Mark Weber is COO & VP at FEDERAL SIGNAL CORP /DE/ (FSS). They have made 27 open-market trades across 12 companies since 2006, most recently 2026-05-04.
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
10 open-market purchases totalling $671K since 2007, against 17 sales. Across 6 scored buys the stock is down 0.2% at ninety days, and 0.5 points behind the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 17% | 17% |
| Avg Move | -3.8% | -0.2% | -0.2% |
| Alpha | +2.0% | -0.5% | -0.5% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| FSS | SELL | 2025-11-06 | 2025-11-10 | $111.54 | $11.2M | -5.0% | -1.2% | +4.5% |
| FSS | SELL | 2023-11-08 | 2023-11-13 | $64.62 | $7.7M | +5.3% | +12.7% | +20.0% |
| PPR | SELL | 2018-06-04 | 2018-06-06 | $5.11 | $122K | -0.8% | -1.6% | -2.5% |
| PPR | SELL | 2018-06-04 | 2018-06-05 | $— | $3 | -0.6% | -1.8% | -2.5% |
| IGD | SELL | 2018-04-26 | 2018-04-30 | $— | $1 | N/A | N/A | N/A |
| IHD | SELL | 2018-04-26 | 2018-04-30 | $— | $6 | N/A | N/A | N/A |
| IDE | SELL | 2018-04-26 | 2018-04-30 | $— | $4 | N/A | N/A | N/A |
| IAE | SELL | 2018-04-26 | 2018-04-30 | $— | $7 | +0.6% | -2.0% | -9.0% |
| IRR | SELL | 2018-04-26 | 2018-04-30 | $— | $6 | N/A | N/A | N/A |
| IGA | SELL | 2018-04-26 | 2018-04-30 | $— | $5 | N/A | N/A | N/A |
| STS | SELL | 2016-07-28 | 2016-08-01 | $16.58 | $332K | -2.6% | +5.9% | -25.1% |
| STS | SELL | 2016-07-27 | 2016-07-29 | $16.78 | $168K | -8.2% | -2.1% | -30.8% |
| STS | SELL | 2016-05-11 | 2016-05-12 | $12.63 | $505K | -5.2% | -4.4% | +22.3% |
| PPR | BUY | 2015-01-23 | 2015-01-30 | $5.27 | $52K | -2.2% | +0.0% | +0.0% |
| PPR | BUY | 2015-01-22 | 2015-01-23 | $5.26 | $140K | -2.2% | +0.0% | +0.0% |
| XSIAX | SELL | 2014-12-15 | 2014-12-16 | $13.08 | $139K | N/A | N/A | N/A |
| PPR | BUY | 2014-12-04 | 2014-12-05 | $5.38 | $1K | -2.2% | +0.0% | +0.0% |
| PPR | BUY | 2014-12-04 | 2014-12-05 | $5.38 | $187K | -2.2% | +0.0% | +0.0% |
| IHD | BUY | 2014-05-16 | 2014-05-16 | $12.44 | $37K | N/A | N/A | N/A |
| STS | BUY | 2014-05-09 | 2014-05-12 | $5.83 | $58K | -5.5% | +0.3% | +0.3% |
| IDE | BUY | 2013-10-22 | 2013-10-23 | $17.07 | $30K | N/A | N/A | N/A |
| XSIAX | BUY | 2013-03-14 | 2013-03-15 | $13.40 | $130K | N/A | N/A | N/A |
| XSIIX | SELL | 2011-04-30 | 2011-05-19 | $13.32 | $163K | N/A | N/A | N/A |
| IRR | BUY | 2007-08-16 | 2007-08-20 | $15.60 | $16K | N/A | N/A | N/A |
| IAE | BUY | 2007-08-16 | 2007-08-20 | $19.00 | $19K | -8.7% | -1.7% | -1.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| IDE |
| 2,708 |
| — |
| IGA | 713 | — |
| IGD | 801 | — |
| IHD | 4,505 | — |
| IRR | 4,807 | — |
| Total | $27.5M |
Shares reported on the most recent Form 4, priced at the 2026-05-05 close. 6 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.