NI-PB — Nisource Inc Institutional Holders · Q2 2026
Who owns Nisource Inc (NI-PB)? 4 institutions reported holding $6.88M in SEC 13F filings for Q2 2026 (period ended 2026-06-30). Largest holders: Simplex Trading, LLC ($4.9M), IMC-Chicago, LLC ($1.4M), Group One Trading LLC ($542,070).
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $4.9M | 104,100 | Added |
| 2 | IMC-Chicago, LLC | $1.4M | 29,200 | Added |
| 3 | GROUP ONE TRADING LLC | $542,070 | 11,400 | Trimmed |
| 4 | HUNTINGTON NATIONAL BANK | $3 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30