Seer’s finance chief will leave Oct. 1. A company finance VP will take over.
Seer (SEER) announced that CFO David Horn will leave on October 1, 2026, to join a private company. Charles Endweiss, VP of Financial Planning & Analysis, will take over as Treasurer and principal financial officer on the same date. The CEO praised Horn's contributions and Endweiss's expertise.
How this was made
The 30-second read
Why it matters
The CFO transition is a routine leadership change with limited immediate financial impact but could influence future strategic decisions.
Market read
The announcement is a primary disclosure of an executive change, modest relevance for traders monitoring Seer.
What to watch
Potential hidden cost synergies or strategic shifts under the new CFO are not disclosed.
Background
Seer is a Nasdaq‑listed proteomics company that provides deep, unbiased proteomic insights.
Ticker impact
Seer announced that CFO David Horn will depart on Oct. 1, 2026 and VP Charles Endweiss will assume the CFO role.
Potential modest price movement around the announcement; no immediate directional bias.
Executive changes are material but the company is small and the transition is internal, limiting market impact.
Market effects
Minimal; the proteomics sector may note a leadership change but no broader impact.
None; company is US‑based with limited regional exposure.
Low; no global market shift expected.
Counterpoint
The CFO departure could be seen as a risk if the new CFO lacks experience in capital markets.
Key entities
- executiveDavid Horn
Outgoing President, CFO and Treasurer.
- executiveCharles Endweiss
Incoming CFO, previously VP of FP&A.

