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 JS
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Detailed Insider History for:
NET POWER INC: NPWR
Price: 9/25/26 52-Wk
High		 52-Wk
Low		 Mkt Cap (mm) Shrs Out (mm) 3-Mth Ave
Vol (m)		 Ind. Yield Short Int
% Float		 Inst. Owned Insider Owned
$1.63 $5.20 $1.35 $144 89 766 0.0% 5.7% 44.45% 47.44%
Exch Sector Industry Sub-Industry
NYSE Manufacturing Electronic And Other Electrical Equipment And Components, Except Computer Equipment Electrical Industrial Apparatus
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#
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Insider Statistics
T N H M S
Filer Name
Insider Title
Trans Type
Dollar Value
Shares Traded
Trans Date From
Trans Date To
Trans Price From
Trans Price To
Total Holdings
Delta % Owned
Owned
Other Info
Input Date
1
    
 
8 RIVERS CAPITAL LLC
BO
S
$469,595
250,000
9/8/26
9/9/26
---
$1.84
750,000
-25.0
I
---
9/10/26 - 6:01:14 pm
2
    
 
NPEH LLC
BO
S
$469,595
250,000
9/8/26
9/9/26
---
$1.84
750,000
-25.0
D
---
9/10/26 - 6:00:13 pm
3
    
 
NPEH LLC
BO
S
$463,333
242,900
8/25/26
8/26/26
---
$1.91
1,000,000
-19.5
D
---
8/27/26 - 6:02:36 pm
4
    
 
8 RIVERS CAPITAL LLC
BO
S
$463,333
242,900
8/25/26
8/26/26
---
$1.91
1,000,000
-19.5
I
---
8/27/26 - 6:00:13 pm
5
    
 
NPEH LLC
BO
S
$990,518
507,100
---
8/14/26
---
$1.95
1,242,900
-29.0
D
---
8/14/26 - 6:01:35 pm
6
    
 
8 RIVERS CAPITAL LLC
BO
S
$990,518
507,100
---
8/14/26
---
$1.95
1,242,900
-29.0
I
---
8/14/26 - 6:00:09 pm
7
    
 
NPEH LLC
BO
S
$405,415
250,000
8/12/26
8/13/26
---
$1.62
1,750,000
-12.5
D
---
8/14/26 - 6:01:35 pm
8
    
 
8 RIVERS CAPITAL LLC
BO
S
$405,415
250,000
8/12/26
8/13/26
---
$1.62
1,750,000
-12.5
I
---
8/14/26 - 6:00:09 pm
9
    
 
NPEH LLC
BO
S
$234,145
150,745
8/7/26
8/11/26
$1.53
$1.60
2,000,000
-7.0
D
---
8/11/26 - 6:00:31 pm
10
    
 
8 RIVERS CAPITAL LLC
BO
S
$234,145
150,745
8/7/26
8/11/26
$1.53
$1.60
2,000,000
-7.0
I
---
8/11/26 - 6:00:10 pm
11
    
 
8 RIVERS CAPITAL LLC
BO
S
$530,620
349,255
8/4/26
8/6/26
---
$1.51
2,150,745
-14.0
I
---
8/6/26 - 6:02:07 pm
12
    
 
NPEH LLC
BO
S
$530,620
349,255
8/4/26
8/6/26
---
$1.51
2,150,745
-14.0
D
---
8/6/26 - 6:01:11 pm
13
    
 
NPEH LLC
BO
S
$366,959
255,858
7/28/26
7/30/26
$1.41
$1.43
2,500,000
-9.3
D
---
7/30/26 - 6:00:57 pm
14
    
 
8 RIVERS CAPITAL LLC
BO
S
$366,959
255,858
7/28/26
7/30/26
$1.41
$1.43
2,500,000
-9.3
I
---
7/30/26 - 6:00:16 pm
15
    
 
8 RIVERS CAPITAL LLC
BO
S
$318,693
209,142
7/21/26
7/23/26
---
$1.51
2,755,858
-7.1
I
---
7/23/26 - 7:40:22 pm
16
    
 
NPEH LLC
BO
S
$318,693
209,142
7/21/26
7/23/26
---
$1.51
2,755,858
-7.1
D
---
7/23/26 - 7:37:52 pm
17
    
 
VELTMANN ALEJANDRA
DIR
JB
---
71,770
---
6/3/26
---
---
176,151
68.8
D
R
8/31/26 - 7:34:32 am
18
    
 
PETERSON CAROL R
DIR
JB
---
71,770
---
6/3/26
---
---
176,151
68.8
D
R
8/31/26 - 7:34:10 am
19
    
 
KELLIHER JOSEPH T
DIR
JB
---
71,770
---
6/3/26
---
---
176,151
68.8
D
R
8/31/26 - 7:33:46 am
20
    
 
ALEXANDER RALPH
DIR
JB
---
71,770
---
6/3/26
---
---
176,151
68.8
D
R
8/31/26 - 7:33:27 am
21
    
 
SHUMAN NED LELAND
CFO
3
---
---
---
5/18/26
---
---
529,801
---
D
R
5/27/26 - 9:54:01 pm
22
    
 
NPEH LLC
BO
S
$1,060,712
435,000
5/12/26
5/13/26
---
$2.43
2,965,000
-12.8
D
---
5/14/26 - 6:00:58 pm
23
    
 
8 RIVERS CAPITAL LLC
BO
S
$1,060,712
435,000
5/12/26
5/13/26
---
$2.43
2,965,000
-12.8
I
---
5/14/26 - 6:00:17 pm
24
    
 
NPEH LLC
BO
JS
---
3,000,000
---
3/6/26
---
---
17,729,880
-14.5
D
A
5/13/26 - 4:23:25 pm
25
    
 
NPEH LLC
BO
JB
---
3,000,000
---
3/6/26
---
---
3,400,000
750.0
D
A
5/13/26 - 4:23:25 pm
26
    
 
8 RIVERS CAPITAL LLC
BO
JS
---
3,000,000
---
3/6/26
---
---
17,729,880
-14.5
I
A
5/13/26 - 4:22:18 pm
27
    
 
8 RIVERS CAPITAL LLC
BO
JB
---
3,000,000
---
3/6/26
---
---
3,400,000
750.0
I
A
5/13/26 - 4:22:18 pm
28
    
 
8 RIVERS CAPITAL LLC
BO
JS
---
3,000,000
---
3/6/26
---
---
17,729,880
-14.5
I
---
3/10/26 - 6:02:02 pm
29
    
 
8 RIVERS CAPITAL LLC
BO
JB
---
3,000,000
---
3/6/26
---
---
3,400,000
750.0
I
---
3/10/26 - 6:02:02 pm
30
    
 
NPEH LLC
BO
JS
---
3,000,000
---
3/6/26
---
---
17,729,880
-14.5
D
---
3/10/26 - 6:01:11 pm
31
    
 
NPEH LLC
BO
JB
---
3,000,000
---
3/6/26
---
---
3,400,000
750.0
D
---
3/10/26 - 6:01:11 pm
32
    
 
NPEH LLC
BO
S
$204,250
100,000
---
3/3/26
---
$2.04
400,000
-20.0
D
---
3/5/26 - 6:16:18 pm
33
    
 
8 RIVERS CAPITAL LLC
BO
S
$204,250
100,000
---
3/3/26
---
$2.04
400,000
-20.0
I
---
3/5/26 - 6:15:41 pm
34
    
 
NPEH LLC
BO
S
$177,024
86,483
2/26/26
3/2/26
$2.00
$2.05
500,000
-14.7
D
---
3/2/26 - 6:01:50 pm
35
    
 
8 RIVERS CAPITAL LLC
BO
S
$177,024
86,483
2/26/26
3/2/26
$2.00
$2.05
500,000
-14.7
I
---
3/2/26 - 6:00:34 pm
36
    
 
NPEH LLC
BO
S
$396,869
188,517
2/19/26
2/20/26
---
$2.03
586,483
-24.3
D
---
2/23/26 - 6:01:10 pm
37
    
 
8 RIVERS CAPITAL LLC
BO
S
$396,869
188,517
2/19/26
2/20/26
---
$2.03
586,483
-24.3
I
---
2/23/26 - 6:00:25 pm
38
    
 
8 RIVERS CAPITAL LLC
BO
S
$369,330
175,000
2/13/26
2/18/26
---
$2.07
775,000
-18.4
I
---
2/18/26 - 6:44:52 pm
39
    
 
NPEH LLC
BO
S
$369,330
175,000
2/13/26
2/18/26
---
$2.07
775,000
-18.4
D
---
2/18/26 - 6:43:37 pm
40
    
 
8 RIVERS CAPITAL LLC
BO
S
$509,167
250,000
2/10/26
2/12/26
$2.02
$2.03
950,000
-20.8
I
---
2/12/26 - 6:25:08 pm
41
    
 
NPEH LLC
BO
S
$509,167
250,000
2/10/26
2/12/26
$2.02
$2.03
950,000
-20.8
D
---
2/12/26 - 6:24:19 pm
42
    
 
NPEH LLC
BO
S
$128,651
54,780
---
1/29/26
---
$2.35
1,200,000
-4.4
D
---
2/2/26 - 5:10:02 pm
43
    
 
8 RIVERS CAPITAL LLC
BO
S
$128,651
54,780
---
1/29/26
---
$2.35
1,200,000
-4.4
I
---
2/2/26 - 5:08:53 pm
44
    
 
8 RIVERS CAPITAL LLC
BO
S
$699,926
295,220
1/26/26
1/28/26
$2.35
$2.38
1,254,780
-19.0
I
---
1/28/26 - 6:00:56 pm
45
    
 
NPEH LLC
BO
S
$699,926
295,220
1/26/26
1/28/26
$2.35
$2.38
1,254,780
-19.0
D
---
1/28/26 - 6:00:13 pm
46
    
 
8 RIVERS CAPITAL LLC
BO
S
$605,475
230,000
---
1/16/26
---
$2.63
1,550,000
-12.9
I
---
1/16/26 - 7:20:31 pm
47
    
 
NPEH LLC
BO
S
$605,475
230,000
---
1/16/26
---
$2.63
1,550,000
-12.9
D
---
1/16/26 - 7:17:54 pm
48
    
 
8 RIVERS CAPITAL LLC
BO
S
$716,810
270,000
1/14/26
1/15/26
---
$2.57
1,780,000
-13.2
I
---
1/16/26 - 7:20:31 pm
49
    
 
NPEH LLC
BO
S
$716,810
270,000
1/14/26
1/15/26
---
$2.57
1,780,000
-13.2
D
---
1/16/26 - 7:17:54 pm
50
    
 
NPEH LLC
BO
S
$375,632
170,000
---
12/24/25
---
$2.21
2,050,000
-7.7
D
---
12/29/25 - 7:49:54 pm
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