Arnon Rosenthal

Companies

• Alector (United States)Board member Feb 6, 2019 to now¹
• Alector (United States)Chief executive officer Feb 6, 2019 to now¹

Holdings

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

Shares held

• AUAlector (United States) ALEC3,297,100 shares²$6.4M at $1.94Sep 4, 2026

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

Recent filings

• Sep 3, 2026Sold 72,606 shares at $2.66 of Alector (United States)²
• Aug 19, 2026Gift 350,000 shares of Alector (United States)³
• Aug 19, 2026Gift 350,000 shares of Alector (United States)³
• Aug 19, 2026Gift 350,000 shares of Alector (United States)³
• Aug 19, 2026Gift 1,050,000 shares of Alector (United States)³
• Jun 2, 2026Sold 87,216 shares at $1.97 of Alector (United States)⁴
• Mar 13, 2026Granted 116,246 shares of Alector (United States)⁵
• Mar 2, 2026Sold 81,864 shares at $2.12 of Alector (United States)⁶
• Dec 3, 2025Sold 104,347 shares at $1.12 of Alector (United States)⁷
• Nov 10, 2025Granted 174,167 shares of Alector (United States)⁸
• Sep 2, 2025Sold 51,562 shares at $2.50 of Alector (United States)⁹
• Jul 1, 2025Granted 137,125 shares of Alector (United States)¹⁰
• Jun 2, 2025Sold 52,087 shares at $1.34 of Alector (United States)¹¹
• Mar 3, 2025Sold 40,330 shares at $1.47 of Alector (United States)¹²
• Dec 2, 2024Sold 52,172 shares at $2.52 of Alector (United States)¹³
• Oct 1, 2024Granted 610,500 shares of Alector (United States)¹⁴
• Sep 3, 2024Sold 26,499 shares at $4.88 of Alector (United States)¹⁵
• Jun 3, 2024Sold 25,135 shares at $4.80 of Alector (United States)¹⁶
• Mar 4, 2024Sold 18,837 shares at $6.92 of Alector (United States)¹⁷
• Dec 4, 2023Sold 23,831 shares at $5.56 of Alector (United States)¹⁸
• Oct 1, 2023Granted 397,600 shares of Alector (United States)¹⁹
• Sep 5, 2023Sold 5,647 shares at $5.19 of Alector (United States)²⁰
• Jun 2, 2023Sold 5,255 shares at $6.90 of Alector (United States)²¹
• Mar 17, 2023Sold 15,186 shares at $6.22 of Alector (United States)²²
• Mar 3, 2023Granted 42,990 shares of Alector (United States)²²