CTSO insider buying & filings

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CTSOCytosorbents Corp

NasdaqCM · Healthcare · $18.06M

$5.73

-5.45% · Sep 16

Three insiders bought $50.4K in two days.
Led by Chan Phillip P., chief executive officer.

Last Form 4 Sep 16 · scanned 1m ago

Price · 1Y · daily● 9 buys◆ 4 8-K

▸ hover a marker for the filing · drag to zoom · daily bars sharpen to 30-min on close ranges · 4 moves explained

Reverse-split 2×. When a company does a reverse split, the chart rewrites its old prices to look far bigger than they really were — so the high early prices here aren't what CTSO ever actually traded at. The drop is real, but those huge old numbers aren't.

AI brief · from the filings on this pagePro

The filings, the score and the setup on this page, read for you in about ten seconds — what the insiders did, and what stands against it.

▸ Included with Pro →

Market cap

$18.06M

Float

2.7M

86% public

Short % float

Pro

Price / profit

—

not yet profitable

Price / future profit

—

Price / sales

0.5

The buyers

▸ each insider's past open-market buys, measured ~6 months (120 trading days) later, against the S&P over the same spans · split-adjusted · pre-scheduled 10b5-1 plan trades excluded · past outcomes, not predictions

Chief Executive Officer

Chan Phillip P.

Bought $100.5K on Jun 12 — 251,136 sh @ $0.4000, held direct, 15% of their stake.

First Form 4 on file

no positions we can measure against the market — the record starts here

Chief Financial Officer

Mariani Peter J

Bought $44.0K on Jun 15 — 100,000 sh @ $0.4400, held direct, 16% of their stake.

First Form 4 on file

no positions we can measure against the market — the record starts here

Director

Sobel Alan D.

Bought $11.6K on Sep 15 — 1,900 sh @ $6.12, held direct, 21% of their stake.

First Form 4 on file

no positions we can measure against the market — the record starts here

The record

newest first

DateTypeInsiderOf stakeShares @ priceValue

Sep 16BUYChan Phillip P.Chief Executive Officer+3.7%direct3,774 @ $6.00$22.6K

Sep 16BUYCapponi VincentPresident and COO+0.7%direct273 @ $5.90$1.6K

Sep 16BUYCapponi VincentPresident and COO+4.5%direct1,800 @ $6.07$10.9K

Sep 16BUYSobel Alan D.Director+1.0%direct100 @ $6.01$601.00

Sep 16BUYSobel Alan D.Director+5.1%direct500 @ $6.05$3.0K

9 more transactions on Pro →

Context

Wall St

$2.88 avg target

-49.8% vs today · 2 analysts

▸ relayed analyst opinion, which tends to run optimistic — not our forecast or advice

Earnings · EPS vs forecast

1 of 4 quarters beat

Q1 '26−$0.08 act−$0.03

Q4 '25−$0.09 act−$0.04

Q3 '25−$0.05 act−$0.00

Q2 '25$0.03 act+$0.09

Coverage

CytoSorbents Corp (CTSO) Q1 2026 Earnings Call Highlights: Navigating Challenges with Strategic ...GuruFocus.com · 05-14 Transcript: CytoSorbents Q1 2026 Earnings Conference CallBenzinga · 05-13 Cytosorbents (CTSO) Q4 2025 Earnings TranscriptMotley Fool · 03-26 Cytosorbents Corporation Q4 2025 Earnings Call SummaryMoby · 03-26

The file stays open

14 filings on record.
The next one will be too.

All candidates

▸ SEC EDGAR · FINRA · Nasdaq — public sources only · research, not advice

Chan Phillip P.

Mariani Peter J

Sobel Alan D.

14 filings on record.The next one will be too.

14 filings on record.
The next one will be too.