Insider · CIK 0001222357
Peter J Mariani
Files at CTSO (Cytosorbents Corp). First filing Dec 13, 2024, latest Jun 16, 2026.
Peter J Mariani files SEC Form 4 as CFO at CTSO (Cytosorbents Corp). Since Dec 13, 2024, Peter J Mariani has reported 3 open-market buys worth $91k and 0 open-market sells worth $0, the latest filed on Jun 16, 2026.
A track record needs three past buys with six months of prices behind them; Peter J Mariani has 2, so none is measured yet.
The newest scored trade: bought $44k of CTSO on Jun 15, 2026, filed Jun 16, 2026, scored 47 (moderate). In the last 12 months: 1 buy worth $44k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
CTSO: Cytosorbents Corp
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 47Moderate | Cytosorbents Corp | $44k 100,000 shares | +19% | +11% from low-67% from high | |
| 30Weak | CTSObuy Cytosorbents Corp | $19k 20,000 shares | +5% | - | |
| 30Weak | CTSObuy Cytosorbents Corp | $28k 31,363 shares | +9% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Aug 19, 2025 | CTSO Cytosorbents Corp | 10,548 0.02% of outstanding | $11k | Aug 19, 2025 | none |
Transactions
Every row this insider has filed, 12 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jun 15, 2026 | CTSO Cytosorbents Corp | POpen-market purchase Common Stock | +100,000 | $0.44 | $44k | 638,113 | Jun 16, 2026 |
| Aug 8, 2025 | CTSO Cytosorbents Corp | AGrant or award Common Stock | +71,500 | $0.00 | $0 | 538,113 | Aug 8, 2025 |
| Aug 8, 2025 | CTSO Cytosorbents Corp | AGrant or award Stock Option (Right to Buy)derivative | +90,000 | $0.00 | $0 | 90,000 | Aug 8, 2025 |
| Feb 24, 2025 | CTSO Cytosorbents Corp | OOut-of-the-money exercise Common Stock | +32,625 | $1.13 | $37k | 466,613 | Feb 26, 2025 |
| Feb 24, 2025 | CTSO Cytosorbents Corp | OOut-of-the-money exercise Series A Right Warrants (right to buy)derivative | -32,625 | $1.13 | $37k | 0 | Feb 26, 2025 |
| Jan 17, 2025 | CTSO Cytosorbents Corp | XIn-the-money exercise Common Stock | +32,625 | $1.00 | $33k | 433,988 | Jan 22, 2025 |
| Jan 17, 2025 | CTSO Cytosorbents Corp | XIn-the-money exercise Subscription Rights (right to buy)derivative | -32,625 | $0.00 | $0 | 0 | Jan 22, 2025 |
| Jan 17, 2025 | CTSO Cytosorbents Corp | JOther Series A Right Warrantsderivative | +32,625 | - | - | 32,625 | Jan 22, 2025 |
| Jan 17, 2025 | CTSO Cytosorbents Corp | JOther Series B Right Warrantsderivative | +32,625 | - | - | 32,625 | Jan 22, 2025 |
| Dec 13, 2024 | CTSO Cytosorbents Corp | POpen-market purchase Common Stock | +20,000 | $0.96 | $19k | 401,363 | Dec 16, 2024 |
| Dec 11, 2024 | CTSO Cytosorbents Corp | POpen-market purchase Common Stock | +11,363 | $0.89 | $10k | 361,363 | Dec 13, 2024 |
| Dec 12, 2024 | CTSO Cytosorbents Corp | POpen-market purchase Common Stock | +20,000 | $0.89 | $18k | 381,363 | Dec 13, 2024 |
Questions about Peter J Mariani
Answered from the filings on this page, as of the latest one.
Is Peter J Mariani buying or selling?
In the last 12 months Peter J Mariani reported 1 open-market buy worth $44k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $44k of CTSO on Jun 15, 2026. Grants, option exercises and tax withholding are not counted.
How did Peter J Mariani's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Peter J Mariani has 2.
Where does Peter J Mariani file Form 4?
Peter J Mariani has filed Form 4 at CTSO (Cytosorbents Corp) as Chief Financial Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.