MFS ACTIVE EXCHANGE TRADED F BLENDED RESEARCH is a security (CUSIP 55286W884) tracked across SEC portfolio filings. 2 institutional managers reported $514K on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| JANE STREET GROUP, LLC | NEW YORK, NY | $266K | 11,844 |
| CITADEL ADVISORS LLC | MIAMI, FL | $248K | 11,022 |