Health Catalyst appoints largest shareholder's CEO Matt Arens to board; Kolb not re-elected

Health Catalyst, Inc.

Matt Arens, CEO/Founder of First Light (13.9M shares, ~19% ownership), appointed to Board effective Dec 1, 2025.
Board expanded from 8 to 9 directors; Arens fills new seat as Class I director until 2026 annual meeting.
Arens waives director compensation except expense reimbursement; enters voting/confidentiality agreement with First Light.
Director Matthew Kolb will not stand for re-election at 2026 annual meeting; no disagreement cited.
Board will reduce from 9 to 8 directors effective just before the 2026 annual meeting.

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