OSH CLASS ACTION NOTICE: Glancy Prongay & Murray LLP Files Securities Fraud Lawsuit Against Oak Street Health, Inc.

Glancy Prongay & Murray LLP (“GPM”), announces that it has filed a class action lawsuit in the United States District Court for the Northern District of Illinois captioned Allison v. Oak Street Health, Inc., et al., (Case No. 1:22-cv-00149) on behalf of persons and entities that purchased or otherwise acquired Oak Street Health, Inc. (“Oak Street” or the “Company”) (NYSE: OSH) securities between August 6, 2020 and November 8, 2021, inclusive (the “Class Period”). Plaintiff pursues claims under Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 (the “Exchange Act”).

Investors are hereby notified that they have 60 days from this notice to move the Court to serve as lead plaintiff in this action.

If you suffered a loss on your Oak Street investments or would like to inquire about potentially pursuing claims to recover your loss under the federal securities laws, you can submit your contact information at www.glancylaw.com/cases/oak-street-health-inc/. You can also contact Charles H. Linehan, of GPM at 310-201-9150, Toll-Free at 888-773-9224, or via email at shareholders@glancylaw.com or visit our website at www.glancylaw.com to learn more about your rights.

On November 8, 2021, Oak Street disclosed that on November 1, 2021 the Company received a civil investigative demand (“CID”) from the United States Department of Justice (“DOJ”). According to the CID, the DOJ was investigating whether the Company violated the False Claims Act. The CID also requests documents and information related to the Oak Street’s relationships with “third-party marketing agents” and Oak Street’s “provision of free transportation to federal health care beneficiaries.”

On this news, the Company’s share price fell $9.75, or more than 20%, to close at $37.14 per share on November 9, 2021, on unusually heavy trading volume.

The complaint filed in this class action alleges that throughout the Class Period, Defendants made materially false and/or misleading statements, as well as failed to disclose material adverse facts about the Company’s business, operations, and prospects. Specifically, Defendants failed to disclose to investors: (1) that Oak Street maintained relationships with third-party marketing agents likely to provoke law enforcement scrutiny; (2) that Oak Street was providing free transportation to federal health care beneficiaries in a manner that would provoke law enforcement scrutiny; (3) that these activities may be violations of the False Claims Act; (4) that, as such, Oak Street was at heightened risk of investigation by the DOJ and/or other federal law enforcement agencies; (5) that, as a result, Oak Street was subject to adverse impacts related to defense and settlement costs and diversion of management resources; and (6) that, as a result of the foregoing, Defendants’ positive statements about the Company’s business, operations, and prospects were materially misleading and/or lacked a reasonable basis.

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If you purchased or otherwise acquired Oak Street securities during the Class Period, you may move the Court no later than 60 days from this notice to ask the Court to appoint you as lead plaintiff. To be a member of the Class you need not take any action at this time; you may retain counsel of your choice or take no action and remain an absent member of the Class. If you wish to learn more about this action, or if you have any questions concerning this announcement or your rights or interests with respect to these matters, please contact Charles Linehan, Esquire, of GPM, 1925 Century Park East, Suite 2100, Los Angeles California 90067 at 310-201-9150, Toll-Free at 888-773-9224, by email to shareholders@glancylaw.com, or visit our website at www.glancylaw.com. If you inquire by email please include your mailing address, telephone number and number of shares purchased.

This press release may be considered Attorney Advertising in some jurisdictions under the applicable law and ethical rules.

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