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NINiSource

Utilities · Electric & Gas Utilities · NYSE
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Filings with the SEC since Feb 20, 2015

1,010 filings, 13 in the last 30 days

SEC filing index
Latest annual reportOpen ↗
Feb 11, 2026
10-K, period to Dec 31, 2025
Latest quarterly reportOpen ↗
Oct 28, 2026
10-Q, period to Sep 30, 2026
Latest current reportOpen ↗
Nov 9, 2026
8-K: Other events
Filed in the last 30 days
13
of 1,010 in all
Timeline

Every filing on one line

1 yr2 yr3 yr
Annual report (10-K)Quarterly report (10-Q)Current report (8-K)Auditor changeCEO, CFO, COO or CAO changeRestatementLate filing noticeInsider purchaseCluster buy (3+ insiders)SEC comment letterShare offering (S-3, 424B)
All 31 events

From the SEC filing index. Insider purchases go back 180 days (the Form 4s downloaded).

Every filing

Newest first, by kind

Each form links to sec.gov
All 1010 Annual & quarterly 48Current reports (8-K) 195Insiders 536Proxy & votes 20Big owners (13D/13G) 48Shares & debt offered 100SEC letters 19Other 44
FiledFormWhat it isPeriod
Nov 9, 20268-K Other eventsNov 9, 2026 all files
Nov 9, 20264 Insider tradeNov 5, 2026 all files
Nov 5, 2026144 Notice of planned insider sale all files
Nov 3, 2026424B2 Prospectus (notes) all files
Nov 3, 20264 Insider tradeOct 30, 2026 all files
Nov 3, 20264 Insider tradeOct 30, 2026 all files
Nov 2, 2026FWP Offering terms all files
Nov 2, 2026424B5 Prospectus all files
Oct 30, 2026144 Notice of planned insider sale all files
Oct 30, 2026144 Notice of planned insider sale all files
Oct 28, 202610-Q Quarterly reportSep 30, 2026 all files · tables
Oct 28, 20268-K Quarterly resultsOct 28, 2026 all files
Oct 16, 20268-K New debt or obligationOct 15, 2026 all files
Aug 18, 20268-K Other eventsAug 18, 2026 all files
Aug 18, 20264 Insider tradeAug 14, 2026 all files
Aug 14, 2026144 Notice of planned insider sale all files
Aug 14, 2026SCHEDULE 13G/A 5%+ owner (passive), amended all files
Aug 14, 2026424B2 Prospectus (notes) all files
Aug 13, 2026FWP Offering terms all files
Aug 13, 2026424B5 Prospectus all files
Aug 5, 202610-Q Quarterly reportJun 30, 2026 all files · tables
Aug 5, 20268-K Quarterly resultsAug 5, 2026 all files
Jul 15, 20264 Insider tradeJul 13, 2026 all files
Jun 18, 202611-K Employee plan annual reportDec 31, 2025 all files
May 27, 20264 Insider tradeMay 22, 2026 all files
May 26, 20264 Insider tradeMay 21, 2026 all files
May 22, 2026144 Notice of planned insider sale all files
May 21, 2026144 Notice of planned insider sale all files
May 21, 20264 Insider tradeMay 14, 2026 all files
May 20, 2026144 Notice of planned insider sale all files
May 18, 20268-K Other eventsMay 18, 2026 all files
May 14, 2026144 Notice of planned insider sale all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 13, 20264 Insider tradeMay 11, 2026 all files
May 12, 20268-K Shareholder vote resultsMay 11, 2026 all files
May 12, 2026424B2 Prospectus (notes) all files
May 11, 2026FWP Offering terms all files
May 11, 2026424B5 Prospectus all files
May 6, 202610-Q Quarterly reportMar 31, 2026 all files · tables
May 6, 20268-K Quarterly resultsMay 6, 2026 all files
Apr 30, 2026SCHEDULE 13G 5%+ owner (passive) all files
Apr 29, 2026SCHEDULE 13G 5%+ owner (passive) all files
Mar 30, 2026ARS Annual report to shareholdersDec 31, 2025 all files
Mar 30, 2026DEFA14A Extra proxy material all files
Mar 30, 2026DEF 14A Proxy statementMay 11, 2026 all files
Mar 27, 2026SCHEDULE 13G/A 5%+ owner (passive), amended all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Mar 3, 20264 Insider tradeFeb 27, 2026 all files
Feb 19, 20264 Insider tradeFeb 18, 2026 all files
Feb 18, 2026144 Notice of planned insider sale all files
Feb 17, 20264 Insider tradeFeb 13, 2026 all files
Feb 13, 2026144 Notice of planned insider sale all files
Feb 11, 202610-K Annual reportDec 31, 2025 all files · tables
Feb 11, 20268-K Quarterly resultsFeb 11, 2026 all files
Jan 27, 20264 Insider tradeJan 26, 2026 all files
Jan 23, 20264 Insider tradeJan 22, 2026 all files
Jan 23, 20264 Insider tradeJan 21, 2026 all files
Jan 23, 20264 Insider tradeJan 21, 2026 all files
Jan 23, 20264 Insider tradeJan 21, 2026 all files
Jan 23, 20264 Insider tradeJan 21, 2026 all files
Jan 23, 20264 Insider tradeJan 21, 2026 all files
Jan 23, 20264 Insider tradeJan 21, 2026 all files
Jan 23, 20264 Insider tradeJan 21, 2026 all files
Dec 11, 20258-K Material agreement signed, New debt or obligationDec 11, 2025 all files
Dec 5, 2025SCHEDULE 13G/A 5%+ owner (passive), amended all files
Nov 26, 20254 Insider tradeNov 25, 2025 all files
Nov 25, 2025144 Notice of planned insider sale all files
Nov 7, 20258-K Other eventsNov 7, 2025 all files
Nov 7, 2025S-8 Shares registered for employee plans all files
Nov 4, 2025424B2 Prospectus (notes) all files
Nov 4, 2025FWP Offering terms all files
Nov 3, 2025424B5 Prospectus all files
Oct 31, 20258-K Material agreement signed, Other eventsOct 31, 2025 all files
Oct 31, 2025424B5 Prospectus all files
Oct 30, 2025S-3ASR Shelf registration all files
Oct 29, 202510-Q Quarterly reportSep 30, 2025 all files · tables
Oct 29, 20258-K Quarterly resultsOct 29, 2025 all files
Sep 22, 20258-K Regulation FD disclosureSep 22, 2025 all files
Sep 2, 20254 Insider tradeAug 28, 2025 all files
Aug 28, 2025144 Notice of planned insider sale all files
Aug 14, 2025SCHEDULE 13G/A 5%+ owner (passive), amended all files
Aug 13, 20254 Insider tradeAug 11, 2025 all files
Aug 6, 202510-Q Quarterly reportJun 30, 2025 all files · tables
Aug 6, 20258-K Quarterly resultsAug 6, 2025 all files
Jun 27, 20258-K Other eventsJun 27, 2025 all files
Show the other 75 filings on this page

Press releases with quarterly results are attached to the 8-Ks marked "Quarterly results"; read them on Earnings releases.

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