Quentin Blackford, CFO and CAO at NuVasive, holds 572.61K shares in Alphatec Holdings (Ticker: ATEC), holds 175.79K shares in Irhythm Technologies (Ticker: IRTC), holds 34.65K shares in Paragon 28 (Ticker: FNA). Most recently, Quentin Blackford Bought ― shares of Alphatec Holdings on Mar 08, 2024 for an estimated value of 256.60K.