Michael K Korenko insider trades: Vivos (RDGL) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Michael reports to the SEC
Open-market buys and sales
34 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 30, 2026 | RDGL | ↑ Buy | 200,000 | $0.50 | $100K | Direct | Oct 1, 2026 (1d) |
| Aug 10, 2026 | RDGL | ↑ Buy | 150,000 | $0.05 | $8K | Direct | Aug 10, 2026 (0d) |
| Jul 15, 2026 | RDGL | ↑ Buy | 200,000 | $0.06 | $11K | Direct | Jul 15, 2026 (0d) |
| May 11, 2026 | RDGL | ↑ Buy | 150,000 | $0.06 | $9K | Direct | May 11, 2026 (0d) |
| Dec 31, 2025 | RDGL | ↑ Buy | 200,000 | $0.06 | $13K | Direct | Jan 2, 2026 (2d) |
| Dec 2, 2025 | RDGL | ↑ Buy | 100,000 | $0.07 | $7K | Direct | Dec 9, 2025 (7d) |
| Nov 20, 2025 | RDGL | ↑ Buy | 100,000 | $0.06 | $6K | Direct | Nov 20, 2025 (0d) |
| Aug 14, 2025 | RDGL | ↑ Buy | 100,000 | $0.08 | $8K | Direct | Aug 14, 2025 (0d) |
| Oct 28, 2024 | RDGL | ↑ Buy | 50,000 | $0.14 | $7K | Direct | Oct 28, 2024 (0d) |
| Sep 30, 2024 | RDGL | ↑ Buy | 50,000 | $0.16 | $8K | Direct | Sep 30, 2024 (0d) |
| Aug 13, 2024 | RDGL | ↑ Buy | 50,000 | $0.11 | $6K | Direct | Aug 13, 2024 (0d) |
| Aug 7, 2024 | RDGL | ↑ Buy | 50,000 | $0.12 | $6K | Direct | Aug 7, 2024 (0d) |
| Aug 1, 2024 | RDGL | ↑ Buy | 50,000 | $0.09 | $4K | Direct | Aug 2, 2024 (1d) |
| Jul 29, 2024 | RDGL | ↑ Buy | 50,000 | $0.09 | $5K | Direct | Jul 29, 2024 (0d) |
| Jun 4, 2024 | RDGL | ↑ Buy | 50,000 | $0.17 | $8K | Direct | Jun 4, 2024 (0d) |
| Nov 13, 2023 | RDGL | ↑ Buy | 100,000 | $0.05 | $5K | Direct | Nov 14, 2023 (1d) |
| Oct 18, 2023 | RDGL | ↑ Buy | 100,000 | $0.05 | $5K | Direct | Oct 19, 2023 (1d) |
| Dec 15, 2022 | RDGL | ↑ Buy | 100,000 | $0.05 | $5K | Direct | Dec 15, 2022 (0d) |
| Nov 17, 2022 | RDGL | ↑ Buy | 200,000 | $0.05 | $10K | Direct | Nov 18, 2022 (1d) |
| Aug 10, 2022 | RDGL | ↑ Buy | 200,000 | $0.07 | $14K | Direct | Aug 12, 2022 (2d) |
| Mar 28, 2022 | RDGL | ↑ Buy | 100,000 | $0.06 | $6K | Direct | Mar 29, 2022 (1d) |
| Dec 8, 2021 | RDGL | ↑ Buy | 130,000 | $0.08 | $10K | Direct | Dec 8, 2021 (0d) |
| Aug 10, 2021 | RDGL | ↑ Buy | 89,689 | $0.11 | $10K | Direct | Aug 10, 2021 (0d) |
| Aug 9, 2021 | RDGL | ↓ Sell | 89,689 | $0.10 | $9K | By Elaine M. Korenko Bypass Trust | Aug 10, 2021 (1d) |
| Nov 12, 2020 | RDGL | ↑ Buy | 85,000 | $0.02 | $2K | Direct | Nov 12, 2020 (0d) |
| Jun 5, 2020 | RDGL | ↑ Buy | 694,178 | $0.03 | $19K | Direct | Jun 12, 2020 (7d) |
| May 15, 2020 | RDGL | ↑ Buy | 100,000 | $0.02 | $2K | Direct | May 18, 2020 (3d) |
| Apr 15, 2020 | RDGL | ↑ Buy | 70,000 | $0.03 | $2K | Direct | Apr 20, 2020 (5d) |
| Feb 26, 2020 | RDGL | ↑ Buy | 150,000 | $0.03 | $5K | By IRA Account | Feb 27, 2020 (1d) |
| May 6, 2019 | RDGL | ↑ Buy | 1,000,000 | $0.00 | $4K | Direct | May 6, 2019 (0d) |
| Apr 29, 2019 | RDGL | ↑ Buy | 435,000 | $0.00 | $1K | Direct | Apr 30, 2019 (1d) |
| Nov 20, 2017 | ADMD | ↑ Buy | 280,000 | $0.03 | $10K | By IRA Account | Nov 21, 2017 (1d) |
| May 16, 2017 | ADMD | ↑ Buy | 100,000 | $0.10 | $10K | Direct | May 17, 2017 (1d) |
| Jan 17, 2017 | ADMD | ↑ Buy | 700,000 | $0.15 | $105K | By Elaine M. Korenko Bypass Trust | Jan 18, 2017 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other RDGL insiders
Open-market trades in the last 12 months
About Michael K Korenko's insider trades
Michael K Korenko is CEO at Vivos (RDGL). Since Jan 17, 2017, Michael has reported 33 open-market purchases worth $431K and 1 sale worth $9K on SEC Form 4. In the last 12 months: 7 buys ($155K).
Their filings also include grants and awards (5 filings), option exercises (4 filings), shares returned to the company (3 filings), shares withheld for taxes (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every RDGL insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.