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EdgarHawk

Peter J Mariani

Chief Financial Officer

Officer

Latest: CFO buying · June 2026

3 filings analyzed · 1 company · Latest 2026-06-16

Companies

Company Buys Sells Direction
Cytosorbents Corp CTSO 4 0 Net buying

Activity

June 2026
2026-06-16 Cytosorbents Corp CTSO
high
Buy
100,000 shares
$44,000
Significance 6/10

CFO Peter J Mariani buys 100.0K shares of CTSO at $0.44; stock down 69.1% from 52-week high, company unprofitable with -$5.1M net income.

CFO Peter J Mariani purchased 100,000 shares at $0.44 on 2026-06-15, increasing his holdings by 18.6% to 638.1K shares, while the stock trades at $0.43 — down 69.1% from its 52-week high and down 13.6% over the prior 30 days. His prior three purchases at CTSO (made in December 2024) each posted positive 90-day returns ranging from +10.9% to +19.7%, suggesting a pattern of well-timed accumulation at this ticker. However, the company reported a net loss of $5.1M against quarterly revenue of $8.9M, and the broader fundamentals remain unprofitable on an annual basis despite 4.1% year-over-year revenue growth. The transaction occurs as the stock trades near multi-year lows, and the CFO's historical success at timing CTSO entries warrants attention to whether this purchase reflects a contrarian view of value or simply continuation of a long-standing accumulation pattern in a structurally challenged business.

December 2024
2024-12-16 Cytosorbents Corp CTSO
medium
Buy
20,000 shares
$19,294
Significance 5/10

CFO MARIANI buys 20,000 shares of CTSO at $0.96 on 2024-12-13, now down -50.5% from 52-week high

MARIANI PETER J, the CFO, purchased 20,000 shares at $0.96, bringing his holdings to 401,363 shares (+5.2% increase). The transaction occurs in a context of significant price deterioration: the stock is -50.5% from its 52-week high of $1.84 and has declined -31.1% over the past 90 days, though it has recovered +1.7% in the last 30 days. The company remains unprofitable, reporting net income of $-2.3M in the latest quarter against revenue of $9.4M, though annual revenue growth stands at +4.8%. This purchase follows two other buys by MARIANI at CTSO on consecutive days (2024-12-12 and 2024-12-11), suggesting accumulation behavior during a depressed price period. His cross-ticker track record shows 2 prior buys, but outcomes for same-ticker purchases cannot yet be measured. The clustering of three buys within a narrow window while the stock trades well below recent highs warrants attention to whether fundamentals are stabilizing or whether the CFO has specific conviction regarding valuation.

2024-12-13 Cytosorbents Corp CTSO
medium
Buy
31,363 shares
$27,975
Significance 6/10

CFO MARIANI buys 31,363 shares ($28.0K) at $0.89 across 2 transactions; holdings rise 9.0% as CTSO trades -45.1% from 52-week high

MARIANI PETER J, Chief Financial Officer, executed 2 separate purchases totaling 31,363 shares for $27,974.84 at $0.89 per share on 2024-12-11 and 2024-12-12, raising his holdings from 350,000 to 381,363 shares (a 9.0% increase). The purchases occurred at a price point 11.9% below the current $1.01 level and represent a notable accumulation given that CTSO trades -45.1% from its 52-week high of $1.84, following a 30-day rally of +9.1%. Against the backdrop of the company's unprofitable full-year position (net income of $-2,334,091.00 in the latest quarter) and $55.2M market cap, the timing of this open-market accumulation at depressed prices warrants investor attention. The CFO's willingness to deploy capital into company shares during a period of net losses and elevated distance from recent highs provides a data point on insider perspective regarding valuation and near-term outlook.

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