BELFB Bel Fuse Inc.
Bel Fuse Inc. (BELFB) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| Point72 Asset Management, L.P. | Sold Out | -4.7K | -100.0% | $1.6M | 0.0% | 61 |
| Alyeska Investment Group, L.P. | New | +91.5K | — | $30.5M | 0.1% | 60 |
| MARSHALL WACE, LLP Long/Short | New | +59.6K | — | $19.8M | 0.0% | 60 |
| MILLENNIUM MANAGEMENT LLC | New | +4.6K | — | $1.5M | 0.0% | 59 |
| Ghisallo Capital Management Long/Short | New | +30.0K | — | $10.0M | 0.3% | 58 |
| Magnetar Capital Event Quant | Sold Out | -1.1K | -100.0% | $356.0K | 0.0% | 54 |
| Gotham Asset Management, LLC Quant Value | New | +908 | — | $302.4K | 0.0% | 54 |
| ExodusPoint Capital Management Long/Short Quant | New | +3.9K | — | $1.3M | 0.0% | 54 |
| Man Group Event Long/Short | Sold Out | -5.7K | -100.0% | $1.9M | 0.0% | 54 |
| Walleye Capital Long/Short Quant | Sold Out | -1.2K | -100.0% | $403.3K | 0.0% | 51 |
Most significant buyers
By move score, not size.
- Alyeska Investment Group, L.P.
- MARSHALL WACE, LLP
- MILLENNIUM MANAGEMENT LLC
- Ghisallo Capital Management
- Gotham Asset Management, LLC
Most significant sellers
By move score, not size.
- Point72 Asset Management, L.P.
- Magnetar Capital
- Man Group
- Walleye Capital
- CenterBook Partners
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Point72 Asset Management, L.P. | 1 | 0 | 4.7K | -4.7K | -100.0% | 0.0% | Sold Out | 61 |
| Alyeska Investment Group, L.P. | 2 | 91.5K | 0 | +91.5K | — | 0.1% | New | 60 |
| MARSHALL WACE, LLP | 2 | 59.6K | 0 | +59.6K | — | 0.0% | New | 60 |
| MILLENNIUM MANAGEMENT LLC | 2 | 4.6K | 0 | +4.6K | — | 0.0% | New | 59 |
| Ghisallo Capital Management | 2 | 30.0K | 0 | +30.0K | — | 0.3% | New | 58 |
| Magnetar Capital | 2 | 0 | 1.1K | -1.1K | -100.0% | 0.0% | Sold Out | 54 |
| Gotham Asset Management, LLC | 2 | 908 | 0 | +908 | — | 0.0% | New | 54 |
| ExodusPoint Capital Management | 3 | 3.9K | 0 | +3.9K | — | 0.0% | New | 54 |
| Man Group | 3 | 0 | 5.7K | -5.7K | -100.0% | 0.0% | Sold Out | 54 |
| Walleye Capital | 3 | 0 | 1.2K | -1.2K | -100.0% | 0.0% | Sold Out | 51 |
| CenterBook Partners | 4 | 0 | 8.7K | -8.7K | -100.0% | 0.0% | Sold Out | 51 |
| Lighthouse Investment Partners | 3 | 1.3K | 0 | +1.3K | — | 0.0% | New | 51 |
| Aquatic Capital Management | 4 | 0 | 3.2K | -3.2K | -100.0% | 0.0% | Sold Out | 50 |
| Voloridge Investment Management | 2 | 2.3K | 35.1K | -32.8K | -93.4% | 0.0% | Reduced | 50 |
| Engineers Gate | 4 | 0 | 4.0K | -4.0K | -100.0% | 0.0% | Sold Out | 50 |
| CITADEL ADVISORS LLC | 1 | 6.0K | 32.5K | -26.6K | -81.7% | 0.0% | Reduced | 49 |
| TWO SIGMA INVESTMENTS, LP | 2 | 4.2K | 14.6K | -10.4K | -71.1% | 0.0% | Reduced | 45 |
| Quantbot Technologies | 4 | 744 | 0 | +744 | — | 0.0% | New | 45 |
| Caxton Associates | 3 | 7.8K | 5.2K | +2.7K | +51.6% | 0.0% | Increased | 35 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 207.7K | 213.9K | -6.1K | -2.9% | 0.1% | Reduced | 30 |
| Portolan Capital Management | 3 | 47.9K | 53.2K | -5.3K | -10.0% | 0.6% | Reduced | 28 |
| Qube Research & Technologies Ltd | 2 | 11.3K | 11.8K | -478 | -4.1% | 0.0% | Reduced | 25 |
| AQR Capital Management | 3 | 6.9K | 6.6K | +321 | +4.9% | 0.0% | Increased | 21 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.