Ticker · held by 3 filers

BELFB

BEL FUSE INC

All tracked filers currently holding BELFB, ranked by position size. Each row links through to the filer's full portfolio.

Total value held

$96.3M

Total shares

1,075,996

Filers holding

3 · 4 positions

Caveat

long only · 13F-eligible managers only

Filers holding BELFB

sorted by position size · click any filer to see their full portfolio

# Filer Class Shares Value (USD) % of port

1 BlackRock · Larry Fink CL B 826,198 $53.9M 0.00%

2 Renaissance Technologies · Jim Simons (founder) CL B 231,351 $39.2M 0.06%

3 Citadel Advisors · Ken Griffin CALLCL B 14,500 $2.5M 0.00%

4 Citadel Advisors · Ken Griffin CL B 3,947 $669.5K 0.00%

What this is

This page reverses the usual 13F view: instead of "what does Buffett hold," it answers "who holds NVDA?" Across the dozen tracked filers, all current 13F-disclosed holders of BELFB are listed, with the position size and what fraction of each filer's overall portfolio it represents.

Caveats: only the filers tracked here are included (~12 names) — not the whole 13F universe (~6,000 filers). Position values are at the most recent quarter-end, not current market price. Only long positions are visible; shorts and synthetics aren't.

v0.2 · 2026 · data via SEC EDGAR · CUSIP→ticker via OpenFIGI