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CIK 0001175151 · Non-accelerated filer<br>Smaller reporting company

Cytosorbents Corp

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Ticker
CTSO
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
980373793
Phone
973-329-8885
Business address
305 COLLEGE ROAD EAST, PRINCETON, NJ, 08540
Former names
MedaSorb Technologies CORP, GILDER ENTERPRISES INC
Open-market buys, last 90 days
$120,435
in 4 filings
Open-market sales, last 90 days
$0
in 0 filings

Net +$120,435. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Reading 63 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2025-08-08 Deliargyris Efthymios Chief Medical Officer Grant or award +70,000 473,025
2025-08-08 Deliargyris Efthymios Chief Medical Officer Grant or award · Stock Option (Right to Buy) +95,000 95,000
2025-08-08 Sobel Alan D. Director Grant or award · Stock Option (Right to Buy) +22,000 22,000
2025-02-24 BATOR MICHAEL G. Director Other acquisition +10,000 $1.13 $11K 151,273
2025-02-24 BATOR MICHAEL G. Director Other disposition · Series A Right Warrants (right to buy) −15,879 $1.13 $18K 0
2025-02-24 Capponi Vincent President and COO Other acquisition +12,000 $1.13 $14K 677,168
2025-02-24 Capponi Vincent President and COO Other disposition · Series A Right Warrants (right to buy) −12,000 $1.13 $14K 0
2025-02-24 MARIANI PETER J Chief Financial Officer Other acquisition +32,625 $1.13 $37K 466,613
2025-02-24 MARIANI PETER J Chief Financial Officer Other disposition · Series A Right Warrants (right to buy) −32,625 $1.13 $37K 0
2025-02-24 Chan Phillip P. Chief Executive Officer Other acquisition +34,168 $1.13 $39K 1,277,363
2025-02-24 Chan Phillip P. Chief Executive Officer Other disposition · Series A Right Warrants (right to buy) −34,168 $1.13 $39K 0
2025-02-24 Sobel Alan D. Director Other acquisition +21,950 $1.13 $25K 145,757
2025-02-24 Sobel Alan D. Director Other disposition · Series A Right Warrants (right to buy) −21,950 $1.13 $25K 0
2025-01-17 BATOR MICHAEL G. Director Option exercise +15,879 $1.00 $16K 141,273
2025-01-17 BATOR MICHAEL G. Director Option exercise · Subscription Rights (right to buy) −15,879 0
2025-01-17 BATOR MICHAEL G. Director Other acquisition · Series A Right Warrants +15,879 15,879
2025-01-17 BATOR MICHAEL G. Director Other acquisition · Series B Right Warrants +15,879 15,879
2025-01-17 Capponi Vincent President and COO Option exercise +31,760 $1.00 $32K 665,168
2025-01-17 Capponi Vincent President and COO Option exercise · Subscription Rights (right to buy) −31,760 0
2025-01-17 Capponi Vincent President and COO Other acquisition · Series A Right Warrants +31,760 31,760

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