2 institutions reported holding $25.5M of MFS SERIES TRUST XVII (MIEIX) in SEC 13F filings for 2026-06-30. Largest institutional holders: Arvest Bank Trust Division ($25.5M), Vermillion Wealth Management, Inc. ($4,006). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Arvest Bank Trust Division | $25.5M | 609,237 | Trimmed |
| 2 | Vermillion Wealth Management, Inc. | $4,006 | 96 | New |
Source: SEC Form 13F filings · as of 2026-06-30