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Western Alliance Bancorporation SEC filings

In the twelve months since 9 October 2025 Western Alliance Bancorporation filed 25 documents with the SEC of the kinds listed here: 18 current reports (8-K), about 5 other events; 4 results of operations; 4 regulation fd disclosure; 3 officer or director change; 1 shareholder vote; 3 quarterly reports (10-Q), 1 additional proxy material (DEFA14A), 1 annual report to shareholders (ARS), 1 proxy statement (DEF 14A), 1 annual report (10-K). The latest, filed 31 July 2026: 10-Q, quarterly report.

FiledFormWhat it was aboutPeriod or event dateFiling
31 July 202610-Qquarterly report30 June 2026EDGAR
30 July 20268-KOther events30 July 2026EDGAR
21 July 20268-KResults of operations21 July 2026EDGAR
11 June 20268-KShareholder vote10 June 2026EDGAR
12 May 20268-KOfficer or director change8 May 2026EDGAR
12 May 20268-KRegulation FD disclosure12 May 2026EDGAR
11 May 202610-Qquarterly report31 March 2026EDGAR
30 April 20268-KOther events30 April 2026EDGAR
22 April 2026DEFA14Aadditional proxy materialEDGAR
22 April 2026ARSannual report to shareholders31 December 2025EDGAR
22 April 2026DEF 14Aproxy statement10 June 2026EDGAR
21 April 20268-KResults of operations21 April 2026EDGAR
6 March 20268-KMaterial impairment, Regulation FD disclosure2 March 2026EDGAR
23 February 202610-Kannual report31 December 2025EDGAR
20 February 20268-KOther events20 February 2026EDGAR
5 February 20268-KOther events5 February 2026EDGAR
27 January 20268-KResults of operations26 January 2026EDGAR
22 December 20258-KOfficer or director change19 December 2025EDGAR
11 December 20258-KOfficer or director change10 December 2025EDGAR
24 November 20258-KNew financial obligation24 November 2025EDGAR
19 November 20258-KRegulation FD disclosure19 November 2025EDGAR
3 November 20258-KOther events31 October 2025EDGAR
3 November 202510-Qquarterly report30 September 2025EDGAR
21 October 20258-KResults of operations21 October 2025EDGAR
16 October 20258-KRegulation FD disclosure16 October 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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