David M. Shaffer is CEO at EnerSys (ENS). They have made 12 open-market trades across 1 company since 2013, most recently 2025-03-28.
CIK 0001577486
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 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ENS | 77,103 | $13.0M |
Shares reported on the most recent Form 4, priced at the 2025-04-01 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ENS | SELL | 2025-02-25 | 2025-02-27 | $100.97 | $1.5M | -3.3% | -10.1% | -18.3% |
| ENS | SELL | 2025-02-21 | 2025-02-25 | $101.66 | $14.8M | -0.8% | -7.1% | -17.5% |
| ENS | SELL | 2025-02-19 | 2025-02-21 | $101.56 | $6.5M | -1.8% | -3.7% | -20.4% |
| ENS | SELL | 2025-02-12 | 2025-02-14 | $100.18 | $3.1M | +2.5% | -2.6% | -0.0% |
| ENS | SELL · 10b5-1 | 2024-11-25 | 2024-11-27 | $100.01 | $2.0M | -2.6% | -4.0% | +5.6% |
| ENS | SELL | 2024-08-29 | 2024-08-30 | $100.08 | $1.8M | -1.9% | +2.3% | -3.1% |
| ENS | SELL | 2024-08-26 | 2024-08-28 | $100.00 | $240K | -3.4% | +2.5% | -2.3% |
| ENS | SELL | 2021-08-31 | 2021-08-31 | $85.02 | $604K | -5.8% | -12.3% | -11.3% |
| ENS | SELL | 2021-08-20 | 2021-08-20 | $85.25 | $725K | -0.6% | -13.2% | -9.0% |
| ENS | SELL | 2021-08-02 | 2021-08-04 | $100.03 | $1.2M | -4.7% | -12.3% | -12.8% |
| ENS | SELL | 2014-05-28 | 2014-05-30 | $68.63 | $516K | -3.2% | -0.7% | -0.7% |
| ENS | SELL | 2014-05-20 | 2014-05-20 | $— | $58 | -3.2% | -0.7% | -0.7% |
| ENS | SELL | 2013-05-31 | 2013-06-04 | $49.26 | $328K | -3.2% | -0.7% | -0.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.