What SEC filings does Ameren Corporation submit to the SEC?

Ameren Corporation (AEE) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about AEE?

A Form 4 for AEE discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from Ameren Corporation?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for AEE?

The 10-K is Ameren Corporation's annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all AEE SEC filings directly on EDGAR?

You can view all historical Ameren Corporation filings on the SEC EDGAR company page for AEE. Each filing card on this page links directly to the original SEC document.

How often does Ameren Corporation file with the SEC?

Ameren Corporation files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling AEE shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

AEE SEC Filing News — Ameren Corporation

Latest SEC filings for Ameren Corporation (AEE) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-09-28.

Ameren Corporation, together with its subsidiaries, operates as a public utility holding company in the United States. The company operates through four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. It engages in the rate-regulated electric generation, transmission, and distribution business and natural gas transmission and distribution business. The company also generates electricity through coal, nuclear, and natural gas…

Sector: Utilities Industry: Utilities - Regulated Electric Market Cap: $28.8B

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for AEE currently lean bearish. Of the 20 filing records displayed, 5 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.

AEE Filing Activity Snapshot 2026-05-14 — 2026-09-28

Insider Transactions (Form 4)

0 buys vs 5 sells

Net insider selling in this period — insiders sell for many reasons beyond conviction.

Largest Form 144 Filing

$708.2K

MOEHN MICHAEL L (Group President, Utilities) · 2026-08-05

6,500 shares · Form 4

Form 144 Notices

Proposed insider sale filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.

Insider Transactions 10 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 10 filings in this group are Form 4s for Ameren Corporation.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 10 insider filings shown, the breakdown is 5 compensation award and 5 open-market sale. 5 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×5: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Open-market sale ×5: The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Form 4 Open-market sale Insider Selling 2026-09-14

AEE insider Flores Rafael (Director) sold 248 shares (~$26.2K)

Flores Rafael, listed as Director at AMEREN CORP, reported an open-market sale of 248 AEE shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	248	$105.53	$26.2K

Filing: Form 4 (Insider Transaction) Insider: Flores Rafael (Director) Shares: 248 Est. Value: $26.2K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-20

AEE insider Martin Ryan J (SVP Finance) sold 971 shares (~$106.7K)

Martin Ryan J, listed as SVP Finance at AMEREN CORP, reported an open-market sale of 971 AEE shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	471	$109.87	$51.7K
`S`	Open-market sale	500	$109.88	$54.9K

Filing: Form 4 (Insider Transaction) Insider: Martin Ryan J (SVP Finance) Shares: 971 Est. Value: $106.7K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-17

AEE insider Shaw Theresa A (SVP and CATO) sold 325 shares (~$35.4K)

Shaw Theresa A, listed as SVP and CATO at AMEREN CORP, reported an open-market sale of 325 AEE shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	325	$108.93	$35.4K

Filing: Form 4 (Insider Transaction) Insider: Shaw Theresa A (SVP and CATO) Shares: 325 Est. Value: $35.4K

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-08-05

AEE insider MOEHN MICHAEL L (Group President, Utilities) sold 6,500 shares (~$708.2K)

MOEHN MICHAEL L, listed as Group President, Utilities at AMEREN CORP, reported an open-market sale of 6,500 AEE shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	6,500	$108.96	$708.2K

Filing: Form 4 (Insider Transaction) Insider: MOEHN MICHAEL L (Group President, Utilities) Shares: 6,500 Est. Value: $708.2K

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-06

AEE insider Form 4 filed for equity award, exercise, or tax withholding

Smith Patrick E (Chairman & President of Sub) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	280	—	—

Filing: Form 4 (Insider Transaction) Insider: Smith Patrick E (Chairman & President of Sub) Shares: 280

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-06

AEE insider Form 4 filed for equity award, exercise, or tax withholding

Melda Aaron P (Chairman & President of Sub) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	2,520	—	—

Filing: Form 4 (Insider Transaction) Insider: Melda Aaron P (Chairman & President of Sub) Shares: 2,520

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-06

AEE insider Form 4 filed for equity award, exercise, or tax withholding

Arora Ajay K (EVP of Subsidiary) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	716	—	—

Filing: Form 4 (Insider Transaction) Insider: Arora Ajay K (EVP of Subsidiary) Shares: 716

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-03

AEE insider Form 4 filed for equity award, exercise, or tax withholding

Arora Ajay K (EVP of Subsidiary) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	6,797	—	—

Filing: Form 4 (Insider Transaction) Insider: Arora Ajay K (EVP of Subsidiary) Shares: 6,797

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-06-03

AEE insider Form 4 filed for equity award, exercise, or tax withholding

Melda Aaron P (Chairman and President) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	3,705	—	—

Filing: Form 4 (Insider Transaction) Insider: Melda Aaron P (Chairman and President) Shares: 3,705

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market sale Insider Selling 2026-05-14

AEE insider Shaw Theresa A (SVP and CATO) sold 1,825 shares (~$199.5K)

Shaw Theresa A, listed as SVP and CATO at AMEREN CORP, reported an open-market sale of 1,825 AEE shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`S`	Open-market sale	1,500	$109.35	$164.0K
`S`	Open-market sale	325	$109.08	$35.5K

Filing: Form 4 (Insider Transaction) Insider: Shaw Theresa A (SVP and CATO) Shares: 1,825 Est. Value: $199.5K

View on SEC EDGAR → Open Filing Document →

Proposed Insider Sales 1 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Ameren Corporation has 1 such notice in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-08-03

AEE Form 144 filed for proposed insider sale by MOEHN MICHAEL L (6,500 shares) ~$708.2K

MOEHN MICHAEL L filed a Form 144 with the SEC indicating intent to sell AEE (AMEREN CORP) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: MOEHN MICHAEL L Shares: 6,500 Est. Value: $708.2K

View on SEC EDGAR → Open Filing Document →

Material Events 8 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 8 in this period for Ameren Corporation. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-09-28