Silicon Labs Inc (SLAB) gains 6.88% Posted on April 24, 2021 By News Team Silicon Labs Inc (NASDAQ: SLAB) shares gained 6.88% to end trading Friday at $154.60 per share – a net change of $9.95. Shares traded between $162.28 and $152.45 throughout the day. 1313437 shares of Silicon Labs Inc exchanged hands.