DAVID R WALT
CIK 1205236 · last filed 2026-01-06
"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.
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Disclosed Exposure
$119.48M
Companies
4
Total Filings
327
Lifetime Open-Market Net
-$97.57M
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| 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 · Page 2 of 33
327 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-08-10 | QTRX | Buy (P) | +150,000 | $1.29M | EDGAR |
| 2022-01-05 | QTRX | Grant (A) | +2,668 | $0 | EDGAR |
| 2021-01-05 | QTRX | Grant (A) | +2,270 | $0 | EDGAR |
| 2020-06-08 | XCUR | Grant (A) | — | $0 | EDGAR |
| 2020-03-17 | QTRX | Buy (P) | +54,064 | $900.9K | EDGAR |
| 2020-03-16 | XCUR | Buy (P) | +291,066 | $352.9K | EDGAR |
| 2020-01-06 | QTRX | Grant (A) | +2,270 | $0 | EDGAR |
| 2019-08-06 | XCUR | Buy (P) | +1,000,000 | $2.00M | EDGAR |
| 2019-06-14 | — | Grant (A) | — | $0 | |
| 2019-01-04 | QTRX | Grant (A) | +2,270 | $0 | EDGAR |
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.