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Phillip P. Chan
Chief Executive OfficerDirector

Phillip P. Chan insider trades: Cytosorbents (CTSO) stock buys and sales

Chief Executive Officer, Cytosorbents Last trade Sep 15, 2026 51 Form 4 filings
$0
Sold, last 12 months
0 sales
$128K
Bought, last 12 months
2 buys
18
Open-market trades
since 2012
2
Companies
last trade 2026

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

DateStockTypeValue
Sep 15, 2026CTSO↑ Buy$23K
Jun 15, 2026CTSO↑ Buy$105K
Dec 13, 2023CTSO↑ Buy$100K
Dec 8, 2022CTSO↑ Buy$7K
Dec 7, 2022CTSO↑ Buy$30K
Sep 8, 2022CTSO↑ Buy$60K
Jun 16, 2022CTSO↑ Buy$4K
Jun 9, 2022CTSO↑ Buy$35K
Dec 30, 2021CTSO↑ Buy$61K
Dec 10, 2021CTSO↑ Buy$26K
Dec 6, 2019CTSO↑ Buy$59K
Dec 7, 2018CTSO↓ Sell$228K
Sep 7, 2018CTSO↓ Sell$167K
Jun 8, 2017CTSO↑ Buy$15K
Jun 5, 2017CTSO↑ Buy$25K
Dec 9, 2016CTSO↑ Buy$25K
Aug 24, 2016CTSO↑ Buy$24K
Sep 4, 2012CTSO↑ Buy$25K

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.