1 institutions reported holding $52,374 of MSA SAFETY INC (MNESP) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($52,374). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $52,374 | 300 | New |
Source: SEC Form 13F filings · as of 2026-06-30