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

SONO TEK CORP

SOTK · Nasdaq · CIK 0000806172 · Technology · Scientific & Technical Instruments

INSIDER SIGNAL

No active buy signal

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

39 Form 4 transaction lines observed in the same window
4 sales · 35 option, withholding, award, gift or other lines

Last qualifying purchase2026-03-05 · Lawal Adeniyi · $9.9K

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
Bagley Stephen JamesCFO
▼▼▼○○○○
Booth Brian LewisVice President
○○○
COCCIO CHRISTOPHER LDirector
▼○○
HARSHBARGER R STEPHENCEO
○○
Cichetti ChristopherCOO
○○
RIEMER JOSEPHDirector
○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 1 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: 2026-03-05 · Lawal Adeniyi.

Recent Form 4 activity

1Purchases
8Sales
35Other Form 4 lines
16SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING4 sale line(s) · context only
OTHER35 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
37,185
Previous report
64,730
Avg daily volume
122,169
Days to cover
≤ 1.0

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
2026-03-05Lawal AdeniyiPurchase (P)Common Stock2,400USD 4.12USD 9,888SEC filing ↗
2022-02-09COCCIO CHRISTOPHER LPurchase (P)Sono-Tek Corp Common Stock1,000USD 5.12USD 5,120SEC filing ↗
2022-02-08RIEMER JOSEPHPurchase (P)Sono-Tek Corp Common Stock6,000USD 5.21USD 31,264SEC filing ↗
2022-02-08O'DONNELL CAROL APurchase (P)Sono-Tek Corp Common Stock2,000USD 5.22USD 10,431SEC filing ↗

Form 4 evidence

44 transaction lines in the latest 365-day window; 249 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-14Kuha Maria TOption exercise / conversion (M)SOTK Common Stock14,860USD 3.84USD 56,993SEC filing ↗
2026-10-14Kuha Maria TTax withholding (F)SOTK Common Stock8,005USD 7.12USD 56,996SEC filing ↗
2026-10-12RIEMER JOSEPHOption exercise / conversion (M)SOTK Common Stock22,451USD 3.93USD 88,201SEC filing ↗
Show recent Form 4 evidence (24 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-14Kuha Maria TOption exercise / conversion (M)SOTK Common Stock14,860USD 3.84USD 56,993SEC filing ↗
2026-10-14Kuha Maria TTax withholding (F)SOTK Common Stock8,005USD 7.12USD 56,996SEC filing ↗
2026-10-12RIEMER JOSEPHOption exercise / conversion (M)SOTK Common Stock22,451USD 3.93USD 88,201SEC filing ↗
2026-10-12RIEMER JOSEPHTax withholding (F)SOTK Common Stock10,631USD 7.08USD 75,267SEC filing ↗
2026-10-12Bagley Stephen JamesOption exercise / conversion (M)SonoTek Common Stock7,722USD 4.12USD 31,815SEC filing ↗
2026-10-12Bagley Stephen JamesTax withholding (F)SonoTek Common Stock4,494USD 7.08USD 31,818SEC filing ↗
2026-10-08Cichetti ChristopherOption exercise / conversion (M)Sono-Tek Common Stock9,978USD 3.25USD 32,428SEC filing ↗
2026-10-08Cichetti ChristopherTax withholding (F)Sono-Tek Common Stock4,804USD 6.75USD 32,427SEC filing ↗
2026-10-06HARSHBARGER R STEPHENOption exercise / conversion (M)Sono-Tek Common Stock13,171USD 3.25USD 42,806SEC filing ↗
2026-10-06HARSHBARGER R STEPHENTax withholding (F)Sono-Tek Common Stock6,286USD 6.81USD 42,808SEC filing ↗
2026-10-06Booth Brian LewisOption exercise / conversion (M)Sono-Tek Common Stock5,320USD 3.58USD 19,053SEC filing ↗
2026-10-06Booth Brian LewisTax withholding (F)Sono-Tek Common Stock2,798USD 6.81USD 19,054SEC filing ↗
2026-10-05COCCIO CHRISTOPHER LOption exercise / conversion (M)SOTK Common Stock13,158USD 3.25USD 42,764SEC filing ↗
2026-10-05COCCIO CHRISTOPHER LTax withholding (F)SOTK Common Stock6,897USD 6.20USD 42,761SEC filing ↗
2026-10-05Bagley Stephen JamesOption exercise / conversion (M)SonoTek Common Stock5,488USD 3.25USD 17,836SEC filing ↗
2026-10-05Bagley Stephen JamesTax withholding (F)SonoTek Common Stock2,877USD 6.20USD 17,837SEC filing ↗
2026-07-30Bagley Stephen JamesSale (S)SonoTek Common Stock8,346USD 5.13USD 42,815SEC filing ↗
2026-07-27Bagley Stephen JamesSale (S)SonoTek Common Stock1,200USD 5.08USD 6,096SEC filing ↗
2026-07-23Bagley Stephen JamesSale (S)Common Stock3,454USD 5.43USD 18,755SEC filing ↗
2026-07-21COCCIO CHRISTOPHER LSale (S)SOTK Common Stock17,000USD 5.38USD 91,460SEC filing ↗
2026-05-01Booth Brian LewisOption exercise / conversion (M)Sono-Tek Corp Common Stock7,555USD 4.79USD 36,158SEC filing ↗
2026-03-05Lawal AdeniyiPurchase (P)Common Stock2,400USD 4.12USD 9,888SEC filing ↗
2025-10-23COCCIO CHRISTOPHER LSale (S)Common Stock12,320USD 4.78USD 58,890SEC filing ↗
2025-10-21COCCIO CHRISTOPHER LSale (S)Common Stock4,212USD 4.66USD 19,609SEC 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 · —
TickerSOTK
CIK0000806172
SectorTechnology
IndustryScientific & Technical Instruments Yahoo Finance
SEC SIC3559 Special Industry Machinery, NEC
ExchangeNasdaq

Data coverage

Local Form 4 history249 transaction lines from 2020-01-01 to 2026-10-14
7 P purchase lines · 142 S sale lines · 100 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.