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8 Rivers Capital, LLC

Disclosed activity across 1 company

Tapewire entity
18959
SEC CIK
0001981100

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Net Power Inc.NPWR · Entity 650010% ownerSeptember 08, 2026September 10, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Net Power Inc.

Report date September 08, 2026 · Filed September 10, 2026

Jointly reported with BEAUCHAMP DAMIAN R.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Class A Common StockSEC Table I · non-derivativeIndirectBy: NPEH, LLC750,000 Last balance in matching sequence After 2026-09-09 transaction · row 2 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2026-09-08 · Sale · Disposed 100,000 · Balance 900,000

F1: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $1.87 to $2.00. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3: As manager and holder of approximately 90.9% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4: Damian R. Beauchamp ("Mr. Beauchamp") independently indirectly owns approximately 63.70% of 8 Rivers, and Mr. Beauchamp directly owns approximately 3.83% of 8 Rivers. Accordingly, Mr. Beauchamp may be deemed the indirect beneficial owner of the securities owned by NPEH to the extent of his pecuniary interest therein. Mr. Beauchamp disclaims beneficial ownership of any such securities, except to the extent of his or her pecuniary interest therein, if any, and this report shall not be deemed an admission that Mr. Beauchamp is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Row 2 · 2026-09-09 · Sale · Disposed 150,000 · Balance 750,000

F2: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $1.77 to $1.885. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3: As manager and holder of approximately 90.9% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4: Damian R. Beauchamp ("Mr. Beauchamp") independently indirectly owns approximately 63.70% of 8 Rivers, and Mr. Beauchamp directly owns approximately 3.83% of 8 Rivers. Accordingly, Mr. Beauchamp may be deemed the indirect beneficial owner of the securities owned by NPEH to the extent of his pecuniary interest therein. Mr. Beauchamp disclaims beneficial ownership of any such securities, except to the extent of his or her pecuniary interest therein, if any, and this report shall not be deemed an admission that Mr. Beauchamp is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Filing footnotes · ownership attribution and instrument terms

F1: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $1.87 to $2.00. NPEH, LLC ("NPEH"), will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F2: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $1.77 to $1.885. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3: As manager and holder of approximately 90.9% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4: Damian R. Beauchamp ("Mr. Beauchamp") independently indirectly owns approximately 63.70% of 8 Rivers, and Mr. Beauchamp directly owns approximately 3.83% of 8 Rivers. Accordingly, Mr. Beauchamp may be deemed the indirect beneficial owner of the securities owned by NPEH to the extent of his pecuniary interest therein. Mr. Beauchamp disclaims beneficial ownership of any such securities, except to the extent of his or her pecuniary interest therein, if any, and this report shall not be deemed an admission that Mr. Beauchamp is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
September 19, 2024 Filed Sep 19, 2024 23:15 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 342,364 $7.06 $2,415,994.28
Disclosure

SEC source: 0001104659-24-101442 · tm2424426-2_4seq1.xml · nonDerivative · entry 3

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 0

F3 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.11. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F5 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F6 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 18, 2024 Filed Sep 19, 2024 23:15 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 80,122 $7.02 $562,544.57
Disclosure

SEC source: 0001104659-24-101442 · tm2424426-2_4seq1.xml · nonDerivative · entry 2

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 342,364

F2 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.06. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F5 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F6 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 17, 2024 Filed Sep 19, 2024 23:15 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 144,959 $7.04 $1,020,395.39
Disclosure

SEC source: 0001104659-24-101442 · tm2424426-2_4seq1.xml · nonDerivative · entry 1

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 422,486

F1 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.115. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F5 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F6 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 16, 2024 Filed Sep 17, 2024 01:57 UTC Net Power Inc. NPWR · Entity 6500 ConversionClass A Units of Net Power Operations LLC · Derivative 500,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-100354 · tm2424151-2_4seq1.xml · derivative · entry 6

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 29,005,300

Underlying: Class A Common Stock · 500,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, NPEH exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F6 · derivative.exercise_date: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, NPEH exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F6 · derivative.expiration_date: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, NPEH exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F4 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F5 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 16, 2024 Filed Sep 17, 2024 01:57 UTC Net Power Inc. NPWR · Entity 6500 OtherClass B Common Stock 500,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-100354 · tm2424151-2_4seq1.xml · nonDerivative · entry 5

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 29,005,300

F7 · price: For each Class A Unit of Net Power Operations LLC, NPEH owns a corresponding share of Class B Common Stock of the Issuer. Upon the exchange of 500,000 Class A Units of Net Power Operations LLC, an equal number of shares of Class B Common Stock of the Issuer held by NPEH, which have no economic value, were cancelled.

F4 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F5 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 16, 2024 Filed Sep 17, 2024 01:57 UTC Net Power Inc. NPWR · Entity 6500 ConversionClass A Common Stock 500,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-100354 · tm2424151-2_4seq1.xml · nonDerivative · entry 4

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 567,445

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · price: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 16, 2024, NPEH exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F4 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F5 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 16, 2024 Filed Sep 17, 2024 01:57 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 36,752 $7.05 $259,123.65
Disclosure

SEC source: 0001104659-24-100354 · tm2424151-2_4seq1.xml · nonDerivative · entry 3

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 67,445

F3 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.00 to $7.11. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F4 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F5 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 13, 2024 Filed Sep 17, 2024 01:57 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 1,340 $7.26 $9,727.86
Disclosure

SEC source: 0001104659-24-100354 · tm2424151-2_4seq1.xml · nonDerivative · entry 2

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 104,197

F2 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.25 to $7.30. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F4 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F5 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 12, 2024 Filed Sep 17, 2024 01:57 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 2,315 $7.26 $16,815.00
Disclosure

SEC source: 0001104659-24-100354 · tm2424151-2_4seq1.xml · nonDerivative · entry 1

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 105,537

F1 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.25 to $7.29. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F4 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F5 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 11, 2024 Filed Sep 12, 2024 00:07 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 21,155 $7.28 $154,101.48
Disclosure

SEC source: 0001104659-24-099026 · tm2423838-1_4seq1.xml · nonDerivative · entry 3

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 107,852

F2 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.25 to $7.32. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 10, 2024 Filed Sep 12, 2024 00:07 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 300 $7.31 $2,193.00
Disclosure

SEC source: 0001104659-24-099026 · tm2423838-1_4seq1.xml · nonDerivative · entry 2

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 129,007

F3 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

Read SEC document
September 09, 2024 Filed Sep 12, 2024 00:07 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 60,022 $7.60 $456,437.30
Disclosure

SEC source: 0001104659-24-099026 · tm2423838-1_4seq1.xml · nonDerivative · entry 1

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 129,307

F1 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.400 to $7.905. NPEH, LLC ("NPEH") will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F3 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

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September 06, 2024 Filed Sep 7, 2024 01:28 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 66,825 $7.88 $526,788.16
Disclosure

SEC source: 0001104659-24-097889 · tm2423525-1_4seq1.xml · nonDerivative · entry 5

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 189,329

F5 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.77 to $7.96. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F6 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F7 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

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September 05, 2024 Filed Sep 7, 2024 01:28 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 160,521 $7.94 $1,274,007.02
Disclosure

SEC source: 0001104659-24-097889 · tm2423525-1_4seq1.xml · nonDerivative · entry 4

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 256,154

F4 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.86 to $8.05. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F6 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F7 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

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September 04, 2024 Filed Sep 7, 2024 01:28 UTC Net Power Inc. NPWR · Entity 6500 SaleClass A Common Stock 83,325 $8.10 $675,290.80
Disclosure

SEC source: 0001104659-24-097889 · tm2423525-1_4seq1.xml · nonDerivative · entry 3

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 416,675

F3 · price: The price reported reflects the weighted average sales price. The shares of Class A Common Stock were sold in multiple trades at prices ranging from $7.97 to $8.20. NPEH will provide upon request to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.

F6 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F7 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

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September 03, 2024 Filed Sep 7, 2024 01:28 UTC Net Power Inc. NPWR · Entity 6500 ConversionClass A Units of NET Power Operations LLC · Derivative 500,000 $0.00 $0.00
Disclosure

SEC source: 0001104659-24-097889 · tm2423525-1_4seq1.xml · derivative · entry 6

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 29,505,300

Underlying: Class A Common Stock · 500,000 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 3, 2024, NPEH, LLC ("NPEH") exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F1 · derivative.exercise_date: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 3, 2024, NPEH, LLC ("NPEH") exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F1 · derivative.expiration_date: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 3, 2024, NPEH, LLC ("NPEH") exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F6 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F7 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

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September 03, 2024 Filed Sep 7, 2024 01:28 UTC Net Power Inc. NPWR · Entity 6500 OtherClass B Common Stock 500,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-097889 · tm2423525-1_4seq1.xml · nonDerivative · entry 2

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 29,505,300

F2 · price: For each Class A Unit of Net Power Operations LLC, NPEH owns a corresponding share of Class B Common Stock of the Issuer. Upon the exchange of 500,000 Class A Units of Net Power Operations LLC, an equal number of shares of Class B Common Stock of the Issuer held by NPEH, which have no economic value, were cancelled.

F6 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F7 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

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September 03, 2024 Filed Sep 7, 2024 01:28 UTC Net Power Inc. NPWR · Entity 6500 ConversionClass A Common Stock 500,000 Not disclosed Not disclosed
Disclosure

SEC source: 0001104659-24-097889 · tm2423525-1_4seq1.xml · nonDerivative · entry 1

8 Rivers Capital, LLC · CIK 0001981100 · 10% owner

SK INC. · CIK 0001947998 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: NPEH, LLC

Disclosed balance after: 500,000

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The Class A Units of NET Power Operations LLC are exchangeable into shares of the Issuer's Class A Common Stock or, at the Issuer's election, cash, on a one-for-one basis and have no expiration date. On September 3, 2024, NPEH, LLC ("NPEH") exchanged 500,000 Class A Units of NET Power Operations LLC for 500,000 shares of the Issuer's Class A Common Stock.

F6 · ownership.nature: As manager and holder of approximately 91.4% of the outstanding equity in NPEH, 8 Rivers Capital, LLC ("8 Rivers") may be deemed to be a beneficial owner of the securities directly owned by NPEH. 8 Rivers disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that 8 Rivers is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F7 · ownership.nature: SK Inc. ("SK") indirectly beneficially owns 100.0% of each of Tillandsia, Inc. ("Tillandsia"), Areca, Inc. ("Areca") and Chamaedorea, Inc. ("Chamaedorea"). Each of Tillandsia, Areca and Chamaedorea beneficially owns approximately 18.06%, 25.02% and 23.41%, respectively, of the voting units of 8 Rivers and thus SK may be deemed to be a beneficial owner of the securities beneficially owned by 8 Rivers and NPEH. SK disclaims beneficial ownership of any such securities, except to the extent of its pecuniary interest therein, if any, and this report shall not be deemed an admission that SK is the beneficial owner of such securities for purposes of Section 16 or otherwise.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.