GAINN1 — Gladstone Invt Corp Institutional Holders · Q2 2026
Who owns Gladstone Invt Corp (GAINN1)? 3 institutions reported holding $2.57M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Simplex Trading, LLC ($990,986), Group One Trading LLC ($847,208), IMC-Chicago, LLC ($734,350).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $990,986 | 64,100 | Added |
| 2 | GROUP ONE TRADING LLC | $847,208 | 54,800 | Added |
| 3 | IMC-Chicago, LLC | $734,350 | 47,500 | Added |
Source: SEC Form 13F filings · as of 2026-06-30