A settlement Wednesday by a breast implant company was just one of several recent cases offering an important lesson for corporations and their CEOs: Don’t hide important information from your financial regulators, your investors or your general counsel.

The U.S. Securities and Exchange Commission said that’s exactly what Hani Zeini, founder and then-CEO of Sientra Inc., in Santa Barbara, California, did. Zeini concealed damaging news about the company’s sole-source manufacturer of the silicon implants just days before Sientra closed a $60 million stock offering in 2015, the SEC alleged.