Melvin K Spigelman
CIK 1339901 · last filed 2026-03-23
"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
$0
Companies
4
Total Filings
31
Lifetime Open-Market Net
-$1.61M
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 |
|---|---|---|---|---|---|---|---|
| ANTX | Director | — | $4.74 | — | $0 | 6 | 2026-03-23 |
| SYNERGY PHARMACEUTICALS, INC. (SGYP) Delisted | Director | 48,305 | — | — | $0 | 3 | 2018-08-16 |
| MEDICINES CO /DE (MDCO) Delisted | Director | 60,633 | — | — | -$1.61M | 14 | 2018-05-29 |
| SYNERGY PHARMACEUTICALS, INC. (SGYPW) Delisted | Director | — | — | — | $0 | 8 | 2016-06-29 |
Recent Filings · Page 4 of 4
31 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2007-05-29 | MEDICINES CO /DE (MDCO) Delisted | Grant (A) | +3,750 | $0 | EDGAR |
Showing 31–31 of 31
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Page 4 of 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.