David Marc Howitt is Director at Datavault AI Inc. (DVLT). They have made 1 open-market trade across 1 company since 2025, most recently 2026-04-20.
CIK 0001323181
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 1 sale. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| HALO | 423,345 | $51.6M |
| DVLT | 561,909 | $73K |
| WISA | 19,656 | $24K |
| Total | $51.7M |
Shares reported on the most recent Form 4, priced at the 2026-04-22 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 |
|---|---|---|---|---|---|---|---|---|
| DVLT | SELL | 2025-12-08 | 2025-12-08 | $1.63 | $32K | -30.7% | -25.2% | -55.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.