Microcap Ledger

Tickers · $CTSO

Cytosorbents Corp $CTSO

By Microcap Ledger desk · CIK 0001175151

Facts as of . Built from SEC filings and our own data. Small caps move fast; check the latest filings.

Snapshot

Exchange
Nasdaq Capital Market
Sector
Surgical & Medical Instruments & Apparatus
Headquarters
Princeton, NJ
Fiscal year end
December 31
Shares outstanding
62,842,748 [10-Q 2026-08-06]
as of 2026-07-31

Sources: [10-K 2026-03-30]

What the company doesAI summary of filing

CytoSorbents develops and commercializes blood purification technologies based on porous polymer beads that remove toxic substances from blood. The company generates revenue from three marketed products: CytoSorb, approved in the European Union and distributed in over 70 countries with more than 300,000 devices used cumulatively; ECOS-300CY for organ transplant preservation, approved in the E.U.; and VetResQ for veterinary critical care, commercialized primarily in the U.S. The company is also developing DrugSorb-ATR, an investigational device to reduce bleeding complications from blood thinners during cardiac surgery, which has received FDA Breakthrough Device Designation but is not yet approved in the U.S. or Canada. [10-K 2026-03-30]

Segments: CytoSorb, DrugSorb-ATR, ECOS-300CY, VetResQ

Financial health

From XBRL company facts (USD)
PeriodRevenueNet incomeOperating cash flowCashFiling
6 months to Jun 2026$18.50M−$9.55M −$1.75M$4.41M[10-Q 2026-08-06]
FY ended Dec 2025$37.06M−$8.20M −$12.38M$6.25M[10-K 2026-03-30]
FY ended Dec 2024$35.59M−$20.72M −$14.43M$3.28M[10-K 2026-03-30]
Quarterly cash burn
−$872.5K
Cash runway Estimate
~15.2 months

Estimate: cash at the end of the period (6 months to Jun 2026) divided by the average monthly operating cash outflow over that period. Ignores any cash raised or spent since, and any financing.

Capital structure and dilution

Summary only. How these instruments work: Dilution & financing desk.

Share count
DateShares outstandingFiling
2024-11-0554,679,569[10-Q 2024-11-07]
2025-03-3162,500,000[10-K 2025-03-31]
2025-05-1362,610,376[10-Q 2025-05-14]
2025-08-0162,761,805[10-Q 2025-08-07]
2025-11-1062,804,305[10-Q 2025-11-13]
2026-03-2062,700,000[10-K/A 2026-04-15]
2026-05-0762,794,748[10-Q 2026-05-13]
2026-07-3162,842,748[10-Q 2026-08-06]
Shelf registration
S-3 filed 2024-07-26; declared effective 2024-09-30 [S-3 2024-07-26]

Listing status

Current status: 3 Form 8-K Item 3.01 filing(s) in the last 24 months, most recent 2026-07-06. Item 3.01 covers delisting notices, failures to meet a listing rule and listing transfers; read the filing for which one.

DateEventDetailsDeadlineFiling
2026-07-068-K Item 3.01Notice of delisting or failure to satisfy a continued listing rule or standard; or transfer of listing—[8-K 2026-07-06]
2026-04-028-K Item 3.01Notice of delisting or failure to satisfy a continued listing rule or standard; or transfer of listing—[8-K 2026-04-02]
2025-10-038-K Item 3.01Notice of delisting or failure to satisfy a continued listing rule or standard; or transfer of listing—[8-K 2025-10-03]

More on deficiency notices and uplistings: Listing status desk.

Who owns it

Recent Form 4 transactions
DateInsiderTypeSharesPriceFiling
2026-09-15Chan Phillip P.buy3,774$6.00[4 2026-09-16]
2026-09-15Sobel Alan D.buy1,900$6.12[4 2026-09-16]
2026-09-15Sobel Alan D.buy500$6.05[4 2026-09-16]
2026-09-15Sobel Alan D.buy100$6.01[4 2026-09-16]
2026-09-14Capponi Vincentbuy1,800$6.07[4 2026-09-16]
2026-09-14Capponi Vincentbuy273$5.90[4 2026-09-16]
2026-09-04Chan Phillip P.buy200,000$0.35[4 2026-09-09]
2026-06-15Mariani Peter Jbuy100,000$0.44[4 2026-06-16]
2026-06-15Chan Phillip P.buy10,333$0.43[4 2026-06-15]
2026-06-12Chan Phillip P.buy251,136$0.40[4 2026-06-15]
2025-11-18Chan Phillip P.grant100,000$0.64[4 2025-11-20]

Catalysts and calendar

Recent filings and releases
DateTypeTitle
2026-09-238-KRegulation FD disclosure; Other events
2026-09-088-KCharter, bylaws or fiscal year change
2026-08-148-KShareholder vote results
2026-08-078-KRegulation FD disclosure
2026-08-068-KResults of operations
2026-08-0610-QQuarterly report
2026-07-068-KListing notice or transfer
2026-06-25DEF 14AProxy statement
2026-06-258-KRegulation FD disclosure
2026-06-11PRE 14AProxy statement
2026-05-1310-QQuarterly report
2026-05-138-KResults of operations

Facts as of . Small caps move fast; check the latest filings.