3 institutions reported holding $506,198 of STAG INDUSTRIAL INC (STAG-PA) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($342,540), GROUP ONE TRADING LLC ($129,404), SIMPLEX TRADING, LLC ($34,254). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $342,540 | 9,000 | Added |
| 2 | GROUP ONE TRADING LLC | $129,404 | 3,400 | Added |
| 3 | SIMPLEX TRADING, LLC | $34,254 | 900 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30