Once the reverse stock split becomes effective, stockholders holding shares through a brokerage account or in book-entry form will have their shares automatically adjusted to the reflect the 1:9 reverse stock split. Existing stockholders holding common stock certificates will receive a Letter of Transmittal from the Company's transfer agent, Computershare, Inc. with specific instructions regarding the exchange of shares. About Sonoma Pharmaceuticals, Inc. Sonoma is a specialty pharmaceutical company that develops and markets unique and effective solutions for the treatment of dermatological conditions and advanced tissue care.