SEC Insider Transactions from WELCH DANIEL G.

Last updated: 2026-03-14 11:36 UTC | Total transactions: 21

WELCH DANIEL G has filed 21 insider transactions across 4 companies since February 2023.

Most recent transaction: a grant/award of 51804 shares of Structure Therapeutics Inc. ($GPCR) on June 23, 2025.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
June 23, 2025 Structure Therapeutics Inc. $GPCR WELCH DANIEL G Not found A Share Option (right to buy) 51804 $0.00 51,804.0000 172,051,000 9999.99% 0.03%
May 15, 2025 Ultragenyx Pharmaceutical Inc. $RARE WELCH DANIEL G Not found A Common Stock 5740 $0.00 32,690.0000 90,538,118 21.30% 0.01%
May 15, 2025 Ultragenyx Pharmaceutical Inc. $RARE WELCH DANIEL G Not found A Stock Option (Right to Buy) 10787 $0.00 10,787.0000 90,538,118 9999.99% 0.01%
May 14, 2025 PROTHENA CORP PUBLIC LTD CO $PRTA WELCH DANIEL G Not found A Stock Option (Right to Buy) 20183 $0.00 20,183.0000 53,772,000 9999.99% 0.04%
June 25, 2024 Structure Therapeutics Inc. $GPCR WELCH DANIEL G Not found A Share Option (right to buy) 37500 $0.00 37,500.0000 139,710,000 9999.99% 0.03%
June 18, 2024 Ultragenyx Pharmaceutical Inc. $RARE WELCH DANIEL G Not found A Stock Option (Right to Buy) 9900 $0.00 9,900.0000 73,543,862 9999.99% 0.01%
June 18, 2024 Ultragenyx Pharmaceutical Inc. $RARE WELCH DANIEL G Not found A Common Stock 5345 $0.00 26,950.0000 73,543,862 24.74% 0.01%
May 24, 2024 Nuvation Bio Inc. $NUVB WELCH DANIEL G Not found M Class A Common Stock 366744 $1.64 659,947.0000 0 125.08% 0.00%
May 24, 2024 Nuvation Bio Inc. $NUVB WELCH DANIEL G Not found M Class A Common Stock 293203 $1.74 293,203.0000 0 9999.99% 0.00%
May 24, 2024 Nuvation Bio Inc. $NUVB WELCH DANIEL G Not found M Stock Option (Right to Buy) 293203 $0.00 19,547.0000 0 93.75% 0.00%
May 24, 2024 Nuvation Bio Inc. $NUVB WELCH DANIEL G Not found M Stock Option (Right to Buy) 366744 $0.00 0.0000 0 100.00% 0.00%
May 15, 2024 PROTHENA CORP PUBLIC LTD CO $PRTA WELCH DANIEL G Not found A Stock Option (Right to Buy) 15000 $0.00 15,000.0000 53,216,000 9999.99% 0.03%
Feb. 21, 2024 PROTHENA CORP PUBLIC LTD CO $PRTA WELCH DANIEL G Not found A Stock Option (Right to Buy) 132000 $0.00 132,000.0000 53,216,000 9999.99% 0.25%
Aug. 3, 2023 Structure Therapeutics Inc. $GPCR WELCH DANIEL G Director J Stock option (right to buy) 411000 $7.97 973,622.0000 114,759,000 29.68% 0.36%
Aug. 3, 2023 Structure Therapeutics Inc. $GPCR WELCH DANIEL G Director J Stock option (right to buy) 205500 $7.97 973,622.0000 114,759,000 26.75% 0.18%
Aug. 3, 2023 Structure Therapeutics Inc. $GPCR WELCH DANIEL G Director J Stock option (right to buy) 205500 $7.97 973,622.0000 114,759,000 26.75% 0.18%
June 7, 2023 Ultragenyx Pharmaceutical Inc. $RARE WELCH DANIEL G Director A Common Stock 3860 $0.00 21,605.0000 69,914,225 21.75% 0.01%
June 7, 2023 Ultragenyx Pharmaceutical Inc. $RARE WELCH DANIEL G Director A Stock Option (Right to Buy) 7110 $0.00 7,110.0000 69,914,225 9999.99% 0.01%
May 15, 2023 Nuvation Bio Inc. $NUVB WELCH DANIEL G Director A Stock Option (Right to Buy) 366744 $0.00 366,744.0000 0 9999.99% 0.00%
Feb. 7, 2023 Structure Therapeutics Inc. $GPCR WELCH DANIEL G Director C Ordinary Shares 123508 $0.00 123,508.0000 9,584,000 9999.99% 1.29%
Feb. 7, 2023 Structure Therapeutics Inc. $GPCR WELCH DANIEL G Director C Series B Preferred Shares 123508 $0.00 0.0000 9,584,000 100.00% 1.29%