SEC Insider Transactions from NIGON RICHARD.

Last updated: 2026-03-14 11:44 UTC | Total transactions: 23

NIGON RICHARD has filed 23 insider transactions across 2 companies since May 2023.

Most recent transaction: a gift of 19975 shares of Celcuity Inc. ($CELC) on December 15, 2025.

Activity breakdown: 0 open-market purchases and 1 sale.

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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
Dec. 15, 2025 Celcuity Inc. $CELC NIGON RICHARD Not found G Common Stock 19975 $0.00 89,035.0000 47,589,731 18.32% 0.04%
Sept. 11, 2025 Celcuity Inc. $CELC NIGON RICHARD Not found X Common Stock 4672 $7.56 105,765.0000 39,449,393 4.62% 0.01%
Sept. 11, 2025 Celcuity Inc. $CELC NIGON RICHARD Not found X Warrants (right to buy) 3245 $0.00 0.0000 39,449,393 100.00% 0.01%
Sept. 11, 2025 Celcuity Inc. $CELC NIGON RICHARD Not found X Warrants (right to buy) 4672 $0.00 0.0000 39,449,393 100.00% 0.01%
Sept. 11, 2025 Celcuity Inc. $CELC NIGON RICHARD Not found X Common Stock 3245 $7.56 109,010.0000 39,449,393 3.07% 0.01%
Sept. 1, 2025 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director A Common Stock 8086 $0.00 47,148.0000 9,639,676 20.70% 0.08%
July 24, 2025 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director M Common Stock 12000 $7.43 49,935.0000 9,754,209 31.63% 0.12%
July 24, 2025 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director F Common Stock 10873 $8.20 39,062.0000 9,754,209 21.77% 0.11%
July 24, 2025 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director M Stock Option (right to buy) 12000 $0.00 0.0000 9,754,209 100.00% 0.12%
May 19, 2025 Celcuity Inc. $CELC NIGON RICHARD Not found A Stock Option (right to buy) 14048 $0.00 14,048.0000 39,449,393 9999.99% 0.04%
Sept. 1, 2024 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director A Stock Option (right to buy) 11811 $0.00 11,811.0000 9,833,450 9999.99% 0.12%
Aug. 1, 2024 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director F Common Stock 7665 $13.11 37,935.0000 0 16.81% 0.00%
Aug. 1, 2024 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director M Common Stock 12000 $10.05 45,600.0000 0 35.71% 0.00%
Aug. 1, 2024 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director M Stock Option (right to buy) 12000 $0.00 0.0000 0 100.00% 0.00%
June 10, 2024 Celcuity Inc. $CELC NIGON RICHARD Director X Common Stock 5061 $9.50 101,093.0000 23,679,472 5.27% 0.02%
June 10, 2024 Celcuity Inc. $CELC NIGON RICHARD Director X Warrants (right to buy) 5061 $0.00 17,807.0000 23,679,472 22.13% 0.02%
June 4, 2024 Celcuity Inc. $CELC NIGON RICHARD Director A Stock Option (right to buy) 8153 $0.00 90,629.0000 23,679,472 9.89% 0.03%
Sept. 1, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director A Stock Option (right to buy) 11905 $0.00 11,905.0000 0 9999.99% 0.00%
July 26, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director M Common Stock 12000 $7.35 42,600.0000 0 39.22% 0.00%
July 26, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director F Common Stock 7153 $12.33 35,447.0000 0 16.79% 0.00%
July 27, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director S Common Stock 1847 $12.17 33,600.0000 0 5.21% 0.00%
July 26, 2023 NORTHERN TECHNOLOGIES INTERNATIONAL CORP $NTIC NIGON RICHARD Director M Stock Option (right to buy) 12000 $0.00 0.0000 0 100.00% 0.00%
May 15, 2023 Celcuity Inc. $CELC NIGON RICHARD Director A Stock Option (right to buy) 11645 $0.00 82,476.0000 0 16.44% 0.00%