Latest filingAug 27, 2026Most recent Form 4
NPWR
Net Power Inc.
NYSEIndustrialsElectrical Industrial Apparatus
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$92.6M4 sells
Net open-market-$92.6M3 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period4transactions
- S · Open-market sells · dominant4 · 100%
Activity by reported role
A joint filing can contribute to multiple roles4transactions
- 10% owner · dominant4 · 100%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeBeauchamp Damian R.Class A Common Stock · Indirect · By: NPEH, LLC
1,000,000Aug 26, 2026
8 Rivers Capital, LlcClass A Common Stock · Indirect · By: NPEH, LLC
1,000,000Aug 26, 2026
Npeh, LlcClass A Common Stock · Direct
1,000,000Aug 26, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- NL-$463.3k
- 8L-$463.3k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
NPWR transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| NPWR | NPEH, LLC | 10% | sale | 41.3k | -$7.90M | S | — | 08/27 | 08/26 | |
| NPWR | NPEH, LLC | 10% | sale | 201k | -$38.4M | S | — | 08/27 | 08/25 | |
| NPWR | 8 Rivers Capital, LLC | 10% | sale | 41.3k | -$7.90M | S | — | 08/27 | 08/26 | |
| NPWR | 8 Rivers Capital, LLC | 10% | sale | 201k | -$38.4M | S | — | 08/27 | 08/25 |
Net Power Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Net Power Inc.?
NPEH, LLC, 8 Rivers Capital, LLC, BEAUCHAMP DAMIAN R..
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Npeh, Llc reported a sale on Aug 26, 2026 valued at $7.90M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $926,665.64. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.