Castle Biosciences adopts amended bylaws with changes to meeting procedures and governance

CASTLE BIOSCIENCES INC

Board adopted amended and restated bylaws effective August 5, 2025, modifying quorum, advance notice, and proxy rules.
Advance notice window for stockholder proposals widened: meeting delayed >70 days (previously 30) triggers alternative deadline.
Quorum changed from majority of outstanding shares to majority of voting power; default approval threshold now majority of votes cast.
Universal proxy rules under Rule 14a-19 incorporated; stockholder nominees limited to number of directors to be elected.
Indemnification obligations expanded to maximum extent allowed by law; mandatory advancement of expenses clarified.

item 5.03item 9.01

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