← United States · Coverage record
US · SEC FORM 4
SIGA TECHNOLOGIES INC
SIGA · Nasdaq · CIK 0001010086 · Healthcare · Drug Manufacturers—Specialty & Generic
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
14 Form 4 transaction lines observed in the same window
0 sales · 14 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 1 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot.—
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 3,600,907
- Previous report
- 3,729,992
- Avg daily volume
- 690,659
- Days to cover
- 5.2
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
No qualifying code P equity purchase is present in the local Form 4 history.
Form 4 evidence
26 transaction lines in the latest 365-day window; 123 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-09 | Phillips Holly L. | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | Phillips Holly L. | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-06-09 | Nemirovsky Julian | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
Show recent Form 4 evidence (26 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-09 | Phillips Holly L. | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | Phillips Holly L. | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-06-09 | Nemirovsky Julian | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | Nemirovsky Julian | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-06-09 | Nabel Gary J. | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | Nabel Gary J. | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-06-09 | Marshall Joseph W III | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | Marshall Joseph W III | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-06-09 | KEANE JOHN M | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | KEANE JOHN M | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-06-09 | Ford Harold Eugene Jr. | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | Ford Harold Eugene Jr. | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-06-09 | DURNAN JAYMIE A | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 24,116 | USD — | USD — | SEC filing ↗ |
| 2026-06-09 | DURNAN JAYMIE A | D (D) | Common Stock, par value $.0001 per share | 7,235 | USD 4.39 | USD 31,762 | SEC filing ↗ |
| 2026-03-25 | Miller Larry R. | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 6,920 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-25 | Miller Larry R. | Tax withholding (F) | Common Stock, par value $.0001 per share | 3,526 | USD 4.99 | USD 17,595 | SEC filing ↗ |
| 2026-03-13 | Nguyen Diem | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 85,045 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-13 | Nguyen Diem | Tax withholding (F) | Common Stock, par value $.0001 per share | 47,029 | USD 5.26 | USD 247,373 | SEC filing ↗ |
| 2026-03-13 | Miller Larry R. | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 21,261 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-13 | Miller Larry R. | Tax withholding (F) | Common Stock, par value $.0001 per share | 11,187 | USD 5.26 | USD 58,844 | SEC filing ↗ |
| 2026-03-13 | Luckshire Daniel J | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 11,503 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-13 | Luckshire Daniel J | Tax withholding (F) | Common Stock, par value $.0001 per share | 6,074 | USD 5.26 | USD 31,949 | SEC filing ↗ |
| 2026-03-13 | Hruby Dennis E | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 11,445 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-13 | Hruby Dennis E | Tax withholding (F) | Common Stock, par value $.0001 per share | 3,955 | USD 5.26 | USD 20,803 | SEC filing ↗ |
| 2026-01-27 | Nguyen Diem | Option exercise / conversion (M) | Common Stock, par value $.0001 per share | 55,902 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-27 | Nguyen Diem | Tax withholding (F) | Common Stock, par value $.0001 per share | 22,804 | USD 6.82 | USD 155,523 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | SIGA |
| CIK | 0001010086 |
| Sector | Healthcare |
| Industry | Drug Manufacturers—Specialty & Generic Yahoo Finance |
| SEC SIC | 2834 Pharmaceutical Preparations |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 123 transaction lines from 2020-05-21 to 2026-06-09 0 P purchase lines · 2 S sale lines · 121 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.