# EDGAR Filing Document

**Accession Number:** 0000081020
**File Stem:** 0001104659-26-023533
**Filing Date:** 2026-3
**Character Count:** 6684
**Document Hash:** 82983b70fc9978ee60f5168c9bf07754
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-023533.hdr.sgml**: 20260304

**ACCESSION NUMBER**: 0001104659-26-023533

**CONFORMED SUBMISSION TYPE**: FWP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260304

**DATE AS OF CHANGE**: 20260304

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Duke Energy Indiana, LLC
- **CENTRAL INDEX KEY:** 0000081020
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 350594457
- **STATE OF INCORPORATION:** IN
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-290475-03
- **FILM NUMBER:** 26722434

**BUSINESS ADDRESS:**
- **STREET 1:** 1000 EAST MAIN STREET
- **CITY:** PLAINFIELD
- **STATE:** IN
- **ZIP:** 46168
- **BUSINESS PHONE:** 704-382-3853

**MAIL ADDRESS:**
- **STREET 1:** 1000 EAST MAIN STREET
- **CITY:** PLAINFIELD
- **STATE:** IN
- **ZIP:** 46168

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Duke Energy Indiana, Inc.
- **DATE OF NAME CHANGE:** 20061003

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PSI ENERGY INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PUBLIC SERVICE CO OF INDIANA INC
- **DATE OF NAME CHANGE:** 19900509
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Duke Energy Indiana, LLC
- **CENTRAL INDEX KEY:** 0000081020
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 350594457
- **STATE OF INCORPORATION:** IN
- **FISCAL YEAR END:** 1231

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

**BUSINESS ADDRESS:**
- **STREET 1:** 1000 EAST MAIN STREET
- **CITY:** PLAINFIELD
- **STATE:** IN
- **ZIP:** 46168
- **BUSINESS PHONE:** 704-382-3853

**MAIL ADDRESS:**
- **STREET 1:** 1000 EAST MAIN STREET
- **CITY:** PLAINFIELD
- **STATE:** IN
- **ZIP:** 46168

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Duke Energy Indiana, Inc.
- **DATE OF NAME CHANGE:** 20061003

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PSI ENERGY INC
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PUBLIC SERVICE CO OF INDIANA INC
- **DATE OF NAME CHANGE:** 19900509

***Filed pursuant to Rule 433***

***March 4, 2026***

***Relating to***

***Preliminary Prospectus Supplement dated March 4, 2026***

***to***

***Prospectus dated September 23, 2025***

***Registration Statement No. 333-290475-03***

**DUKE ENERGY indiana, LLC<br> $500,000,000 FIRST MORTGAGE BONDS, SERIES DDDD, 4.95%, DUE MARCH 15, 2036**

<u>Pricing Term Sheet</u>

---

| | |
|:---|:---|
| &nbsp;&nbsp;Issuer: | &nbsp;&nbsp;Duke Energy Indiana, LLC (the "**Issuer**") |
| &nbsp;&nbsp;Trade Date: | &nbsp;&nbsp;March 4, 2026 |
| &nbsp;&nbsp;Settlement Date: | &nbsp;&nbsp;March 6, 2026; T+2 |
| &nbsp;&nbsp;Security Description: | &nbsp;&nbsp;First Mortgage Bonds, Series DDDD, 4.95%, Due March 15, 2036 (the "**Mortgage Bonds**") |
| &nbsp;&nbsp;Expected Ratings (Moody's/S&P):\* | &nbsp;&nbsp;Aa3 (Stable) / A (Stable) |
| &nbsp;&nbsp;Interest Payment Dates: | &nbsp;&nbsp;March 15 and September 15 of each year, beginning on September 15, 2026 |
| &nbsp;&nbsp;Principal Amount: | &nbsp;&nbsp;$500000000 |
| &nbsp;&nbsp;Maturity Date: | &nbsp;&nbsp;March 15, 2036 |
| &nbsp;&nbsp;Coupon: | &nbsp;&nbsp;4.95% |
| &nbsp;&nbsp;Benchmark Treasury: | &nbsp;&nbsp;4.125% due February 15, 2036 |
| &nbsp;&nbsp;Benchmark Treasury Price: | &nbsp;&nbsp;100-11+ |
| &nbsp;&nbsp;Benchmark Treasury Yield: | &nbsp;&nbsp;4.080% |
| &nbsp;&nbsp;Spread to Benchmark Treasury: | &nbsp;&nbsp;+ 90 bps |
| &nbsp;&nbsp;Yield to Maturity: | &nbsp;&nbsp;4.980% |
| &nbsp;&nbsp;Price to Public: | &nbsp;&nbsp;99.764% per Mortgage Bond |

---

---

| | |
|:---|:---|
| &nbsp;&nbsp; Redemption Provisions/ Make-Whole Call: | &nbsp;&nbsp; Prior to December 15, 2035 (the date that is three months prior to the maturity date of the Mortgage Bonds (the "**Par Call Date**")), the Issuer may redeem the Mortgage Bonds at its option, in whole or in part, at any time and from time to time, at a redemption price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of: (a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date (assuming the Mortgage Bonds matured on the Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 15 basis points less (b) interest accrued to the redemption date; and 100% of the principal amount of the Mortgage Bonds to be redeemed, plus, in either case, accrued and unpaid interest thereon to, but excluding the redemption date.<br>On or after the Par Call Date, the Issuer may redeem the Mortgage Bonds at its option, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the Mortgage Bonds to be redeemed plus accrued and unpaid interest thereon to, but excluding, the redemption date. |
| &nbsp;&nbsp;CUSIP / ISIN: | &nbsp;&nbsp;26443T AG1 / US26443TAG13 |
| &nbsp;&nbsp;Joint Book-Running Managers: | &nbsp;&nbsp; BMO Capital Markets Corp.<br> CIBC World Markets Corp.<br> MUFG Securities Americas Inc.<br> U.S. Bancorp Investments, Inc. |
| &nbsp;&nbsp;Co-Managers: | &nbsp;&nbsp; Huntington Securities, Inc.<br> KeyBanc Capital Markets Inc.<br> Regions Securities LLC<br> CastleOak Securities, L.P.<br> Stern Brothers & Co. |

---

\*Note: A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision, suspension or withdrawal at any time. Each credit rating should be evaluated independently of any other credit rating.

**The Issuer has filed a registration statement (including a prospectus) with the Securities and Exchange Commission (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 calling BMO Capital Markets Corp. toll-free at (888) 200-0266, CIBC World Markets Corp. toll-free at (800) 282-0822, MUFG Securities Americas Inc. toll-free at (877) 649-6848 or U.S. Bancorp Investments, Inc. toll-free at (877) 558-2607.**