3 institutions reported holding $486 of SOLARWINDOW TECHNOLOGIES INC (WNDW) in SEC 13F filings for 2026-03-31. Largest institutional holders: McIlrath & Eck, LLC ($400), Winch Advisory Services, LLC ($86), AMERIFLEX GROUP, INC. ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | McIlrath & Eck, LLC | $400 | 1,000 | New |
| 2 | Winch Advisory Services, LLC | $86 | 216 | Hold |
| 3 | AMERIFLEX GROUP, INC. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31