PFSA Stock Falls 19% Amid Diagnostics Acquisition News
Profusa (PFSA) said it signed a non-binding term sheet to acquire a privately held commercial diagnostics and toxicology testing company. The target estimates 2025 net revenues of about $111 million. Profusa would issue shares equal to 19.99% plus non-voting convertible preferred stock, subject to approval, and expects about $7 million financing via convertible notes. PFSA shares fell sharply after the news.
How this was made

The 30-second read
Why it matters
Key trading drivers include deal economics (share issuance mix), financing structure (convertible note with OID and default step-up), and corporate actions (reverse split) that can affect liquidity, dilution expectations, and valuation.
Market read
The article provides concrete deal and financing terms that can reset near-term valuation and risk for PFSA, explaining the sharp pre-market decline.
What to watch
The 1-for-25 reverse split and convertible note terms (including higher default interest) can amplify downside if financing or deal approvals slip.
Background
Profusa (PFSA) is positioning to become a public diagnostics company with CLIA-certified laboratories and recurring revenues, following a non-binding acquisition term sheet.
Ticker impact
Profusa signed a non-binding term sheet to acquire a diagnostics/toxicology testing company, including share issuance and convertible note financing.
Near-term volatility likely remains elevated as the deal is non-binding and subject to diligence, definitive agreements, and shareholder approval.
The article discloses deal structure (19.99% common shares, remainder preferred), financing terms (about $7M convertible note), and a 1-for-25 reverse split, all of which can drive trading and risk repricing before closing.
Market effects
Signals continued consolidation interest in diagnostics and toxicology testing, potentially increasing competitive pressure for smaller CLIA lab operators.
Primarily US-focused due to CLIA-certified laboratories and addiction/pain/behavioral health provider revenue streams.
Limited direct global read-through; impact is mostly within US healthcare diagnostics services.
Counterpoint
The term sheet is non-binding and heavily conditional, so the market may be overpricing execution risk and dilution ahead of definitive agreements.
Key entities
- public_companyProfusa, Inc.
PFSA, the acquirer, announced a non-binding term sheet, convertible note financing, management changes, and a recent 1-for-25 reverse split.

