STOCK TITAN

[Form 4] AMEREN CORP Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Negative)
Form Type
4

Mark C. Lindgren, Executive Vice President and Chief HR Officer of a subsidiary of Ameren Corporation (AEE), reported a sale and current holdings in a Form 4 filing. On 09/12/2025 he sold 3,500 shares of Ameren common stock at $100.89 per share. After the transaction he beneficially owns 42,574 shares, which includes an estimated 1,701 share equivalents in the Ameren Savings Investment Plan as of August 31, 2025, and 48 accrued dividend equivalents from reinvested restricted stock units. The Form 4 was signed by an attorney-in-fact on 09/15/2025. The filing discloses the sale, the composition of holdings, and that dividend reinvestment affected the reported balance.

Mark C. Lindgren, Vicepresidente Esecutivo e Direttore Risorse Umane di una filiale della Ameren Corporation (AEE), ha riportato una vendita e le attuali detenzioni in una pratica Form 4. Il 09/12/2025 ha venduto 3.500 azioni ordinarie Ameren a $100.89 per azione. Dopo la transazione detiene beneficiariamente 42.574 azioni, che includono una stima di 1.701 equivalenti azionari nel Ameren Savings Investment Plan al 31 agosto 2025, e i 48 accordi di dividendi maturati da unità azionarie vincolate reinvestite. Il Form 4 è stato firmato da un procuratore-in-fatto il 09/15/2025. La presentazione divulga la vendita, la composizione delle partecipazioni e che il reinvestimento dei dividendi ha influenzato il saldo riportato.

Mark C. Lindgren, Vicepresidente Ejecutivo y Director de Recursos Humanos de una filial de Ameren Corporation (AEE), reportó una venta y las participaciones actuales en una presentación Form 4. El 09/12/2025 vendió 3,500 acciones ordinarias de Ameren a $100.89 por acción. Después de la transacción posee beneficiosamente 42,574 acciones, que incluyen una estimación de 1,701 equivalentes en el Ameren Savings Investment Plan al 31 de agosto de 2025, y 48 equivalentes de dividendos acumulados de unidades restringidas reinvertidas. El Form 4 fue firmado por un apoderado en fecha 09/15/2025. La presentación divulga la venta, la composición de las participaciones y que la reinversión de dividendos afectó el saldo informado.

Mark C. Lindgren는 Ameren Corporation(AEE)의 자회사의 임원 부사장 겸 최고 인사책임자로서 Form 4 제출에서 매매 및 현재 보유를 보고했습니다. 2025년 9월 12일 그는 Ameren 보통주 3,500주를 주당 $100.89에 매도했습니다. 거래 후 그는 42,574주를 실질적으로 보유하게 되었으며, 이는 2025년 8월 31일 기준 Ameren Savings Investment Plan의 추정 1,701주 상당분과 재투자된 제한 주식 단위에서 발생한 48주의 배당금 상당액을 포함합니다. Form 4는 2025년 9월 15일에 대리인에 의해 서명되었습니다. 이 제출은 매매를 공개하고 보유 구성 및 배당 재투자에 의해 보고된 잔액이 영향을 받았음을 밝힙니다.

Mark C. Lindgren, vice-président exécutif et directeur des ressources humaines d'une filiale d'Ameren Corporation (AEE), a déclaré une vente et les positions actuelles dans un formulaire 4. Le 12/09/2025, il a vendu 3 500 actions ordinaires Ameren à $100.89 par action. Après la transaction, il détient bénévolement 42 574 actions, ce qui inclut une estimation de 1 701 équivalents en actions dans le Ameren Savings Investment Plan au 31 août 2025, et 48 équivalents de dividendes accumulés de plans d’unités d’actions restreintes réinvestis. Le Form 4 a été signé par un mandataire le 15/09/2025. Le dépôt divulgue la vente, la composition des détentions et que le réinvestissement des dividendes a affecté le solde déclaré.

Mark C. Lindgren, Executive Vice President und Chief HR Officer einer Tochtergesellschaft der Ameren Corporation (AEE), berichtete in einer Form-4-Einreichung über einen Verkauf und aktuelle Beteiligungen. Am 09/12/2025 verkaufte er 3.500 Ameren Stammaktien zu $100.89 pro Aktie. Nach der Transaktion besitzt er letztendlich 42.574 Aktien, wozu eine geschätzte 1.701 Aktienäquivalente im Ameren Savings Investment Plan zum Stichtag 31. August 2025 gehören, sowie 48 aufgelaufene Dividendenequivalente aus reinvestierten Restricted Stock Units. Das Form 4 wurde von einem Bevollmächtigten am 15.09.2025 unterschrieben. Die Einreichung macht den Verkauf, die Zusammensetzung der Bestände und dass die Dividend reinvestition den gemeldeten Saldo beeinflusst hat, deutlich.

Mark C. Lindgren، نائب الرئيس التنفيذي ومدير الموارد البشرية في شركة تابعة لشركة Ameren Corporation (AEE)، أبلغ عن بيع ومراكز الحيازة الحالية في نموذج 4. في 09/12/2025 باع 3,500 سهمًا عاديًا من Ameren بسعر $100.89 للسهم. بعد المعاملة يملك بشكل مستفيد 42,574 سهمًا، وهو يشمل تقديرًا لـ 1,701 مناظر أسهم في Ameren Savings Investment Plan حتى 31 أغسطس 2025، و 48 مناظرة أرباح الأسهم الناتجة عن إعادة الاستثمار للوحدات المقيدة للأسهم الموزعة. تم توقيع النموذج 4 من قبل وكيل بموجب سلطة في 09/15/2025. تكشف الإيداع عن البيع، وتكوين الحيازات، وأن إعادة استثمار الأرباح قد أثرت على الرصيد المبلغ عنه.

Mark C. Lindgren,Ameren Corporation(AEE)子公司执行副总裁兼首席人力资源官,在 Form 4 申报中报告了出售及当前持股情况。2025/09/12 他以每股 $100.89 的价格出售了 3,500 股 Ameren 普通股。交易后他实际持有 42,574 股,其中包含截至 2025/08/31 的 Ameren Savings Investment Plan 的估计 1,701 股等价,以及来自再投资的受限股单位的 48 股分红等价。该 Form 4 由代理人在 2025/09/15 签署。该申报披露了出售、持股构成,以及股息再投资对报告余额的影响。

Positive
  • Transparent disclosure of insider transaction and composition of holdings including 401(k) and dividend reinvestment
  • Post-transaction holdings remain substantial at 42,574 shares, showing continued ownership
Negative
  • Insider sale of 3,500 shares at $100.89 reduced the reporting person's position by approximately 7.6% of the post-transaction balance
  • No 10b5-1 plan checkbox is marked on the filing to indicate a pre-arranged trading plan

Insights

TL;DR: Routine insider sale disclosed; holdings remain meaningful and include retirement plan and dividend reinvestment.

The Form 4 documents a common, transparent disclosure of an insider sale rather than an unexplained ownership change. The reporting person retains a material position of 42,574 shares after selling 3,500 shares, and the filing clarifies that 1,701 share equivalents are held via the company savings plan and 48 dividend equivalents were added via reinvestment. From a governance perspective, the filing meets disclosure requirements and provides necessary detail on indirect ownership components.

TL;DR: Insider sold ~8% of post-transaction holdings at $100.89; transaction is notable but not necessarily material to ownership control.

The sale of 3,500 shares at $100.89 reduces the reporting person's stake to 42,574 shares. Given the combination of direct and indirect holdings (401(k) unitized fund and accrued dividend equivalents), the disclosure helps analysts reconcile changes in insider positions with plan activity. The filing contains no derivatives or option exercises and does not indicate any additional compensatory grants or plans beyond the dividend reinvestment note.

Mark C. Lindgren, Vicepresidente Esecutivo e Direttore Risorse Umane di una filiale della Ameren Corporation (AEE), ha riportato una vendita e le attuali detenzioni in una pratica Form 4. Il 09/12/2025 ha venduto 3.500 azioni ordinarie Ameren a $100.89 per azione. Dopo la transazione detiene beneficiariamente 42.574 azioni, che includono una stima di 1.701 equivalenti azionari nel Ameren Savings Investment Plan al 31 agosto 2025, e i 48 accordi di dividendi maturati da unità azionarie vincolate reinvestite. Il Form 4 è stato firmato da un procuratore-in-fatto il 09/15/2025. La presentazione divulga la vendita, la composizione delle partecipazioni e che il reinvestimento dei dividendi ha influenzato il saldo riportato.

Mark C. Lindgren, Vicepresidente Ejecutivo y Director de Recursos Humanos de una filial de Ameren Corporation (AEE), reportó una venta y las participaciones actuales en una presentación Form 4. El 09/12/2025 vendió 3,500 acciones ordinarias de Ameren a $100.89 por acción. Después de la transacción posee beneficiosamente 42,574 acciones, que incluyen una estimación de 1,701 equivalentes en el Ameren Savings Investment Plan al 31 de agosto de 2025, y 48 equivalentes de dividendos acumulados de unidades restringidas reinvertidas. El Form 4 fue firmado por un apoderado en fecha 09/15/2025. La presentación divulga la venta, la composición de las participaciones y que la reinversión de dividendos afectó el saldo informado.

Mark C. Lindgren는 Ameren Corporation(AEE)의 자회사의 임원 부사장 겸 최고 인사책임자로서 Form 4 제출에서 매매 및 현재 보유를 보고했습니다. 2025년 9월 12일 그는 Ameren 보통주 3,500주를 주당 $100.89에 매도했습니다. 거래 후 그는 42,574주를 실질적으로 보유하게 되었으며, 이는 2025년 8월 31일 기준 Ameren Savings Investment Plan의 추정 1,701주 상당분과 재투자된 제한 주식 단위에서 발생한 48주의 배당금 상당액을 포함합니다. Form 4는 2025년 9월 15일에 대리인에 의해 서명되었습니다. 이 제출은 매매를 공개하고 보유 구성 및 배당 재투자에 의해 보고된 잔액이 영향을 받았음을 밝힙니다.

Mark C. Lindgren, vice-président exécutif et directeur des ressources humaines d'une filiale d'Ameren Corporation (AEE), a déclaré une vente et les positions actuelles dans un formulaire 4. Le 12/09/2025, il a vendu 3 500 actions ordinaires Ameren à $100.89 par action. Après la transaction, il détient bénévolement 42 574 actions, ce qui inclut une estimation de 1 701 équivalents en actions dans le Ameren Savings Investment Plan au 31 août 2025, et 48 équivalents de dividendes accumulés de plans d’unités d’actions restreintes réinvestis. Le Form 4 a été signé par un mandataire le 15/09/2025. Le dépôt divulgue la vente, la composition des détentions et que le réinvestissement des dividendes a affecté le solde déclaré.

Mark C. Lindgren, Executive Vice President und Chief HR Officer einer Tochtergesellschaft der Ameren Corporation (AEE), berichtete in einer Form-4-Einreichung über einen Verkauf und aktuelle Beteiligungen. Am 09/12/2025 verkaufte er 3.500 Ameren Stammaktien zu $100.89 pro Aktie. Nach der Transaktion besitzt er letztendlich 42.574 Aktien, wozu eine geschätzte 1.701 Aktienäquivalente im Ameren Savings Investment Plan zum Stichtag 31. August 2025 gehören, sowie 48 aufgelaufene Dividendenequivalente aus reinvestierten Restricted Stock Units. Das Form 4 wurde von einem Bevollmächtigten am 15.09.2025 unterschrieben. Die Einreichung macht den Verkauf, die Zusammensetzung der Bestände und dass die Dividend reinvestition den gemeldeten Saldo beeinflusst hat, deutlich.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Lindgren Mark C

(Last) (First) (Middle)
P.O. BOX 66149

(Street)
ST. LOUIS MO 63166-6149

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
AMEREN CORP [ AEE ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
Officer (give title below) X Other (specify below)
EVP & Chief HR Officer of Sub
3. Date of Earliest Transaction (Month/Day/Year)
09/12/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock, $.01 Par Value 1,701(1) I By 401(K)
Common Stock, $.01 Par Value 09/12/2025 S 3,500 D $100.89 42,574(2) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. 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 August 31, 2025.
2. Amount includes 48 accrued dividend equivalents acquired during the third quarter of 2025 pursuant to a dividend reinvestment feature of restricted stock units granted under the issuer's 2022 Omnibus Incentive Compensation Plan.
Remarks:
Jonathan T. Shade, Deputy Corp. Secy. for Ameren Corporation, attorney-in-fact for Mark C. Lindgren 09/15/2025
** 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 4 (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.

FAQ

What did Ameren (AEE) insider Mark C. Lindgren report on Form 4?

The filing reports a sale of 3,500 shares at $100.89 on 09/12/2025 and shows 42,574 shares beneficially owned after the transaction.

How much of Lindgren's Ameren holdings are in a retirement plan?

The filing states an estimated 1,701 share equivalents are held in the Ameren Corporation Savings Investment Plan as of 08/31/2025.

Did dividend reinvestment affect the reported holdings?

Yes. The reported total includes 48 accrued dividend equivalents from dividend reinvestment of restricted stock units during Q3 2025.

Was the Form 4 signed and when?

The Form 4 was signed by the attorney-in-fact, Jonathan T. Shade, on 09/15/2025.

Are there any derivative or option transactions reported?

No. Table II (derivative securities) shows no derivative or option transactions in this filing.
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