AEP Transmission Maintains Non-Accelerated Filer Status

TL;DR

AEP Transmission is a critical, FERC-regulated cog in AEP's machine, but its non-accelerated filer status means less direct public scrutiny, making AEP's overall health the real play.

AI Summary

AEP Transmission Company, LLC (AEPTCo) is an intermediate holding company that owns seven wholly-owned, FERC-regulated transmission-only electric utilities, geographically aligned with AEP's existing utility operating companies. AEPTCo is a wholly-owned subsidiary of AEP Transmission Holding Company, LLC (AEPTHCo), which in turn is a subsidiary of American Electric Power Company, Inc. (AEP). As of October 29, 2025, AEPTCo has 'NA' shares of common stock outstanding, indicating its 100% interest is held by AEP Transmission Holdco. The company is classified as a non-accelerated filer by the SEC. This 10-Q filing for the quarter ended September 30, 2025, is filed with a reduced disclosure format as per General Instruction H(2) to Form 10-Q. The report highlights AEPTCo's role within the broader AEP structure, focusing on its transmission operations and regulatory status under FERC. Key risks include changes in economic conditions, volatility in financial markets affecting capital costs, and the ability to obtain regulatory approvals for transmission projects.

Why It Matters

AEPTCo's role as a pure-play transmission entity within the larger AEP structure is crucial for grid reliability and expansion, directly impacting electricity delivery to customers across multiple states. Its non-accelerated filer status suggests a smaller operational footprint compared to its parent, AEP, but its FERC-regulated transmission assets are vital for regional power markets. Investors should note that while AEPTCo itself doesn't have publicly traded shares, its performance and regulatory environment directly influence AEP's overall financial health and strategic direction in the competitive utility sector. The ability to recover costs and secure timely regulatory approvals for transmission projects is a key competitive differentiator.

Risk Assessment

Risk Level: medium — The filing indicates 'volatility and disruptions in financial markets' and 'the availability and cost of funds to finance working capital and capital needs' as significant risks. Specifically, the ability to finance new capital projects and refinance existing debt, especially if 'expected sources of capital such as proceeds from the sale of tax credits and anticipated securitizations do not materialize or do not materialize at the level anticipated,' poses a financial risk. Furthermore, the ability to obtain necessary regulatory approvals and permits for transmission lines and facilities is a key operational risk.

Analyst Insight

Investors should monitor American Electric Power Company, Inc.'s (AEP) capital expenditure plans and regulatory approvals for transmission projects, as AEPTCo's success is directly tied to AEP's strategic investments in infrastructure. Pay close attention to AEP's ability to secure favorable financing and timely cost recovery from FERC, as these factors will directly impact the profitability and growth of its transmission segment.

Financial Highlights

debt To Equity

Not Disclosed

revenue

Not Disclosed

operating Margin

Not Disclosed

total Assets

Not Disclosed

total Debt

Not Disclosed

net Income

Not Disclosed

eps

Not Disclosed

gross Margin

Not Disclosed

cash Position

Not Disclosed

revenue Growth

Not Disclosed

Key Numbers

• NA — Shares of common stock outstanding for AEPTCo (Indicates 100% interest held by AEP Transmission Holding Company, LLC, not publicly traded.)
• 535,265,602 — Shares of common stock outstanding for American Electric Power Company, Inc. (Reflects the parent company's public float as of October 29, 2025.)

Key Players & Entities

• AEP Transmission Company, LLC (company) — intermediate holding company for transmission operations
• American Electric Power Company, Inc. (company) — parent company and investor-owned electric public utility holding company
• AEP Transmission Holding Company, LLC (company) — intermediate holding company owning AEPTCo
• SEC (regulator) — U.S. Securities and Exchange Commission
• FERC (regulator) — Federal Energy Regulatory Commission
• October 29, 2025 (date) — date of common stock outstanding count
• September 30, 2025 (date) — end of quarterly period for the 10-Q filing
• 535,265,602 (dollar_amount) — shares of common stock outstanding for American Electric Power Company, Inc.

FAQ

Risk Factors

• Economic Conditions and Capital Costs [medium — market]: Changes in economic conditions can impact demand for electricity and the ability of customers to pay for services. Volatility in financial markets can affect the cost of capital, influencing the company's ability to finance new transmission projects and refinance existing debt. This directly impacts AEPTCo's profitability and expansion plans.
• Regulatory Approvals for Transmission Projects [high — regulatory]: The company's ability to undertake and complete necessary transmission infrastructure upgrades and expansions is contingent upon obtaining timely approvals from regulatory bodies, including FERC. Delays or denials of these approvals can significantly hinder growth and operational efficiency.
• Interest Rate Fluctuations [medium — financial]: As a transmission-only entity, AEPTCo relies on debt financing for its capital-intensive projects. Fluctuations in interest rates can increase the cost of borrowing, impacting net income and the overall financial health of the company.

Industry Context

The electric transmission industry is capital-intensive and subject to significant regulatory oversight. Companies like AEPTCo operate in a landscape where grid modernization, renewable energy integration, and reliability are key drivers for investment. Competition primarily comes from other regulated transmission providers and, to a lesser extent, from independent transmission developers.

Regulatory Implications

AEPTCo operates under FERC's jurisdiction, meaning all its transmission rates and services are subject to federal regulation. Obtaining timely regulatory approvals for new projects and rate adjustments is critical for its financial performance and ability to meet growing transmission demands.

What Investors Should Do

1. Monitor regulatory filings and decisions from FERC.
2. Assess AEP's overall capital expenditure plans for transmission.

Glossary

FERC

Federal Energy Regulatory Commission. An independent agency that regulates the transmission of electricity in interstate commerce. (AEPTCo is regulated by FERC, and its ability to undertake projects and set rates is subject to FERC approval.)

Non-accelerated filer

A type of filer with the SEC that is not required to comply with certain accelerated reporting deadlines and disclosure requirements. (Indicates AEPTCo has a reduced disclosure format in this 10-Q filing, meaning less detailed financial information may be presented.)

Intermediate holding company

A company that owns other companies but is itself owned by a parent company. (Describes AEPTCo's position within the AEP corporate structure, highlighting its role as an owner of transmission utilities.)

Year-Over-Year Comparison

As this filing utilizes a reduced disclosure format under General Instruction H(2), a direct comparison of key financial metrics like revenue growth, net income, and margins to the previous year's filing is not feasible without access to the prior period's detailed financial statements. The risk factors section indicates a continued focus on regulatory approvals and market volatility, suggesting these remain persistent concerns for AEPTCo.

Key Financial Figures

• $6.50 — ectric Power Company Inc. Common Stock, $6.50 par value AEP The NASDAQ Stock Market L
• $0.01 — ($6.50 par value) AEP Texas Inc. 100 ($0.01 par value) AEP Transmission Company, L
• $15 — Service Company of Oklahoma 9,013,000 ($15 par value) Southwestern Electric Power
• $18 — hwestern Electric Power Company 3,680 ($18 par value) (a) 100% interest is held

Filing Documents

• aep-20250930.htm (10-Q) — 11014KB
• ex31aaep20253q.htm (EX-31.A) — 10KB
• ex31aaeptco20253q.htm (EX-31.A) — 10KB
• ex31aaeptexas20253q.htm (EX-31.A) — 10KB
• ex31aapco20253q.htm (EX-31.A) — 10KB
• ex31aim20253q.htm (EX-31.A) — 10KB
• ex31aopco20253q.htm (EX-31.A) — 10KB
• ex31apso20253q.htm (EX-31.A) — 10KB
• ex31aswepco20253q.htm (EX-31.A) — 10KB
• ex31baep20253q.htm (EX-31.B) — 10KB
• ex31baeptco20253q.htm (EX-31.B) — 10KB
• ex31baeptexas20253q.htm (EX-31.B) — 10KB
• ex31bapco20253q.htm (EX-31.B) — 10KB
• ex31bim20253q.htm (EX-31.B) — 10KB
• ex31bopco20253q.htm (EX-31.B) — 10KB
• ex31bpso20253q.htm (EX-31.B) — 10KB
• ex31bswepco20253q.htm (EX-31.B) — 10KB
• ex32aaep20253q.htm (EX-32.A) — 4KB
• ex32aaeptco20253q.htm (EX-32.A) — 4KB
• ex32aaeptexas20253q.htm (EX-32.A) — 4KB
• ex32aapco20253q.htm (EX-32.A) — 4KB
• ex32aim20253q.htm (EX-32.A) — 4KB
• ex32aopco20253q.htm (EX-32.A) — 4KB
• ex32apso20253q.htm (EX-32.A) — 4KB
• ex32aswepco20253q.htm (EX-32.A) — 4KB
• ex32baep20253q.htm (EX-32.B) — 4KB
• ex32baeptco20253q.htm (EX-32.B) — 4KB
• ex32baeptexas20253q.htm (EX-32.B) — 4KB
• ex32bapco20253q.htm (EX-32.B) — 4KB
• ex32bim20253q.htm (EX-32.B) — 4KB
• ex32bopco20253q.htm (EX-32.B) — 4KB
• ex32bpso20253q.htm (EX-32.B) — 4KB
• ex32bswepco20253q.htm (EX-32.B) — 4KB
• aep-20250930_g1.jpg (GRAPHIC) — 117KB
• aep-20250930_g2.jpg (GRAPHIC) — 132KB
• 0000004904-25-000171.txt ( ) — 48302KB
• aep-20250930.xsd (EX-101.SCH) — 187KB
• aep-20250930_cal.xml (EX-101.CAL) — 157KB
• aep-20250930_def.xml (EX-101.DEF) — 1669KB
• aep-20250930_lab.xml (EX-101.LAB) — 1345KB
• aep-20250930_pre.xml (EX-101.PRE) — 2002KB
• aep-20250930_htm.xml (XML) — 11841KB

FINANCIAL INFORMATION

Part I. FINANCIAL INFORMATION Items 1, 2, 3 and 4 - Financial Statements, Management's Discussion and Analysis of Financial Condition and Results of Operations, Quantitative and Qualitative Disclosures About Market Risk and Controls and Procedures: American Electric Power Company, Inc. and Subsidiary Companies:

Management's Discussion and Analysis of Financial Condition and Results of Operations 1

Management's Discussion and Analysis of Financial Condition and Results of Operations 1 Condensed Consolidated Financial Statements 44 AEP Texas Inc. and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 50 Condensed Consolidated Financial Statements 53 AEP Transmission Company, LLC and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 59 Condensed Consolidated Financial Statements 61 Appalachian Power Company and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 66 Condensed Consolidated Financial Statements 69 Indiana Michigan Power Company and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 75 Condensed Consolidated Financial Statements 78 Ohio Power Company and Subsidiaries: Management's Narrative Discussion and Analysis of Results of Operations 84 Condensed Consolidated Financial Statements 87 Public Service Company of Oklahoma: Management's Narrative Discussion and Analysis of Results of Operations 92 Condensed Financial Statements 95 Southwestern Electric Power Company Consolidated: Management's Narrative Discussion and Analysis of Results of Operations 101 Condensed Consolidated Financial Statements 104 Index of Condensed Notes to Condensed Financial Statements of Registrants 110

Controls and Procedures 198

Controls and Procedures 198

OTHER INFORMATION

Part II. OTHER INFORMATION

Legal Proceedings 199

Item 1. Legal Proceedings 199

Risk Factors 199

Item 1A. Risk Factors 199

Unregistered Sales of Equity Securities and Use of Proceeds 199

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 199

Defaults Upon Senior Securities 199

Item 3. Defaults Upon Senior Securities 199

Mine Safety Disclosures 200

Item 4. Mine Safety Disclosures 200

Other Information 200

Item 5. Other Information 200

Exhibits 201

Item 6. Exhibits 201 SIGNATURE 202 This combined Form 10-Q is separately filed by American Electric Power Company, Inc., AEP Texas Inc., AEP Transmission Company, LLC, Appalachian Power Company, Indiana Michigan Power Company, Ohio Power Company, Public Service Company of Oklahoma and Southwestern Electric Power Company. Information contained herein relating to any individual registrant is filed by such registrant on its own behalf. Except for American Electric Power Company, Inc., each registrant makes no representation as to information relating to the other registrants. GLOSSARY OF TERMS When the following terms and abbreviations appear in the text of this report, they have the meanings indicated below. Term Meaning AEGCo AEP Generating Company, an AEP electric utility subsidiary. AEP American Electric Power Company, Inc., an investor-owned electric public utility holding company which includes American Electric Power Company, Inc. (Parent) and majority owned consolidated subsidiaries and consolidated affiliates. AEP Credit AEP Credit, Inc., a consolidated VIE of AEP which securitizes accounts receivable and accrued utility revenues for affiliated electric utility companies. AEP East Companies APCo, I&M, KGPCo, KPCo, OPCo and WPCo. AEP Energy Supply, LLC A nonregulated holding company for AEP's competitive generation, wholesale and retail businesses, and a wholly-owned subsidiary of AEP. AEP OnSite Partners A division of AEP Energy Supply, LLC that builds, owns, operates and maintains customer solutions utilizing existing and emerging distributed technologies. AEP Texas AEP Texas Inc., an AEP electric utility subsidiary. AEP Texas engages in the transmission and distribution of electric power to retail customers in west, central and southern Texas. AEP Transmission Holdco / AEPTHCo AEP Transmission Holding Company, LLC, a subsidiary of AEP, an intermediate holding company that owns transmission operations joint ventures and AEPTCo. AEPE

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