| 6.89% |
| 4 | TWO SIGMA INVESTMENTS, LP | 1.5M | $7.1M | +162.6% | 4.114% | 0.01% |
| 5 | D. E. Shaw & Co., Inc. | 1.4M | $6.6M | +775.8% | 3.830% | 0.00% |
| 6 | Caption Management, LLC | 1.3M | $6.3M | — | 3.644% | 0.03% |
| 7 | NOMURA HOLDINGS INC | 1.0M | $4.7M | — | 2.740% | 0.01% |
| 8 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 802K | $3.8M | +1378.3% | 2.197% | 0.00% |
| 9 | JANE STREET GROUP, LLC | 666K | $3.2M | +1239.1% | 1.826% | 0.00% |
| 10 | RENAISSANCE TECHNOLOGIES LLC | 662K | $3.1M | +1763.7% | 1.813% | 0.00% |
| 11 | MORGAN STANLEY | 544K | $2.6M | -23.4% | 1.491% | 0.00% |
| 12 | DIMENSIONAL FUND ADVISORS LP | 476K | $2.2M | -13.4% | 1.303% | 0.00% |
| 13 | Connor, Clark & Lunn Investment Management Ltd. | 413K | $2.0M | +326.9% | 1.131% | 0.00% |
| 14 | PEAK6 LLC | 400K | $1.9M | — | 1.096% | 0.00% |
| 15 | MILLENNIUM MANAGEMENT LLC | 397K | $1.9M | +35.7% | 1.089% | 0.00% |
| 16 | Qube Research & Technologies Ltd | 382K | $1.8M | — | 1.048% | 0.00% |
| 17 | CITADEL ADVISORS LLC | 378K | $1.8M | +278.5% | 1.036% | 0.00% |
| 18 | Trexquant Investment LP | 286K | $1.4M | — | 0.783% | 0.01% |
| 19 | BNP PARIBAS FINANCIAL MARKETS | 265K | $1.3M | -19.5% | 0.726% | 0.00% |
| 20 | VANGUARD PORTFOLIO MANAGEMENT LLC | 240K | $1.1M | 0.0% | 0.657% | 0.00% |
| 21 | XTX Topco Ltd | 222K | $1.1M | — | 0.609% | 0.01% |
| 22 | ODDO BHF ASSET MANAGEMENT SAS | 215K | $1.0M | 0.0% | 0.589% | 0.05% |
| 23 | BOOTHBAY FUND MANAGEMENT, LLC | 200K | $946K | -3.4% | 0.548% | 0.01% |
| 24 | TUDOR INVESTMENT CORP ET AL | 160K | $758K | — | 0.439% | 0.00% |
| 25 | BLUEFIN CAPITAL MANAGEMENT, LLC | 220K | $747K | — | 0.603% | 0.19% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in MX — a direct measure of their conviction.
| 61.13% |
| 138.86 pp |
| $75M |
| 95% |
| Q4 2024 | 82 | 4.7% | 199.99% | +139.87 pp | $1.40B | +1256% |
| Q3 2024 | 86 | — | 60.12% | — | $103M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
27 institutions opened new positions in MX during Q2 2026, while 17 fully exited. 39 added to existing positions and 12 trimmed.
MX institutional ownership rose by 3.61 percentage points quarter-over-quarter, with a net change of +8 holders.
The top 10 institutions account for 66.9% of all reported 13F value in MX, and the top 25 account for 91.1%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
MagnaChip Semiconductor (MX) Institutional Ownership