Transaction · 0001190099-26-000004

LYONS MARTIN J

LYONS MARTIN J, CHAIR, PRES, CEO, reported a transaction classified as withholding at AMEREN CORP involving 28154.000000 shares for an estimated $3189285.12. Reported holdings after the transaction were 309499.000000 shares. The stored filing text includes a detected 10b5-1 reference.

withholdingSEC transaction code FCHAIR, PRES, CEO
AEEAMEREN CORP
Filing timeMar 03
Trade dateFeb 27, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$112.90
Pre-filing
1mo ago -10.7%1w ago -9.3%1d ago -9.3%
Returns since
7d +0.0%30d -1.9%90d -6.9%180d -6.0%1y -6.0%

AEE price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
AEE since 2026-03-03Filed 184 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
withholding
Code F
Identifier
0001190099-26-000004
Common Stock, $.01 Par Value
Transaction date
Feb 27, 2026
Filed Mar 03, 2026, 12:00 AM · 4d delay
Shares
28.1k sh
$11.3k per share
Estimated value
-$318M
Computed from shares × price
Holdings after
309k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership 10b5-1 Detected
-26score
Filing-only score

-26

Compact filing score computed from stored Form 4 facts. Version v1.

Low filing signal

This filing has a meaningfully negative filing-only score. It is likely less useful as a positive insider-activity signal.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

Chairman, President & CEO

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Represents the estimated number of share equivalents held by the reporting person in the unitized stock fund included in the Ameren Corporation Savings Investment Plan as of February 28, 2026.

  2. F2

    Shares withheld by the issuer to satisfy tax withholding obligations arising in connection with the vesting of performance share units and restricted stock units.

  3. F3

    Shares sold pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

Original filing · 0001190099-26-000004
Related transactions

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Same reporting owner
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AEE