SANTA ANA, Calif. — Federal officials have unsealed indictments charging Broadcom co-founder Henry T. Nicholas III with drug charges and crimes related to stock options backdating.

The federal grand jury indictments unsealed Thursday charge Nicholas with a total of 25 counts, including conspiracy, securities fraud, false certification of financial reports and filing false statements with the Securities and Exchange Commission. He is also accused of conspiracy to distribute and acquire controlled substances.

Last month, securities regulators charged Nicholas and co-founder Henry Samueli in a civil suit with falsifying the company's reported income, leading to the largest accounting restatement yet because of backdating stock options.