The largest holder of GlobalFoundries stock is Mubadala Investment Co. (Investment Company), with 399.6 million shares (72.82% of the company), worth about $17.86 billion as of September 25, 2026. The 10 largest holders together own 91.1%.
In Q2 2026, 474 institutional holdings reports listed 546.0 million shares worth $45.10 billion, down 3.0% in shares from Q1 2026.
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026).

2026Q2
| Holder | Shares | % of company | Value |
|---|---|---|---|
| Mubadala Investment Co. (Investment Company) | 399.6 million | 72.82% | $17.9B |
| Fidelity Management & Research Co. LLC | 69.8 million | 12.73% | $3.1B |
| JPMorgan Investment Management, Inc. | 6.8 million | 1.23% | $302.0M |
| Marshall Wace LLP | 4.6 million | 0.83% | $205.0M |
| T. Rowe Price International Ltd. | 4.0 million | 0.73% | $178.0M |
| Two Sigma Investments LP | 3.4 million | 0.62% | $153.0M |
| Victory Capital Management, Inc. (Investment Management) | 3.1 million | 0.56% | $138.0M |
| Morgan Stanley Capital Services LLC | 3.1 million | 0.56% | $138.0M |
| The Bessemer Group, Inc. | 2.8 million | 0.51% | $126.0M |
| BlackRock Advisors LLC | 2.8 million | 0.51% | $124.0M |
As of September 25, 2026.
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 474 | 546.0 million | $45.1B |
| Q1 2026 | 379 | 563.0 million | $25.0B |
| Q4 2025 | 347 | 562.0 million | $19.6B |
| Q3 2025 | 323 | 559.0 million | $20.0B |
| Q2 2025 | 332 | 549.0 million | $21.0B |
| Q1 2025 | 288 | 552.0 million | $20.4B |
| Q4 2024 | 302 | 555.0 million | $23.8B |
| Q3 2024 | 308 | 551.0 million | $22.2B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Mubadala Investment Co. (Investment Company), with 72.82% of the company (as of September 25, 2026). Next: Fidelity Management & Research Co. LLC (12.73%) and JPMorgan Investment Management, Inc. (1.23%).
474 institutional holdings reports listed GlobalFoundries shares in Q2 2026, 546.0 million shares in all worth $45.10 billion.