After a 15-year run at the Securities and Exchange Commission, San Francisco Regional Office chief Marc Fagel is joining Gibson, Dunn & Crutcher, marking the firm’s latest gambit to deepen its bench in the Bay Area.

During Fagel’s tenure, the SEC pursued investigations of insider trading, improper backdating of stock options by Silicon Valley tech companies and violations of the Foreign Corrupt Practices Act. The office, which oversees enforcement for the northwest region, has recently focused on actions against investment advisers, fund managers and other industry players.