1 institutions reported holding $1,361 of GREENWICH LIFESCIENCES INC COM (GLSI) in SEC 13F filings for 2026-06-30. Largest institutional holders: GAMMA Investing LLC ($1,361). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GAMMA Investing LLC | $1,361 | 58 | Added |
Source: SEC Form 13F filings · as of 2026-06-30