Nathaniel T. Bradley is CEO & 10% Owner at Datavault AI Inc. (DVLT). They have made 5 open-market trades across 2 companies since 2019, most recently 2026-04-20.
CIK 0001755804
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.
1 open-market purchase totalling $96K since 2019, against 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| WISA | 3,999,911 | $4.8M |
| DVLT | 10,906,188 | $1.4M |
| PRLX | 10,179,527 | — |
| Total | $6.3M |
Shares reported on the most recent Form 4, priced at the 2026-05-14 close. 1 holding could not be priced and is excluded from the total.
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 | 2026-03-24 | 2026-03-26 | $0.63 | $304K | +15.7% | +21.1% | -42.7% |
| DVLT | SELL | 2025-12-23 | 2025-12-30 | $0.93 | $40K | +70.9% | +34.3% | +7.2% |
| DVLT | SELL | 2025-11-21 | 2025-11-25 | $2.44 | $118K | -31.1% | -67.0% | -69.9% |
| DVLT | SELL | 2025-08-28 | 2025-09-02 | $0.40 | $14K | +4.0% | +378.0% | +490.4% |
| PRLX | BUY | 2019-09-30 | 2019-11-19 | $0.06 | $96K | 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.