Justin Chakma

Companies

• Silverback TherapeuticsChief Business Officer Nov 10, 2022 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

• Silverback Therapeutics SPRY0 shares²Nov 12, 2025

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

Recent filings

• Nov 12, 2025Sold 136,380 shares at $8.86 of Silverback Therapeutics²
• Nov 12, 2025Sold 30,000 shares at $8.91 of Silverback Therapeutics²
• Nov 12, 2025Exercised options 30,000 shares at $0.84 of Silverback Therapeutics²
• Dec 13, 2024Sold 27,272 shares at $12.06 of Silverback Therapeutics³
• Dec 13, 2024Exercised options 27,272 shares at $1.44 of Silverback Therapeutics³
• Dec 12, 2024Sold 117,333 shares at $12.27 of Silverback Therapeutics³
• Dec 12, 2024Exercised options 117,333 shares at $0.84 of Silverback Therapeutics³
• Dec 10, 2024Sold 50,000 shares at $13.15 of Silverback Therapeutics⁴
• Dec 10, 2024Exercised options 50,000 shares at $0.84 of Silverback Therapeutics⁴
• Dec 6, 2024Sold 50,000 shares at $14.23 of Silverback Therapeutics⁵
• Dec 6, 2024Exercised options 50,000 shares at $0.84 of Silverback Therapeutics⁵
• Dec 5, 2024Sold 49,640 shares at $14.13 of Silverback Therapeutics⁵
• Dec 5, 2024Exercised options 49,640 shares at $0.84 of Silverback Therapeutics⁵
• Dec 4, 2024Sold 45,000 shares at $13.95 of Silverback Therapeutics⁵
• Dec 4, 2024Exercised options 45,000 shares at $0.84 of Silverback Therapeutics⁵
• Dec 3, 2024Sold 45,000 shares at $13.19 of Silverback Therapeutics⁶
• Dec 3, 2024Exercised options 41,740 shares at $0.84 of Silverback Therapeutics⁶
• Dec 3, 2024Exercised options 3,260 shares at $0.84 of Silverback Therapeutics⁶
• Dec 2, 2024Sold 45,000 shares at $13.67 of Silverback Therapeutics⁶
• Dec 2, 2024Exercised options 45,000 shares at $0.84 of Silverback Therapeutics⁶
• Nov 27, 2024Sold 25,000 shares at $14.39 of Silverback Therapeutics⁷
• Nov 26, 2024Sold 42,186 shares at $14.05 of Silverback Therapeutics⁷
• Nov 25, 2024Sold 32,814 shares at $14.00 of Silverback Therapeutics⁷
• Nov 8, 2022Granted 236,380 shares of Silverback Therapeutics⁸