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buyModerate cluster of 2

Peter J Mariani bought $44k of CTSO

Chief Financial Officer at Cytosorbents Corp. 100,000 shares at an average of $0.44, traded Jun 15, 2026, filed Jun 16, 2026.

Conviction score
47
Value
$44k
100,000 shares
Holdings after
638,113
+19% from before
From 52-week low
+11%
low $7.76, close $8.64
From 52-week high
-67%
high $25.80, as of Jun 15, 2026

Score components

  • Role
    CFO
    +22
  • Trade size
    $44k at market
    +6
  • Relative to holdings
    Holdings up 19%
    +3
  • Price context
    67% below the 52-week high
    +8
  • Cluster
    2 insiders buying within 14 days
    +8
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

CTSOOct 9, 2026 · close 3.79
Since filing Jun 16, 2026: -63.5%SPY +4.3% · excess -67.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001104659-26-074291, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 15, 2026POpen-market purchase
Common Stock
+100,000$0.44$44k638,113Jun 16, 2026

Related signals

Other insiders at Cytosorbents Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
38Weak
CTSObuy 3
Cytosorbents Corp
Vincent Capponi
President and COO
$13k
2,073 shares
+5%
45Moderate
CTSObuy 3
Cytosorbents Corp
Phillip P. Chan
Chief Executive Officer
$23k
3,774 shares
+4%
36Weak
CTSObuy 3
Cytosorbents Corp
Alan D. Sobel
director
$15k
2,500 shares
+34%
51Moderate
CTSObuy 3
Cytosorbents Corp
Phillip P. Chan
Chief Executive Officer
$70k
200,000 shares
+11%
64Notable
CTSObuy 2
Cytosorbents Corp
Phillip P. Chan
Chief Executive Officer
$105k
261,469 shares
+18%
30Weak
CTSObuy
Cytosorbents Corp
Peter J Mariani
Chief Financial Officer
$19k
20,000 shares
+5%
30Weak
CTSObuy
Cytosorbents Corp
Peter J Mariani
Chief Financial Officer
$28k
31,363 shares
+9%

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.