Booth Bruce

Booth Bruce’s SEC Form 4 filings reveal a pronounced sell-side bias, with open-market sales totaling roughly $239.8 million against just $1.08 million in purchases across 221 reported trades. The most recent activity, all occurring between June 26 and June 29, 2026, consists of 25 open-market sales in Kymera Therapeutics (KYMR), with no corresponding buys. These transactions range from modest dispositions of roughly $8,800 to a single sale valued at approximately $3.5 million, with several others exceeding $1 million. The clustering of sales over just two trading days—14 on June 29 and 11 on June 26—suggests a deliberate liquidation of a substantial position rather than routine portfolio rebalancing. The dollar values in the recent KYMR trades are striking in their scale: the June 29 tranche alone includes sales of $2.06 million, $1.56 million, and $1.15 million, while the June 26 activity features a $3.5 million disposition alongside several six-figure transactions. Across the entire filing history, Bruce’s cumulative sell value dwarfs his buying activity by a factor of more than 220-to-one, and the absence of any recent purchases—or even compensatory grants or option exercises—underscores a consistent pattern of monetization. Notably, the filings contain no transactions coded as acquisitions (A, M, or C) in the recent window, meaning the sales are not tied to option exercises or vesting schedules that would otherwise explain the timing. For investors tracking insider behavior, the KYMR sales are notable not only for their frequency but for their concentration. The absence of any buy-side conviction—defined in the Form 4 legend as open-market purchases—combined with the sheer volume of shares sold in a 48-hour window, paints a picture of an insider actively reducing exposure. While the filings do not indicate whether Bruce is an officer or director, the magnitude of the transactions suggests a significant stakeholder. The data, taken at face value, shows a clear directional trend: selling, and selling heavily, with no recent indication of accumulation.