Ameren (NYSE: AEE) chairman files Form 3 reporting zero share ownership

Rhea-AI Filing Summary

AMEREN CORP executive Melda P. Aaron, who serves as Chairman and President, has filed an initial Form 3 indicating no current ownership of company securities. The filing lists "No securities are beneficially owned" and shows zero shares reported as of the stated date.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Melda Aaron P

Role Chairman and President

Type	Security	Shares	Price	Value
holding	No securities are beneficially owned.	--	--	--

Holdings After Transaction: No securities are beneficially owned. — 0 shares (Direct, null)

Footnotes (1)

Key Figures

Total shares following entry: 0.0000 shares Holding entries: 1 entry Buy transactions: 0 +1 more

4 metrics

Total shares following entry 0.0000 shares Reported on Form 3 as beneficially owned

Holding entries 1 entry Initial Form 3 ownership report

Buy transactions 0 Transaction summary buyCount

Sell transactions 0 Transaction summary sellCount

Key Terms

Form 3, beneficially owned, initial ownership statement, transaction code

4 terms

Form 3 regulatory

"This Form 3 records their initial report of beneficial ownership"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

beneficially owned financial

"The security title field states "No securities are beneficially owned""

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

initial ownership statement regulatory

"It is an initial ownership statement indicating that no Ameren securities are beneficially owned"

transaction code regulatory

"The filing records one holding entry with an unknown transaction code"

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SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Melda Aaron P

(Last) (First) (Middle)

1901 CHOUTEAU AVENUE

(Street)

ST LOUIS MISSOURI 63103

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/01/2026

3. Issuer Name and Ticker or Trading Symbol
AMEREN CORP [ AEE ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman and President

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
No securities are beneficially owned.	0	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

	Jonathan T. Shade, Deputy Corp. Secy. for Ameren Corporation, attorney-in-fact for Aaron P. Melda	06/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

FAQ

What does Ameren (AEE) Melda P. Aaron's Form 3 filing show?

The Form 3 filing shows Melda P. Aaron, Chairman and President of Ameren, reports no securities as beneficially owned, with zero shares listed as of the reported date in this initial ownership statement.

Who is the insider named in Ameren (AEE) Form 3 and what is their role?

The insider is Melda P. Aaron, identified as an officer of Ameren with the title Chairman and President. This Form 3 records their initial report of beneficial ownership in Ameren securities, which is reported as zero shares.

How many Ameren (AEE) shares does Melda P. Aaron report owning on Form 3?

Melda P. Aaron reports owning zero Ameren shares on the Form 3. The security title field states "No securities are beneficially owned" and the total shares following the reported entry are shown as 0.0000.

Is Melda P. Aaron buying or selling Ameren (AEE) stock in this Form 3?

This Form 3 does not show any stock purchases or sales by Melda P. Aaron. It is an initial ownership statement indicating that no Ameren securities are beneficially owned, with no transaction codes for buys or sells reported.

What transaction activity is reported for Ameren (AEE) insider Melda P. Aaron?

The filing records one holding entry with an unknown transaction code but specifies that no securities are beneficially owned. Transaction share amounts are not listed, and total shares following the entry are reported as 0.0000, indicating no position.