BELFA insider buying and SEC filings, explained
Bel Fuse Inc. · CIK 729580
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$0
Insiders who bought
0
Sold (not marked 10b5-1)
$18.1M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Sep 14, 2026 | Sale | Vincent Vellucci (Director) sold 1,000 shares at about $235.15 ($235K). Holdings down 12% to 7,434 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 15, 2026 |
| Sep 2, 2026 | Sale | Vincent Vellucci (Director) sold 393 shares at about $243.61 ($96K). Holdings down 4% to 8,434 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Sep 4, 2026 |
| Aug 12, 2026 | Sale | Peter E. Gilbert (Director) sold 500 shares indirectly (by spouse) at about $292.12 ($146K). Holdings by spouse down 40% to 750 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 14, 2026 |
| Jun 1, 2026 | Sale | Suzanne Kozlovsky (Global Head of People) sold 731 shares at about $271.09 ($198K). Holdings down 6% to 11,552 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 3, 2026 |
| Mar 16, 2026 | Sale | Kenneth Koon Keung Lai (VP of Asia Operations) sold 552 shares at $203.21 ($112K). Holdings down 7% to 7,532 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 17, 2026 |
| Mar 16, 2026 | Sale | Daniel Bernstein (Director and 10% owner) sold 6,667 shares at $203.21 ($1.4M). Holdings down 22% to 23,512 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 17, 2026 |
| Mar 16, 2026 | Sale | Stephen Dawson (Pres. - Power Solutions) sold 3,444 shares at $203.21 ($700K). Holdings down 23% to 11,741 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 17, 2026 |
| Mar 16, 2026 | Sale | Suzanne Kozlovsky (Global Head of People) sold 214 shares at $203.21 ($43K). Holdings down 2% to 12,283 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 17, 2026 |
| Mar 5–6, 2026 | Sale | Peter Bittner (Pres. - Connectivity Solution) sold 22,311 shares between Mar 5 and Mar 6 at about $201.27 ($4.5M). Holdings down 87% to 3,206 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 9, 2026 |
| Feb 25, 2026 | Sale | Farouq Salem Ali Tuweiq (CEO and Director) sold 33,967 shares in 2 share classes at about $234.00 ($7.9M). Holdings of Class B Common Stock down 50% to 30,837 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 26, 2026 |
| Feb 24, 2026 | Sale | Peter E. Gilbert (Director) sold 4,500 shares at about $238.75 ($1.1M). Holdings down 23% to 15,047 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 25, 2026 |
| Dec 12, 2025 | Sale | Lynn Hutkin (CFO) sold 5,000 shares at about $169.68 ($848K). Holdings down 18% to 22,848 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 16, 2025 |
| Nov 17–18, 2025 | Sale | Daniel Bernstein (Director and 10% owner) sold 3,000 shares between Nov 17, 2025 and Nov 18, 2025 at about $143.72 ($431K). Holdings down 9% to 28,750 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 19, 2025 |
| Nov 17–18, 2025 | Sale | Kenneth Koon Keung Lai (VP of Asia Operations) sold 2,500 shares between Nov 17, 2025 and Nov 18, 2025 at about $143.72 ($359K). Holdings down 24% to 7,755 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 19, 2025 |
| Nov 17–18, 2025 | Sale | Joseph Berry (VP, Pres of Magnetic Solutions) sold 527 shares between Nov 17, 2025 and Nov 18, 2025 at about $143.72 ($76K). Holdings down 3% to 17,774 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 19, 2025 |
16 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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