UNION ELECTRIC CO SEC filing history

281 loaded recent SEC filings. No local filings are indexed for this CIK yet. This fallback shows up to 1,000 recent submissions, not the complete SEC archive.

Open complete filing history at SEC

SEC filing history

Showing 1โ€“25 of 281 matching filings.

Per page
25
Current page
1
S-3ASR File 333-297949-02

S-3ASR

Filing date
04 Aug 2026
Reporting date
Not listed
Next action
Verify source filing
424B2 File 333-274977-02

424B2

Filing date
16 Jun 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
FWP File 333-274977-02

FWP

Filing date
15 Jun 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
424B3 File 333-274977-02

424B3

Filing date
15 Jun 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEFA14C File 001-02967

DEFA14C

Filing date
31 Mar 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
DEF 14C File 001-02967

FORM DEF 14C

Filing date
31 Mar 2026
Reporting date
14 May 2026
Next action
Verify source filing
FWP File 333-274977-02

FWP

Filing date
23 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
424B3 File 333-274977-02

424B3

Filing date
23 Feb 2026
Reporting date
Not listed
SEC evidence
Open document Open filing
Next action
Verify source filing
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .