SEC Insider Transactions from Gregoriou Vassilios.

Last updated: 2026-03-16 13:03 UTC | Total transactions: 8

Gregoriou Vassilios has filed 8 insider transactions across 1 company since February 2023.

Most recent transaction: a sale of 14157 shares of ADVENT TECHNOLOGIES HOLDINGS, INC. ($ADNH) on September 06, 2023.

Activity breakdown: 0 open-market purchases and 7 sales.

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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
Sept. 6, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair S Common Stock 14157 $0.53 6,367,669.0000 0 0.22% 0.00%
Feb. 6, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair S Common Stock 18642 $2.00 6,438,860.0000 0 0.29% 0.00%
Feb. 7, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair S Common Stock 34338 $1.96 6,404,522.0000 0 0.53% 0.00%
Feb. 8, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair S Common Stock 22696 $1.92 6,381,826.0000 0 0.35% 0.00%
Feb. 6, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair S Common Stock 18642 $2.00 6,543,982.0000 0 0.28% 0.00%
Feb. 7, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair S Common Stock 34338 $1.96 6,509,644.0000 0 0.52% 0.00%
Feb. 8, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair S Common Stock 22696 $1.92 6,486,948.0000 0 0.35% 0.00%
Feb. 4, 2023 ADVENT TECHNOLOGIES HOLDINGS, INC. $ADNH Gregoriou Vassilios CEO, Chair F Common Stock 72161 $2.04 6,490,463.0000 0 1.10% 0.00%