Jon J. Sisulak is Controller at DOUGLAS DYNAMICS, INC (PLOW). They have made 6 open-market trades across 1 company since 2019, most recently 2026-03-09.
CIK 0001765621
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 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PLOW | 14,232 | $562K |
Shares reported on the most recent Form 4, priced at the 2026-03-11 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PLOW | SELL | 2026-03-09 | 2026-03-11 | $42.61 | $42K | -3.0% | +9.0% | +8.2% |
| PLOW | SELL · 10b5-1 | 2025-03-10 | 2025-03-11 | $25.81 | $22K | -4.2% | -10.3% | +15.0% |
| PLOW | SELL · 10b5-1 | 2024-03-11 | 2024-03-13 | $24.86 | $22K | -3.6% | -8.7% | +0.9% |
| PLOW | SELL | 2023-03-06 | 2023-03-07 | $37.05 | $12K | -16.5% | -18.2% | -19.8% |
| PLOW | SELL | 2022-03-07 | 2022-03-08 | $35.91 | $13K | -1.5% | -9.3% | -13.6% |
| PLOW | SELL | 2021-03-10 | 2021-03-12 | $49.29 | $18K | -12.0% | -7.8% | -15.2% |
| PLOW | SELL | 2020-03-06 | 2020-03-09 | $39.85 | $11K | -31.1% | -12.0% | +3.7% |
| PLOW | SELL | 2019-03-06 | 2019-03-07 | $40.63 | $21K | -2.7% | -3.3% | -6.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.