(Mark One) ☒QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period endedMarch31, 2026 Or ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _____ to _____ Commission File Number: 001-38993 HEALTH CATALYST, INC.(Exact name of registrant as specified in its charter)________________ Delaware 45-3337483 (State or other jurisdiction of (I.R.S. Employer Identification Number) incorporation or organization) 10897 South River Front Parkway #300South Jordan UT 84095(Address of principal executive offices, including zip code) Securities registered pursuant to Section 12(b) of the Act: Name of exchange on which registered HCAT The Nasdaq Global Select Market 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 of1934 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 suchfiling requirements for the past 90 days. Yes☒No☐ Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405of 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 suchfiles). Yes☒No☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, oran emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growthcompany” in Rule 12b-2 of the Exchange Act. Emerging growthcompany Accelerated Filer Large accelerated filer Non-accelerated Filer Smaller reporting company If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any newor revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes☐No☒ As of May8, 2026, the Registrant had 73,894,020 shares of common stock outstanding. HEALTH CATALYST, INC. Special Note Regarding Forward-looking Statements As used in this Quarterly Report on Form 10-Q, unless expressly indicated or the context otherwise requires, references to “HealthCatalyst,” “we,” “us,” “our,” “the Company,” and similar references refer to Health Catalyst, Inc. and its consolidated subsidiaries. ThisQuarterly Report on Form 10-Q, including the section titled “Management’s Discussion and Analysis of Financial Condition and Results ofOperations,” includes forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (theSecurities Act), Section 21E of the Securities Exchange Act of 1934, as amended (the Exchange Act), and the Private Securities LitigationReform Act of 1995. Forward-looking statements are only predictions based on our management’s beliefs and assumptions and oninformation currently available to our management. All statements other than statements of historical facts are “forward-lookingstatements” for purposes of these provisions, including those relating to future events or our future financial performance and financialguidance. These forward-looking statements, which are subject to a number of risks, uncertainties, and assumptions, generally relate tofuture events or our future financial or operating performance. In some cases, you can identify these statements by forward-looking wordssuch as “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “design,” “intend,” “expect,” “could,” “plan,” “potential,” “predict,”“seek,” “should,” “would,” “target,” “project,” or “contemplate,” the negative of terms like these or other comparable terminology, andother words or terms of similar meaning in connection with any discussion of expectations, projections, plans, strategy, intentions, or futureresults of operations or financial performance. Forward-looking statements contained in this Quarterly Report on Form 10-Q include, butare not limited to, statements about our: •ability to attract new clients and retain and expand our relationships with existing clients;•ability to expand our service offerings, develop new platform features, and rollout and migrate existing DOS clients to our newplatform, Health Catalyst Ignite;•the effects of the migration of DOS clients to Ignite, including clients reducing or eliminating their spend with us and client churnor down-selling in connection with the migration to Ignite or otherwise;•future financial performance, including trends in revenue, costs of revenue, gross margin, operating expenses, and cost structure;•ability to c