SEC Insider Transactions from RIEFLIN WILLIAM JL.

Last updated: 2026-03-14 11:29 UTC | Total transactions: 8

RIEFLIN WILLIAM JL has filed 8 insider transactions across 2 companies since March 2023.

Most recent transaction: a grant/award of 130000 shares of Lyell Immunopharma, Inc. ($LYEL) on May 15, 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
May 15, 2025 Lyell Immunopharma, Inc. $LYEL RIEFLIN WILLIAM JL Not found A Option (right to buy) 130000 $0.00 130,000.0000 295,228,868 9999.99% 0.04%
June 14, 2024 Lyell Immunopharma, Inc. $LYEL RIEFLIN WILLIAM JL Not found A Option (right to buy) 130000 $0.00 130,000.0000 0 9999.99% 0.00%
May 23, 2024 RAPT Therapeutics, Inc. $RAPT RIEFLIN WILLIAM JL Not found A Stock Option (right to buy) 36490 $0.00 36,490.0000 0 9999.99% 0.00%
March 28, 2024 RAPT Therapeutics, Inc. $RAPT RIEFLIN WILLIAM JL Not found A Stock Option (right to buy) 11871 $7.58 11,871.0000 0 9999.99% 0.00%
Sept. 8, 2023 Lyell Immunopharma, Inc. $LYEL RIEFLIN WILLIAM JL Director A Option (right to buy) 55000 $0.00 55,000.0000 0 9999.99% 0.00%
June 16, 2023 Lyell Immunopharma, Inc. $LYEL RIEFLIN WILLIAM JL Director A Option (right to buy) 65000 $0.00 65,000.0000 0 9999.99% 0.00%
May 24, 2023 RAPT Therapeutics, Inc. $RAPT RIEFLIN WILLIAM JL Director A Stock Option (right to buy) 12940 $0.00 12,940.0000 0 9999.99% 0.00%
March 31, 2023 RAPT Therapeutics, Inc. $RAPT RIEFLIN WILLIAM JL Director A Stock Option (right to buy) 6026 $14.52 6,026.0000 0 9999.99% 0.00%