Strattec Security (STRT) gains 3.13% Posted on May 07, 2021 By News Team Strattec Security (NASDAQ: STRT) shares gained 3.13% to end trading Thursday at $45.42 per share – a net change of $1.38. Shares traded between $45.97 and $43.30 throughout the day. 20924 shares of Strattec Security exchanged hands.