SEC Insider Transactions from MATHIESEN JEFFREY S.

Last updated: 2026-03-14 11:19 UTC | Total transactions: 9

MATHIESEN JEFFREY S has filed 9 insider transactions across 2 companies since February 2023.

Most recent transaction: a grant/award of 26200 shares of Solana Co ($HSDT) on July 02, 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
July 2, 2025 Solana Co $HSDT MATHIESEN JEFFREY S CFO and Treasurer A Stock Option (Right to Buy) 26200 $0.00 26,200.0000 123,335 9999.99% 21.24%
June 23, 2025 NEUROONE MEDICAL TECHNOLOGIES Corp $NMTC MATHIESEN JEFFREY S Director A Option to Purchase Common Stock 50000 $0.00 50,000.0000 31,111,786 9999.99% 0.16%
Feb. 14, 2025 NEUROONE MEDICAL TECHNOLOGIES Corp $NMTC MATHIESEN JEFFREY S Director A Option to Purchase Common Stock 17025 $0.00 17,025.0000 30,880,415 9999.99% 0.06%
Feb. 14, 2025 NEUROONE MEDICAL TECHNOLOGIES Corp $NMTC MATHIESEN JEFFREY S Director A Common Stock 27778 $0.00 114,414.0000 30,880,415 32.06% 0.09%
Jan. 6, 2025 Solana Co $HSDT MATHIESEN JEFFREY S CFO and Treasurer A Stock Option (Right to Buy) 139857 $0.00 139,857.0000 2,709,781 9999.99% 5.16%
July 2, 2024 Solana Co $HSDT MATHIESEN JEFFREY S CFO and Treasurer A Stock Option (Right to Buy) 404000 $0.00 404,000.0000 3,322 9999.99% 100.00%
March 16, 2023 NEUROONE MEDICAL TECHNOLOGIES Corp $NMTC MATHIESEN JEFFREY S Not found A Option to Purchase Common Stock 18927 $0.00 18,927.0000 16,230,997 9999.99% 0.12%
March 16, 2023 NEUROONE MEDICAL TECHNOLOGIES Corp $NMTC MATHIESEN JEFFREY S Not found A Common Stock 20576 $0.00 86,636.0000 16,230,997 31.15% 0.13%
Feb. 14, 2023 Solana Co $HSDT MATHIESEN JEFFREY S CFO and Treasurer A Stock Option (Right to Buy) 2693000 $0.00 2,693,000.0000 269,929 9999.99% 100.00%