William S. Singer
CIK 1617927 · last filed 2026-05-19
"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
$70.8K
Companies
3
Total Filings
21
Lifetime Open-Market Net
-$31.6K
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 2 of 3
21 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-06-23 | TAO Synergies Inc. (SNPX) Delisted | Other (J) | — | $0 | EDGAR |
| 2022-04-06 | TAO Synergies Inc. (SNPX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2021-07-15 | TAO Synergies Inc. (SNPX) Delisted | Grant (A) | +60,000 | $0 | EDGAR |
| 2020-12-03 | NTRP | Disp (D) | — | $0 | EDGAR |
| 2020-11-27 | NTRP | Grant (A) | — | $0 | EDGAR |
| 2020-03-24 | NTRP | Grant (A) | — | $0 | EDGAR |
| 2019-04-15 | NTRP | Grant (A) | — | $0 | EDGAR |
| 2019-01-24 | NTRP | Grant (A) | — | $0 | EDGAR |
| 2018-03-15 | NTRP | Grant (A) | — | $0 | EDGAR |
| 2017-03-21 | — | Grant (A) | — | $0 |
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.