Gary J. Nabel

Companies

• Candel TherapeuticsBoard member Aug 10, 2022 to now¹
• Opko Health Inc.Board member May 11, 2022 to now²
• Opko Health Inc.Chief Innovation Officer May 11, 2022 to now²
• SIGA TECHNOLOGIES INCBoard member Jun 17, 2021 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

• Opko Health Inc. OPK20,613,038 shares⁴$33.2M at $1.61Jul 26, 2024
• STSIGA TECHNOLOGIES INC SIGA73,754 shares⁵$235.3K at $3.19Jun 9, 2026
• CTCandel Therapeutics CADL5,353 shares⁶$43.8K at $8.19Jun 25, 2025

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

Recent filings

• Jun 9, 2026Returned to company 7,235 shares at $4.39 of SIGA TECHNOLOGIES INC⁵
• Jun 9, 2026Exercised options 24,116 shares of SIGA TECHNOLOGIES INC⁵
• Jun 25, 2025Granted 5,353 shares at $4.67 of Candel Therapeutics⁶
• Jun 10, 2025Returned to company 5,725 shares at $6.22 of SIGA TECHNOLOGIES INC⁷
• Jun 10, 2025Exercised options 19,084 shares of SIGA TECHNOLOGIES INC⁷
• Jul 24, 2024Granted 437,500 shares of Opko Health Inc.⁴
• Jun 11, 2024Returned to company 7,414 shares at $7.86 of SIGA TECHNOLOGIES INC⁸
• Jun 11, 2024Exercised options 24,712 shares of SIGA TECHNOLOGIES INC⁸
• Jan 8, 2024Bought 106,989 shares at $0.93 of Opko Health Inc.⁹
• Jan 8, 2024Bought 500 shares at $0.92 of Opko Health Inc.⁹
• Jan 8, 2024Bought 108,695 shares at $0.93 of Opko Health Inc.⁹
• Jun 13, 2023Returned to company 4,386 shares at $6.07 of SIGA TECHNOLOGIES INC¹⁰
• Jun 13, 2023Exercised options 14,620 shares of SIGA TECHNOLOGIES INC¹⁰
• May 5, 2023Bought 54,054 shares at $1.85 of Opko Health Inc.¹¹
• May 5, 2023Bought 20,009 shares at $1.85 of Opko Health Inc.¹¹
• May 5, 2023Bought 54,346 shares at $1.84 of Opko Health Inc.¹¹
• May 5, 2023Bought 34,338 shares at $1.84 of Opko Health Inc.¹¹
• May 5, 2023Bought 54,945 shares at $1.82 of Opko Health Inc.¹¹
• May 5, 2023Bought 26,407 shares at $1.85 of Opko Health Inc.¹¹
• May 5, 2023Bought 28,538 shares at $1.82 of Opko Health Inc.¹¹
• May 5, 2023Bought 10,928 shares at $1.83 of Opko Health Inc.¹¹
• May 5, 2023Bought 19,475 shares at $1.83 of Opko Health Inc.¹¹
• May 5, 2023Bought 79,334 shares at $1.82 of Opko Health Inc.¹¹
• May 5, 2023Bought 27,624 shares at $1.81 of Opko Health Inc.¹¹
• May 5, 2023Bought 27,777 shares at $1.80 of Opko Health Inc.¹¹