Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date |
Reported DateTime |
Company | Symbol | Insider Relationship |
Shares Traded |
Average Price |
Total Amount |
Shares Owned |
Filing |
2023-09-12 Sale |
2023-09-14 4:36 pm |
NET Power Inc. | NPWR | MAHON JAMES General Counsel and Secretary |
31,394 | $15.1 | $474,191 | 0 (Direct) |
View |
2023-09-08 Sale |
2023-09-12 4:15 pm |
NET Power Inc. | NPWR | MAHON JAMES General Counsel and Secretary |
40,000 | $15.41 | $616,514 | 31,394 (Direct) |
View |
2023-09-06 Sale |
2023-09-08 4:43 pm |
NET Power Inc. | NPWR | MAHON JAMES General Counsel and Secretary |
28,606 | $15.22 | $435,381 | 71,394 (Direct) |
View |
2023-09-01 Sale |
2023-09-05 4:16 pm |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
34,858 | $14.19 | $494,569 | 0 (Direct) |
View |
2023-08-30 Sale |
2023-09-01 4:12 pm |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
115,142 | $14.18 | $1,632,884 | 34,858 (Direct) |
View |
2023-08-21 Sale |
2023-08-23 4:04 pm |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
27,771 | $15.19 | $421,878 | 0 (Direct) |
View |
2023-08-17 Sale |
2023-08-21 5:11 pm |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
122,229 | $15.13 | $1,849,112 | 27,771 (Direct) |
View |
2023-06-08 Sale |
2023-06-12 6:49 pm |
NET Power Inc. | NPWR | Derham Kyle Director 10% Owner |
9,537,500 | $0 | $0 | 35,007,400 (Indirect Direct) |
View |
2023-06-08 Sale |
2023-06-12 6:49 pm |
NET Power Inc. | NPWR | Rice Daniel J. IV Chief Executive Officer 10% Owner |
9,537,500 | $0 | $0 | 34,504,900 (Indirect) |
View |
2023-06-08 Sale |
2023-06-12 6:48 pm |
NET Power Inc. | NPWR | Rice Acquisition Sponsor II LLC Director 10% Owner |
9,537,500 | $0 | $0 | 34,504,900 (Direct) |
View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date |
Reported DateTime |
Exercisable Expiration |
Company | Symnbol | Insider Relationship |
Shares Traded |
Conversion Price |
Shares Owned |
Filing |
2023-09-01 Option Award |
2023-09-05 4:20 pm |
N/A N/A |
NET Power Inc. | NPWR | Veltmann Alejandra Director |
21,444 | $0 | 21,444 (Direct) |
View |
2023-09-01 Option Award |
2023-09-05 4:20 pm |
N/A N/A |
NET Power Inc. | NPWR | Alexander Ralph Director |
21,444 | $0 | 21,444 (Direct) |
View |
2023-09-01 Option Award |
2023-09-05 4:17 pm |
N/A N/A |
NET Power Inc. | NPWR | PETERSON CAROL R. Director |
21,444 | $0 | 21,444 (Direct) |
View |
2023-09-01 Option Award |
2023-09-05 4:15 pm |
N/A N/A |
NET Power Inc. | NPWR | Kelliher Joseph T Director |
21,444 | $0 | 21,444 (Direct) |
View |
2023-08-29 Conversion |
2023-08-31 4:31 pm |
N/A N/A |
NET Power Inc. | NPWR | MAHON JAMES General Counsel and Secretary |
100,000 | $0 | 1,286,056 (Direct) |
View |
2023-08-29 Other |
2023-08-31 4:31 pm |
N/A N/A |
NET Power Inc. | NPWR | MAHON JAMES General Counsel and Secretary |
100,000 | $0 | 1,286,056 (Direct) |
View |
2023-08-28 Conversion |
2023-08-30 4:03 pm |
N/A N/A |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
150,000 | $0 | 579,118 (Direct) |
View |
2023-08-28 Other |
2023-08-30 4:03 pm |
N/A N/A |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
150,000 | $0 | 579,118 (Direct) |
View |
2023-08-16 Conversion |
2023-08-18 4:30 pm |
N/A N/A |
NET Power Inc. | NPWR | Derham Kyle Director |
3,353,336 | $0 | 1,676,668 (Direct) |
View |
2023-08-09 Conversion |
2023-08-11 4:30 pm |
N/A N/A |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
150,000 | $0 | 664,559 (Direct) |
View |
2023-08-09 Other |
2023-08-11 4:30 pm |
N/A N/A |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
150,000 | $0 | 664,559 (Direct) |
View |
2023-06-30 Other |
2023-06-30 5:23 pm |
N/A N/A |
NET Power Inc. | NPWR | Derham Kyle Director |
4,101,303 | $0 | 12,245,921 (Direct) |
View |
2023-06-30 Other |
2023-06-30 5:22 pm |
N/A N/A |
NET Power Inc. | NPWR | Rice Acquisition Sponsor II LLC Former Director and 10% owner Director |
25,972,500 | $0 | 7,537,500 (Direct) |
View |
Ownership |
2023-06-20 7:30 pm |
N/A N/A |
NET Power Inc. | NPWR | NPEH LLC 10% Owner |
0 | $0 | 60,010,600 (Direct) |
View |
Ownership |
2023-06-20 7:30 pm |
N/A N/A |
NET Power Inc. | NPWR | 8 Rivers Capital LLC SK INC. 10% Owner |
0 | $0 | 65,510,600 (Direct) |
View |
Ownership |
2023-06-20 6:41 pm |
N/A N/A |
NET Power Inc. | NPWR | OCCIDENTAL PETROLEUM CORP OXY USA INC Oxy Low Carbon Ventures LLC OLCV Net Power LLC Director 10% Owner |
0 | $0 | 145,106,489 (Indirect) |
View |
Ownership |
2023-06-20 4:48 pm |
N/A N/A |
NET Power Inc. | NPWR | CONSTELLATION ENERGY GENERATION LLC Constellation Energy Corp 10% Owner |
0 | $0 | 36,530,716 (Direct) |
View |
2023-06-08 Option Award |
2023-06-12 8:26 pm |
N/A N/A |
NET Power Inc. | NPWR | FORREST BROCK Chief Technology Officer |
596,917 | $0 | 1,193,834 (Indirect) |
View |
2023-06-08 Option Award |
2023-06-12 7:43 pm |
N/A N/A |
NET Power Inc. | NPWR | MAHON JAMES General Counsel |
693,028 | $0 | 1,386,056 (Direct) |
View |
2023-06-08 Option Award |
2023-06-12 7:42 pm |
N/A N/A |
NET Power Inc. | NPWR | HEFFINGER BRANDON Chief Commercial Officer |
514,559 | $0 | 1,029,118 (Direct) |
View |
2023-06-08 Option Award |
2023-06-12 7:41 pm |
N/A N/A |
NET Power Inc. | NPWR | ALLEN BRIAN F. President and COO |
568,090 | $0 | 1,136,180 (Direct) |
View |
2023-06-08 Option Award |
2023-06-12 6:51 pm |
N/A N/A |
NET Power Inc. | NPWR | PATEL AKASH S. Chief Financial Officer |
790,448 | $0 | 1,580,896 (Direct) |
View |
2023-06-08 Option Award |
2023-06-12 6:49 pm |
N/A N/A |
NET Power Inc. | NPWR | Derham Kyle Director 10% Owner |
500,000 | $10 | 35,007,400 (Direct) |
View |
2023-06-08 Option Award |
2023-06-12 6:49 pm |
N/A N/A |
NET Power Inc. | NPWR | Derham Kyle Director 10% Owner |
27,972,500 | $0 | 35,007,400 (Indirect) |
View |
2023-06-08 Option Award |
2023-06-12 6:49 pm |
N/A N/A |
NET Power Inc. | NPWR | Rice Daniel J. IV Chief Executive Officer 10% Owner |
27,972,500 | $0 | 34,504,900 (Indirect) |
View |
2023-06-08 Option Award |
2023-06-12 6:48 pm |
N/A N/A |
NET Power Inc. | NPWR | Rice Acquisition Sponsor II LLC Director 10% Owner |
27,972,500 | $0 | 34,504,900 (Direct) |
View |