J. Matthew Singleton

Companies

• Viking TherapeuticsBoard member Apr 28, 2015 to now¹
• Cubist PharmaceuticalsBoard member Jun 9, 2006 to Jun 14, 2013²

Holdings

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

Shares held

• VTViking Therapeutics VKTX12,650 shares³$317.6K at $25.11Jan 2, 2026

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

Recent filings

• Jan 2, 2026Granted 3,150 shares of Viking Therapeutics³
• Oct 25, 2024Sold 16,000 shares at $79.50 of Viking Therapeutics⁴
• Oct 25, 2024Exercised options 16,000 shares at $4.48 of Viking Therapeutics⁴
• Sep 20, 2024Sold 10,300 shares at $69.50 of Viking Therapeutics⁵
• Sep 20, 2024Exercised options 10,300 shares at $1.19 of Viking Therapeutics⁵
• Aug 21, 2024Sold 5,700 shares at $69.72 of Viking Therapeutics⁶
• Aug 21, 2024Exercised options 5,700 shares at $1.19 of Viking Therapeutics⁶
• Aug 19, 2024Sold 1,501 shares at $64.88 of Viking Therapeutics⁷
• Aug 19, 2024Sold 2,388 shares at $64.10 of Viking Therapeutics⁷
• Aug 19, 2024Sold 2,055 shares at $63.15 of Viking Therapeutics⁷
• Aug 19, 2024Sold 4,509 shares at $61.86 of Viking Therapeutics⁷
• Aug 19, 2024Sold 3,047 shares at $61.13 of Viking Therapeutics⁷
• Aug 19, 2024Sold 2,500 shares at $60.01 of Viking Therapeutics⁷
• Aug 19, 2024Exercised options 16,000 shares at $3.33 of Viking Therapeutics⁷
• Aug 14, 2024Sold 160 shares at $58.37 of Viking Therapeutics⁸
• Aug 14, 2024Sold 20,626 shares at $57.52 of Viking Therapeutics⁸
• Aug 14, 2024Exercised options 20,786 shares at $8.00 of Viking Therapeutics⁸