Follow the people · Insider
8 Rivers Capital, LLC
8 Rivers Capital, LLC files insider transactions with the SEC as a 10% owner of Net Power (NPWR). We hold 37 disclosed purchases and sales filed since 6 September 2024, 17 of them in the last 90 days.
- Files forNPWR
- Disclosed buys and sells37 in all, 17 in the last 90 days
- Last disclosure27 August 2026
Positions held
1 post we hold — a term names its own dates; a run of filings only says when they filed- Filed 3 September 2024 — 26 August 202610% owner · Net Power (NPWR)78 Form 4 lines · source: SEC Form 4
Everything they disclosed
78 entries, newest first — one per disclosure report, one per Form 4 line- ▼ sold on the open market 201,550 shares of Net PowerSEC Form 427 August 2026Class A Common Stock · traded 25 August 2026 · filed 27 August 2026
- ▼ sold on the open market 41,350 shares of Net PowerSEC Form 427 August 2026Class A Common Stock · traded 26 August 2026 · filed 27 August 2026
- ▼ sold on the open market 50,000 shares of Net PowerSEC Form 414 August 2026Class A Common Stock · traded 12 August 2026 · filed 14 August 2026
- ▼ sold on the open market 200,000 shares of Net PowerSEC Form 414 August 2026Class A Common Stock · traded 13 August 2026 · filed 14 August 2026
- ▼ sold on the open market 507,100 shares of Net PowerSEC Form 414 August 2026Class A Common Stock · traded 14 August 2026 · filed 14 August 2026
- ▼ sold on the open market 60,345 shares of Net PowerSEC Form 411 August 2026Class A Common Stock · traded 7 August 2026 · filed 11 August 2026
- ▼ sold on the open market 55,400 shares of Net PowerSEC Form 411 August 2026Class A Common Stock · traded 10 August 2026 · filed 11 August 2026
- ▼ sold on the open market 35,000 shares of Net PowerSEC Form 411 August 2026Class A Common Stock · traded 11 August 2026 · filed 11 August 2026
- ▼ sold on the open market 120,000 shares of NET PowerSEC Form 46 August 2026Class A Common Stock · traded 4 August 2026 · filed 6 August 2026
- ▼ sold on the open market 140,000 shares of NET PowerSEC Form 46 August 2026Class A Common Stock · traded 5 August 2026 · filed 6 August 2026
- ▼ sold on the open market 89,255 shares of NET PowerSEC Form 46 August 2026Class A Common Stock · traded 6 August 2026 · filed 6 August 2026
- ▼ sold on the open market 55,858 shares of NET PowerSEC Form 430 July 2026Class A Common Stock · traded 28 July 2026 · filed 30 July 2026
- ▼ sold on the open market 45,000 shares of NET PowerSEC Form 430 July 2026Class A Common Stock · traded 29 July 2026 · filed 30 July 2026
- ▼ sold on the open market 155,000 shares of NET PowerSEC Form 430 July 2026Class A Common Stock · traded 30 July 2026 · filed 30 July 2026
- ▼ sold on the open market 80,000 shares of NET PowerSEC Form 423 July 2026Class A Common Stock · traded 21 July 2026 · filed 23 July 2026
- ▼ sold on the open market 90,000 shares of NET PowerSEC Form 423 July 2026Class A Common Stock · traded 22 July 2026 · filed 23 July 2026
- ▼ sold on the open market 39,142 shares of NET PowerSEC Form 423 July 2026Class A Common Stock · traded 23 July 2026 · filed 23 July 2026
- ▼ sold on the open market 400,000 shares of NET PowerSEC Form 414 May 2026Class A Common Stock · traded 12 May 2026 · filed 14 May 2026
- ▼ sold on the open market 35,000 shares of NET PowerSEC Form 414 May 2026Class A Common Stock · traded 13 May 2026 · filed 14 May 2026
- converted 3,000,000 shares of NET PowerSEC Form 413 May 2026Class A Common Stock · traded 6 March 2026 · filed 13 May 2026
- acquired or disposed of, other 3,000,000 shares of NET PowerSEC Form 413 May 2026Class B Common Stock · traded 6 March 2026 · filed 13 May 2026
- converted 3,000,000 shares of NET Power (a derivative holding)SEC Form 413 May 2026Class A Units of NET Power Operations LLC · traded 6 March 2026 · filed 13 May 2026
- converted 3,000,000 shares of NET PowerSEC Form 410 March 2026Class A Common Stock · traded 6 March 2026 · filed 10 March 2026
- acquired or disposed of, other 3,000,000 shares of NET PowerSEC Form 410 March 2026Class B Common Stock · traded 6 March 2026 · filed 10 March 2026
- converted 3,000,000 shares of NET PowerSEC Form 410 March 2026Class A Common Stock · traded 6 March 2026 · filed 10 March 2026
- acquired or disposed of, other 3,000,000 shares of NET PowerSEC Form 410 March 2026Class B Common Stock · traded 6 March 2026 · filed 10 March 2026
- ▼ sold on the open market 100,000 shares of NET PowerSEC Form 45 March 2026Class A Common Stock · traded 3 March 2026 · filed 5 March 2026
- ▼ sold on the open market 1,881 shares of NET PowerSEC Form 42 March 2026Class A Common Stock · traded 26 February 2026 · filed 2 March 2026
- ▼ sold on the open market 4,744 shares of NET PowerSEC Form 42 March 2026Class A Common Stock · traded 27 February 2026 · filed 2 March 2026
- ▼ sold on the open market 79,858 shares of NET PowerSEC Form 42 March 2026Class A Common Stock · traded 2 March 2026 · filed 2 March 2026
- ▼ sold on the open market 125,000 shares of NET PowerSEC Form 423 February 2026Class A Common Stock · traded 19 February 2026 · filed 23 February 2026
- ▼ sold on the open market 63,517 shares of NET PowerSEC Form 423 February 2026Class A Common Stock · traded 20 February 2026 · filed 23 February 2026
- ▼ sold on the open market 125,000 shares of NET PowerSEC Form 423 February 2026Class A Common Stock · traded 19 February 2026 · filed 23 February 2026
- ▼ sold on the open market 63,517 shares of NET PowerSEC Form 423 February 2026Class A Common Stock · traded 20 February 2026 · filed 23 February 2026
- ▼ sold on the open market 100,000 shares of NET PowerSEC Form 418 February 2026Class A Common Stock · traded 13 February 2026 · filed 18 February 2026
- ▼ sold on the open market 75,000 shares of NET PowerSEC Form 418 February 2026Class A Common Stock · traded 18 February 2026 · filed 18 February 2026
- ▼ sold on the open market 40,000 shares of NET PowerSEC Form 412 February 2026Class A Common Stock · traded 10 February 2026 · filed 12 February 2026
- ▼ sold on the open market 60,000 shares of NET PowerSEC Form 412 February 2026Class A Common Stock · traded 11 February 2026 · filed 12 February 2026
- ▼ sold on the open market 150,000 shares of NET PowerSEC Form 412 February 2026Class A Common Stock · traded 12 February 2026 · filed 12 February 2026
- ▼ sold on the open market 54,780 shares of NET PowerSEC Form 42 February 2026Class A Common Stock · traded 29 January 2026 · filed 2 February 2026
- ▼ sold on the open market 54,780 shares of NET PowerSEC Form 42 February 2026Class A Common Stock · traded 29 January 2026 · filed 2 February 2026
- ▼ sold on the open market 130,000 shares of NET PowerSEC Form 428 January 2026Class A Common Stock · traded 26 January 2026 · filed 28 January 2026
- ▼ sold on the open market 100,000 shares of NET PowerSEC Form 428 January 2026Class A Common Stock · traded 27 January 2026 · filed 28 January 2026
- ▼ sold on the open market 65,220 shares of NET PowerSEC Form 428 January 2026Class A Common Stock · traded 28 January 2026 · filed 28 January 2026
- ▼ sold on the open market 135,000 shares of NET PowerSEC Form 416 January 2026Class A Common Stock · traded 14 January 2026 · filed 16 January 2026
- ▼ sold on the open market 135,000 shares of NET PowerSEC Form 416 January 2026Class A Common Stock · traded 15 January 2026 · filed 16 January 2026
- ▼ sold on the open market 230,000 shares of NET PowerSEC Form 416 January 2026Class A Common Stock · traded 16 January 2026 · filed 16 January 2026
- ▼ sold on the open market 135,000 shares of NET PowerSEC Form 416 January 2026Class A Common Stock · traded 14 January 2026 · filed 16 January 2026
- ▼ sold on the open market 135,000 shares of NET PowerSEC Form 416 January 2026Class A Common Stock · traded 15 January 2026 · filed 16 January 2026
- ▼ sold on the open market 230,000 shares of NET PowerSEC Form 416 January 2026Class A Common Stock · traded 16 January 2026 · filed 16 January 2026
- ▼ sold on the open market 100,000 shares of NET PowerSEC Form 423 December 2025Class A Common Stock · traded 19 December 2025 · filed 23 December 2025
- ▼ sold on the open market 100,000 shares of NET PowerSEC Form 423 December 2025Class A Common Stock · traded 22 December 2025 · filed 23 December 2025
- ▼ sold on the open market 130,000 shares of NET PowerSEC Form 423 December 2025Class A Common Stock · traded 23 December 2025 · filed 23 December 2025
- ▼ sold on the open market 65,000 shares of NET PowerSEC Form 48 December 2025Class A Common Stock · traded 4 December 2025 · filed 8 December 2025
- ▼ sold on the open market 105,000 shares of NET PowerSEC Form 48 December 2025Class A Common Stock · traded 5 December 2025 · filed 8 December 2025
- ▼ sold on the open market 140,000 shares of NET PowerSEC Form 48 December 2025Class A Common Stock · traded 8 December 2025 · filed 8 December 2025
- ▼ sold on the open market 338,653 shares of NET PowerSEC Form 419 November 2025Class A Common Stock · traded 17 November 2025 · filed 19 November 2025
- ▼ sold on the open market 250,000 shares of NET PowerSEC Form 419 November 2025Class A Common Stock · traded 19 November 2025 · filed 19 November 2025
- converted 2,000,000 shares of NET Power (a derivative holding)SEC Form 44 November 2025Class A Units of NET Power Operations LLC · traded 3 November 2025 · filed 4 November 2025
- ▼ sold on the open market 18,116 shares of NET PowerSEC Form 44 November 2025Class A Common Stock · traded 31 October 2025 · filed 4 November 2025
- ▼ sold on the open market 8,477 shares of NET PowerSEC Form 44 November 2025Class A Common Stock · traded 3 November 2025 · filed 4 November 2025
- converted 2,000,000 shares of NET PowerSEC Form 44 November 2025Class A Common Stock · traded 3 November 2025 · filed 4 November 2025
- acquired or disposed of, other 2,000,000 shares of NET PowerSEC Form 44 November 2025Class B Common Stock · traded 3 November 2025 · filed 4 November 2025
- converted 500,000 shares of NET Power (a derivative holding)SEC Form 416 September 2024Class A Units of Net Power Operations LLC · traded 16 September 2024 · filed 16 September 2024
- ▼ sold on the open market 2,315 shares of NET PowerSEC Form 416 September 2024Class A Common Stock · traded 12 September 2024 · filed 16 September 2024
- ▼ sold on the open market 1,340 shares of NET PowerSEC Form 416 September 2024Class A Common Stock · traded 13 September 2024 · filed 16 September 2024
- ▼ sold on the open market 36,752 shares of NET PowerSEC Form 416 September 2024Class A Common Stock · traded 16 September 2024 · filed 16 September 2024
- converted 500,000 shares of NET PowerSEC Form 416 September 2024Class A Common Stock · traded 16 September 2024 · filed 16 September 2024
- acquired or disposed of, other 500,000 shares of NET PowerSEC Form 416 September 2024Class B Common Stock · traded 16 September 2024 · filed 16 September 2024
- ▼ sold on the open market 60,022 shares of NET PowerSEC Form 411 September 2024Class A Common Stock · traded 9 September 2024 · filed 11 September 2024
- ▼ sold on the open market 300 shares of NET PowerSEC Form 411 September 2024Class A Common Stock · traded 10 September 2024 · filed 11 September 2024
- ▼ sold on the open market 21,155 shares of NET PowerSEC Form 411 September 2024Class A Common Stock · traded 11 September 2024 · filed 11 September 2024
- converted 500,000 shares of NET Power (a derivative holding)SEC Form 46 September 2024Class A Units of NET Power Operations LLC · traded 3 September 2024 · filed 6 September 2024
- converted 500,000 shares of NET PowerSEC Form 46 September 2024Class A Common Stock · traded 3 September 2024 · filed 6 September 2024
- acquired or disposed of, other 500,000 shares of NET PowerSEC Form 46 September 2024Class B Common Stock · traded 3 September 2024 · filed 6 September 2024
- ▼ sold on the open market 83,325 shares of NET PowerSEC Form 46 September 2024Class A Common Stock · traded 4 September 2024 · filed 6 September 2024
- ▼ sold on the open market 160,521 shares of NET PowerSEC Form 46 September 2024Class A Common Stock · traded 5 September 2024 · filed 6 September 2024
- ▼ sold on the open market 66,825 shares of NET PowerSEC Form 46 September 2024Class A Common Stock · traded 6 September 2024 · filed 6 September 2024
Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.