NI - CIK 0001111711
NISOURCE INC. has filed 2,530 documents with the SEC between 2000 and 2026. The most frequent type is insider trade (1,347 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Insider sale notice | 144 | 2026-05-22 | - |
| Insider sale notice | 144 | 2026-05-21 | - |
| Insider trade | 4 | 2026-05-21 | 2026-05-14 |
| Insider sale notice | 144 | 2026-05-20 | - |
| Major company event | 8-K | 2026-05-18 | 2026-05-18 |
| Insider sale notice | 144 | 2026-05-14 | - |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Insider trade | 4 | 2026-05-13 | 2026-05-11 |
| Major company event | 8-K | 2026-05-12 | 2026-05-11 |
| Prospectus supplement | 424B2 | 2026-05-12 | - |
| Free writing prospectus | FWP | 2026-05-11 | - |
| Prospectus supplement | 424B5 | 2026-05-11 | - |
| Quarterly report | 10-Q | 2026-05-06 | 2026-03-31 |
| Major company event | 8-K | 2026-05-06 | 2026-05-06 |
| SCHEDULE 13G | - | 2026-04-30 | - |
| SCHEDULE 13G | - | 2026-04-29 | - |
| Annual report to shareholders | ARS | 2026-03-30 | 2025-12-31 |
| Proxy materials | DEFA14A | 2026-03-30 | - |
| Proxy statement | DEF 14A | 2026-03-30 | 2026-05-11 |
| SCHEDULE 13G/A | - | 2026-03-27 | - |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-03-03 | 2026-02-27 |
| Insider trade | 4 | 2026-02-19 | 2026-02-18 |
| Insider sale notice | 144 | 2026-02-18 | - |
| Insider trade | 4 | 2026-02-17 | 2026-02-13 |
| Insider sale notice | 144 | 2026-02-13 | - |
| Annual report | 10-K | 2026-02-11 | 2025-12-31 |
| Major company event | 8-K | 2026-02-11 | 2026-02-11 |
| Insider trade | 4 | 2026-01-27 | 2026-01-26 |
| Insider trade | 4 | 2026-01-23 | 2026-01-22 |
| Insider trade | 4 | 2026-01-23 | 2026-01-21 |
| Insider trade | 4 | 2026-01-23 | 2026-01-21 |
| Insider trade | 4 | 2026-01-23 | 2026-01-21 |
| Insider trade | 4 | 2026-01-23 | 2026-01-21 |
| Insider trade | 4 | 2026-01-23 | 2026-01-21 |