目前共有 175 家機構持有 MAGN，以下依持股市值由高至低排序。
| 主要持有機構 | 總市值 | 平均佔比 |
|---|---|---|
| Smartleaf Asset Management LLC | US$284.0 | 0.00% |
| SITTNER & NELSON, LLC | US$257.0 | 0.00% |
| IFP Advisors, Inc | US$257.0 | 0.00% |
| HARBOUR INVESTMENTS, INC. | US$238.0 | 0.00% |
| BROWN BROTHERS HARRIMAN & CO | US$238.0 | 0.00% |
| Root Financial Partners, LLC | US$209.0 | 0.00% |
| MidFirst Bank | US$200.0 | 0.00% |
| EverSource Wealth Advisors, LLC | US$190.0 | 0.00% |
| Sunbelt Securities, Inc. | US$190.0 | 0.00% |
| WPG Advisers, LLC | US$95.0 | 0.00% |
| Transamerica Financial Advisors, LLC | US$95.0 | 0.00% |
| Advisory Services Network, LLC | US$77.0 | 0.00% |
| Winch Advisory Services, LLC | US$73.0 | 0.00% |
| Versant Capital Management, Inc | US$67.0 | 0.00% |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | US$67.0 | 0.00% |
| Private Wealth Management Group, LLC | US$67.0 | 0.00% |
| Eurizon Capital SGR S.p.A. | US$67.0 | 0.00% |
| Parkside Financial Bank & Trust | US$58.0 | 0.00% |
| SJS Investment Consulting Inc. | US$39.0 | 0.00% |
| Farther Finance Advisors, LLC | US$28.0 | 0.00% |
| TWIN PEAKS WEALTH ADVISORS, LLC | US$19.0 | 0.00% |
| BESSEMER GROUP INC | US$0.0 | 0.00% |
| Erste Asset Management GmbH | US$0.0 | 0.00% |
| Capital Advisors, Ltd. LLC | US$0.0 | 0.00% |
| Covestor Ltd | US$0.0 | 0.00% |