MGA Magna International Inc.
Magna International Inc. (MGA) 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 |
|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC Quant | Sold Out | -353.5K | -100.0% | $23.2M | 0.0% | 62 |
| WORLDQUANT MILLENNIUM ADVISORS LLC Quant | Sold Out | -42.5K | -100.0% | $2.8M | 0.0% | 58 |
| CITADEL ADVISORS LLC Quant | Increased | +187.4K | +162.6% | $12.3M | 0.0% | 56 |
| Magnetar Capital Event Quant | Sold Out | -12.4K | -100.0% | $816.8K | 0.0% | 55 |
| Holocene Advisors, LP | Increased | +254.0K | +6338.7% | $16.7M | 0.0% | 54 |
| Tudor Investment Corporation Macro | New | +7.5K | — | $490.0K | 0.0% | 53 |
| Polar Asset Management Partners Long/Short | New | +5.8K | — | $379.8K | 0.0% | 53 |
| Capstone Investment Advisors Quant Macro | Sold Out | -4.0K | -100.0% | $264.3K | 0.0% | 53 |
| Parallax Volatility Advisers Quant | Sold Out | -44.5K | -100.0% | $2.9M | 0.0% | 53 |
| TWO SIGMA INVESTMENTS, LP Quant | Reduced | -1.02M | -81.9% | $67.0M | 0.0% | 52 |
Most significant buyers
By move score, not size.
- CITADEL ADVISORS LLC
- Holocene Advisors, LP
- Tudor Investment Corporation
- Polar Asset Management Partners
- Quadrature Capital
Most significant sellers
By move score, not size.
- RENAISSANCE TECHNOLOGIES LLC
- WORLDQUANT MILLENNIUM ADVISORS LLC
- Magnetar Capital
- Capstone Investment Advisors
- Parallax Volatility Advisers
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 1 | 0 | 353.5K | -353.5K | -100.0% | 0.0% | Sold Out | 62 |
| WORLDQUANT MILLENNIUM ADVISORS LLC | 2 | 0 | 42.5K | -42.5K | -100.0% | 0.0% | Sold Out | 58 |
| CITADEL ADVISORS LLC | 1 | 302.7K | 115.2K | +187.4K | +162.6% | 0.0% | Increased | 56 |
| Magnetar Capital | 2 | 0 | 12.4K | -12.4K | -100.0% | 0.0% | Sold Out | 55 |
| Holocene Advisors, LP | 2 | 258.0K | 4.0K | +254.0K | +6338.7% | 0.0% | Increased | 54 |
| Tudor Investment Corporation | 2 | 7.5K | 0 | +7.5K | — | 0.0% | New | 53 |
| Polar Asset Management Partners | 3 | 5.8K | 0 | +5.8K | — | 0.0% | New | 53 |
| Capstone Investment Advisors | 3 | 0 | 4.0K | -4.0K | -100.0% | 0.0% | Sold Out | 53 |
| Parallax Volatility Advisers | 3 | 0 | 44.5K | -44.5K | -100.0% | 0.0% | Sold Out | 53 |
| TWO SIGMA INVESTMENTS, LP | 2 | 224.8K | 1.2M | -1.02M | -81.9% | 0.0% | Reduced | 52 |
| Quadrature Capital | 3 | 473.8K | 201.8K | +272.0K | +134.8% | 0.3% | Increased | 52 |
| Y-Intercept | 4 | 0 | 23.1K | -23.1K | -100.0% | 0.0% | Sold Out | 50 |
| D. E. Shaw & Co., Inc. | 1 | 596.4K | 1.5M | -920.8K | -60.7% | 0.0% | Reduced | 48 |
| Centiva Capital | 4 | 3.6K | 0 | +3.6K | — | 0.0% | New | 48 |
| MILLENNIUM MANAGEMENT LLC | 2 | 284.5K | 843.0K | -558.4K | -66.2% | 0.0% | Reduced | 47 |
| Qube Research & Technologies Ltd | 2 | 227.8K | 661.3K | -433.5K | -65.6% | 0.0% | Reduced | 45 |
| Trexquant Investment | 3 | 29.9K | 163.2K | -133.3K | -81.7% | 0.0% | Reduced | 42 |
| Walleye Capital | 3 | 1.0K | 3.4K | -2.4K | -70.0% | 0.0% | Reduced | 38 |
| Gotham Asset Management, LLC | 2 | 89.3K | 66.3K | +23.0K | +34.7% | 0.0% | Increased | 34 |
| Engineers Gate | 4 | 12.1K | 30.3K | -18.3K | -60.2% | 0.0% | Reduced | 34 |
| AQR Capital Management | 3 | 2.5M | 2.0M | +555.1K | +28.1% | 0.1% | Increased | 31 |
| Man Group | 3 | 801.5K | 880.6K | -79.1K | -9.0% | 0.1% | Reduced | 26 |
| Voloridge Investment Management | 2 | 143.7K | 156.2K | -12.5K | -8.0% | 0.0% | Reduced | 25 |
| Schonfeld Strategic Advisors | 3 | 101.8K | 86.8K | +15.0K | +17.3% | 0.0% | Increased | 24 |
| Quantbot Technologies | 4 | 51.7K | 69.4K | -17.6K | -25.4% | 0.1% | Reduced | 23 |
| Graham Capital Management | 3 | 22.3K | 26.5K | -4.1K | -15.6% | 0.1% | Reduced | 22 |
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.