Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

NWPX Infrastructure, Inc.

NWPX · Nasdaq · CIK 0001001385 · Basic Materials · Steel

INSIDER SIGNAL

No active buy signal

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

34 Form 4 transaction lines observed in the same window
25 sales · 9 option, withholding, award, gift or other lines

Last qualifying purchase2020-03-11 · FRANSON MICHAEL C · $25.3K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
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.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
LARSON KEITH RDirector
○▼▼▼▼▼▼▼▼▼▼
MONTROSS SCOTT JPresident & CEO
▼▼▼▼▼
Wilkins AaronCFO
▼▼▼▼
ROMAN RICHARD ADirector
○▼○▼
FRANSON MICHAEL CDirector
○▼○
Wray MichaelExecutive Vice President
▼○
● Purchase▼ Sale○ Other

Showing the six most active owners; 4 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

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2020-03-11 · FRANSON MICHAEL C.

Recent Form 4 activity

0Purchases
43Sales
45Other Form 4 lines
52SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING25 sale line(s) · context only
OTHER9 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
742,345
Previous report
726,433
Avg daily volume
127,106
Days to cover
5.8

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

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2020-03-11FRANSON MICHAEL CPurchase (P)Common Stock1,000USD 25.32USD 25,320SEC filing ↗

Form 4 evidence

88 transaction lines in the latest 365-day window; 579 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15ROMAN RICHARD ASale (S)Common Stock4,000USD 96.84USD 387,354SEC filing ↗
2026-10-05LARSON KEITH RSale (S)Common Stock250USD 106.48USD 26,620SEC filing ↗
2026-10-02Stokes EricSale (S)Common Stock12,631USD 105.86USD 1,337,176SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-15ROMAN RICHARD ASale (S)Common Stock4,000USD 96.84USD 387,354SEC filing ↗
2026-10-05LARSON KEITH RSale (S)Common Stock250USD 106.48USD 26,620SEC filing ↗
2026-10-02Stokes EricSale (S)Common Stock12,631USD 105.86USD 1,337,176SEC filing ↗
2026-10-01Stokes EricSale (S)Common Stock12,353USD 103.38USD 1,277,047SEC filing ↗
2026-09-28LARSON KEITH RSale (S)Common Stock1,000USD 102.20USD 102,200SEC filing ↗
2026-09-21Wilkins AaronSale (S)Common Stock20USD 101.93USD 2,039SEC filing ↗
2026-09-21LARSON KEITH RSale (S)Common Stock1,000USD 102.31USD 102,310SEC filing ↗
2026-09-14Wilkins AaronSale (S)Common Stock1,950USD 100.68USD 196,326SEC filing ↗
2026-09-14ROMAN RICHARD AGift (G)Common Stock1,000USD 0.00USD 0SEC filing ↗
2026-09-14LARSON KEITH RSale (S)Common Stock1,000USD 101.12USD 101,120SEC filing ↗
2026-09-10FRANSON MICHAEL CGift (G)Common Stock100USD 0.00USD 0SEC filing ↗
2026-09-09FRANSON MICHAEL CSale (S)Common Stock3,500USD 105.30USD 368,550SEC filing ↗
2026-09-08Wilkins AaronSale (S)Common Stock1,500USD 106.52USD 159,780SEC filing ↗
2026-09-08ROMAN RICHARD ASale (S)Common Stock4,000USD 105.72USD 422,880SEC filing ↗
2026-09-08LARSON KEITH RSale (S)Common Stock1,000USD 105.87USD 105,870SEC filing ↗
2026-09-03LARSON KEITH RSale (S)Common Stock4USD 110.79USD 443SEC filing ↗
2026-09-02LARSON KEITH RSale (S)Common Stock74USD 110.26USD 8,159SEC filing ↗
2026-08-31MONTROSS SCOTT JSale (S)Common Stock1,227USD 110.58USD 135,682SEC filing ↗
2026-08-31LARSON KEITH RSale (S)Common Stock1,172USD 110.04USD 128,967SEC filing ↗
2026-08-27Wray MichaelGift (G)Common Stock600USD 0.00USD 0SEC filing ↗
2026-08-26Wray MichaelSale (S)Common Stock4,500USD 110.94USD 499,230SEC filing ↗
2026-08-24MONTROSS SCOTT JSale (S)Common Stock2,500USD 109.37USD 273,425SEC filing ↗
2026-08-24LARSON KEITH RSale (S)Common Stock1,250USD 110.32USD 137,900SEC filing ↗
2026-08-17MONTROSS SCOTT JSale (S)Common Stock2,500USD 115.13USD 287,825SEC filing ↗
2026-08-17LARSON KEITH RSale (S)Common Stock1,250USD 115.86USD 144,825SEC filing ↗
2026-08-10Wilkins AaronSale (S)Common Stock428USD 120.00USD 51,360SEC filing ↗
2026-08-10MONTROSS SCOTT JSale (S)Common Stock2,500USD 118.74USD 296,850SEC filing ↗
2026-08-04MONTROSS SCOTT JSale (S)Common Stock2,500USD 128.62USD 321,550SEC filing ↗
2026-06-10Lockridge IrmaAward / grant (A)Common Stock899USD 122.31USD 109,957SEC filing ↗
2026-06-10ROMAN RICHARD AAward / grant (A)Common Stock899USD 122.31USD 109,957SEC 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 date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerNWPX
CIK0001001385
SectorBasic Materials
IndustrySteel Yahoo Finance
SEC SIC3317 Steel Pipe & Tubes
ExchangeNasdaq

Data coverage

Local Form 4 history579 transaction lines from 2020-01-15 to 2026-10-15
1 P purchase lines · 144 S sale lines · 434 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.