Bel Fuse Inc
BELFB- 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; 276 institutions reported holding it in 13F filings for Q2 2026, worth $4.18B in total; no superinvestor holds it.
Other share classesBELFA
Holders of 5% or more of BELFB
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Bel Fuse Inc, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Price T Rowe Associates Inc | 13G | 7.90%834.3K shares | New | Feb 17, 20261 filing | Feb 17, 2026 | SEC |
| Janus Henderson Group PLC | 13G/A | 7.20%760.1K shares | +1.30 ppfrom 5.90% | Feb 17, 20262 filings | May 15, 2026 | SEC |
| FMR LLC | 13G | 5.80%610.4K shares | New | Nov 5, 20251 filing | Nov 5, 2025 | SEC |
| T. Rowe Price Investment Management, Inc. | 13G | 5.40%572.9K shares | New | May 15, 20261 filing | May 15, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.40%570.2K shares | New | Apr 29, 20261 filing | Apr 29, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
8 Schedule 13D and 13G filings on Bel Fuse Inc, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 15, 202612:36 PM ET | Janus Henderson Group PLC | 13G/A | 7.20%760.1K shares | +1.30 ppfrom 5.90% | Mar 31, 2026 | SEC |
| May 15, 202610:06 AM ET | T. Rowe Price Investment Management, Inc. | 13G | 5.40%572.9K shares | New | Mar 31, 2026 | SEC |
| Apr 29, 20265:06 PM ET | Vanguard Capital Management LLC | 13G | 5.40%570.2K shares | New | Mar 31, 2026 | SEC |
| Mar 26, 20264:09 PM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −8.69 ppfrom 8.69%Below 5% | Mar 13, 2026 | SEC |
| Feb 17, 202612:43 PM ET | Janus Henderson Group PLC | 13G | 5.90%619.3K shares | New | Dec 31, 2025 | SEC |
| Feb 17, 202610:26 AM ET | Price T Rowe Associates Inc | 13G | 7.90%834.3K shares | New | Dec 31, 2025 | SEC |
| Nov 5, 202511:26 AM ET | FMR LLCand 1 other | 13G | 5.80%610.4K shares | New | Sep 30, 2025 | SEC |
| Dec 20, 20244:56 PM ET | Vanguard Group Inc | 13G/A | 8.69%907.0K shares | – | Sep 30, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Bel Fuse Inc shares.
No Form 144 notices for Bel Fuse Inc are on file.