# EDGAR Filing Document

**Accession Number:** 0001052192
**File Stem:** 0001104659-26-055650
**Filing Date:** 2026-5
**Character Count:** 9618
**Document Hash:** 740cea9efc052532ba95fd6e1a97c7ce
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-055650.hdr.sgml**: 20260505

**ACCESSION NUMBER**: 0001104659-26-055650

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260505

**DATE AS OF CHANGE**: 20260505

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AUTONATION, INC.
- **CENTRAL INDEX KEY:** 0000350698
- **STANDARD INDUSTRIAL CLASSIFICATION:** RETAIL-AUTO DEALERS & GASOLINE STATIONS [5500]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 731105145
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-40342
- **FILM NUMBER:** 26943423

**BUSINESS ADDRESS:**
- **STREET 1:** 200 SW 1ST AVE
- **STREET 2:** SUITE 1600
- **CITY:** FORT LAUDERDALE
- **STATE:** FL
- **ZIP:** 33301
- **BUSINESS PHONE:** 9547696000

**MAIL ADDRESS:**
- **STREET 1:** 200 SW 1ST AVE
- **STREET 2:** SUITE 1600
- **CITY:** FORT LAUDERDALE
- **STATE:** FL
- **ZIP:** 33301

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AUTONATION, INC. /FL
- **DATE OF NAME CHANGE:** 20090827

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AutoNation, Inc. /FL
- **DATE OF NAME CHANGE:** 20090827

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AUTONATION INC /FL
- **DATE OF NAME CHANGE:** 19990407
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CASCADE INVESTMENT, L.L.C.
- **CENTRAL INDEX KEY:** 0001052192

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **STREET 1:** 2365 CARILLON POINT
- **CITY:** KIRKLAND
- **STATE:** WA
- **ZIP:** 98033
- **BUSINESS PHONE:** 4258897900

**MAIL ADDRESS:**
- **STREET 1:** 2365 CARILLON POINT
- **CITY:** KIRKLAND
- **STATE:** WA
- **ZIP:** 98033

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** CASCADE INVESTMENT LLC
- **DATE OF NAME CHANGE:** 19980102

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 1)**

**AutoNation, Inc.**

*(Name of Issuer)*

**Common stock, par value $0.01 per share**

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Jeff Shim, Esq.**<br>2365 Carillon Point<br>Kirkland WA 98033<br>(425) 889-7900

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**05/01/2026**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Cascade Investment, L.L.C.** | Name of reporting person<br>**Cascade Investment, L.L.C.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**WASHINGTON** | Citizenship or place of organization<br>**WASHINGTON** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**7062629.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**7062629.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**7062629.00** | Aggregate amount beneficially owned by each reporting person<br>**7062629.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**21.1%** | Percent of class represented by amount in Row (11)<br>**21.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** All shares of the common stock, $0.01 par value per share (the "Common Stock") of AutoNation, Inc. (the "Issuer") held by Cascade Investment, L.L.C. ("Cascade") may be deemed to be beneficially owned by William H. Gates III as the sole member of Cascade.

Item 13 is based on 33,461,495 shares of Common Stock outstanding as of April 29, 2026, as reported on the Issuer's Form 10-Q filed on May 1, 2026.

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**William H. Gates III** | Name of reporting person<br>**William H. Gates III** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**7062629.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**7062629.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**7062629.00** | Aggregate amount beneficially owned by each reporting person<br>**7062629.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**21.1%** | Percent of class represented by amount in Row (11)<br>**21.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** All shares of the Common Stock of the Issuer held by Cascade may be deemed to be beneficially owned by William H. Gates III as the sole member of Cascade.

Item 13 is based on 33,461,495 shares of Common Stock outstanding as of April 29, 2026, as reported on the Issuer's Form 10-Q filed on May 1, 2026.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common stock, par value $0.01 per share

**(b) Name of Issuer:**
AutoNation, Inc.

**(c) Address of Issuer's Principal Executive Offices:**
200 SW 1st Ave, Fort Lauderdale, FL, 33301

This Amendment No. 1 to Schedule 13D ("Amendment") amends and supplements the Schedule 13D previously filed by Cascade Investment, L.L.C. ("Cascade") and William H. Gates III ("WHG," and together with Cascade, the "Reporting Persons") with the Securities and Exchange Commission on February 10, 2026, relating to the common stock, $0.01 par value per share (the "Common Stock"), of AutoNation, Inc. (the "Issuer"). Information in the Schedule 13D remains in effect except to the extent that it is amended or superseded by subsequently filed information, including information in this Amendment.

This Amendment is being filed due to an increase in the percentage of the Reporting Persons' ownership resulting from a decrease in the Issuer's outstanding shares of Common Stock, and not as a result of recent acquisitions by the Reporting Persons.

**Item 5. Interest in Securities of the Issuer**

**(a)**
See items 11 and 13 of the cover pages to this Amendment for the aggregate number of shares of Common Stock and percentage of Common Stock beneficially owned by each of the Reporting Persons.

**(b)**
See items 7 through 10 of the cover pages to this Amendment for the number of shares of Common Stock beneficially owned by each of the Reporting Persons as to which there is sole power to vote or to direct the vote, shared power to vote or to direct the vote, and sole or shared power to dispose or to direct the disposition.

**(c)**
None.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Cascade Investment, L.L.C.

**Signature:** /s/ Alan Heuberger

**Name/Title:** Alan Heuberger, Attorney-in-fact for, Michael Larson, Business Manager

**Date:** 05/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** William H. Gates III

**Signature:** /s/ Alan Heuberger

**Name/Title:** Alan Heuberger, Attorney-in-fact

**Date:** 05/05/2026