SHAREHOLDER INVESTIGATION: Halper Sadeh LLC Investigates CIR, PRTK, KDNY

NEW YORK, June 12, 2023

CIRCOR International, Inc. (NYSE: CIR)'s sale to investment funds managed by KKR for $49.00 per share in cash. If you are a CIRCOR shareholder, click here to learn more about your rights and options.

Paratek Pharmaceuticals, Inc. (NASDAQ: PRTK)'s sale to Gurnet Point Capital and Novo Holdings A/S. Under the terms of the agreement, Paratek shareholders will receive $2.15 per share in cash, plus a Contingent Value Right of $0.85 per share payable upon the achievement of $320 million in U.S. NUZYRA net sales (excluding certain permitted deductions, payments under Paratek's contract with ASPR-BARDA, certain government payments and certain royalty revenue) in any calendar year ending on or prior to December 31, 2026. If you are a Paratek shareholder, click here to learn more about your rights and options.  

Chinook Therapeutics, Inc. (NASDAQ: KDNY)'s sale to Novartis AG for $40.00 per share in cash. Chinook shareholders will also receive contingent value rights providing for payment of up to $4.00 per share upon the achievement of certain future regulatory milestones with respect to Chinook's lead product candidate, atrasentan. If you are a Chinook shareholder, click here to learn more about your rights and options.

Halper Sadeh LLC may seek increased consideration for shareholders, additional disclosures and information concerning the proposed transaction, or other relief and benefits on behalf of shareholders.

Shareholders are encouraged to contact the firm free of charge to discuss their legal rights and options. Please call Daniel Sadeh or Zachary Halper at (212) 763-0060 or email sadeh@halpersadeh.com or zhalper@halpersadeh.com.