Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-19 · Built: 2026-10-19 · 中文

← United States · Coverage record

US · SEC FORM 4

NAPCO SECURITY TECHNOLOGIES, INC

NSSC · Nasdaq · CIK 0000069633 · Industrials · Security & Protection Services

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

10 Form 4 transaction lines observed in the same window
4 sales · 6 option, withholding, award, gift or other lines

Last qualifying purchaseNo qualifying purchase is present in the local Form 4 history.

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesModerate
Buy signal statusInactive
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.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

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.

AprMayJunJulAugSepOct
Soloway Donna AnneDirector
○▼▼
SOLOWAY RICHARDFounder and Executive Chairman
▼▼
● Purchase▼ Sale○ Other

—

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot.—

Recent Form 4 activity

0Purchases
8Sales
18Other Form 4 lines
11SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING4 sale line(s) · context only
OTHER6 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

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
2,351,553
Previous report
2,592,809
Avg daily volume
356,449
Days to cover
6.6

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; 179 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-27Soloway Donna AnneSale (S)Common Stock20,962USD 34.62USD 725,704SEC filing ↗
2026-08-27SOLOWAY RICHARDSale (S)Common Stock379,529USD 34.50USD 13,093,750SEC filing ↗
2026-08-26Soloway Donna AnneSale (S)Common Stock28,000USD 35.98USD 1,007,440SEC filing ↗
Show recent Form 4 evidence (19 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-27Soloway Donna AnneSale (S)Common Stock20,962USD 34.62USD 725,704SEC filing ↗
2026-08-27SOLOWAY RICHARDSale (S)Common Stock379,529USD 34.50USD 13,093,750SEC filing ↗
2026-08-26Soloway Donna AnneSale (S)Common Stock28,000USD 35.98USD 1,007,440SEC filing ↗
2026-08-26SOLOWAY RICHARDSale (S)Common Stock95,471USD 35.93USD 3,430,273SEC filing ↗
2026-05-18Soloway Donna AnneOption exercise / conversion (M)Common Stock41,100USD 15.26USD 627,280SEC filing ↗
2026-03-17Spinelli Stephen MOption exercise / conversion (M)Common Stock13,972USD 10.02USD 139,999SEC filing ↗
2026-03-17Spinelli Stephen MTax withholding (F)Common Stock3,212USD 43.59USD 140,011SEC filing ↗
2026-03-03SOLOWAY RICHARDSale (S)Common Stock55,318USD 43.22USD 2,390,844SEC filing ↗
2026-03-02SOLOWAY RICHARDSale (S)Common Stock129,682USD 44.99USD 5,834,393SEC filing ↗
2026-02-26CARRIERI MICHAELOption exercise / conversion (M)Common Stock10,000USD 22.50USD 225,000SEC filing ↗
2026-02-26CARRIERI MICHAELTax withholding (F)Common Stock6,651USD 47.23USD 314,127SEC filing ↗
2026-02-19BUCHEL KEVIN SOption exercise / conversion (M)Common Stock50,000USD 22.50USD 1,125,000SEC filing ↗
2026-02-19BUCHEL KEVIN SOption exercise / conversion (M)Common Stock50,000USD 22.50USD 1,125,000SEC filing ↗
2026-02-19BUCHEL KEVIN STax withholding (F)Common Stock33,560USD 44.98USD 1,509,529SEC filing ↗
2026-02-19BUCHEL KEVIN STax withholding (F)Common Stock33,560USD 44.98USD 1,509,529SEC filing ↗
2026-02-10SOLOWAY RICHARDOption exercise / conversion (M)Common Stock108,000USD 22.83USD 2,465,520SEC filing ↗
2026-02-10SOLOWAY RICHARDTax withholding (F)Common Stock82,052USD 42.63USD 3,497,877SEC filing ↗
2026-02-05SOLOWAY RICHARDSale (S)Common Stock150,000USD 42.74USD 6,411,000SEC filing ↗
2025-11-17Spinelli Stephen MSale (S)Common Stock19,000USD 40.25USD 764,750SEC 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 date2026-10-19
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerNSSC
CIK0000069633
SectorIndustrials
IndustrySecurity & Protection Services Yahoo Finance
SEC SIC3669 Communications Equipment, NEC
ExchangeNasdaq

Data coverage

Local Form 4 history179 transaction lines from 2020-02-06 to 2026-08-27
0 P purchase lines · 72 S sale lines · 107 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-19. Mapping status is an audit field and does not erase SEC filing evidence.