Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in MX held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | OAKTREE CAPITAL MANAGEMENT LP | 2.5M | $11.8M | -12.3% | 6.849% | 0.16% |
| 2 | MARSHALL WACE, LLP | 1.6M | $7.6M | +29.8% | 4.426% | 0.01% |
| 3 | FourWorld Capital Management LLC | 1.6M | $7.6M | -3.4% | 4.385% | 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 | β | 3.644% | 0.03% |
| 7 | NOMURA HOLDINGS INC | 1.0M | $4.7M | β | 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 | β | 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 | β | 1.048% | 0.00% |
| 17 | CITADEL ADVISORS LLC | 378K | $1.8M | +278.5% | 1.036% | 0.00% |
| 18 | Trexquant Investment LP | 286K | $1.4M | β | 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 | β | 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 | β | 0.439% | 0.00% |
| 25 | BLUEFIN CAPITAL MANAGEMENT, LLC | 220K | $747K | β | 0.603% | 0.19% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in MX β a direct measure of their conviction.
Filings activity in MX during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 79 | +11% | 57.48% | +3.61 pp | $92M | +84% |
| Q1 2026 | 71 | +2.9% | 53.87% | 5.95 pp | $50M | 4.1% |
| Q4 2025 | 69 | 8.0% | 59.82% | 3.13 pp | $52M | 22% |
| Q3 2025 | 75 | 18% | 62.95% | 2.71 pp | $67M | 25% |
| Q2 2025 | 92 | +4.5% | 65.66% | +4.53 pp | $90M | +21% |
| Q1 2025 | 88 | +7.3% | 61.13% | 138.86 pp | $75M | 95% |
| Q4 2024 | 82 | 4.7% | 199.99% | +139.87 pp | $1.40B | +1256% |
| Q3 2024 | 86 | β | 60.12% | β | $103M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying MX stock.
Based on Q2 2026 13F filings, institutional ownership of MagnaChip Semiconductor stands at 57.5%, held across 79 reporting institutions.
OAKTREE CAPITAL MANAGEMENT LP is the largest reported institutional holder of MX, with approximately 2,500,000 shares worth $0.01B as of Q2 2026.
Yes β 6 widely-followed marquee investors appear among the top 25 institutional holders of MX, including TWO SIGMA INVESTMENTS, LP, SUSQUEHANNA INTERNATIONAL GROUP, LLP, JANE STREET GROUP, LLC, RENAISSANCE TECHNOLOGIES LLC, MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for MX is 80 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
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