Miller Michael Francis, Chief Technology Officer at Quanterix (QTRX), has filed 86 Form 4 transactions, all in that single company. The pattern is entirely mechanical. There are no open-market purchases or sales, no option exercises that generated cash, and no gifts. Every transaction falls into two categories: option exercises (code M) and shares withheld to cover tax (code F).
The most recent cluster, dated October 15, 2026, shows five option exercises with a value of zero, paired with four tax-withholding events valued at $764.43, $340.77, $125.87, and $76.75. That same structure repeats on September 15, 2026, with exercises and withholdings of $677.28, $301.92, $111.52, and $68.00. An additional withholding of $128.16 appears on August 31, 2026, and the August 15, 2026 filing shows withholdings of $644.91 and $287.49 alongside three exercises.
The dollar values are small, and the direction is neutral. Francis is not buying or selling on conviction. He is receiving option grants as compensation, exercising them on a schedule, and immediately surrendering a portion of the shares to cover the tax liability. The total buy value and total sell value are both zero. The recent trades show no shift in behavior, no accumulation, and no distribution. The filings describe a routine compensation cycle, not a directional bet on the stock.
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