# EDGAR Filing Document

**Accession Number:** 0000092487
**File Stem:** 0000092487-26-000005
**Filing Date:** 2026-3
**Character Count:** 6041
**Document Hash:** 7014aecd2ba92909a952f33963fd66ae
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000092487-26-000005.hdr.sgml**: 20260305

**ACCESSION NUMBER**: 0000092487-26-000005

**CONFORMED SUBMISSION TYPE**: FWP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260305

**DATE AS OF CHANGE**: 20260305

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHWESTERN ELECTRIC POWER CO
- **CENTRAL INDEX KEY:** 0000092487
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 720323455
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-282060
- **FILM NUMBER:** 26726517

**BUSINESS ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
- **BUSINESS PHONE:** 614-716-1000

**MAIL ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHWESTERN ELECTRIC POWER CO
- **CENTRAL INDEX KEY:** 0000092487
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 720323455
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP

**BUSINESS ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
- **BUSINESS PHONE:** 614-716-1000

**MAIL ADDRESS:**
- **STREET 1:** 1 RIVERSIDE PLAZA
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215

Filed pursuant to Rule 433

Registration No. 333-282060

March 5, 2026

**PRICING TERM SHEET**

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| | | | |
|:---|:---|:---|:---|
| Issuer: | Southwestern Electric Power Company | Southwestern Electric Power Company | Southwestern Electric Power Company |
| Expected Ratings\*: | Baa2 (Stable) by Moody's Investors Service, Inc.<br>BBB+ (Stable) by S&P Global Ratings, a division of S&P Global Inc.<br>BBB+ (Stable) by Fitch Ratings, Inc. | Baa2 (Stable) by Moody's Investors Service, Inc.<br>BBB+ (Stable) by S&P Global Ratings, a division of S&P Global Inc.<br>BBB+ (Stable) by Fitch Ratings, Inc. | Baa2 (Stable) by Moody's Investors Service, Inc.<br>BBB+ (Stable) by S&P Global Ratings, a division of S&P Global Inc.<br>BBB+ (Stable) by Fitch Ratings, Inc. |
| Transaction Date: | March 5, 2026 | March 5, 2026 | March 5, 2026 |
| Settlement Date: | March 9, 2026 (T+2) | March 9, 2026 (T+2) | March 9, 2026 (T+2) |
| Designation: | Senior Notes, Series P, due 2033 | Senior Notes, Series Q, due 2036 | Senior Notes, Series R, due 2056 |
| Principal Amount: | $300000000 | $600000000 | $500000000 |
| Maturity: | April 1, 2033 | April 1, 2036 | April 1, 2056 |
| Coupon: | 5.30% | 5.20% | 5.90% |
| Interest Payment Dates: | April 1 and October 1 | April 1 and October 1 | April 1 and October 1 |
| First Interest Payment Date: | April 1, 2026 | October 1, 2026 | October 1, 2026 |
| Treasury Benchmark: | 4.125% due February 15, 2036 | 4.125% due February 15, 2036 | 4.625% due November 15, 2055 |
| Treasury Yield: | 4.144% | 4.144% | 4.757% |
| Reoffer Spread: | T+72 basis points | T+107 basis points | T+117 basis points |
| Yield to Maturity: | 4.864% | 5.214% | 5.927% |
| Price to Public: | 102.505% of the principal amount thereof, plus accrued interest from October 1, 2025 (totaling $6,978,333.33) | 99.887% of the principal amount thereof | 99.617% of the principal amount thereof |
| Redemption Terms: |  |  |  |
| &nbsp;&nbsp;&nbsp;Make-whole call: | Prior to January 1, 2033 at a discount rate of the Treasury Rate plus 30 basis points | Prior to January 1, 2036 at a discount rate of the Treasury Rate plus 20 basis points | Prior to October 1, 2055 at a discount rate of the Treasury Rate plus 20 basis points |
| &nbsp;&nbsp;&nbsp;Par call: | On or after January 1, 2033 at par | On or after January 1, 2036 at par | On or after October 1, 2055 at par |
| CUSIP/ISIN: | 845437 BU5/US845437BU53 | 845437 BV3/US845437BV37 | 845437 BW1/US845437BW10 |
| Minimum Denomination: | $2,000 and integral multiples of $1,000 in excess thereof | $2,000 and integral multiples of $1,000 in excess thereof | $2,000 and integral multiples of $1,000 in excess thereof |
| Joint Book-Running Managers: | BNY Mellon Capital Markets, LLC<br>Huntington Securities, Inc.<br>Mizuho Securities USA LLC<br>Scotia Capital (USA) Inc. | BNY Mellon Capital Markets, LLC<br>Huntington Securities, Inc.<br>Mizuho Securities USA LLC<br>Scotia Capital (USA) Inc. | BNY Mellon Capital Markets, LLC<br>Huntington Securities, Inc.<br>Mizuho Securities USA LLC<br>Scotia Capital (USA) Inc. |
| Co-Managers: | Fifth Third Securities, Inc.<br>PNC Capital Markets LLC<br>Truist Securities, Inc.<br>U.S. Bancorp Investments, Inc. | Fifth Third Securities, Inc.<br>PNC Capital Markets LLC<br>Truist Securities, Inc.<br>U.S. Bancorp Investments, Inc. | Fifth Third Securities, Inc.<br>PNC Capital Markets LLC<br>Truist Securities, Inc.<br>U.S. Bancorp Investments, Inc. |

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**\*Note:** A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

**The issuer has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents the issuer has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by contacting BNY Mellon Capital Markets, LLC toll-free at (800) 269, 6864, Huntington Securities, Inc. toll-free at (800) 824 5652, Mizuho Securities USA LLC toll-free at (866) 271-7403 or Scotia Capital (USA) Inc. toll-free at (800) 372-3930.** 

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