What does CUSIP 64107A105 represent in this 13F holders report?

CUSIP 64107A105 is the security identifier for NPWR - Net Power Inc. - Class A Common Stock, par value $0.0001 used to aggregate holder disclosures.

How many institutions held NPWR - Net Power Inc. - Class A Common Stock, par value $0.0001 in Q1 2025?

105 institutional investors reported NPWR - Net Power Inc. - Class A Common Stock, par value $0.0001 for Q1 2025. Use the holders table for investor-level position and value details.

Net Power Inc. - Class A Common Stock, par value $0.0001 (NPWR)

CUSIP: 64107A105

Q1 2025 13F Holders as of 31 Mar 2025

Security type / class: Equity / Class A Common Stock, par value $0.0001
Total 13F shares: 30,912,137
Total 13F value: $81,298,302
Share change: -801,437
Put/Call ratio: 21%
SEC-reported price per share: $2.63
Number of holders: 105
Value change: -$45,619,453
Number of buys: 61
Number of sells: 54
Shares outstanding: 106,230,571

Security key

64107A105

Report period

Q1 2025

Institutions

105

Top holders

NPWR full security history Ownership snapshot Full 13F holder table Net Power Inc. SEC filings Net Power Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of NPWR - Net Power Inc. - Class A Common Stock, par value $0.0001 (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Andrew L. Share

Disclosed value leader

Andrew L. Share

Comparable rows

15/15

Latest evidence

31 Dec 2024

13F Lead comparable stake: 9.4% Showing 1-6 of 15 holder rows.

Quick read

Andrew L. Share leads the comparable SEC ownership view at 9.4%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Andrew L. Share's linked filing trail.

Comparable ownership Top 5

Andrew L. Share 9.4%

VANGUARD GROUP INC 2.7%

Encompass Capital Advisors LLC 2.4%

KENSICO CAPITAL MANAGEMENT CORP 1.6%

BlackRock, Inc. 1.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Andrew L. Share	13F Individual 13F	9.4%	$105,238,125 9,937,500 shares	—	31 Dec 2024
VANGUARD GROUP INC	13F Company 13F	2.7%	$30,344,607 2,865,402 shares	—	31 Dec 2024
Encompass Capital Advisors LLC	13F Company 13F	2.4%	$26,447,604 2,497,413 shares	—	31 Dec 2024
KENSICO CAPITAL MANAGEMENT CORP	13F Company 13F	1.6%	$18,463,665 1,743,500 shares	—	31 Dec 2024
BlackRock, Inc.	13F Company 13F	1.5%	$16,674,803 1,574,580 shares	—	31 Dec 2024
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC	13F Company 13F	1.4%	$15,355,500 1,450,000 shares	—	31 Dec 2024

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

105

30,912,137

Rows available

105

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2025 vs Q1 2025 Across Filers

Q1 2025 holders

105

Q1 2025 holders

105

Holder diff

Investor	Q1 2025 Shares	Q1 2025 Shares	Share Diff	Share Chg %	Q1 2025 value	Q1 2025 value	Value change	Value Chg %