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Cytosorbents Corp

CTSO Net buying
CIK 0001175151 #5012 in the set updated 17 Sep 2026
Bought (120 mo)
$1.25M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$3.28M
$0.00 on a plan · $3.28M straight out of an exercise
Sold at will
$0.00
0 of 37 sales
Net
−$2.02M
+$1.25M against sales at will

By person

11 insiders · 133 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Capponi Vincent
President and COO
$67.30K (9)
$1.32M (14) scheduled
−$1.26M
40,387
0.0643%
$242.73K
—
BLOCH KATHLEEN P.
Chief Financial Officer
$210.51K (16)
$1.08M (15) scheduled
−$869.75K
621,941
0.9897%
$3.74M
+434.1%
Kraus Al
Director
$9.80K (1)
$477.87K (3) scheduled
−$468.08K
142,046
0.2260%
$853.70K
+22.7%
Chan Phillip P.
Chief Executive Officer
$645.03K (19)
$395.27K (5) scheduled
+$249.76K
100,996
0.1607%
$606.99K
—
MARIANI PETER J
Chief Financial Officer
$91.27K (4)
—
+$91.27K
638,113
1.02%
$3.84M
—
BATOR MICHAEL G.
Director
$89.89K (11)
—
+$89.89K
151,273
0.2407%
$909.15K
+140.1%
Sobel Alan D.
Director
$65.43K (6)
—
+$65.43K
9,887
0.0157%
$59.42K
—
Deliargyris Efthymios
Chief Medical Officer
$30.00K (1)
—
+$30.00K
473,025
0.7527%
$2.84M
—
Jones Edward Raymond
Director
$23.74K (4)
—
+$23.74K
88,834
0.1414%
$533.89K
+41.0%
Kim Jiny
Director
$11.91K (2)
—
+$11.91K
77,819
0.1238%
$467.69K
—
Mortensen Eric R.
Chief Medical Officer
$10.10K (1)
—
+$10.10K
148,932
0.2370%
$895.08K
+64.4%

Individual transactions

22
Insider
Date
Role
Action
Shares
Price
Amount
MARIANI PETER J
17 Jan 2025
Chief Financial Officer
Exercised, kept
32,625
$1.00
$32.63K
Chan Phillip P.
17 Jan 2025
Chief Executive Officer
Exercised, kept
90,832
$1.00
$90.83K
Sobel Alan D.
17 Jan 2025
Director
Exercised, kept
21,950
$1.00
$21.95K
Deliargyris Efthymios
17 Jan 2025
Chief Medical Officer
Exercised, kept
16,233
$1.00
$16.23K
Capponi Vincent
17 Jan 2025
President and COO
Exercised, kept
31,760
$1.00
$31.76K
BATOR MICHAEL G.
17 Jan 2025
Director
Exercised, kept
15,879
$1.00
$15.88K
Capponi Vincent
4 Apr 2023
See Remarks
Exercised, kept
10,000
$2.88
$28.75K
Chan Phillip P.
3 Apr 2023
Chief Executive Officer
Exercised, kept
30,500
$2.88
$87.69K
Kraus Al
6 Feb 2023
Director
Exercised, kept
12,000
$2.65
$31.80K
Jones Edward Raymond
9 Dec 2021
Director
Exercised, kept
4,000
$4.13
$16.50K
BLOCH KATHLEEN P.
31 Dec 2020
Chief Financial Officer
Exercised, kept
7,857
$5.60
$44.00K
Jones Edward Raymond
18 Aug 2020
Director
Exercised, kept
4,000
$3.35
$13.40K
BLOCH KATHLEEN P.
31 Jul 2020
Chief Financial Officer
Exercised, kept
10,000
$5.60
$56.00K
Chan Phillip P.
5 May 2020
Chief Executive Officer
Exercised, kept
14,100
$9.39
$132.40K
Capponi Vincent
5 May 2020
President and COO
Exercised, kept
10,123
$9.26
$93.74K
Capponi Vincent
16 Aug 2019
Chief Operating Officer
Exercised, kept
4,600
$4.33
$19.90K
Chan Phillip P.
15 Aug 2019
President and CEO
Exercised, kept
75,000
$3.45
$258.75K
Mortensen Eric R.
14 Aug 2019
Chief Medical Officer
Exercised, kept
5,000
$4.50
$22.50K
Chan Phillip P.
7 Jun 2019
President and CEO
Exercised, kept
20,000
$4.33
$86.50K
BLOCH KATHLEEN P.
7 Jun 2019
Chief Financial Officer
Exercised, kept
10,000
$5.60
$56.00K
Chan Phillip P.
11 Jun 2018
President and CEO
Exercised, kept
8,000
$3.75
$30.00K
Capponi Vincent
16 Jan 2018
Chief Operating Officer
Exercised, kept
44,000
$6.25
$275.00K
Show all 133 transactions →

What was left out

Form 4 filings counted 201
Amendments (4/A) skipped 1
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 37
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 3,890,418
History held since 7 Dec 2016