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

BEL FUSE INC /NJ

BELFB · Nasdaq · CIK 0000729580 · Technology · Electronic Components

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
9 sales · 0 option, withholding, award, gift or other lines

Last qualifying purchase2023-12-15 · Tuweiq Farouq Salem Ali · $12.4K

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.

Insider activity timeline

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

AprMayJunJulAugSepOct
Vellucci VincentDirector
▼▼
Kozlovsky SuzanneGlobal Head of People
▼
GILBERT PETER EDirector
▼
● Purchase▼ Sale○ Other

—

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: 2023-12-15 · Tuweiq Farouq Salem Ali.

Recent Form 4 activity

0Purchases
37Sales
17Other Form 4 lines
27SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING9 sale line(s) · context only
OTHER0 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 provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
-12.8%
3M
-21.9%
6M
-18.3%
12M
+37.8%

Volatility & liquidity

Volatility
50.6%
Beta
—
Avg daily value
USD 38.4M

Valuation

Market cap
—
P/E
—

Fundamentals

Profit margin
11.0%
ROE
17.4%
Industry
Electronic Components

Market data

Price data up to: 2026-10-16 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Profit margin, ROE · Fiscal year ended: 2025-12-31 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
793,740
Previous report
721,083
Avg daily volume
148,656
Days to cover
5.3

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
2023-12-15Tuweiq Farouq Salem AliPurchase (P)Class A Common Stock200USD 62.17USD 12,434SEC filing ↗
2023-09-14Tuweiq Farouq Salem AliPurchase (P)Class A Common Stock300USD 45.94USD 13,782SEC filing ↗
2023-09-01Vellucci VincentPurchase (P)Class B Common Stock1,000USD 52.25USD 52,250SEC filing ↗
2023-06-15Tuweiq Farouq Salem AliPurchase (P)Class A Common Stock200USD 56.10USD 11,220SEC filing ↗
2023-03-13Tuweiq Farouq Salem AliPurchase (P)Class A Common Stock400USD 32.50USD 13,000SEC filing ↗
2022-12-15Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock250USD 33.60USD 8,400SEC filing ↗
2022-09-06Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock500USD 25.75USD 12,875SEC filing ↗
2022-06-13Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock250USD 15.50USD 3,875SEC filing ↗
2022-03-11Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock1,000USD 17.77USD 17,770SEC filing ↗
2021-12-15Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock500USD 11.85USD 5,925SEC filing ↗
2021-12-14Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock1,000USD 11.97USD 11,970SEC filing ↗
2021-11-30Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock500USD 12.19USD 6,095SEC filing ↗
2021-11-30Tuweiq Farouq Salem AliPurchase (P)Class A Common Stock393USD 13.65USD 5,364SEC filing ↗
2021-11-26Tuweiq Farouq Salem AliPurchase (P)Class B Common Stock500USD 12.25USD 6,125SEC filing ↗
2021-11-24Tuweiq Farouq Salem AliPurchase (P)Class A Common Stock107USD 13.90USD 1,487SEC filing ↗

Form 4 evidence

54 transaction lines in the latest 365-day window; 164 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-14Vellucci VincentSale (S)Class B Common Stock1,000USD 235.15USD 235,150SEC filing ↗
2026-09-02Vellucci VincentSale (S)Class B Common Stock393USD 243.61USD 95,739SEC filing ↗
2026-08-12GILBERT PETER ESale (S)Class B Common Stock500USD 292.12USD 146,060SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-14Vellucci VincentSale (S)Class B Common Stock1,000USD 235.15USD 235,150SEC filing ↗
2026-09-02Vellucci VincentSale (S)Class B Common Stock393USD 243.61USD 95,739SEC filing ↗
2026-08-12GILBERT PETER ESale (S)Class B Common Stock500USD 292.12USD 146,060SEC filing ↗
2026-06-01Kozlovsky SuzanneSale (S)Class B Common Stock731USD 271.09USD 198,165SEC filing ↗
2026-03-16Lai Kenneth Koon KeungSale (S)Class B Common Stock552USD 203.21USD 112,172SEC filing ↗
2026-03-16Kozlovsky SuzanneSale (S)Class B Common Stock214USD 203.21USD 43,487SEC filing ↗
2026-03-16Dawson StephenSale (S)Class B Common Stock3,444USD 203.21USD 699,855SEC filing ↗
2026-03-16BERNSTEIN DANIELSale (S)Class B Common Stock6,667USD 203.21USD 1,354,801SEC filing ↗
2026-03-15Vellucci VincentAward / grant (A)Class B Common Stock1,030USD 0.00USD 0SEC filing ↗
2026-03-15Valletta DavidAward / grant (A)Class B Common Stock1,965USD 0.00USD 0SEC filing ↗
2026-03-15Tuweiq Farouq Salem AliAward / grant (A)Class B Common Stock5,081USD 0.00USD 0SEC filing ↗
2026-03-15Smith RitaAward / grant (A)Class B Common Stock1,030USD 0.00USD 0SEC filing ↗
2026-03-15Smelker ThomasI (I)Class A Common Stock62USD 0.00USD 0SEC filing ↗
2026-03-15Smelker ThomasAward / grant (A)Class B Common Stock3,049USD 0.00USD 0SEC filing ↗
2026-03-15SEGALL MARK BAward / grant (A)Class B Common Stock1,030USD 0.00USD 0SEC filing ↗
2026-03-15Lai Kenneth Koon KeungAward / grant (A)Class B Common Stock329USD 0.00USD 0SEC filing ↗
2026-03-15Kozlovsky SuzanneAward / grant (A)Class B Common Stock437USD 0.00USD 0SEC filing ↗
2026-03-15Hutkin LynnAward / grant (A)Class B Common Stock695USD 0.00USD 0SEC filing ↗
2026-03-15GILBERT PETER EAward / grant (A)Class B Common Stock1,965USD 0.00USD 0SEC filing ↗
2026-03-15Dawson StephenAward / grant (A)Class B Common Stock920USD 0.00USD 0SEC filing ↗
2026-03-15Bittner PeterAward / grant (A)Class B Common Stock762USD 0.00USD 0SEC filing ↗
2026-03-15Berry JosephAward / grant (A)Class B Common Stock419USD 0.00USD 0SEC filing ↗
2026-03-15BERNSTEIN DANIELAward / grant (A)Class B Common Stock1,429USD 0.00USD 0SEC filing ↗
2026-03-06Bittner PeterSale (S)Class B Common Stock12,311USD 195.00USD 2,400,645SEC filing ↗
2026-03-05Bittner PeterSale (S)Class B Common Stock10,000USD 209.00USD 2,090,000SEC filing ↗
2026-02-25Tuweiq Farouq Salem AliSale (S)Class B Common Stock30,867USD 235.79USD 7,278,203SEC filing ↗
2026-02-25Tuweiq Farouq Salem AliSale (S)Class A Common Stock3,100USD 216.11USD 669,951SEC filing ↗
2026-02-24GILBERT PETER ESale (S)Class B Common Stock4,500USD 238.75USD 1,074,375SEC filing ↗
2026-02-23SEGALL MARK BGift (G)Class B Common Stock300USD 0.00USD 0SEC filing ↗
2025-12-12Hutkin LynnSale (S)Class B Common Stock5,000USD 169.68USD 848,389SEC 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 · —
TickerBELFB
CIK0000729580
SectorTechnology
IndustryElectronic Components Yahoo Finance
SEC SIC3677 Electronic Coils, Transformers & Other Inductors
ExchangeNasdaq

Data coverage

Local Form 4 history164 transaction lines from 2020-02-28 to 2026-09-14
26 P purchase lines · 65 S sale lines · 73 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.