1 institutions reported holding $5.1M of BUTLER NATIONAL CORP (BUKS) in SEC 13F filings for 2026-03-31. Largest institutional holders: Mink Brook Asset Management LLC ($5.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Mink Brook Asset Management LLC | $5.1M | 1.4M | Added |
Source: SEC Form 13F filings · as of 2026-03-31