Scott A. Cottrill is CFO & VP +1 at ADVANCED DRAINAGE SYSTEMS, INC. (WMS). They have made 7 open-market trades across 2 companies since 2007, most recently 2026-05-26.
CIK 0001343378
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.
0 open-market purchases, against 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| WMS | SELL | 2024-05-30 | 2024-06-03 | $173.11 | $25.3M | +3.8% | -7.0% | -11.2% |
| WMS | SELL | 2021-03-09 | 2021-03-11 | $105.83 | $9.5M | -7.9% | +5.9% | +1.9% |
| GR | SELL | 2011-02-08 | 2011-02-10 | $93.13 | $174K | N/A | N/A | N/A |
| GR | SELL | 2010-10-22 | 2010-10-25 | $80.36 | $804K | N/A | N/A | N/A |
| GR | SELL | 2010-05-03 | 2010-05-05 | $76.77 | $317K | N/A | N/A | N/A |
| GR | SELL | 2010-03-04 | 2010-03-08 | $68.51 | $352K | N/A | N/A | N/A |
| GR | SELL | 2007-11-05 | 2007-11-06 | $70.31 | $397K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.