BELFA — BEL FUSE INC
Public company
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying BELFA?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 3 tracked investors who changed their BELFA position last quarter, 1 bought and 2 sold (33% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 55/100 in a Squeeze regime).
- +1 tracked investor added or increased positions last quarter (Izzy Englander)
- +3 tracked investors reported holding BELFA at their latest filing
- +Macro Health is 55/100 in a Squeeze regime — historically acceptable for this sectorsource
- −2 tracked investors reduced or exited last quarter (2 reduced, 0 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 8/20/2026.
About BEL FUSE INC (BELFA)
BEL FUSE INC (BELFA) appears in the most recent 13F filings of 3 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $15M. Across recent filings, tracked investors recorded 7 new positions, 1 increased, 6 reduced, and 2 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in BELFA
How many top investors track BELFA
A small number of top investors own this.
BELFA Ownership Composition
How BEL FUSE INC is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant100.0%
Tracked investors currently reporting BELFA
1 tracked investor has since exited this position — listed separately below.
- Ken GriffinJun 30, 2026Citadel AdvisorsShares45.3KValue$15.1M% Portfolio0.00%
- Izzy EnglanderJun 30, 2026Millennium ManagementShares4.6KValue$1.5M% Portfolio0.00%
- Steve CohenJun 30, 2026Point72 Asset ManagementShares4.5KValue$1.3M% Portfolio0.00%
Previously held BELFA
These investors reported BELFA in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Paul Tudor Jones | Tudor Investment Corp | 19.4K | $2.7M | Sep 30, 2025 |
Recent activity
- $305.2KFeb 14, 2025
- Sold$0(-100.00%)May 15, 2025
- $3.2MAug 14, 2025
- Sold$0(-100.00%)Feb 17, 2026
- $1.5MAug 14, 2026
- Reduced$1M(-35.12%)Nov 14, 2024
- Reduced$426.7K(-41.83%)May 15, 2025
- Increased$3.4M(508.16%)Aug 14, 2025
- Reduced$1.6K(-61.53%)Nov 14, 2025
- Reduced$1.1K(-46.09%)Feb 17, 2026
- Reduced$15.1M(-28.52%)Aug 14, 2026
- New$931.3KMay 15, 2026
- Reduced$1.3M(-3.64%)Aug 14, 2026
- $2.7MDec 9, 2025
- New$1.3MAug 14, 2024
- $261.9KMay 15, 2024
Frequently asked questions
- How many institutional investors hold BELFA?
- 3 tracked institutional investors disclosed a position in BELFA (BEL FUSE INC) in their most recent 13F filing.
- Who is the largest institutional holder of BELFA?
- Ken Griffin, Citadel Advisors, holds the largest disclosed position in BELFA, valued at $15M.
- Did institutional ownership of BELFA increase or decrease?
- Across recent 13F filings, tracked investors recorded 7 new positions, 1 increased, 6 reduced, and 2 fully exited BELFA.
- Where does this BELFA ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.