David R. Horn

Companies

• EDAP TMS SABoard member Feb 13, 2026 to now¹
• Seer, IncPresident Feb 7, 2024 to now²
• Seer, IncChief financial officer Dec 3, 2020 to now³

Holdings

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

Shares held

• Seer, Inc SEER486,650 shares⁴$987.9K at $2.03Aug 18, 2026
• ETEDAP TMS SA FOCL10,000 shares⁵$41.4K at $4.14Aug 14, 2026

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

Recent filings

• Aug 18, 2026Sold 7,309 shares at $2.03 of Seer, Inc⁴
• Aug 14, 2026Bought 10,000 shares at $4.75 of EDAP TMS SA⁵
• May 20, 2026Sold 7,303 shares at $1.69 of Seer, Inc⁶
• Feb 18, 2026Sold 7,743 shares at $1.99 of Seer, Inc⁷
• Feb 3, 2026Granted 79,000 shares of Seer, Inc⁸
• Nov 19, 2025Sold 6,797 shares at $1.97 of Seer, Inc⁹
• Aug 20, 2025Sold 6,827 shares at $2.04 of Seer, Inc¹⁰
• May 20, 2025Sold 6,760 shares at $2.08 of Seer, Inc¹¹
• Feb 18, 2025Shares withheld for tax 26,572 shares at $2.30 of Seer, Inc¹²
• Feb 4, 2025Sold 3,550 shares at $2.24 of Seer, Inc¹³
• Feb 22, 2024Sold 12,684 shares at $1.58 of Seer, Inc¹⁴
• Feb 6, 2024Granted 165,038 shares of Seer, Inc¹⁴
• Feb 5, 2024Sold 3,608 shares at $1.67 of Seer, Inc¹⁵
• Feb 21, 2023Sold 5,951 shares at $4.13 of Seer, Inc¹⁶
• Feb 15, 2023Granted 70,000 shares of Seer, Inc¹⁷
• Feb 7, 2023Sold 3,124 shares at $5.40 of Seer, Inc¹⁸
• Jan 17, 2023Sold 2,602 shares at $5.12 of Seer, Inc¹⁹
• Dec 8, 2022Sold 18,884 shares at $6.57 of Seer, Inc²⁰
• Feb 8, 2022Granted 62,000 shares of Seer, Inc²¹
• Feb 2, 2022Sold 2,944 shares at $17.40 of Seer, Inc²²
• Jan 3, 2022Sold 2,308 shares at $22.81 of Seer, Inc²³
• Dec 7, 2021Exercised options 28,818 shares at $3.47 of Seer, Inc²⁴
• Dec 6, 2021Sold 26,273 shares at $20.26 of Seer, Inc²⁴
• Nov 1, 2021Sold 3,888 shares at $38.28 of Seer, Inc²⁵
• Nov 1, 2021Sold 6,112 shares at $37.46 of Seer, Inc²⁵