DAVID R WALT
CIK 1205236 · last filed 2026-01-06
DAVID R WALT is a corporate insider who has filed 327 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for QTRX, was dated Jan 6, 2026. Across all open-market trades the lifetime net is −$97.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $119.5M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$119.48M
4
327
-$97.57M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| QTRX | Director | 1,872,890 | $3.10 | $5.81M | $7.94M | 18 | 2026-01-06 |
| XCUR | Director | 2,058,777 | $2.78 | $5.72M | $2.35M | 3 | 2020-06-08 |
| Dare Bioscience, Inc. (CERU) Delisted | Director | 193,700 | — | — | $436.1K | 24 | 2017-01-05 |
| ILMN | Director | 670,600 | $160.97 | $107.95M | -$108.29M | 279 | 2016-04-11 |
Recent Filings
327 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-06 | QTRX | Grant (A) | +1,215 | $0 | EDGAR |
| 2025-10-03 | QTRX | Grant (A) | +2,594 | $14.4K | EDGAR |
| 2025-07-02 | QTRX | Grant (A) | +2,148 | $14.4K | EDGAR |
| 2025-06-13 | QTRX | Buy (P) | +160,000 | $985.0K | EDGAR |
| 2025-06-09 | QTRX | Buy (P) | +210,000 | $1.13M | EDGAR |
| 2025-04-03 | QTRX | Grant (A) | +2,156 | $14.4K | EDGAR |
| 2025-01-06 | QTRX | Grant (A) | +7,435 | $0 | EDGAR |
| 2024-09-17 | QTRX | Mixed | +45,000 | $624.6K | EDGAR |
| 2024-01-04 | QTRX | Grant (A) | +2,947 | $0 | EDGAR |
| 2023-01-04 | QTRX | Grant (A) | +8,083 | $0 | EDGAR |