Mathers Edward T

10% Owner Mathers Edward T buys 207,100 shares of KRRO at $11.11; stock down -77.6% from 52-week high amid unprofitable operations and revenue of $1.1M.

Mathers Edward T, a 10% owner, purchased 207,100 shares at $11.11 on 2026-03-10, increasing holdings by 19.0% to 1,297,893 shares and deploying $2.3M in capital. The transaction occurs within a cluster of 8 other insider buys over the past 14 days, suggesting coordinated management action. However, the stock trades at $11.50, down -77.6% from its 52-week high of $51.36, while the company remains unprofitable with net income of -$18.1M despite quarterly revenue of $1.1M and strong annual revenue growth of +181.5%. At the same ticker, Mathers' prior buy (2024-04-22) resulted in a -18.6% return over 90 days, and his cross-ticker track record shows mixed timing (66.67% win rate on buys). The confluence of material capital deployment by insiders, a depressed stock price relative to recent history, unprofitable fundamentals, and a prior loss-generating buy at this ticker warrants investor attention to whether this represents conviction in a turnaround or additional capital at risk in a struggling operation.

10% Owner Mathers buys 937,500 shares (937.5K) of SGP at $16.00; 14 other insiders also bought within 14 days

Mathers Edward T, a 10% owner, purchased 937,500 shares at $16.00 on 2026-02-09, increasing his holdings to 6,035,038 shares (+18.4% vs pre-transaction). The stock currently trades at $27.55, reflecting a 72% gain from the purchase price in just 4 trading days since listing. Most significantly, this purchase is part of a broader cluster in which 14 other insiders also bought within the past 14 days, indicating coordinated insider accumulation at lower valuations ahead of the recent price appreciation. While the stock is only 4 trading days into public trading and meaningful historical metrics are not yet available, the convergence of a major shareholder's large-scale purchase with a multi-insider cluster pattern warrants close examination of the transaction circumstances and any non-public information that may have motivated synchronized buying.

Director Edward T Mathers buys 500,000 shares at $16.00; 14-insider cluster buy in MBX (3 days post-IPO, now $21.50).

Edward T Mathers, a director of MBX Biosciences, purchased 500,000 shares at $16.00 for a total value of $8,000,000.00, increasing his holdings from 3,114,486 shares to 3,614,486 shares (+16.1% increase in shares held). This transaction occurs within a 14-insider cluster buy pattern in the past 14 days, indicating coordinated or parallel conviction among multiple insiders at a time of significant stock price appreciation—the stock has risen to $21.50 as of 2024-09-17, just 3 trading days after the recent listing. The clustering of insider purchases across the executive team, combined with the director's substantial $8.0M commitment, suggests alignment on valuation and business trajectory in the critical early trading window. Note: This filing involves a derivative-conversion transaction; the Form 4 Table II (derivative securities holdings) is not yet populated in this database, so the reported shares_after may not represent the insider's total economic position.