David R. Walt

Companies

• Quanterix (United States)Board member Dec 6, 2017 to now¹
• EXICURE, INC.Board member Sep 28, 2017 to Jun 8, 2020²
• Dare Bioscience, Inc.Board member Sep 25, 2015 to Jan 5, 2017³
• IlluminaBoard member Jan 6, 2006 to Apr 11, 2016⁴

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Quanterix (United States) QTRX1,872,890 shares⁵$5.2M at $2.79Jan 2, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Jan 2, 2026Granted 1,215 shares of Quanterix (United States)⁵
• Oct 1, 2025Granted 2,594 shares at $5.54 of Quanterix (United States)⁶
• Jul 1, 2025Granted 2,148 shares at $6.69 of Quanterix (United States)⁷
• Jun 13, 2025Bought 123,990 shares at $6.14 of Quanterix (United States)⁸
• Jun 12, 2025Bought 36,010 shares at $6.23 of Quanterix (United States)⁸
• Jun 9, 2025Bought 78,131 shares at $5.34 of Quanterix (United States)⁹
• Jun 6, 2025Bought 131,869 shares at $5.43 of Quanterix (United States)⁹
• Apr 1, 2025Granted 2,156 shares at $6.67 of Quanterix (United States)¹⁰
• Jan 2, 2025Granted 7,435 shares of Quanterix (United States)¹¹
• Aug 20, 2024Bought 47,000 shares at $13.29 of Quanterix (United States)¹²
• Jan 2, 2024Granted 2,947 shares of Quanterix (United States)¹³
• Mar 9, 2023Gift 1,000 shares of Quanterix (United States)¹²
• Jan 3, 2023Granted 8,083 shares of Quanterix (United States)¹⁴
• Oct 12, 2022Gift 1,000 shares of Quanterix (United States)¹²
• Aug 10, 2022Bought 150,000 shares at $8.62 of Quanterix (United States)¹⁵
• Jan 3, 2022Granted 2,668 shares of Quanterix (United States)¹⁶