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

DOUGLAS DYNAMICS, INC

PLOW · NYSE · CIK 0001287213 · Industrials · Auto Parts

INSIDER SIGNAL

No active buy signal

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

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

Last qualifying purchase2024-11-01 · Van Genderen Mark · $114.8K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesNone
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
Janik James LDirector
○○
Lauber Sarah CEVP & CFO
○
STURDIVANT DONALD WDirector
○
Nelson Bradley M.Director
○
KRUEGER KENNETH WDirector
○
Bacus Lisa RDirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 2 additional owner(s) remain in Form 4 evidence.

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: 2024-11-01 · Van Genderen Mark.

Recent Form 4 activity

0Purchases
2Sales
19Other Form 4 lines
21SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING0 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
511,737
Previous report
494,017
Avg daily volume
210,756
Days to cover
2.4

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

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

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2024-11-01Van Genderen MarkPurchase (P)Common Stock5,000USD 22.96USD 114,800SEC filing ↗
2023-09-06McCormick Robert LPurchase (P)Common Stock10,000USD 30.71USD 307,100SEC filing ↗
2023-05-10Janik James LPurchase (P)Common Stock6,929USD 26.99USD 187,014SEC filing ↗
2023-05-09Janik James LPurchase (P)Common Stock2,565USD 26.99USD 69,229SEC filing ↗
2023-05-08Janik James LPurchase (P)Common Stock506USD 26.92USD 13,622SEC filing ↗
2020-02-28Lauber Sarah CPurchase (P)Common Stock1,185USD 42.67USD 50,564SEC filing ↗

Form 4 evidence

21 transaction lines in the latest 365-day window; 184 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-01Lauber Sarah CTax withholding (F)Common Stock6,735USD 53.95USD 363,353SEC filing ↗
2026-05-11Janik James LGift (G)Common Stock6,000USD 0.00USD 0SEC filing ↗
2026-04-29STURDIVANT DONALD WAward / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (21 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-07-01Lauber Sarah CTax withholding (F)Common Stock6,735USD 53.95USD 363,353SEC filing ↗
2026-05-11Janik James LGift (G)Common Stock6,000USD 0.00USD 0SEC filing ↗
2026-04-29STURDIVANT DONALD WAward / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
2026-04-29Nelson Bradley M.Award / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
2026-04-29KRUEGER KENNETH WAward / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
2026-04-29Janik James LAward / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
2026-04-29Bacus Lisa RAward / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
2026-04-29Ansberry Jennifer IAward / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
2026-04-29Akolawala JoherAward / grant (A)Common Stock2,737USD 0.00USD 0SEC filing ↗
2026-03-09Van Genderen MarkTax withholding (F)Common Stock4,705USD 44.80USD 210,784SEC filing ↗
2026-03-09Sisulak Jon JSale (S)Common Stock977USD 42.61USD 41,630SEC filing ↗
2026-03-09Lauber Sarah CTax withholding (F)Common Stock5,152USD 44.80USD 230,810SEC filing ↗
2026-03-09Bernauer Christopher ESale (S)Common Stock869USD 42.61USD 37,028SEC filing ↗
2026-02-27Janik James LGift (G)Common Stock2,000USD 0.00USD 0SEC filing ↗
2026-02-17Van Genderen MarkAward / grant (A)Common Stock21,475USD 0.00USD 0SEC filing ↗
2026-02-17Sisulak Jon JAward / grant (A)Common Stock2,023USD 0.00USD 0SEC filing ↗
2026-02-17Lauber Sarah CAward / grant (A)Common Stock9,917USD 0.00USD 0SEC filing ↗
2026-02-17Bernauer Christopher EAward / grant (A)Common Stock4,123USD 0.00USD 0SEC filing ↗
2026-01-02Lauber Sarah CTax withholding (F)Common Stock13,829USD 33.11USD 457,878SEC filing ↗
2025-10-30Nelson Bradley M.Award / grant (A)Common Stock1,928USD 0.00USD 0SEC filing ↗
2025-10-30Ansberry Jennifer IAward / grant (A)Common Stock1,928USD 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 date2026-10-19
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerPLOW
CIK0001287213
SectorIndustrials
IndustryAuto Parts Yahoo Finance
SEC SIC3531 Construction Machinery & Equip
ExchangeNYSE

Data coverage

Local Form 4 history184 transaction lines from 2020-01-31 to 2026-07-01
6 P purchase lines · 53 S sale lines · 125 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.