Stelios Papadopoulos

Companies

• Ovid Therapeutics Inc.Board member Mar 4, 2025 to now¹
• Regulus Therapeutics Inc.Board member Oct 4, 2012 to now²
• ExelixisBoard member May 3, 2006 to now³
• BiogenBoard member Jul 9, 2008 to Jun 17, 2022⁴
• Eucrates Biomedical Acquisition Corp.Board member Oct 23, 2020 to Nov 27, 2020⁵
• GenVecBoard member Jun 26, 2006 to Jun 26, 2006⁶

Holdings

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

Shares held

• Exelixis EXEL1,197,595 shares⁷$75.0M at $62.59May 27, 2026
• Biogen BIIB27,470 shares⁸$6.4M at $232.66Jun 17, 2022
• OTOvid Therapeutics Inc. OVID217,578 shares⁹$477.6K at $2.19Apr 7, 2026
• RTRegulus Therapeutics Inc.0 shares¹⁰Jun 25, 2025

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

Recent filings

• May 27, 2026Granted 8,367 shares of Exelixis⁷
• Apr 7, 2026Granted 17,578 shares at $2.56 of Ovid Therapeutics Inc.⁹
• Nov 12, 2025Sold 100,000 shares at $43.55 of Exelixis¹¹
• Jun 25, 2025Returned to company 64,635 shares of Regulus Therapeutics Inc.¹⁰
• Jun 25, 2025U 976,253 shares of Regulus Therapeutics Inc.¹⁰
• May 29, 2025Granted 9,812 shares of Exelixis¹²
• May 15, 2025Sold 15,874 shares at $44.35 of Exelixis¹³
• May 15, 2025Exercised options 15,874 shares at $20.50 of Exelixis¹³
• May 15, 2025Sold 20,634 shares at $44.35 of Exelixis¹³
• May 15, 2025Exercised options 20,634 shares at $19.77 of Exelixis¹³
• Apr 30, 2025Granted 62,500 shares of Regulus Therapeutics Inc.¹⁴
• May 31, 2024Granted 18,838 shares of Exelixis¹⁵
• May 20, 2024Sold 11,437 shares at $21.00 of Exelixis¹⁶
• May 20, 2024Exercised options 11,686 shares at $19.57 of Exelixis¹⁶
• Mar 14, 2024Granted 250,000 shares at $1.60 of Regulus Therapeutics Inc.¹⁷
• Jun 1, 2023Granted 20,718 shares of Exelixis¹⁸
• Apr 13, 2023Granted 222,198 shares at $0.90 of Regulus Therapeutics Inc.¹⁹
• Jun 15, 2022Granted 2,255 shares of Biogen⁸
• May 26, 2022Granted 19,575 shares of Exelixis²⁰
• Feb 22, 2022Sold 84,515 shares at $19.56 of Exelixis²¹
• Nov 30, 2021Granted 2,222,222 shares at $0.36 of Regulus Therapeutics Inc.²²