SEC Insider Transactions from Olson Tiffany.

Last updated: 2026-03-14 11:28 UTC | Total transactions: 19

Olson Tiffany has filed 19 insider transactions across 2 companies since May 2023.

Most recent transaction: a grant/award of 28609 shares of MIMEDX GROUP, INC. ($MDXG) on June 18, 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 18, 2025 MIMEDX GROUP, INC. $MDXG Olson Tiffany Director A Common Stock 28609 $6.47 57,597.0000 149,049,197 98.69% 0.02%
May 21, 2025 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Common Stock 8673 $0.00 25,906.0000 29,255,000 50.33% 0.03%
May 21, 2025 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Restricted Stock Units 8673 $0.00 0.0000 29,255,000 100.00% 0.03%
May 22, 2025 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director A Restricted Stock Units 13667 $0.00 13,667.0000 29,255,000 9999.99% 0.05%
July 1, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Common Stock 830 $0.00 17,233.0000 26,802,000 5.06% 0.00%
July 1, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director A Restricted Stock Units 830 $0.00 830.0000 26,802,000 9999.99% 0.00%
July 1, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Restricted Stock Units 830 $0.00 0.0000 26,802,000 100.00% 0.00%
July 1, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director A Stock option (right to buy) 3379 $0.00 3,379.0000 26,802,000 9999.99% 0.01%
June 5, 2024 MIMEDX GROUP, INC. $MDXG Olson Tiffany Director A Common Stock 28988 $7.26 28,988.0000 145,962,462 9999.99% 0.02%
May 25, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Common Stock 8636 $0.00 16,403.0000 26,802,000 111.19% 0.03%
May 25, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Restricted Stock Units 8636 $0.00 0.0000 26,802,000 100.00% 0.03%
May 23, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director A Restricted Stock Units 8673 $0.00 8,673.0000 26,802,000 9999.99% 0.03%
May 10, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Common Stock 487 $0.00 7,767.0000 26,802,000 6.69% 0.00%
May 10, 2024 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Restricted Stock Units 487 $0.00 0.0000 26,802,000 100.00% 0.00%
June 2, 2023 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Common Stock 3825 $0.00 7,280.0000 26,054,000 110.71% 0.01%
June 2, 2023 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Restricted Stock Units 3825 $0.00 0.0000 26,054,000 100.00% 0.01%
May 25, 2023 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director A Restricted Stock Units 8636 $0.00 8,636.0000 26,054,000 9999.99% 0.03%
May 10, 2023 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Common Stock 487 $0.00 3,455.0000 26,054,000 16.41% 0.00%
May 10, 2023 CASTLE BIOSCIENCES INC $CSTL Olson Tiffany Director M Restricted Stock Units 487 $0.00 487.0000 26,054,000 50.00% 0.00%