Form4insider filings, from the source

Company · CIK 0001175151 · SIC 3841 — Surgical & Medical Instruments & Apparatus · Nasdaq

Cytosorbents Corp · CTSO

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $120k · 4sales $0 · 0net $120k
$10k$10k$100k$100k$1M$1MbuyssalesAug 26Aug 31Sep 5Sep 10Sep 16Sep 21Sep 26

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 15, 2026 PForm 4 →Sep 16, 5:30 pm EDTPhillip P. ChanChief Executive Officer, Director3,774$6.00$22,644100,996+3.88%
Sep 15, 2026 PForm 4 →Sep 16, 4:05 pm EDTAlan D. SobelDirector2,500$6.10$15,2549,887+33.8%
Sep 14, 2026 PForm 4 →Sep 16, 4:05 pm EDTVincent CapponiPresident and COO2,073$6.05$12,53740,387+5.41%
Sep 4, 2026 PForm 4 →Sep 9, 4:05 pm EDTPhillip P. ChanChief Executive Officer, Director200,000$0.35$70,0001,944,432+11.5%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.