Insider Profile
Ostroff, Brian Richard
2
Companies Filed At
0
Open-Market Buys (2yr)
Buy Value (2yr, open-market)
Dec 10, 2025
Most Recent Trade
Date Company Role Nature Dir. Shares Price Value Score
Dec 10, 2025 $DAN
Arianne Phosphate Inc.
Open Market Sell 12,960 $0.20 $3K 65
Dec 09, 2025 $MDM
Madoro Metals Corp.
Expiry Sell 750,000 $0.08 $60K
Dec 09, 2025 $DAN
Arianne Phosphate Inc.
Open Market Sell 348,440 $0.20 $68K 65
Jun 06, 2025 $MDM
Madoro Metals Corp.
Other Buy 316,000
Jun 06, 2025 $DAN
Arianne Phosphate Inc.
Other Sell 496,500 65
Jun 06, 2025 $DAN
Arianne Phosphate Inc.
Other Buy 496,500 65
Jun 06, 2025 $MDM
Madoro Metals Corp.
Other Sell 316,000
Jan 08, 2025 $DAN
Arianne Phosphate Inc.
Comp. Grant Buy 70,000 65
Oct 14, 2024 $DAN
Arianne Phosphate Inc.
Expiry Sell 200,000 65
Aug 21, 2024 $DAN
Arianne Phosphate Inc.
Expiry Sell 20,000 65
Dec 29, 2023 $DAN
Arianne Phosphate Inc.
Comp. Grant Buy 70,000 65
May 15, 2023 $DAN
Arianne Phosphate Inc.
Open Market Sell 588,187 $0.34 $203K 65
Dec 29, 2022 $DAN
Arianne Phosphate Inc.
Expiry Sell 12,500 65
Jun 06, 2022 $MDM
Madoro Metals Corp.
Other Buy 224,000
May 07, 2021 $MDM
Madoro Metals Corp.
Exercise Sell 250,000
May 07, 2021 $MDM
Madoro Metals Corp.
Exercise Buy 250,000 $0.10 $25K
May 06, 2021 $MDM
Madoro Metals Corp.
Exercise Sell 250,000
May 06, 2021 $MDM
Madoro Metals Corp.
Exercise Buy 250,000 $0.10 $25K
Dec 08, 2020 $DAN
Arianne Phosphate Inc.
Comp. Grant Buy 75,000 65
Oct 27, 2020 $DAN
Arianne Phosphate Inc.
Other Buy 20,000 65
Jul 06, 2020 $DAN
Arianne Phosphate Inc.
Comp. Grant Buy 250,000 65
Muted rows are plan purchases, compensation grants, or DRIP — not open-market. Confluence Scores reflect the company's current score, not the score at time of trade.
Form55 provides data and analysis for informational purposes only. Nothing on this site constitutes investment advice or a recommendation to buy or sell any security. Past performance is not indicative of future results.