# EDGAR Filing Document

**Accession Number:** 0001564406
**File Stem:** 0001193125-23-073251
**Filing Date:** 2023-3
**Character Count:** 6682
**Document Hash:** f73182bf1d9341a03495d9ef7a0fa581
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-073251.hdr.sgml**: 20230317

**ACCESSION NUMBER**: 0001193125-23-073251

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 7

**FILED AS OF DATE**: 20230317

**DATE AS OF CHANGE**: 20230317

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Oak Street Health, Inc.
- **CENTRAL INDEX KEY:** 0001564406
- **STANDARD INDUSTRIAL CLASSIFICATION:** SERVICES-HEALTH SERVICES [8000]
- **IRS NUMBER:** 843446686
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39427
- **FILM NUMBER:** 23740723

**BUSINESS ADDRESS:**
- **STREET 1:** 30 W. MONROE ST., STE. 1200
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603
- **BUSINESS PHONE:** 312-773-3374

**MAIL ADDRESS:**
- **STREET 1:** 30 W. MONROE ST., STE. 1200
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Oak Street Health, LLC
- **DATE OF NAME CHANGE:** 20121211

##### [**Table of Contents**](#toc)

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**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

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**SCHEDULE 14A INFORMATION** 

**Proxy Statement Pursuant to Section 14(a)** 

**of the Securities Exchange Act of 1934** 

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Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

Check the appropriate box:

 ☐ Preliminary Proxy Statement

 ☐ **Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))**

 ☐ Definitive Proxy Statement

 ☒ Definitive Additional Materials

 ☐ Soliciting Material Pursuant to §240.14a-12

## OAK STREET HEALTH, INC.
**(Name of registrant as specified in its charter)** 

**(Name of Person(s) Filing Proxy Statement, if other than the Registrant)** 

Payment of Filing Fee (Check the appropriate box):

 ☒ No fee required.

 ☐ Fee paid previously with preliminary materials.

 ☐ Fee computed by table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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##### [**Table of Contents**](#toc)

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| ![LOGO](g375585sp4a.jpg) <br>P.O. BOX 8016, CARY, NC 27512-9903 | **Oak Street Health, Inc.** <br> **Important Notice Regarding the Availability**<br> **of Proxy Materials** <br>**Annual Meeting of Stockholders to be held on** <br> **April 27, 2023** <br> **For Stockholders of record as of March 07, 2023** <br>**This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. This is not a ballot. You cannot use this notice to vote your shares. We encourage you to access and review all of the important information contained in the proxy materials before voting.** <br>**To view the proxy materials, and to register in advance to attend the meeting, go to: www.proxydocs.com/OSH** <br>**To vote your proxy while visiting this site, you will need the 12 digit control number in the box below.**<br>Under United States Securities and Exchange Commission rules, proxy materials do not have to be delivered in paper. Proxy materials can be distributed by making them available on the Internet. |

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| ![LOGO](g375585sp4b.jpg) | **For a convenient way to view proxy materials and VOTE go to www.proxydocs.com/OSH**<br>**Have the 12 digit control number located in the shaded box above available when you access the website and follow the instructions.** | ![LOGO](g375585sp4c.jpg) |
|  | *If you want to receive a paper or e-mail copy of the proxy materials, including the Proxy Statement and Annual Report on Form 10-K, you must request one. There is no charge to you for requesting a copy. In order to receive a paper package in time for this year's annual meeting, you must make this request on or before April 17, 2023.* |  |
|  | ***To order a paper or email copy of the proxy materials, use one of the following methods.*** |  |

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| &nbsp;&nbsp;&nbsp; ![LOGO](g375585sp4d.jpg) <br> **INTERNET**<br> **www.investorelections.com/OSH** | ![LOGO](g375585sp4e.jpg) <br> **TELEPHONE**<br> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(866) 648-8133**  | <br> ![LOGO](g375585sp4f.jpg) <br> **\* E-MAIL**<br> **paper@investorelections.com** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; When requesting via the Internet or telephone you will need the 12 digit control number located in the shaded box above. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; When requesting via the Internet or telephone you will need the 12 digit control number located in the shaded box above. | \* If requesting materials by e-mail, please send a blank e-mail with the 12 digit control number (located above) in the subject line. No other requests, instructions OR other inquiries should be included with your e-mail requesting materials. |

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| &nbsp;&nbsp;**Oak Street Health, Inc.** | &nbsp;&nbsp;**Oak Street Health, Inc.** |
| &nbsp;&nbsp;&nbsp;**Meeting Type:** Annual Meeting of Stockholders | &nbsp;&nbsp;&nbsp;**Meeting Type:** Annual Meeting of Stockholders |
| &nbsp;&nbsp;&nbsp;**Date:** | Thursday, April 27, 2023 |
| &nbsp;&nbsp;&nbsp;**Time:** | 8:30 AM, Central Time |
| &nbsp;&nbsp;&nbsp;**Place:** | Annual Meeting to be held live via the Internet - please visit |
|  | www.proxydocs.com/OSH for more details. |
| &nbsp;&nbsp;&nbsp;**You must register in advance to attend the meeting online.** | &nbsp;&nbsp;&nbsp;**You must register in advance to attend the meeting online.** |
| &nbsp;&nbsp; **SEE REVERSE FOR FULL AGENDA** | &nbsp;&nbsp; **SEE REVERSE FOR FULL AGENDA** |

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##### [**Table of Contents**](#toc)
**Oak Street Health, Inc.** 

**Annual Meeting of Stockholders** 

**THE BOARD OF DIRECTORS RECOMMENDS YOU VOTE FOR THE FOLLOWING NOMINEES AND FOR PROPOSALS 2 AND 3.** 

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|  | **PROPOSAL** |
| 1. | To elect four nominees to serve as directors, as recommended by the Nominating and Corporate Governance Committee of our Board of Directors. |
|  | 1.01 Dr. Regina Benjamin |
|  | 1.02 Cheryl Dorsey |
|  | 1.03 Julie Klapstein |
|  | 1.04 Geoffrey Price |
| 2. | To ratify the appointment of Ernst & Young LLP as Oak Street Health, Inc.'s independent registered public accounting firm for the year ending December 31, 2023. |
| 3. | To approve, by an advisory vote, the compensation of Oak Street Health, Inc.'s named executive officers, as disclosed in the proxy statement. |
|  | **NOTE:** In their discretion, the proxy holders may vote on such other business as may properly come before the Annual Meeting or any postponement or adjournment of the Annual Meeting. |

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