← United States · Coverage record
US · SEC FORM 4
NATIONAL PRESTO INDUSTRIES INC
NPK · NYSE · CIK 0000080172 · Industrials · Aerospace & Defense
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
1 Form 4 transaction lines observed in the same window
0 sales · 1 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.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
—
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
- 172,800
- Previous report
- 243,733
- Avg daily volume
- 124,225
- Days to cover
- 1.4
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
14 transaction lines in the latest 365-day window; 74 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-04-30 | Morgan Jeffery Alan | Tax withholding (F) | Common stock $1.00 par value | 349 | USD 139.84 | USD 48,804 | SEC filing ↗ |
| 2026-03-17 | Peuse David J | Sale (S) | Common stock $1.00 par value | 500 | USD 140.16 | USD 70,080 | SEC filing ↗ |
| 2026-03-16 | Peuse David J | Tax withholding (F) | Common stock $1.00 par value | 78 | USD 131.58 | USD 10,263 | SEC filing ↗ |
Show recent Form 4 evidence (14 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-04-30 | Morgan Jeffery Alan | Tax withholding (F) | Common stock $1.00 par value | 349 | USD 139.84 | USD 48,804 | SEC filing ↗ |
| 2026-03-17 | Peuse David J | Sale (S) | Common stock $1.00 par value | 500 | USD 140.16 | USD 70,080 | SEC filing ↗ |
| 2026-03-16 | Peuse David J | Tax withholding (F) | Common stock $1.00 par value | 78 | USD 131.58 | USD 10,263 | SEC filing ↗ |
| 2026-03-16 | Morgan Jeffery Alan | Tax withholding (F) | Common stock $1.00 par value | 100 | USD 131.58 | USD 13,158 | SEC filing ↗ |
| 2026-03-16 | MacKenzie John Roderick JR | Tax withholding (F) | Common stock $1.00 par value | 62 | USD 131.58 | USD 8,158 | SEC filing ↗ |
| 2026-03-16 | Frederick Douglas J | Tax withholding (F) | Common stock $1.00 par value | 36 | USD 131.58 | USD 4,737 | SEC filing ↗ |
| 2026-03-11 | LIEBLE RANDY F | Sale (S) | Common stock $1.00 par value | 2,417 | USD 143.97 | USD 347,975 | SEC filing ↗ |
| 2026-01-02 | Peuse David J | Award / grant (A) | Common stock $1.00 par value | 327 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-02 | Morgan Jeffery Alan | Award / grant (A) | Common stock $1.00 par value | 234 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-02 | MacKenzie John Roderick JR | Award / grant (A) | Common stock $1.00 par value | 327 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-02 | Frederick Douglas J | Award / grant (A) | Common stock $1.00 par value | 386 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-02 | Stienessen Joseph G | Award / grant (A) | Common stock $1.00 par value | 100 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-02 | QUINN PATRICK J | Award / grant (A) | Common stock $1.00 par value | 100 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-01-02 | LIEBLE RANDY F | Award / grant (A) | Common stock $1.00 par value | 100 | USD 0.00 | USD 0 | 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 | 2026-10-19 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | NPK |
| CIK | 0000080172 |
| Sector | Industrials |
| Industry | Aerospace & Defense Yahoo Finance |
| SEC SIC | 3480 Ordnance & Accessories, (No Vehicles/Guided Missiles) |
| Exchange | NYSE |
Data coverage
| Local Form 4 history | 74 transaction lines from 2020-01-02 to 2026-04-30 0 P purchase lines · 4 S sale lines · 70 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.