{"transactions":[{"id":1548009,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2024-04-05T01:46:38.000Z","date":"2024-04-02","kind":"grant","planned":false,"acquired":true,"shares":87000,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F6","text":"These stock options were granted pursuant to the Plan. The shares underlying these stock options vest as to one-half of the award on the first year anniversary of the date of grant, one-fourth of the award on the second year anniversary of the date of grant, and one-fourth of the award on the third year anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"These stock options were granted pursuant to the Plan. The shares underlying these stock options vest as to one-half of the award on the first year anniversary of the date of grant, one-fourth of the award on the second year anniversary of the date of grant, and one-fourth of the award on the third year anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":87000,"derivative":{"exercise_price":0.955,"expiration_date":"2034-04-02","underlying":"Common Stock","underlying_shares":87000},"source":{"system":"sec-edgar","filing":"0001104659-24-043793","document":"tm2411149-2_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465924043793/tm2411149-2_4seq1.xml","form_type":"4"}},{"id":1548008,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2024-04-05T01:46:38.000Z","date":"2024-04-02","kind":"grant","planned":false,"acquired":true,"shares":65000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\") which shall vest in equal parts at the first and second year anniversaries of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes: (i) the following RSUs, which vest as to 10,000 RSUs on the first anniversary of the date of grant, and 10,000 RSUs on the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date), and will be settled into common stock, par value $0.001 per share (the \"Common Stock\"), upon vesting: 20,000 RSUs granted on September 18, 2023;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"(continued from footnote 2) (ii) the following RSUs that will be settled into Common Stock upon a \"Change In Control\" of the Company, as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 8,800 RSUs granted on March 15, 2018, (b) 15,700 RSUs granted on February 24, 2017, (c) 47,000 RSUs granted on June 7, 2016 and (d) 110,000 RSUs granted on April 8, 2015;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"(continued from footnote 3) (iii) the following RSUs, which vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into Common Stock upon vesting: 18,500 RSUs granted on August 10, 2022; and"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"(continued from footnote 4) (iv) 247,941 shares of Common Stock owned by the reporting person."}],"balance_after":532941,"source":{"system":"sec-edgar","filing":"0001104659-24-043793","document":"tm2411149-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465924043793/tm2411149-2_4seq1.xml","form_type":"4"}},{"id":1554122,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2024-04-03T01:31:14.000Z","date":"2024-03-29","kind":"grant","planned":false,"acquired":true,"shares":49038,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The reporting person participated in a voluntary salary reduction for the period from April 1, 2024, to December 31, 2024, and these stock\noptions were granted in connection with the salary reduction. These stock options were issued pursuant to the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan. The shares underlying these stock options will vest fully on January 31, 2025, except as set forth on the corresponding non-qualified stock option agreement and subject to the reporting person's continued service as of the applicable vesting date."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The reporting person participated in a voluntary salary reduction for the period from April 1, 2024, to December 31, 2024, and these stock\noptions were granted in connection with the salary reduction. These stock options were issued pursuant to the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan. The shares underlying these stock options will vest fully on January 31, 2025, except as set forth on the corresponding non-qualified stock option agreement and subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":49038,"derivative":{"exercise_price":0.95,"expiration_date":"2034-03-29","underlying":"Common Stock","underlying_shares":49038},"source":{"system":"sec-edgar","filing":"0001104659-24-042774","document":"tm2410664-2_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465924042774/tm2410664-2_4seq1.xml","form_type":"4"}},{"id":1709624,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock Warrant (Right to Buy)","published_at":"2023-12-15T21:32:14.000Z","date":"2023-12-13","kind":"purchase","planned":false,"acquired":true,"shares":13157,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"These securities were purchased by the reporting person in the registered direct offering of CytoSorbents Corporation (the \"Company\"), which closed on December 13, 2023. In the offering, each share of common stock, par value $0.001 per share (the \"Common Stock\") of the Company was purchased together with an accompanying warrant to purchase up to 0.35 shares of Common Stock, at a combined offering price of $1.33 per share of Common Stock and accompanying warrant"},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These securities were purchased by the reporting person in the registered direct offering of CytoSorbents Corporation (the \"Company\"), which closed on December 13, 2023. In the offering, each share of common stock, par value $0.001 per share (the \"Common Stock\") of the Company was purchased together with an accompanying warrant to purchase up to 0.35 shares of Common Stock, at a combined offering price of $1.33 per share of Common Stock and accompanying warrant"}],"balance_after":13157,"derivative":{"exercise_price":2,"exercise_date":"2023-12-13","expiration_date":"2028-12-13","underlying":"Common Stock","underlying_shares":13157},"source":{"system":"sec-edgar","filing":"0001104659-23-126427","document":"tm2332958-2_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923126427/tm2332958-2_4seq1.xml","form_type":"4"}},{"id":1709623,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2023-12-15T21:32:14.000Z","date":"2023-12-13","kind":"purchase","planned":false,"acquired":true,"shares":37594,"price":1.33,"value":50000.02,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These securities were purchased by the reporting person in the registered direct offering of CytoSorbents Corporation (the \"Company\"), which closed on December 13, 2023. In the offering, each share of common stock, par value $0.001 per share (the \"Common Stock\") of the Company was purchased together with an accompanying warrant to purchase up to 0.35 shares of Common Stock, at a combined offering price of $1.33 per share of Common Stock and accompanying warrant"},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"These securities were purchased by the reporting person in the registered direct offering of CytoSorbents Corporation (the \"Company\"), which closed on December 13, 2023. In the offering, each share of common stock, par value $0.001 per share (the \"Common Stock\") of the Company was purchased together with an accompanying warrant to purchase up to 0.35 shares of Common Stock, at a combined offering price of $1.33 per share of Common Stock and accompanying warrant"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes: (i) the following restricted stock units (\"RSUs\") (which vest as to 10,000 RSUs on the first anniversary of the date of grant, and 10,000 RSUs on the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date), and will be settled into Common Stock upon vesting: 20,000 RSUs granted on September 18, 2023;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"(continued from footnote 2) (ii) the following RSUs that will be settled into Common Stock upon a \"Change In Control\" of the Company, as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan: (a) 8,800 RSUs granted on March 15, 2018, (b) 15,700 RSUs granted on February 24, 2017, (c) 47,000 RSUs granted on June 7, 2016 and (d) 110,000 RSUs granted on April 8, 2015;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"(continued from footnote 3) (iii) the following RSUs (which vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date), and will be settled into Common Stock upon vesting: 18,500 RSUs granted on August 10, 2022; and"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F5","text":"(continued from footnote 4) (iv) 247,941 shares of Common Stock owned by the reporting person."}],"balance_after":467941,"source":{"system":"sec-edgar","filing":"0001104659-23-126427","document":"tm2332958-2_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923126427/tm2332958-2_4seq1.xml","form_type":"4"}},{"id":1776371,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2023-09-20T20:34:05.000Z","date":"2023-09-18","kind":"grant","planned":false,"acquired":true,"shares":30000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"These stock options were granted pursuant to the Plan. The shares underlying these stock options shall vest as follows: (i) 10,000 shares underlying these stock options shall vest on the date of grant, (ii) 10,000 shares underlying these stock options shall vest on the first anniversary of the date of grant, and (iii) 10,000 underlying these stock options shall vest on the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":30000,"derivative":{"exercise_price":1.98,"expiration_date":"2033-09-18","underlying":"Common Stock","underlying_shares":30000},"source":{"system":"sec-edgar","filing":"0001104659-23-102316","document":"tm2326524-1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923102316/tm2326524-1_4seq1.xml","form_type":"4"}},{"id":1776370,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2023-09-20T20:34:05.000Z","date":"2023-09-18","kind":"grant","planned":false,"acquired":true,"shares":45000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\") which shall vest as follows: (i) 25,000 RSUs shall vest on the date of grant, (ii) 10,000 RSUs shall vest on the first anniversary of the date of grant, and (iii) 10,000 RSUs shall vest on the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock, par value $0.001 per share (the \"Common Stock\") of CytoSorbents Corporation (the \"Company\") upon vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes: (i) the following RSUs that will be settled into Common Stock upon a \"Change In Control\" of the Company, as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan: (a) 8,800 RSUs granted on March 15, 2018, (b) 15,700 RSUs granted on February 24, 2017, (c) 47,000 RSUs granted on June 7, 2016 and (d) 110,000 RSUs granted on April 8, 2015;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"(continued from footnote 2) (ii) the following RSUs (which vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the Reporting Person's continued service as of the applicable vesting date), and will be settled into common stock of the Company upon vesting: 18,500 RSUs granted on August 10, 2022; and"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"(continued from footnote 3) (iii) 197,347 shares of Common Stock owned by the Reporting Person."}],"balance_after":442347,"source":{"system":"sec-edgar","filing":"0001104659-23-102316","document":"tm2326524-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923102316/tm2326524-1_4seq1.xml","form_type":"4"}},{"id":1831702,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Stock Option (Right to Buy)","published_at":"2023-07-12T00:31:45.000Z","date":"2023-07-07","kind":"grant","planned":false,"acquired":true,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"These stock options were granted pursuant to the Plan. The shares underlying these stock options vest fully on the first anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":20000,"derivative":{"exercise_price":3.53,"expiration_date":"2033-07-07","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001104659-23-080106","document":"tm2321021-8_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923080106/tm2321021-8_4seq1.xml","form_type":"4"}},{"id":1875163,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2023-05-30T11:30:09.000Z","date":"2023-05-25","kind":"purchase","planned":false,"acquired":true,"shares":1100,"price":2.8481,"value":3132.91,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held by the Reporting Person's husband in a 401(k) account. The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":47000,"source":{"system":"sec-edgar","filing":"0001104659-23-065680","document":"tm2317159-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923065680/tm2317159-1_4seq1.xml","form_type":"4"}},{"id":1875162,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2023-05-30T11:30:09.000Z","date":"2023-05-25","kind":"purchase","planned":false,"acquired":true,"shares":1100,"price":2.8394,"value":3123.34,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held by the Reporting Person's husband in a 401(k) account. The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":45900,"source":{"system":"sec-edgar","filing":"0001104659-23-065680","document":"tm2317159-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923065680/tm2317159-1_4seq1.xml","form_type":"4"}},{"id":1875161,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2023-05-30T11:30:09.000Z","date":"2023-05-25","kind":"purchase","planned":false,"acquired":true,"shares":1100,"price":2.8483,"value":3133.13,"ownership":{"direct":false,"nature":"See footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held by the Reporting Person's husband in a 401(k) account. The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":44800,"source":{"system":"sec-edgar","filing":"0001104659-23-065680","document":"tm2317159-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923065680/tm2317159-1_4seq1.xml","form_type":"4"}},{"id":1895341,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2023-05-12T11:00:08.000Z","date":"2023-05-10","kind":"purchase","planned":false,"acquired":true,"shares":3000,"price":3.1699,"value":9509.7,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held by the Reporting Person's husband in a 401(k) account. The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":43700,"source":{"system":"sec-edgar","filing":"0001104659-23-059389","document":"tm2315569-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923059389/tm2315569-1_4seq1.xml","form_type":"4"}},{"id":1895340,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2023-05-12T11:00:08.000Z","date":"2023-05-10","kind":"purchase","planned":false,"acquired":true,"shares":2000,"price":3.125,"value":6250.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held by the Reporting Person's husband in a 401(k) account. The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":40700,"source":{"system":"sec-edgar","filing":"0001104659-23-059389","document":"tm2315569-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923059389/tm2315569-1_4seq1.xml","form_type":"4"}},{"id":1895339,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2023-05-12T11:00:08.000Z","date":"2023-05-10","kind":"purchase","planned":false,"acquired":true,"shares":5000,"price":3.0596,"value":15298.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"These shares are held by the Reporting Person's husband in a 401(k) account. The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":38700,"source":{"system":"sec-edgar","filing":"0001104659-23-059389","document":"tm2315569-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465923059389/tm2315569-1_4seq1.xml","form_type":"4"}},{"id":2187166,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-08-12T22:47:15.000Z","date":"2022-08-10","kind":"grant","acquired":true,"shares":215000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"These stock options were granted pursuant to the Plan. The shares underlying these stock options will vest only upon the achievement of certain milestones before December 31, 2025. Specifically, (i) 45,000 options will vest if the Company obtains U.S. Food and Drug Administration approval for its product DrugSorb, (ii) 45,000 options will vest if the Company achieves $80 million or more in annual ex-U.S. sales, (iii) 50,000 options will vest if the Company achieves $20 million or more in annual U.S. sales, and (iv) 75,000 options will vest if the Company achieves U.S. GAAP breakeven."}],"balance_after":215000,"derivative":{"exercise_price":1.95,"expiration_date":"2032-08-10","underlying":"Common Stock","underlying_shares":215000},"source":{"system":"sec-edgar","filing":"0001104659-22-090247","document":"tm2223355-3_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465922090247/tm2223355-3_4seq1.xml","form_type":"4"}},{"id":2187165,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2022-08-12T22:47:15.000Z","date":"2022-08-10","kind":"grant","acquired":true,"shares":75000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F6","text":"These stock options were granted pursuant to the Plan. The shares underlying these stock options vest as to one-quarter of the award on each of the date of grant, the first anniversary of the date of grant, the second anniversary of the date of grant and the third anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":75000,"derivative":{"exercise_price":1.95,"expiration_date":"2032-08-10","underlying":"Common Stock","underlying_shares":75000},"source":{"system":"sec-edgar","filing":"0001104659-22-090247","document":"tm2223355-3_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465922090247/tm2223355-3_4seq1.xml","form_type":"4"}},{"id":2187164,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2022-08-12T22:47:15.000Z","date":"2022-08-10","kind":"grant","acquired":true,"shares":55500,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\") which shall vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock, par value $0.001 per share (the \"Common Stock\") upon vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes: (i) the following RSUs that will be settled into Common Stock upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan: (a) 8,800 RSUs granted on March 15, 2018, (b) 15,700 RSUs granted on February 24, 2017, (c) 47,000 RSUs granted on June 7, 2016 and (d) 110,000 RSUs granted on April 8, 2015;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"(continued from footnote 2) (ii) the following RSUs (which vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the Reporting Person's continued service as of the applicable vesting date), and will be settled into common stock of the Company upon vesting: (a) 16,484 RSUs granted on April 12, 2021 and unvested as of the date hereof and (b) 55,500 RSUs granted on August 10, 2022 reported on this Form 4 and unvested as of the date hereof; and"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F4","text":"(continued from footnote 3) (iii) 151,677 shares of Common Stock owned by the Reporting Person."}],"balance_after":405161,"source":{"system":"sec-edgar","filing":"0001104659-22-090247","document":"tm2223355-3_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465922090247/tm2223355-3_4seq1.xml","form_type":"4"}},{"id":2242670,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2022-06-06T23:29:23.000Z","date":"2022-06-06","kind":"purchase","acquired":true,"shares":8700,"price":1.8999,"value":16529.13,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Includes (i) 10,000 shares held by the Reporting Person's husband in a 401(k) account, (ii) 15,000 shares held by the Reporting Person's husband in an IRA account and (iii) 8,700 shares held by the Reporting Person's husband in a ROTH IRA account and reported on this Form 4. The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":33700,"source":{"system":"sec-edgar","filing":"0001104659-22-068656","document":"tm2217836-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465922068656/tm2217836-1_4seq1.xml","form_type":"4"}},{"id":2494412,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-11-26T23:11:07.000Z","date":"2021-11-23","kind":"purchase","acquired":true,"shares":4000,"price":4.98,"value":19920.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Includes (i) 10,000 shares held by the Reporting Person's husband in a 401(k) account and (ii) 15,000 shares held by the Reporting Person's husband in an IRA account (including the 4,000 shares reported on this Form 4). The Reporting Person may be deemed the beneficial owner of such shares."}],"balance_after":25000,"source":{"system":"sec-edgar","filing":"0001104659-21-144035","document":"tm2134006-1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465921144035/tm2134006-1_4seq1.xml","form_type":"4"}},{"id":2749688,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2021-04-15T01:07:22.000Z","date":"2021-04-12","kind":"grant","acquired":true,"shares":69000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"The stock options were granted pursuant to the Plan. The shares underlying the stock options vest as to one-quarter of the award on each of the date of grant, the first anniversary of the date of grant, the second anniversary of the date of grant and the third anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":69000,"derivative":{"exercise_price":8.99,"expiration_date":"2031-04-12","underlying":"Common Stock","underlying_shares":69000},"source":{"system":"sec-edgar","filing":"0001104659-21-050387","document":"tm2113016d2_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465921050387/tm2113016d2_4.xml","form_type":"4"}},{"id":2749687,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-04-15T01:07:22.000Z","date":"2021-04-12","kind":"grant","acquired":true,"shares":49450,"price":8.99,"value":444555.5,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\") which shall vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes: (i) the following RSUs that will be settled into common stock, par value $0.001 per share (the \"Common Stock\") upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 8,800 RSUs granted on March 15, 2018, (b) 15,700 RSUs granted on February 24, 2017, (c) 47,000 RSUs granted on June 7, 2016 and (d) 110,000 RSUs granted on April 8, 2015;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"(ii) the following RSUs (which vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the Reporting Person's continued service as of the applicable vesting date), and will be settled into common stock of the Company upon vesting: (a) 49,450 RSUs granted on April 12, 2021 and unvested as of the date hereof, (b) 14,334 RSUs granted on February 28, 2020 and unvested as of the date hereof and (c) 14,334 RSUs granted on July 22, 2019 and unvested as of the date hereof; and (iii) 115,754 shares of Common Stock owned by the Reporting Person."}],"balance_after":375372,"source":{"system":"sec-edgar","filing":"0001104659-21-050387","document":"tm2113016d2_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465921050387/tm2113016d2_4.xml","form_type":"4"}},{"id":2925928,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2021-01-04T21:30:08.000Z","date":"2020-12-31","kind":"exercise","acquired":false,"shares":7857,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F5","text":"These stock options were originally granted on February 24, 2017 and became exercisable upon achievement of certain performance goals as determined in the discretion of the Compensation Committee of the Board of Directors of the Company."}],"balance_after":47793,"derivative":{"exercise_price":5.6,"expiration_date":"2027-02-24","underlying":"Common Stock","underlying_shares":7857},"source":{"system":"sec-edgar","filing":"0001104659-21-000337","document":"tm211481d1_4seq1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465921000337/tm211481d1_4seq1.xml","form_type":"4"}},{"id":2925927,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2021-01-04T21:30:08.000Z","date":"2020-12-31","kind":"exercise","acquired":true,"shares":7857,"price":5.6,"value":43999.2,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes: (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the Company's 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018;"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"(ii) the following RSUs (which vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the Reporting Person's continued service as of the applicable vesting date), and will be settled into common stock, par value $0.001 per share (the \"Common Stock\") of the Company upon vesting: (a) 28,667 RSUs granted on February 28, 2020 and unvested as of the date hereof, (b) 14,334 RSUs granted on July 22, 2019 and unvested as of the date hereof and (c) 1,358 RSUs granted on March 4, 2019 and unvested as of the date hereof; and"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F3","text":"(iii) 107,154 shares of Common Stock owned by the Reporting Person."}],"balance_after":333013,"source":{"system":"sec-edgar","filing":"0001104659-21-000337","document":"tm211481d1_4seq1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465921000337/tm211481d1_4seq1.xml","form_type":"4"}},{"id":3069883,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2020-08-04T20:31:55.000Z","date":"2020-07-31","kind":"exercise","acquired":true,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These stock options were originally granted on February 24, 2017 and became exercisable upon achievement of certain performance goals as determined in the discretion of the Compensation Committee of the Board of Directors of the Company."}],"balance_after":55650,"derivative":{"exercise_price":5.6,"expiration_date":"2027-02-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001104659-20-090308","document":"tm2026522d1_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465920090308/tm2026522d1_4.xml","form_type":"4"}},{"id":3069882,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-08-04T20:31:55.000Z","date":"2020-07-31","kind":"exercise","acquired":true,"shares":10000,"price":5.6,"value":56000.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes: (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the Company's 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018; (continue with footnote 2)"},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"(ii) the following RSUs (which vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the Reporting Person's continued service as of the applicable vesting date), and will be settled into common stock, par value $0.001 per share (the \"Common Stock\") of the Company upon vesting: (a) 28,667 RSUs granted on February 28, 2020 and unvested as of the date hereof, (b) 14,334 RSUs granted on July 22, 2019 and unvested as of the date hereof and (c) 1,358 RSUs granted on March 4, 2019 and unvested as of the date hereof; and (iii) 99,297 shares of Common Stock owned by the Reporting Person."}],"balance_after":325156,"source":{"system":"sec-edgar","filing":"0001104659-20-090308","document":"tm2026522d1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465920090308/tm2026522d1_4.xml","form_type":"4"}},{"id":3233283,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2020-03-03T22:00:58.000Z","date":"2020-02-28","kind":"grant","acquired":true,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The stock options were granted pursuant to the Plan. The shares underlying the stock options vest as to one-quarter of the award on each of the date of grant, the first anniversary of the date of grant, the second anniversary of the date of grant and the third anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":60000,"derivative":{"exercise_price":6.03,"expiration_date":"2030-02-28","underlying":"Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001104659-20-028654","document":"tm2011575d3_form4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465920028654/tm2011575d3_form4.xml","form_type":"4"}},{"id":3233282,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2020-03-03T22:00:58.000Z","date":"2020-02-28","kind":"grant","acquired":true,"shares":43000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\") which shall vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes: (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the Company's 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018; (ii) the following RSUs subject to vesting as set forth in footnote (1) and will be settled into common stock upon vesting: (a) 43,000 RSUs granted on February 28, 2020 and reported on this Form 4, (b) 28,667 RSUs granted on July 22, 2020 and unvested as of the date hereof and (c) 2,714 RSUs granted on March 4, 2019 and unvested as of the date hereof; and (iii) 72,947 shares of common stock owned by the reporting person."}],"balance_after":328828,"source":{"system":"sec-edgar","filing":"0001104659-20-028654","document":"tm2011575d3_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465920028654/tm2011575d3_form4.xml","form_type":"4"}},{"id":3346755,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-12-10T18:30:10.000Z","date":"2019-12-10","kind":"purchase","acquired":true,"shares":3000,"price":3.6765,"value":11029.5,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes (i) the following restricted stock units (\"RSUs\") that will be settled into common stock upon a \"Change In Control\" of the issuer, as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan: (a) 8,800 RSUs granted on March 15, 2018, (b) 15,700 RSUs granted on February 24, 2017, (c) 47,000 RSUs granted on June 7, 2016, and (d) 110,000 RSUs granted on April 8, 2015; (ii) the following unvested RSUs that are subject to vesting in three equal annual installments with the first installment vesting on the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and that will be settled into common stock upon vesting: (a) 28,667 RSUs granted on July 22, 2019, (b) 11,567 RSUs granted on February 28, 2018, and (c) 2,714 RSUs granted on March 4, 2019; and (iii) 67,447 shares of common stock owned by the reporting person, inclusive of the 3,000 shares of common stock reported on this Form 4."}],"balance_after":291895,"source":{"system":"sec-edgar","filing":"0001104659-19-071352","document":"tm1924904d1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465919071352/tm1924904d1_4.xml","form_type":"4"}},{"id":3358929,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-11-26T23:30:34.000Z","date":"2019-11-26","kind":"purchase","acquired":true,"shares":1000,"price":4.2702,"value":4270.2,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Includes (i) 10,000 shares held by the reporting person's husband in a 401(k) account (including the 1,000 shares reported on this Form 4) and (ii) 11,000 shares held by the reporting person's husband in an IRA account. The reporting person may be deemed the beneficial owner of all such shares."}],"balance_after":21000,"source":{"system":"sec-edgar","filing":"0001104659-19-067732","document":"tm1923981d1_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000110465919067732/tm1923981d1_4.xml","form_type":"4"}},{"id":3436421,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-08-16T20:24:11.000Z","date":"2019-08-16","kind":"purchase","acquired":true,"shares":6500,"price":4.83,"value":31395.0,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Includes (i) 9,000 shares held by the reporting person's husband in a 401(k) account and (ii) 11,000 shares held by the reporting person's husband in an IRA account, including the 6,500 shares reported on this Form 4. The reporting person may be deemed the beneficial owner of such shares."}],"balance_after":20000,"source":{"system":"sec-edgar","filing":"0001144204-19-040422","document":"tv527863_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419040422/tv527863_4.xml","form_type":"4"}},{"id":3440048,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-08-13T22:08:43.000Z","date":"2019-08-09","kind":"purchase","acquired":true,"shares":1500,"price":5.5156,"value":8273.4,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"Includes (i) 9,000 shares held by the reporting person's husband in a 401(k) account and (ii) 4,500 shares held by the reporting person's husband in an IRA account, including the 1,500 shares reported on this Form 4. The reporting person may be deemed the beneficial owner of such shares."}],"balance_after":13500,"source":{"system":"sec-edgar","filing":"0001144204-19-039650","document":"tv527557_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419039650/tv527557_4.xml","form_type":"4"}},{"id":3456847,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2019-07-25T00:17:16.000Z","date":"2019-07-22","kind":"grant","acquired":true,"shares":60000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"The stock option was granted pursuant to the Plan. The shares underlying the stock option vest as to one-quarter of the award on each of the date of grant, the first anniversary of the date of grant, the second anniversary of the date of grant and the third anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date."}],"balance_after":60000,"derivative":{"exercise_price":7.33,"expiration_date":"2029-07-22","underlying":"Common Stock","underlying_shares":60000},"source":{"system":"sec-edgar","filing":"0001144204-19-035843","document":"tv525810_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419035843/tv525810_4.xml","form_type":"4"}},{"id":3456846,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-07-25T00:17:16.000Z","date":"2019-07-22","kind":"grant","acquired":true,"shares":43000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\") which shall vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation, as defined in the Amended and Restated CytoSorbents Corporation 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018; (ii) the following RSUs subject to vesting as set forth in footnote (1) and will be settled into common stock upon vesting: (a) 43,000 RSUs granted on July 22, 2019 and reported on this Form 4, (b) 11,567 RSUs granted on February 28, 2018 and unvested as of the date hereof and (c) 2,714 RSUs granted on March 4, 2019 and unvested as of the date hereof; and (iii) 56,944 shares of common stock owned by the reporting person."}],"balance_after":295725,"source":{"system":"sec-edgar","filing":"0001144204-19-035843","document":"tv525810_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419035843/tv525810_4.xml","form_type":"4"}},{"id":3494456,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (right to buy)","published_at":"2019-06-11T21:28:49.000Z","date":"2019-06-07","kind":"exercise","acquired":false,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"On February 24, 2017, the reporting person was granted an option to purchase 89,000 shares of common stock pursuant to the Plan, which was to vest upon achievement of certain performance goals as determined in the discretion of the Compensation Committee of the Board of Directors of the Company. This grant was reported on a Form 4 filed on February 28, 2017. On February 28, 2018, the Compensation Committee of the Board of Directors of the Company determined that 85% of such performance criteria was achieved during 2017, resulting in vesting of 75,650 shares underlying this option."}],"balance_after":65650,"derivative":{"exercise_price":5.6,"expiration_date":"2027-02-24","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001144204-19-030603","document":"tv523397_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419030603/tv523397_4.xml","form_type":"4"}},{"id":3494455,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-06-11T21:28:49.000Z","date":"2019-06-07","kind":"exercise","acquired":true,"shares":10000,"price":5.6,"value":56000.0,"ownership":{"direct":true},"footnotes":[{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"Includes (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the Company's 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018, (ii) the following RSUs subject to vesting as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting: (a) 11,567 RSUs granted on February 28, 2018 and unvested as of the date hereof and (b) 2,714 RSUs granted on March 4, 2019 and unvested as of the date hereof and (iii) 56,944 shares of common stock owned by the reporting person, including the shares reported herein."}],"balance_after":252725,"source":{"system":"sec-edgar","filing":"0001144204-19-030603","document":"tv523397_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419030603/tv523397_4.xml","form_type":"4"}},{"id":3527834,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-05-14T19:29:32.000Z","date":"2019-05-10","kind":"purchase","acquired":true,"shares":3000,"price":6.4921,"value":19476.3,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $6.4466 to $6.4984, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range."},{"field":"ownership.nature","element":"natureOfOwnership","label":"F2","text":"These shares were acquired by the reporting person's husband and, as such, the reporting person may be deemed the beneficial owner of such shares."}],"balance_after":3000,"source":{"system":"sec-edgar","filing":"0001144204-19-025962","document":"tv521603_form4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419025962/tv521603_form4.xml","form_type":"4"}},{"id":3608695,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2019-03-07T02:10:03.000Z","date":"2019-03-04","kind":"grant","acquired":true,"shares":4070,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"These shares represent restricted stock units (\"RSUs\") which shall vest as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation, as defined in the 2014 Long-Term Incentive Plan: (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018, (ii) the following RSUs subject to vesting as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting: (a) 11,567 RSUs granted on February 28, 2018 and unvested as of the date hereof and (b) 4,070 RSUs granted on March 4, 2019 and reported on this Form 4 and (iii) 45,588 shares of common stock owned by the reporting person."}],"balance_after":242725,"source":{"system":"sec-edgar","filing":"0001144204-19-012635","document":"tv515702_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420419012635/tv515702_4.xml","form_type":"4"}},{"id":3829680,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2018-08-30T19:59:03.000Z","date":"2018-08-28","kind":"exercise","acquired":false,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on  August 23, 2017 (the \"Trading Plan\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These options became  exercisable upon the achievement of certain milestones connected to the Company's operations, as determined by the Company's Board of Directors."}],"balance_after":0,"derivative":{"exercise_price":2.875,"expiration_date":"2023-04-04","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001144204-18-047336","document":"tv502084_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420418047336/tv502084_4.xml","form_type":"4"}},{"id":3829679,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-08-30T19:59:03.000Z","date":"2018-08-28","kind":"sale","acquired":false,"shares":10000,"price":13.5,"value":135000.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on  August 23, 2017 (the \"Trading Plan\")."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018, (ii) the following RSUs subject to vesting as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting: (a) 10,938 of the RSUs granted to the reporting person on February 24, 2017 and unvested as of the date hereof, and (b) 23,134 RSUs granted on February 28, 2018 and unvested as of the date hereof and (iii) 34,432 shares of common stock owned by the reporting person."}],"balance_after":250004,"source":{"system":"sec-edgar","filing":"0001144204-18-047336","document":"tv502084_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420418047336/tv502084_4.xml","form_type":"4"}},{"id":3829678,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-08-30T19:59:03.000Z","date":"2018-08-28","kind":"exercise","acquired":true,"shares":10000,"price":2.875,"value":28750.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on  August 23, 2017 (the \"Trading Plan\")."}],"balance_after":260004,"source":{"system":"sec-edgar","filing":"0001144204-18-047336","document":"tv502084_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420418047336/tv502084_4.xml","form_type":"4"}},{"id":3850919,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Stock Option (Right to Buy)","published_at":"2018-08-07T19:18:29.000Z","date":"2018-08-03","kind":"exercise","acquired":false,"shares":10000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 23, 2017 (the \"Trading Plan\")."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"These options became exercisable upon the achievement of certain milestones connected to the Company's operations, as determined by the Company's Board of Directors."}],"balance_after":10000,"derivative":{"exercise_price":2.875,"expiration_date":"2023-04-04","underlying":"Common Stock","underlying_shares":10000},"source":{"system":"sec-edgar","filing":"0001144204-18-042396","document":"tv500351_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420418042396/tv500351_4.xml","form_type":"4"}},{"id":3850918,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2018-08-07T19:18:29.000Z","date":"2018-08-03","kind":"sale","acquired":false,"shares":3600,"price":12.151,"value":43743.6,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 23, 2017 (the \"Trading Plan\")."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The reporting person received an additional $0.599 per share pursuant to the terms of the Trading Plan."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F2","text":"Includes (i) the following RSUs that will be settled into common stock upon a \"Change In Control\" of CytoSorbents Corporation (the \"Company\"), as defined in the 2014 Long-Term Incentive Plan (the \"Plan\"): (a) 15,700 RSUs granted on February 24, 2017, (b) 47,000 RSUs granted on June 7, 2016, (c) 110,000 RSUs granted on April 8, 2015, and (d) 8,800 RSUs granted on March 15, 2018, (ii) the following RSUs subject to vesting as to one-third of the award on each of the date of grant, the first anniversary of the date of grant, and the second anniversary of the date of grant, subject to the reporting person's continued service as of the applicable vesting date, and will be settled into common stock upon vesting: (a) 10,938 of the RSUs granted to the reporting person on February 24, 2017 and unvested as of the date hereof, and (b) 23,134 RSUs granted on February 28, 2018 and unvested as of the date hereof and (iii) 34,432 shares of common stock owned by the reporting person."}],"balance_after":250004,"source":{"system":"sec-edgar","filing":"0001144204-18-042396","document":"tv500351_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420418042396/tv500351_4.xml","form_type":"4"}},{"id":3850917,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN 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This grant was reported on a Form 4 filed on June 9, 2016.  On January 30, 2017, the Board of Directors of the Company determined that 80% of such performance criteria was achieved during 2016, resulting in the vesting of 62,000 shares underlying this option."}],"balance_after":62000,"derivative":{"exercise_price":4.69,"expiration_date":"2026-06-07","underlying":"Common Stock","underlying_shares":62000},"source":{"system":"sec-edgar","filing":"0001144204-17-005341","document":"v458129_4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420417005341/v458129_4.xml","form_type":"4"}},{"id":4529997,"issuer":{"id":7625,"kind":"organization","name":"Cytosorbents Corp","symbol":"CTSO"},"owners":[{"id":92233,"kind":"person","name":"BLOCH KATHLEEN P.","position":1,"cik":"0001409212","reported_name":"BLOCH KATHLEEN P.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Common Stock","published_at":"2016-12-07T22:25:27.000Z","date":"2016-12-06","kind":"purchase","acquired":true,"shares":1000,"price":4.8292,"value":4829.2,"ownership":{"direct":false,"nature":"See Footnote"},"footnotes":[{"field":"ownership.nature","element":"natureOfOwnership","label":"F1","text":"The shares are held by the reporting person's husband in a 401(k) account, and as such, the reporting person may be deemed the beneficial owner of such shares."}],"balance_after":8000,"source":{"system":"sec-edgar","filing":"0001144204-16-138422","document":"v454630_4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1175151/000114420416138422/v454630_4.xml","form_type":"4"}}]}