Ameren Missouri Announces Pricing of First Mortgage Bonds due 2056

Ameren Missouri (NYSE:AEE), a subsidiary of Ameren Corporation, priced a $500 million public offering of 5.75% first mortgage bonds due 2056, issued at 99.324% of principal.

Rhea-AI Summary

Ameren Missouri (NYSE:AEE), a subsidiary of Ameren Corporation, priced a $500 million public offering of 5.75% first mortgage bonds due 2056, issued at 99.324% of principal. Closing is expected on June 29, 2026, subject to customary conditions.

Net proceeds are intended to refinance short-term debt and/or fund near-term capital expenditures.

Positive

• Prices $500 million first mortgage bonds due 2056 at 5.75%
• Locks in long-term funding to refinance short-term debt and fund capex
• Investment managed by multiple joint book-running managers, diversifying distribution

Negative

• None.

Argus Jun 16 session

+0.83% close to close Open Argus

Details

News Market Reaction – AEE

On Jun 16, the first trading day after this news, AEE closed 0.83% above the previous close.

Data tracked by StockTitan Argus for the Jun 16 session.

Market Context

This announcement details a $500 million first mortgage bond offering at 5.75%, priced at 99.324% an...

Analysis

This announcement details a $500 million first mortgage bond offering at 5.75%, priced at 99.324% and maturing in 2056, to refinance short-term debt and fund near-term capital expenditures. It sits alongside an effective S-3ASR for 1,894,702 shares under the DRPlus plan, highlighting Ameren’s diversified funding toolkit. Investors may focus on how added debt affects interest expense, future rate cases, and the balance between leverage, equity issuance, and infrastructure growth.

Key Figures

Bond offering size: $500 million Coupon rate: 5.75% Issue price: 99.324% +5 more

Bond offering size

$500 million

Aggregate principal amount of first mortgage bonds

Coupon rate

5.75%

Interest rate on first mortgage bonds due 2056

Issue price

99.324%

Price as percentage of principal amount

Maturity year

2056

First mortgage bonds due date

Expected closing date

June 29, 2026

Anticipated settlement of bond offering

Electric customers

1.3 million

Ameren Missouri electric customer base

Natural gas customers

135,000

Ameren Missouri natural gas customer base

Service area

Approximately 60 counties

Ameren Missouri coverage in central and eastern Missouri

Historical Context

5 past events · Latest: May 21

5 events

1. May 21

   Leadership change

   24h Move

   +1.1%

   New chairman and president appointed at Ameren Missouri utility subsidiary.

2. May 19

   Transmission projects win

   24h Move

   +1.5%

   MISO selects Ameren-led consortium for major Illinois 765-kV lines.

3. May 15

   Dividend declaration

   24h Move

   -3.0%

   Board declares $0.75 quarterly dividend and preferred dividends.

4. May 05

   Earnings report

   24h Move

   -1.8%

   Q1 2026 net income and EPS rise; 2026 guidance reaffirmed.

5. Apr 15

   Earnings webcast notice

   24h Move

   +1.4%

   Schedules May 6, 2026 webcast to discuss Q1 results and guidance.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

first mortgage bonds, prospectus supplement

2 terms

first mortgage bonds financial

"the pricing of a public offering of $500 million aggregate principal amount of 5.75% first mortgage bonds"

First mortgage bonds are debt securities backed by a company’s property, granting bondholders the primary legal claim to that real estate if the issuer cannot pay. Think of them as being first in line for repayment, like a homeowner’s mortgage lender who gets paid before other creditors. For investors, this priority and the tangible collateral typically make these bonds less risky than unsecured debt, which can mean lower yields but greater protection in bankruptcy.

prospectus supplement regulatory

"A prospectus supplement related to the offering will be filed with the Securities and Exchange Commission."

A prospectus supplement is an additional document provided alongside a company's main offering details, offering updated or extra information about a specific financial product being sold. It helps investors understand the latest terms, risks, and details of the investment, similar to how an update or revision clarifies or expands on original instructions, ensuring they have current and complete information before making a decision.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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ST. LOUIS, June 15, 2026 /PRNewswire/ -- Union Electric Company, doing business as Ameren Missouri, a subsidiary of Ameren Corporation (NYSE: AEE), announced today the pricing of a public offering of $500 million aggregate principal amount of 5.75% first mortgage bonds due 2056 at 99.324% of their principal amount. The transaction is expected to close on June 29, 2026, subject to the satisfaction of customary closing conditions.

Ameren Missouri intends to use the net proceeds of the offering to refinance short-term debt and/or fund near-term capital expenditures.

Fifth Third Securities, Inc., Mizuho Securities USA LLC, TD Securities (USA) LLC, Truist Securities, Inc., U.S. Bancorp Investments, Inc. and BNY Mellon Capital Markets, LLC are acting as joint book-running managers for the offering.

The offering is being made only by means of a prospectus and related prospectus supplement. A prospectus supplement related to the offering will be filed with the Securities and Exchange Commission. Copies of the prospectus and related prospectus supplement for the offering, when available, may be obtained via the Securities and Exchange Commission's website at www.sec.gov or by contacting Mizuho Securities USA LLC, 1271 Avenue of the Americas, New York, NY 10020, Attention: Debt Capital Markets, Telephone: 1-866-271-7403.

This press release does not constitute an offer to sell or a solicitation of an offer to buy the first mortgage bonds and shall not constitute an offer, solicitation or sale in any jurisdiction in which, or to any person to whom, such an offer, solicitation or sale is unlawful.

About Ameren Missouri
Ameren Missouri has been providing electric and gas service for more than 100 years, and the company's electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for its approximately 1.3 million electric and 135,000 natural gas customers in central and eastern Missouri. The company's service area covers approximately 60 counties and more than 500 communities, including the greater St. Louis area.

View original content to download multimedia:https://www.prnewswire.com/news-releases/ameren-missouri-announces-pricing-of-first-mortgage-bonds-due-2056-302800872.html

SOURCE Ameren Missouri

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What are the key terms of Ameren Missouri's new bonds due 2056 (NYSE:AEE)?

Ameren Missouri priced $500 million of 5.75% first mortgage bonds due 2056 at 99.324% of principal. According to Ameren Missouri, the transaction is a public offering expected to close June 29, 2026, subject to customary closing conditions.

How will Ameren Missouri use proceeds from the $500 million AEE bond offering?

Ameren Missouri plans to use net proceeds to refinance short-term debt and/or fund near-term capital expenditures. According to Ameren Missouri, this allocation focuses on managing existing obligations and supporting upcoming investment needs in its utility operations.

When is the expected closing date for Ameren Missouri's 5.75% first mortgage bonds (AEE)?

The bond offering is expected to close on June 29, 2026. According to Ameren Missouri, the closing remains subject to the satisfaction of customary closing conditions typical for public debt offerings in U.S. capital markets.

At what price were Ameren Missouri's 2056 first mortgage bonds (AEE) offered?

The 5.75% first mortgage bonds due 2056 were priced at 99.324% of their principal amount. According to Ameren Missouri, this pricing applies to the $500 million aggregate principal amount in the public offering.

Who are the joint book-running managers for Ameren Missouri's AEE bond issue?

Joint book-running managers are Fifth Third Securities, Mizuho Securities USA, TD Securities (USA), Truist Securities, U.S. Bancorp Investments, and BNY Mellon Capital Markets. According to Ameren Missouri, these firms are managing distribution of the $500 million first mortgage bond offering.

How can investors access offering documents for Ameren Missouri's 2056 bonds (NYSE:AEE)?

Offering documents are available via the SEC's website and from Mizuho Securities USA's Debt Capital Markets group. According to Ameren Missouri, a prospectus supplement related to the 5.75% first mortgage bond offering will be filed with the Securities and Exchange Commission.