Healthcare Services Group Inc

HEALTHCARE SERVICES GROUP, INC. (Exact name of registrant as specified in its charter) Pennsylvania 23-2018365 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.)

3220 Tillman Drive , Suite 300 , Bensalem , Pennsylvania (Address of principal executive office)

Registrant's telephone number, including area code: ( 215 ) 639-4274

Former name, former address and former fiscal year, if changed since last report: Not Applicable

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes þ No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes þ No ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐ No þ

Indicate the number of shares outstanding of each of the registrant's classes of common stock, as of the latest practicable date. Common Stock, $0.01 par value: 67,432,007 shares outstanding as of October 21, 2026.

Healthcare Services Group, Inc. Quarterly Report on Form 10-Q For the Period Ended September 30, 2026

TABLE OF CONTENTS Page PART I Item 1. Financial Statements (Unaudited) 1 Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations 37 Item 3. Quantitative and Qualitative Disclosures About Market Risk 48 Item 4. Controls and Procedures 48

PART II Item 1. Legal Proceedings 50 Item 1A. Risk Factors 50 Item 2. Unregistered Sales of Equity Securities and Use of Proceeds 50 Item 3. Defaults Upon Senior Securities 51 Item 4. Mine Safety Disclosures 51 Item 5. Other Information 51 Item 6. Exhibits 51