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Cytosorbents Corp

CTSO Net buying
CIK 0001175151 #5012 in the set updated 17 Sep 2026
Bought (12 mo)
$269.33K
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
+$269.33K
+$269.33K against sales at will

By person

6 insiders · 10 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Chan Phillip P.
Chief Executive Officer
$197.54K (4)
—
+$197.54K
100,996
0.1607%
$606.99K
—
MARIANI PETER J
Chief Financial Officer
$44.00K (1)
—
+$44.00K
638,113
1.02%
$3.84M
+82.3%
Sobel Alan D.
Director
$15.25K (3)
—
+$15.25K
9,887
0.0157%
$59.42K
—
Capponi Vincent
President and COO
$12.54K (2)
—
+$12.54K
40,387
0.0643%
$242.73K
—
Deliargyris Efthymios
Chief Medical Officer
—
—
—
473,025
0.7527%
$2.84M
+22.3%
BATOR MICHAEL G.
Director
—
—
—
151,273
0.2407%
$909.15K
+20.6%

Individual transactions

10
Insider
Date
Role
Action
Shares
Price
Amount
Sobel Alan D.
15 Sep 2026
Director
Buy
100
$6.01
$601.00
Sobel Alan D.
15 Sep 2026
Director
Buy
500
$6.05
$3.03K
Sobel Alan D.
15 Sep 2026
Director
Buy
1,900
$6.12
$11.63K
Chan Phillip P.
15 Sep 2026
Chief Executive Officer
Buy
3,774
$6.00
$22.64K
Capponi Vincent
14 Sep 2026
President and COO
Buy
273
$5.90
$1.61K
Capponi Vincent
14 Sep 2026
President and COO
Buy
1,800
$6.07
$10.93K
Chan Phillip P.
4 Sep 2026
Chief Executive Officer
Buy
200,000
$0.35
$70.00K
Chan Phillip P.
15 Jun 2026
Chief Executive Officer
Buy
10,333
$0.43
$4.44K
MARIANI PETER J
15 Jun 2026
Chief Financial Officer
Buy
100,000
$0.44
$44.00K
Chan Phillip P.
12 Jun 2026
Chief Executive Officer
Buy
251,136
$0.40
$100.45K
Show all 10 transactions →

What was left out

Form 4 filings counted 7
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 100,000
History held since 7 Dec 2016