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

LOUISIANA-PACIFIC CORP

LPX · NYSE · CIK 0000060519 · Basic Materials · Building Products & Equipment

INSIDER SIGNAL

No active buy signal

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

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

Last qualifying purchase2026-02-19 · GRASBERGER F NICHOLAS III · $1.7M

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
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
Bruce Lizanne MDirector
○○▼
Bayardo Jose ADirector
○
Silberhorn Ty RDirector
○
Ribieras JeanMichelDirector
○
Macadam Stephen E.Director
○
GRASBERGER F NICHOLAS IIIDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 3 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: 2026-02-19 · GRASBERGER F NICHOLAS III.

Recent Form 4 activity

2Purchases
28Sales
50Other Form 4 lines
39SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING1 sale line(s) · context only
OTHER10 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
9,407,567
Previous report
8,214,663
Avg daily volume
1,093,986
Days to cover
8.6

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

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

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-02-19GRASBERGER F NICHOLAS IIIPurchase (P)Common Stock20,000USD 85.49USD 1,709,800SEC filing ↗
2025-11-07Macadam Stephen E.Purchase (P)Common Stock3,200USD 78.06USD 249,792SEC filing ↗
2022-08-29Haughie AlanPurchase (P)Common Stock5,382USD 55.78USD 300,208SEC filing ↗
2021-11-16Southern William BradleyPurchase (P)Common Stock5,350USD 67.24USD 359,734SEC filing ↗
2021-08-09Macadam Stephen E.Purchase (P)Common Stock1,850USD 56.24USD 104,052SEC filing ↗
2021-08-05Haughie AlanPurchase (P)Common Stock12,470USD 55.94USD 697,600SEC filing ↗
2020-11-06Macadam Stephen E.Purchase (P)Common Stock6,400USD 31.33USD 200,512SEC filing ↗
2020-05-07Macadam Stephen E.Purchase (P)Common Stock5,000USD 20.96USD 104,800SEC filing ↗
2020-02-28Macadam Stephen E.Purchase (P)Common Stock3,600USD 27.46USD 98,856SEC filing ↗

Form 4 evidence

80 transaction lines in the latest 365-day window; 436 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-01Howald AaronAward / grant (A)Common Stock9,083USD 0.00USD 0SEC filing ↗
2026-07-01Hamill AnthonyTax withholding (F)Common Stock1,064USD 78.66USD 83,694SEC filing ↗
2026-06-15Bruce Lizanne MSale (S)Common Stock1,141USD 78.21USD 89,238SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-01Howald AaronAward / grant (A)Common Stock9,083USD 0.00USD 0SEC filing ↗
2026-07-01Hamill AnthonyTax withholding (F)Common Stock1,064USD 78.66USD 83,694SEC filing ↗
2026-06-15Bruce Lizanne MSale (S)Common Stock1,141USD 78.21USD 89,238SEC filing ↗
2026-06-15Bruce Lizanne MJ (J)Common Stock378USD 0.00USD 0SEC filing ↗
2026-05-08Silberhorn Ty RAward / grant (A)Common Stock1,863USD 0.00USD 0SEC filing ↗
2026-05-08Ribieras JeanMichelAward / grant (A)Common Stock1,863USD 0.00USD 0SEC filing ↗
2026-05-08Macadam Stephen E.Award / grant (A)Common Stock1,863USD 0.00USD 0SEC filing ↗
2026-05-08GRASBERGER F NICHOLAS IIIAward / grant (A)Common Stock1,863USD 0.00USD 0SEC filing ↗
2026-05-08Bruce Lizanne MAward / grant (A)Common Stock1,863USD 0.00USD 0SEC filing ↗
2026-05-08Bayardo Jose AAward / grant (A)Common Stock1,863USD 0.00USD 0SEC filing ↗
2026-05-08BARRETT KELLY HEFNERAward / grant (A)Common Stock1,863USD 0.00USD 0SEC filing ↗
2026-04-07Ringblom Jason PaulTax withholding (F)Common Stock1,198USD 69.89USD 83,728SEC filing ↗
2026-03-10Bruce Lizanne MSale (S)Common Stock1,300USD 78.59USD 102,167SEC filing ↗
2026-02-19GRASBERGER F NICHOLAS IIIPurchase (P)Common Stock20,000USD 85.49USD 1,709,800SEC filing ↗
2026-02-18Southern William BradleySale (S)Common Stock14,166USD 87.85USD 1,244,430SEC filing ↗
2026-02-17Southern William BradleySale (S)Common Stock14,166USD 89.29USD 1,264,888SEC filing ↗
2026-02-13Southern William BradleyTax withholding (F)Common Stock2,361USD 93.62USD 221,037SEC filing ↗
2026-02-13Sichling Craig MTax withholding (F)Common Stock173USD 93.62USD 16,196SEC filing ↗
2026-02-13Ringblom Jason PaulTax withholding (F)Common Stock709USD 93.62USD 66,377SEC filing ↗
2026-02-13Haughie AlanTax withholding (F)Common Stock887USD 93.62USD 83,041SEC filing ↗
2026-02-13Davis Leslie ETax withholding (F)Common Stock115USD 93.62USD 10,766SEC filing ↗
2026-02-13Daniel Nicole CTax withholding (F)Common Stock592USD 93.62USD 55,423SEC filing ↗
2026-02-12Southern William BradleyTax withholding (F)Common Stock16,475USD 93.89USD 1,546,838SEC filing ↗
2026-02-12Southern William BradleyAward / grant (A)Common Stock41,852USD 0.00USD 0SEC filing ↗
2026-02-12Sichling Craig MTax withholding (F)Common Stock691USD 93.89USD 64,878SEC filing ↗
2026-02-12Sichling Craig MAward / grant (A)Common Stock5,863USD 0.00USD 0SEC filing ↗
2026-02-12Ringblom Jason PaulTax withholding (F)Common Stock3,019USD 93.89USD 283,454SEC filing ↗
2026-02-12Ringblom Jason PaulAward / grant (A)Common Stock26,843USD 0.00USD 0SEC filing ↗
2026-02-12Haughie AlanTax withholding (F)Common Stock3,225USD 93.89USD 302,795SEC filing ↗
2026-02-12Haughie AlanAward / grant (A)Common Stock16,184USD 0.00USD 0SEC 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 · —
TickerLPX
CIK0000060519
SectorBasic Materials
IndustryBuilding Products & Equipment Yahoo Finance
SEC SIC2400 Lumber & Wood Products (No Furniture)
ExchangeNYSE

Data coverage

Local Form 4 history436 transaction lines from 2020-02-03 to 2026-09-01
11 P purchase lines · 64 S sale lines · 361 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.