LYONS MARTIN J

PrivateCIK: 1190099
Location

ST. LOUIS, MO

LYONS MARTIN J (Chairman, President & CEO) sold 8.7% of their position (26.82K shares) of AMEREN CORP on the open market

Open‑market sale worth $3.00M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderLYONS MARTIN JCIK 1190099
IssuerAMEREN CORPCIK 1002910
DirectorOfficer· Chairman, President & CEO
Since Feb 2026
-54.97K
Net shares
Net seller
$6.19M
Total sold
1
Open market trades
0B · 1S
2
Total transactions
54.97K disposed
Non-Derivative Transactions2

Common Stock, $.01 Par Value

Direct
F · Tax Withholding

Shares

28.15K

Price / share

$113.28

Trade value

$3.19M

% of position

8.3%
2/27/2026
337.65K309.50K

Common Stock, $.01 Par Value

Direct
S · Sale

Shares

26.82K

Price / share

$111.84

Trade value

$3M

% of position

8.7%
3/3/2026
309.50K282.68K
Total

Net shares

54.97K

Net value

-$6.19M

Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1

Common Stock, $.01 Par Value

Indirect
Shares owned2.12K
Total
2.12K indirect2.12K
Derivative Holdings (Post-Transaction)0
No derivative holdings reported
LYONS MARTIN J — Insider Transaction (Form 4) Filed Mar 3, 2026 | Finecho