ISSUER PROFILE · CIK 0000788611
SIGMA LABS, INC.NTRP
1 13D/G filings
1 distinct filers
6 insider transactions (365d)
Cross-Reference Snapshot
Distinct filers
1
single filer
Insiders (365d)
6
1 buys · 4 sales
Latest short DTC
2.32
as of 2026-10-15
13D/G Filings Timeline · 1 total
Form 4 Insider Transactions · last 365d
| Date | Insider | Role | Type | Shares | Price | Value |
|---|
| 2026-10-09 |
McMahon John Patrick |
officer |
Sale |
20,000 |
$2.17 |
$43K |
| 2026-10-09 |
McMahon John Patrick |
officer |
Sale |
20,000 |
$2.02 |
$40K |
| 2026-10-08 |
McMahon John Patrick |
officer |
Sale |
20,000 |
$1.95 |
$39K |
| 2026-10-08 |
McMahon John Patrick |
officer |
Sale |
20,000 |
$1.91 |
$38K |
| 2026-09-17 |
Kaplan Andrew Jay |
director |
Buy |
52,910 |
$1.89 |
$100K |
| 2026-09-17 |
Kaplan Andrew Jay |
director |
J |
52,910 |
$1.89 |
$100K |
FINRA Short Interest History
| Settlement | Short Interest | Days to Cover | % Δ vs prior |
|---|
| 2026-10-15 |
224,992 |
2.32 |
-1.3% |
| 2026-09-30 |
227,943 |
2.28 |
+92.9% |
| 2026-09-15 |
118,173 |
2.15 |
+84.9% |
| 2026-08-31 |
63,900 |
1.00 |
-28.3% |
| 2026-08-14 |
89,067 |
1.70 |
+150.0% |
| 2026-07-31 |
35,633 |
1.00 |
-65.9% |
| 2026-07-15 |
104,444 |
1.00 |
+26.4% |
| 2026-06-30 |
82,598 |
1.00 |
+34.9% |
| 2026-06-15 |
61,230 |
1.00 |
+146.5% |
| 2026-05-29 |
24,839 |
1.00 |
-57.7% |
| 2026-05-15 |
58,671 |
1.50 |
-11.9% |
| 2026-04-30 |
66,607 |
1.00 |
-20.3% |
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