Bel Fuse Inc
BELFA- Exchange
- Nasdaq
- Industry
- Electronic Coils, Transformers & Other Inductors
- SEC CIK
- 0000729580
In the last 90 days, Bel Fuse Inc insiders filed 0 open-market purchases and 3 sales; 109 institutions reported holding it in 13F filings for Q2 2026, worth $393.9M in total; no superinvestor holds it.
Other share classesBELFB
Key figures
- Insider buysOpen market, last 90 days
- 0
- Insider sellsLast 90 days, $476.9K in total
- 3
- 13F holdersQ2 2026, +17 vs. previous quarter
- 109
- 13F valueReported value at the end of Q2 2026
- $393.9M
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Superinvestors holding BELFA, Q2 2026
No superinvestor reported holding BELFA at the end of Q2 2026.
Latest insider trades
Open-market purchases and sales by Bel Fuse Inc insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 15, 2026 (view filing)2:54 PM ET | Sep 14 | 1 day | Vellucci VincentDirector | SSaleClass B Common Stock | −1.00K | $235.15 | −$235.2K | −11.9%7.43K after | |
| Sep 4, 2026 (view filing)11:22 AM ET | Sep 2 | 2 days | Vellucci VincentDirector | SSaleClass B Common Stock | −393 | $243.61 | −$95.7K | −4.5%8.43K after | |
| Aug 14, 2026 (view filing)10:45 AM ET | Aug 12 | 2 days | Gilbert Peter EDirector | SSaleClass B Common Stock | −500 | $292.12 | −$146.1K | −40.0%750 after | |
| Jun 3, 2026 (view filing) | Jun 1 | 2 days | Kozlovsky SuzanneGlobal Head of People | SSaleClass B Common Stock | −731 | $271.09 | −$198.2K | −6.0%11.6K after | 6 lots |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Lai Kenneth Koon KeungVP of Asia Operations | SSaleClass B Common Stock | −552 | $203.21 | −$112.2K | −6.8%7.53K after | |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Bernstein DanielDirector, 10% Owner | SSaleClass B Common Stock | −6.67K | $203.21 | −$1.35M | −22.1%23.5K after | |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Dawson StephenPres. - Power Solutions | SSaleClass B Common Stock | −3.44K | $203.21 | −$699.9K | −22.7%11.7K after | |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Kozlovsky SuzanneGlobal Head of People | SSaleClass B Common Stock | −214 | $203.21 | −$43.5K | −1.7%12.3K after | |
| Mar 9, 2026 (view filing) | Mar 5-6 | 4 days | Bittner Peter G. IIIPres. - Connectivity Solution | SSaleClass B Common Stock | −22.3K | $201.27 | −$4.49M | −87.4%3.21K after | 2 lots |
| Feb 26, 2026 (view filing) | Feb 25 | 1 day | Tuweiq Farouq Salem AliPresident and CEO | SSaleClass A Common Stock | −3.10K | $216.11 | −$670.0K | −100.0%0 after | 3 lots |
Top 10 13F holders, Q2 2026
The largest institutional positions in Bel Fuse Inc at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Brown Advisory Inc | 125,953 | $36.7M | 0.06% | −8,451−6.3% | Reduced |
| Mangrove Partners | 104,706 | $30.5M | 2.00% | +103,430+8,105.8% | Added |
| BlackRock, Inc. | 100,164 | $29.2M | 0.00% | +8,987+9.9% | Added |
| FMR LLC | 70,155 | $20.4M | 0.00% | −7,383−9.5% | Reduced |
| Renaissance Technologies LLC | 65,553 | $19.1M | 0.03% | −2,700−4.0% | Reduced |
| Gabelli Funds LLC | 63,300 | $18.4M | 0.12% | −300−0.5% | Reduced |
| Vanguard Capital Management LLC | 58,582 | $17.1M | 0.00% | +13,071+28.7% | Added |
| Vanguard Portfolio Management LLC | 57,786 | $16.8M | 0.00% | +11,491+24.8% | Added |
| Logan Stone Capital, LLC | 54,020 | $15.7M | 3.32% | +54,020 | New |
| Gamco Investors, Inc. Et Al | 53,000 | $15.4M | 0.14% | −200−0.4% | Reduced |