 0001628280-26-030703 | 1 | published | EDGAR ↗ |
| March 2, 2026 | Form 4 | 0001628280-26-013482 | 4 | published | EDGAR ↗ |
| November 10, 2025 | Form 4 | 0001628280-25-051250 | 17 | published | EDGAR ↗ |
Other insiders at FEDERAL SIGNAL CORP /DE/
- Maue Richard A Exec. V.P & CFO 23 rows
- Bonina Diane VP, Gen'l Counsel & Secretary 14 rows
- Lowe Eugene Joseph III Director 13 rows
- REICHELDERFER BRENDA Director 9 rows
- SHERMAN JENNIFER L President & CEO 9 rows
- Hudson Ian A. S.V.P. & CFO 5 rows
- Vaillancourt Eric A. Director 4 rows
- Boeschen Felix VP Strategy/Investor Relations 2 rows
- Helmkamp Katrina L Director 2 rows
- Workman John L Director 2 rows
Everyone on file, with contracts and lobbying under the company's name: FEDERAL SIGNAL CORP /DE/.
Guides for this page
- What is SEC Form 4? Who files: officers, directors and owners of more than 10% of a class of the company's shares.
- Form 4 transaction codes P = purchase. S = sale. These are the two market trades.
- Insider buying vs insider selling Selling outweighs buying by a wide margin in normal times.
- Options and derivatives on Form 4 Table I = shares. Table II = options and other derivatives.
- What disclosure data cannot tell you Filings are late by design: up to 45 days for Congress, two business days for insiders.
Sources and method
| Source | Filings | Rows | First filed | Newest filed | Read the originals |
|---|---|---|---|---|---|
| SEC EDGAR, Form 4 | 3 | 22 | November 10, 2025 | May 5, 2026 | Form 4 list on EDGAR |
Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.
Every row comes from the reporting owner's Form 4 as filed with the SEC (EDGAR ownership XML), read daily. "Value" is shares × the reported price; code P is an open-market purchase, S a sale, M an option exercise, A a grant. The lag is the filing date minus the trade date; Form 4 is due within two business days. Amendments (4/A) are not merged. Details on the methodology page; report an error on corrections.
Not investment advice. Figures are public disclosures shown as filed; they may lag the trade and may be amended later. No recommendation is made or implied.