Phillip P. Chan insider trades: Cytosorbents (CTSO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Phillip reports to the SEC
Open-market buys and sales
18 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | CTSO | ↑ Buy | 3,774 | $6.00 | $23K | Direct | Sep 16, 2026 (1d) |
| Jun 15, 2026 | CTSO | ↑ Buy | 261,469 | $0.40 | $105K | Direct | Jun 15, 2026 (0d) |
| Dec 13, 2023 | CTSO | ↑ Buy | 75,188 | $1.33 | $100K | Direct | Dec 15, 2023 (2d) |
| Dec 8, 2022 | CTSO | ↑ Buy | 5,859 | $1.26 | $7K | Direct | Dec 9, 2022 (1d) |
| Dec 7, 2022 | CTSO | ↑ Buy | 24,141 | $1.26 | $30K | Direct | Dec 8, 2022 (1d) |
| Sep 8, 2022 | CTSO | ↑ Buy | 35,000 | $1.70 | $60K | Direct | Sep 12, 2022 (4d) |
| Jun 16, 2022 | CTSO | ↑ Buy | 2,221 | $1.85 | $4K | Direct | Jun 21, 2022 (5d) |
| Jun 9, 2022 | CTSO | ↑ Buy | 16,000 | $2.17 | $35K | Direct | Jun 10, 2022 (1d) |
| Dec 30, 2021 | CTSO | ↑ Buy | 15,000 | $4.05 | $61K | Direct | Jan 3, 2022 (4d) |
| Dec 10, 2021 | CTSO | ↑ Buy | 5,000 | $5.25 | $26K | Direct | Dec 13, 2021 (3d) |
| Dec 6, 2019 | CTSO | ↑ Buy | 16,500 | $3.60 | $59K | Direct | Dec 6, 2019 (0d) |
| Dec 7, 2018 | CTSO | ↓ Sell | 24,337 | $9.37 | $228K | Direct | Dec 11, 2018 (4d) |
| Sep 7, 2018 | CTSO | ↓ Sell | 11,418 | $14.65 | $167K | Direct | Sep 7, 2018 (0d) |
| Jun 8, 2017 | CTSO | ↑ Buy | 3,700 | $4.00 | $15K | Direct | Jun 8, 2017 (0d) |
| Jun 5, 2017 | CTSO | ↑ Buy | 6,300 | $4.00 | $25K | Direct | Jun 6, 2017 (1d) |
| Dec 9, 2016 | CTSO | ↑ Buy | 4,600 | $5.40 | $25K | Direct | Dec 13, 2016 (4d) |
| Aug 24, 2016 | CTSO | ↑ Buy | 5,000 | $4.89 | $24K | Direct | Aug 26, 2016 (2d) |
| Sep 4, 2012 | CTSO | ↑ Buy | 190,000 | $0.13 | $25K | Direct | Sep 5, 2012 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other CTSO insiders
Open-market trades in the last 12 months
About Phillip P. Chan's insider trades
Phillip P. Chan is Chief Executive Officer at Cytosorbents (CTSO). Since Sep 4, 2012, Phillip has reported 16 open-market purchases worth $624K and 2 sales worth $395K on SEC Form 4. In the last 12 months: 2 buys ($128K).
Their filings also include grants and awards (23 filings), option exercises (9 filings), other transactions (5 filings), conversions (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 CTSO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.

