Strome Mark E (CIK 0000919484)

Latest company ownership

Shares held
890,620
Last filed at
Jan 23, 2025
Confidence Score
49.9
2025Q4
Confidence Score History
2018Q1 2025Q4
Shares held
4,166
Last filed at
Oct 30, 2023
Confidence Score
50.0
2025Q4
Confidence Score History
2018Q2 2025Q4
Shares held
2,025
Last filed at
Oct 20, 2025
Confidence Score
78.8
2025Q4
Confidence Score History
2024Q4 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 17, 2025 Dec 22, 2025 HeartBeam, Inc. 10% Owner Sell 20.0 -250,000 -7.94% $895K
Oct 13, 2025 Oct 20, 2025 Zivo Bioscience, Inc. 10% Owner Buy 87.5 +20,259 4.68% $250K
Nov 15, 2024 Jan 23, 2025 Arena Group Holdings, Inc. Other Sell 20.0 -217,574 -19.63% $372.1K
Aug 27, 2024 Jan 23, 2025 Zivo Bioscience, Inc. 10% Owner Buy 92.5 +30,000 8.14% $253.2K
Jan 17, 2025 Jan 21, 2025 Zivo Bioscience, Inc. 10% Owner Buy 92.5 +34,000 8.53% $629K
Dec 26, 2024 Dec 31, 2024 Zivo Bioscience, Inc. 10% Owner Buy 100.0 +75,000 23.17% $1.5M
Jun 2, 2021 Oct 30, 2023 Zivo Bioscience, Inc. 10% Owner Buy 95.0 +40,000 24.45% $199.6K
Mar 30, 2018 Oct 4, 2018 Arena Group Holdings, Inc. 10% Owner Buy 100.0 +600,505 15.46% $1.4M
May 11, 2018 May 25, 2018 Zivo Bioscience, Inc. 10% Owner Buy 100.0 +13,088,129 100.00% $1.3M