Form 4 Filing for PROKIDNEY CORP.

Brian J.G. Pereira, a director at PROKIDNEY CORP., acquired 135,000 stock options on May 28, 2026. These options, granted under the company's non-employee director compensation policy, allow the purchase of Class A Common Stock at a price of $1.81 per share. The options are exercisable and will vest in full on the earlier of the one-year anniversary of the grant date or the company's next annual general shareholder meeting. Following this transaction, Mr. Pereira holds 135,000 shares post-transaction.