InsiderClue
← All stocks

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

37
Insider
Date
Role
Action
Shares
Price
Amount
Kraus Al
31 Aug 2021
Director
Sold after exercise
4,000
$9.40
$37.59K
Kraus Al
10 Nov 2020
Director
Sold after exercise
8,000
$8.00
$64.00K
Capponi Vincent
27 Apr 2020
Chief Operating Officer
Sold after exercise
10,000
$10.00
$100.00K
Capponi Vincent
10 Mar 2020
Chief Operating Officer
Sold after exercise
4,677
$6.00
$28.06K
Chan Phillip P.
7 Dec 2018
President and CEO
Sold after exercise
24,337
$9.37
$228.03K
Chan Phillip P.
7 Sep 2018
President and CEO
Sold after exercise
2,731
$14.11
$38.53K
Chan Phillip P.
6 Sep 2018
President and CEO
Sold after exercise
2,900
$14.75
$42.78K
Chan Phillip P.
5 Sep 2018
President and CEO
Sold after exercise
5,187
$14.85
$77.03K
Chan Phillip P.
5 Sep 2018
President and CEO
Sold after exercise
600
$14.85
$8.91K
Kraus Al
30 Aug 2018
Director
Sold after exercise
26,000
$14.47
$376.28K
Capponi Vincent
29 Aug 2018
Chief Operating Officer
Sold after exercise
20,000
$14.00
$280.00K
BLOCH KATHLEEN P.
28 Aug 2018
Chief Financial Officer
Sold after exercise
10,000
$13.50
$135.00K
Capponi Vincent
28 Aug 2018
Chief Operating Officer
Sold after exercise
9,565
$13.00
$124.35K
Capponi Vincent
3 Aug 2018
Chief Operating Officer
Sold after exercise
7,600
$13.08
$99.41K
BLOCH KATHLEEN P.
3 Aug 2018
Chief Financial Officer
Sold after exercise
3,600
$12.15
$43.74K
BLOCH KATHLEEN P.
3 Aug 2018
Chief Financial Officer
Sold after exercise
6,200
$12.75
$79.05K
BLOCH KATHLEEN P.
3 Aug 2018
Chief Financial Officer
Sold after exercise
200
$12.85
$2.57K
Capponi Vincent
2 Aug 2018
Chief Operating Officer
Sold after exercise
2,835
$13.00
$36.86K
Capponi Vincent
15 Jun 2018
Chief Operating Officer
Sold after exercise
8,633
$12.00
$103.60K
Capponi Vincent
14 Jun 2018
Chief Operating Officer
Sold after exercise
11,367
$12.00
$136.40K
Capponi Vincent
17 May 2018
Chief Operating Officer
Sold after exercise
20,000
$10.00
$200.00K
Capponi Vincent
17 May 2018
Chief Operating Officer
Sold after exercise
8,000
$10.00
$80.00K
BLOCH KATHLEEN P.
16 May 2018
Chief Financial Officer
Sold after exercise
12,400
$9.00
$111.60K
Capponi Vincent
16 May 2018
Chief Operating Officer
Sold after exercise
4,846
$9.00
$43.61K
BLOCH KATHLEEN P.
15 May 2018
Chief Financial Officer
Sold after exercise
12,400
$8.75
$108.50K
Capponi Vincent
15 May 2018
Chief Operating Officer
Sold after exercise
3,154
$9.00
$28.39K
Capponi Vincent
15 May 2018
Chief Operating Officer
Sold after exercise
4,000
$9.00
$36.00K
BLOCH KATHLEEN P.
14 May 2018
Chief Financial Officer
Sold after exercise
10,000
$8.50
$85.00K
BLOCH KATHLEEN P.
17 Apr 2018
Chief Financial Officer
Sold after exercise
120
$8.25
$990.00
BLOCH KATHLEEN P.
15 Mar 2018
Chief Financial Officer
Sold after exercise
11,176
$8.25
$92.20K
BLOCH KATHLEEN P.
13 Mar 2018
Chief Financial Officer
Sold after exercise
1,104
$8.25
$9.11K
BLOCH KATHLEEN P.
21 Feb 2018
Chief Financial Officer
Sold after exercise
10,000
$8.00
$80.00K
BLOCH KATHLEEN P.
12 Jan 2018
Chief Financial Officer
Sold after exercise
12,400
$7.75
$96.10K
BLOCH KATHLEEN P.
8 Jan 2018
Chief Financial Officer
Sold after exercise
10,000
$7.50
$75.00K
BLOCH KATHLEEN P.
8 Jan 2018
Chief Financial Officer
Sold after exercise
12,400
$7.25
$89.90K
BLOCH KATHLEEN P.
8 Jan 2018
Chief Financial Officer
Sold after exercise
10,000
$7.15
$71.50K
Capponi Vincent
27 Nov 2017
Chief Operating Officer
Sold after exercise
4,000
$7.00
$28.00K
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