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.
Loading insider history…
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 | — | $4.70 | — | $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 2 of 4
31 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 |
|---|---|---|---|---|---|
| 2017-05-30 | MEDICINES CO /DE (MDCO) Delisted | Grant (A) | +3,237 | $0 | EDGAR |
| 2017-05-25 | MEDICINES CO /DE (MDCO) Delisted | Exer (M) | +7,500 | $147.0K | EDGAR |
| 2016-06-29 | SYNERGY PHARMACEUTICALS, INC. (SGYPW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2016-06-27 | SYNERGY PHARMACEUTICALS, INC. (SGYPW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2016-05-31 | MEDICINES CO /DE (MDCO) Delisted | Grant (A) | +3,426 | $0 | EDGAR |
| 2016-05-26 | MEDICINES CO /DE (MDCO) Delisted | Mixed | — | -$276.0K | EDGAR |
| 2015-09-02 | MEDICINES CO /DE (MDCO) Delisted | Mixed | — | -$392.6K | EDGAR |
| 2015-07-28 | SYNERGY PHARMACEUTICALS, INC. (SGYPW) Delisted | Grant (A) | — | $0 | EDGAR |
| 2015-06-01 | MEDICINES CO /DE (MDCO) Delisted | Grant (A) | +4,531 | $0 | EDGAR |
| 2014-12-09 | SYNERGY PHARMACEUTICALS, INC. (SGYPW) Delisted | Grant (A) | — | $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.