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Unitil Corp. SEC filings

Unitil (UTL) filed its 10-Q for the quarter ended 30 June 2026 on 3 August 2026. Its latest SEC filing, on 29 September 2026, was an 8-K: material agreement, new financial obligation. 20 filings in the last twelve months, each 8-K by what it was about; the 10-K and proxy statement are on the documents page.

In the twelve months since 11 October 2025 Unitil Corp. filed 20 documents with the SEC of the kinds listed here: 13 current reports (8-K), about 8 material agreement; 5 regulation FD disclosure; 4 new financial obligation; 3 other events; 2 officer or director change; 3 quarterly reports (10-Q), 1 employee plan annual report (11-K), 1 annual report to shareholders (ARS), 1 proxy statement (DEF 14A), 1 annual report (10-K). The latest, filed 29 September 2026: 8-K, material agreement, new financial obligation. The 10-K, the 10-Qs and the proxy statement themselves, each with a link to open it, are on the documents page.

FiledFormWhat it was aboutPeriod or event dateFiling
29 September 20268-KMaterial agreement, New financial obligation24 September 2026EDGAR
3 August 202610-Qquarterly report30 June 2026EDGAR
7 July 20268-KMaterial agreement, New financial obligation, Regulation FD disclosure, Other events30 June 2026EDGAR
26 June 202611-Kemployee plan annual report31 December 2025EDGAR
27 May 20268-KMaterial agreement25 May 2026EDGAR
15 May 20268-KRegulation FD disclosure15 May 2026EDGAR
5 May 20268-KMaterial agreement, New financial obligation30 April 2026EDGAR
4 May 202610-Qquarterly report31 March 2026EDGAR
1 May 20268-KShareholder vote29 April 2026EDGAR
29 April 20268-KRegulation FD disclosure29 April 2026EDGAR
27 March 2026ARSannual report to shareholders31 December 2025EDGAR
27 March 2026DEF 14Aproxy statement29 April 2026EDGAR
24 February 20268-KMaterial agreement19 February 2026EDGAR
9 February 202610-Kannual report31 December 2025EDGAR
2 February 20268-KMaterial agreement, Officer or director change27 January 2026EDGAR
29 January 20268-KMaterial agreement23 January 2026EDGAR
18 December 20258-KRegulation FD disclosure, Other events15 December 2025EDGAR
4 November 20258-KOfficer or director change29 October 2025EDGAR
3 November 20258-KMaterial agreement, New financial obligation, Regulation FD disclosure, Other events31 October 2025EDGAR
3 November 202510-Qquarterly report30 September 2025EDGAR
An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.

Source

The company's filing index on EDGAR, read from the SEC's submissions feed.

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