David M. Epstein
CIK 1488668 · SEE REMARKS · last filed 2025-06-06
"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.
Loading insider history…
Disclosed Exposure
$1.45M
Companies
3
Total Filings
36
Lifetime Open-Market Net
-$1.67M
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.
Recent Filings · Page 3 of 4
36 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-06-27 | BDTX | Notice (144) | −25,000 | -$167.5K | EDGAR |
| 2023-02-15 | BDTX | Grant (A) | — | $0 | EDGAR |
| 2022-02-17 | BDTX | Grant (A) | — | $0 | EDGAR |
| 2021-02-19 | BDTX | Grant (A) | — | $0 | EDGAR |
| 2021-01-06 | BDTX | Mixed | −9,000 | -$354.2K | EDGAR |
| 2020-12-16 | BDTX | Exer (M) | +2,500 | $16.1K | EDGAR |
| 2020-12-03 | BDTX | Mixed | −9,000 | -$373.3K | EDGAR |
| 2020-11-03 | BDTX | Mixed | −9,000 | -$354.4K | EDGAR |
| 2020-10-02 | BDTX | Mixed | −9,000 | -$344.7K | EDGAR |
| 2020-02-05 | BDTX | Conv (C) | +270,348 | $0 | EDGAR |
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.