Cytosorbents Corp

2026 Annual Meeting Date

The Board of Directors of the Company has set the date of the Company’s 2026 Annual Meeting of Stockholders (“Annual Meeting”) to August 13, 2026. The exact time and place of the 2026 Annual Meeting will be specified in our Notice of 2026 Annual Meeting and related proxy statement for the 2026 Annual Meeting.

Because the date of the 2026 Annual Meeting is more than 30 days from the first anniversary of our 2025 Annual Meeting, there is a new deadline for the receipt of any stockholder proposals submitted for the 2026 Annual Meeting. If a stockholder desires to present a proposal for inclusion in our proxy statement for the 2026 Annual Meeting pursuant to Rule 14a-8 under the Exchange Act (“Rule 14a-8”), the proposal must be submitted in writing to us for receipt not later than May 27, 2026, which is 14 days following the date hereof. Stockholders who wish to raise a proposal for consideration at the 2026 Annual Meeting, but who do not wish to submit a proposal for inclusion in our proxy materials pursuant to Rule 14a-8, should comply with our bylaws and deliver to us a copy of their proposal no later than May 27, 2026. If a stockholder fails to provide such notice, the respective proposal may not be addressed in our proxy materials and the proxies may exercise their discretionary voting authority if the proposal is raised at the 2026 Annual Meeting. In addition to satisfying the requirements of the notice provisions of our bylaws, proposals must comply with Delaware law and the proxy rules promulgated by the Securities and Exchange Commission, including Rule 14a-8 if applicable, and stockholders who intend to solicit proxies in support of director nominees other than our nominees must provide us with the information required by Rule 14a-19(b) under the Exchange Act. In either case, proposals should be sent to CytoSorbents Corporation, 305 College Road East, Princeton, New Jersey 08540 Attn: Effie Perdikis, Executive Assistant.

Insider Trading Arrangements

No director or officer (as defined in Rule 16a-1(f) promulgated under the Exchange Act) of the Company adopted orterminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as those terms are defined in Regulation S-K, Item 408 during the quarter ended March 31, 2026.