PM
Peter J Mariani
Chief Financial Officer

Peter J Mariani insider trades: Cytosorbents (CTSO) stock buys and sales

Chief Financial Officer, Cytosorbents Last trade Jun 15, 2026 48 Form 4 filings
$0
Sold, last 12 months
0 sales
$44K
Bought, last 12 months
1 buy
14
Open-market trades
since 2012
4
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Peter reports to the SEC

Open-market buys and sales

14 trades reported on SEC Form 4, newest first

DateStockTypeValue
Jun 15, 2026CTSO↑ Buy$44K
Dec 13, 2024CTSO↑ Buy$19K
Dec 12, 2024CTSO↑ Buy$28K
Dec 11, 2023AXGN↓ Sell$94K
Feb 1, 2023AXGN↓ Sell$410K
Jan 27, 2023AXGN↓ Sell$634K
Nov 16, 2022AXGN↓ Sell$127K
Dec 29, 2020AXGN↓ Sell$23K
Dec 21, 2020AXGN↓ Sell$8K
Oct 30, 2020AXGN↓ Sell10b5-1$939K
Oct 7, 2016AXGN↑ Buy$25K
Feb 26, 2014HNSN↓ Sell$100K
Mar 5, 2013HNSN↓ Sell$17K
Mar 1, 2012HNSN↓ Sell$20K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other CTSO insiders

Open-market trades in the last 12 months

About Peter J Mariani's insider trades

Peter J Mariani is Chief Financial Officer at Cytosorbents (CTSO). Since Mar 1, 2012, Peter has reported 4 open-market purchases worth $116K and 10 sales worth $2.4M on SEC Form 4. In the last 12 months: 1 buy ($44K).

1 sale (40% of the value sold) was made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so it says little about how the insider sees the stock today.

Their filings also include grants and awards (29 filings), shares withheld for taxes (14 filings), option exercises (10 filings), shares returned to the company (3 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CTSO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.