PTC Set to Join S&P 500; Lattice Semiconductor & Progyny to Join S&P MidCap 400; Domtar to Join S&P SmallCap 600PRNewsWire • 04/15/21
Computer Design Software Maker PTC Trades Near Buy Point With Second Quarter Earnings Report On TapInvestors Business Daily • 04/14/21
Here's How Much You'd Have If You Invested $1000 in PTC Inc. a Decade AgoZacks Investment Research • 04/13/21
PTC Inc. (PTC) CEO James Heppelmann on Q1 2021 Results - Earnings Call TranscriptSeeking Alpha • 01/28/21