LYTIR

Insider · SEC Form 4 · Chief Executive Officer

Phillip P. Chan

Filed with the SEC as Chan Phillip P.; the order above is the one the filer's own signature uses.

In the 12 months to Nov 8, 2026, on the open market: bought $128K of CTSO. Filed a median of 1 business day after the trade.

Open-market purchases and sales this filer reported on SEC Form 4, by the day traded. Insiders have two business days to file. A sale marked 10b5-1 was made under a plan adopted in advance. How to read these

Insider purchases and sales, by month (last 12 months)Insider purchases: $128K in total; Insider sales: $0 in total.Jun: Insider purchases $105KSep: Insider purchases $23KDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $128KInsider sales below: $0
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.
  1. CTSOBought: Cytosorbents Corp Sep 15, 2026 3,774 shares filed Sep 16, 2026 100,996 shares held directly after, as filed filing $23K
  2. CTSOBought: Cytosorbents Corp Jun 15, 2026 10,333 shares filed Jun 15, 2026 1,744,432 shares held directly after, as filed filing $4K
  3. CTSOBought: Cytosorbents Corp Jun 12, 2026 251,136 shares filed Jun 15, 2026 1,734,099 shares held directly after, as filed filing $100K

Source: SEC Form 4 filings. Value is shares × the price reported on the filing; a filing whose price failed Lytir's check against the market price is left out, and a trade that related owners reported on separate forms is counted once. Filings can be late, amended or wrong at the source; see methodology.