Cytosorbents ($CTSO) Insider Trading & Smart Money Activity
Cytosorbents Corporation ($CTSO) has 5 insider trades on file. In the last 12 months on the open market, 2 insiders bought ($253.80K) and no insider sold, net +$253.80K.
- Insider buyers (12 mo)
- 2
- Insider sellers (12 mo)
- 0
- Net insider $ (12 mo)
- +$253.80K
- Congress trades (12 mo)
- 0
- 13F moves on file
- 0
- Analyst ratings on file
- 0
CTSO insider buying and selling by quarter
| Quarter | Insider buys | Insider sales | Congress buys / sales | 13F added / cut |
|---|---|---|---|---|
| Q1 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q2 2026 | 5 · $253.80K | 0 | 0 / 0 | 0 / 0 |
| Q3 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
| Q4 2026 | 0 | 0 | 0 / 0 | 0 / 0 |
Insider buys and sales count open-market trades only (Form 4 codes P and S). Grants, option exercises and tax withholding are left out.
All CTSO insider, congress, 13F and analyst activity
| Date | Source | Who | Action | Shares | Value / amount | ΔOwn | 1W | 1M | 6M | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Insider | Peter MarianiChief Financial Officer | Buy (Open-market buy) | 100K sh | $44K | -4.4% | -10.0% | Read | ||||
| Insider | Phillip ChanChief Executive Officer | Buy (Open-market buy) | 10.33K sh | $4.44K | -4.4% | -10.0% | — | ||||
| Insider | Phillip ChanChief Executive Officer | Buy (Open-market buy) | 10.33K sh | $4.44K | -4.4% | -10.0% | Read | ||||
| Insider | Phillip ChanChief Executive Officer | Buy (Open-market buy) | 251.14K sh | $100.45K | +3.2% | -5.0% | Read | ||||
| Insider | Phillip ChanChief Executive Officer | Buy (Open-market buy) | 251.14K sh | $100.45K | +3.2% | -5.0% | Read |
1W / 1M / 6M = how CTSO moved from the trade or filing date.
Insider trading in CTSO: who is buying and selling
| Insider | Role | Trades | Open-market net | Shares held | Last trade |
|---|---|---|---|---|---|
| Phillip Chan | Chief Executive Officer | 4 | +$209.80K | Jun 15, 2026 | |
| Peter Mariani | Chief Financial Officer | 1 | +$44K | Jun 15, 2026 |
Frequently asked questions
Are CTSO insiders buying or selling?
Over the last 12 months 2 insiders made 5 open-market purchases worth $253.80K and 0 insiders made 0 open-market sales worth $0, a net +$253.80K.
What is the latest insider trade in CTSO?
Peter Mariani, Chief Financial Officer filed a buy (open-market buy) of 100K sh worth $44K on Jun 15, 2026.
Other medical devices stocks
Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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