ARS Pharmaceuticals stock falls as CEO Lowenthal steps down By Investing.com
ARS Pharmaceuticals (NASDAQ:SPRY) shares fell 5.4% in after-hours after CEO/co-founder Richard Lowenthal stepped down. President Donn Casale was appointed CEO and director effective July 7, 2026. Lowenthal ceased serving as employee/officer effective July 6. ARS commercializes neffy, an epinephrine nasal spray for Type I allergic reactions/anaphylaxis.
How this was made
The 30-second read
Why it matters
A CEO transition can affect investor confidence in commercialization execution; however, the text provides no new operational metrics or guidance changes to confirm a fundamental deterioration.
Market read
Traders can react to the immediate after-hours selloff tied to management change and monitor for follow-through (continuity of commercialization and any new disclosures).
What to watch
The article doesn’t mention any change to neffy strategy, reimbursement, manufacturing, or upcoming catalysts—so the move may be more about perception than fundamentals.
Background
ARS Pharmaceuticals commercializes neffy (epinephrine nasal spray) for emergency treatment of Type I allergic reactions/anaphylaxis in adults and pediatric patients ≥33 lbs.
Ticker impact
ARS Pharmaceuticals shares fell 5.4% after-hours after CEO co-founder Richard Lowenthal stepped down and President Donn Casale took over July 7, 2026.
Near-term downside bias until investors assess continuity of the neffy commercialization plan under the new CEO.
The article attributes the after-hours drop directly to the CEO stepping down and names the successor, but provides no new financial guidance, trial data, or regulatory/product change.
Market effects
Biopharma investors may reprice execution risk around commercialization-stage products when CEOs step down.
Limited; the catalyst is company-specific rather than a broad market driver.
Low; no cross-border deal, regulator action, or supply-chain disruption is described.
Counterpoint
The board may have planned a succession path; the new CEO’s commercial track record (including scaling HEPLISAV-B) could stabilize sentiment quickly.
Key entities
- companyARS Pharmaceuticals Inc
NASDAQ-listed biopharmaceutical company commercializing neffy.
- personRichard Lowenthal
Co-founder and CEO stepping down; ceased serving as employee/officer effective July 6, 2026.
- personDonn Casale
President appointed CEO and Director effective July 7, 2026.
- productneffy
Epinephrine nasal spray indicated for emergency treatment of Type I allergic reactions, including anaphylaxis.


