8 institutions reported holding $37.3M of FLEXSHARES TR (FEIG) in SEC 13F filings for 2026-03-31. Largest institutional holders: NORTHERN TRUST CORP ($32.0M), COMMONWEALTH EQUITY SERVICES, LLC ($2.3M), CITADEL ADVISORS LLC ($1.4M), Mason & Associates Inc ($758,338), JANE STREET GROUP, LLC ($502,798). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | NORTHERN TRUST CORP | $32.0M | 781,052 | Added |
| 2 | COMMONWEALTH EQUITY SERVICES, LLC | $2.3M | 55,627 | Added |
| 3 | CITADEL ADVISORS LLC | $1.4M | 33,570 | Trimmed |
| 4 | Mason & Associates Inc | $758,338 | 18,646 | Added |
| 5 | JANE STREET GROUP, LLC | $502,798 | 12,285 | Trimmed |
| 6 | Curi Capital, LLC | $394,135 | 9,630 | Hold |
| 7 | OSAIC HOLDINGS, INC. | $0 | 0 | Exited |
| 8 | BANK OF AMERICA CORP /DE/ | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31