Griffith William J.G. has been an active participant in insider transactions across three companies, with a notable bias toward buying. According to SEC Form 4 filings, Griffith has executed 87 trades totaling $38 million in purchases and $28 million in sales. The bulk of the buying activity has been concentrated in NTSK, with four major purchases on September 19, 2025, amounting to $16.68 million, $11.32 million, $4.39 million, and $5.61 million—collectively representing the largest single-day accumulation in the dataset. In contrast, the most significant sale occurred on December 15, 2025, when Griffith divested $15 million worth of PCOR shares.
Recent activity shows a shift toward non-monetary transactions, particularly in NTSK, with six filings on March 13, 2026, coded as "C" (conversion of derivative securities) but carrying no reported dollar value. Prior to that, Griffith executed a series of "J" (other acquisition or disposition) transactions in PCOR between November and December 2025, also with no disclosed value. While the overall trend leans toward accumulation—especially in NTSK—the December 2025 PCOR sale stands out as the largest single liquidation in the observed period. The absence of recent monetary trades suggests a possible focus on restructuring holdings rather than outright buying or selling.
AI-assisted summary