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Net Power Inc.

NPWR
Exchange
NYSE
Industry
Electrical Industrial Apparatus
SEC CIK
0001845437

In the last 90 days, Net Power Inc. insiders filed 0 open-market purchases and 7 sales; 120 institutions reported holding it in 13F filings for Q2 2026, worth $64.1M in total; no superinvestor holds it.

Other share classesNPWR.WT

13F holders, Q2 2026

Institutional positions in Net Power Inc. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
120
+9 vs. Q1 2026
Shares held
38.4M
+3.21M (+9.1%) vs. Q1 2026
Total value
$64.1M
+$9.10M (+16.6%) vs. Q1 2026
New holders
19
48 more added
Sold out
10
30 more reduced

2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting NPWR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 120 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 42 institutionsQ3 2023: 58 institutionsQ4 2023: 70 institutionsQ1 2024: 77 institutionsQ2 2024: 93 institutionsQ3 2024: 89 institutionsQ4 2024: 113 institutionsQ1 2025: 108 institutionsQ2 2025: 94 institutionsQ3 2025: 100 institutionsQ4 2025: 114 institutionsQ1 2026: 113 institutionsQ2 2026: 120 institutions
Value heldQ2 2026: $64.1M
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $238.5MQ3 2023: $486.7MQ4 2023: $337.7MQ1 2024: $307.6MQ2 2024: $292.4MQ3 2024: $215.2MQ4 2024: $335.8MQ1 2025: $81.4MQ2 2025: $74.6MQ3 2025: $97.7MQ4 2025: $76.1MQ1 2026: $55.0MQ2 2026: $64.1M
Institutions holding NPWR and their total value by quarter
QuarterHoldersValue
Q2 2026120$64.1M
Q1 2026113$55.0M
Q4 2025114$76.1M
Q3 2025100$97.7M
Q2 202594$74.6M
Q1 2025108$81.4M
Q4 2024113$335.8M
Q3 202489$215.2M
Q2 202493$292.4M
Q1 202477$307.6M
Q4 202370$337.7M
Q3 202358$486.7M
Q2 202342$238.5M
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding Net Power Inc.; share changes are against Q1 2026.

Institutions holding NPWR in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Optiver Holding B.V.4$70.00%−296−98.7%Reduced
SBI Securities Co., Ltd.5$80.00%00.0%Unchanged
JPL Wealth Management, LLC5$90.00%+5New
Caitong International Asset Management Co., Ltd10$170.00%−710−98.6%Reduced
Clearstead Advisors, LLC26$440.00%−163−86.2%Reduced
True Wealth Design, LLC50$840.00%+38+316.7%Added
SJS Investment Consulting Inc.57$960.00%+46+418.2%Added
IFP Advisors, Inc106$1770.00%−9−7.8%Reduced
Nisa Investment Advisors, LLC229$3820.00%−202−46.9%Reduced
Farther Finance Advisors, LLC275$4590.00%+99+56.3%Added
Rialto Wealth Management, LLC299$5000.00%+62+26.2%Added
Fortitude Family Office, LLC545$9100.00%+247+82.9%Added
California State Teachers Retirement System549$9170.00%−1,749−76.1%Reduced
Rothschild Investment LLC550$9190.00%+404+276.7%Added
Capital Analysts, LLC522$1.00K0.00%00.0%Unchanged
Essential Partners LLC711$1.19K0.00%−2,047−74.2%Reduced
Sterling Capital Management LLC733$1.22K0.00%−566−43.6%Reduced
McMillan Office, Inc.1,000$1.67K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.1,390$2.32K0.00%00.0%Unchanged
Allworth Financial LP1,545$2.58K0.00%+1,220+375.4%Added
EverSource Wealth Advisors, LLC1,692$2.83K0.00%+764+82.3%Added
Jones Financial Companies LLLP1,800$2.95K0.00%−1,277−41.5%Reduced
FMR LLC1,951$3.26K0.00%−91−4.5%Reduced
Ameritas Investment Partners, Inc.2,072$3.46K0.00%00.0%Unchanged
Quarry LP2,257$3.77K0.00%+2,257New
Legal & General Group Plc3,095$5.17K0.00%00.0%Unchanged
Police & Firemen's Retirement System of New Jersey4,252$7.10K0.00%00.0%Unchanged
Fifth Third Bancorp5,000$8.35K0.00%00.0%Unchanged
New York State Common Retirement Fund5,100$8.52K0.00%00.0%Unchanged
NBC Securities, Inc.6,340$10.6K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)7,332$12.2K0.00%−3,301−31.0%Reduced
SRS Capital Advisors, Inc.8,943$14.9K0.00%+8,822+7,290.9%Added
Barclays PLC8,948$14.9K0.00%+109+1.2%Added
Truist Financial Corp10,000$16.7K0.00%00.0%Unchanged
Intech Investment Management LLC10,786$18.0K0.00%00.0%Unchanged
Colony Group, LLC10,863$18.1K0.00%+10,863New
Cambridge Investment Research Advisors, Inc.11,339$19.0K0.00%+11,339New
Aigen Investment Management, LP11,812$19.7K0.01%+11,812New
Vanguard Global Advisers, LLC12,172$20.3K0.00%00.0%Unchanged
Private Advisor Group, LLC12,200$20.4K0.00%00.0%Unchanged
Creative Planning12,217$20.4K0.00%+12,217New
Royal Bank of Canada12,831$21.0K0.00%+8,363+187.2%Added
Wealth Enhancement Advisory Services, LLC13,528$21.1K0.00%+13,528New
SEI Investments Co12,854$21.5K0.00%00.0%Unchanged
Point72 Asset Management, L.P.15,340$25.6K0.00%−18,751−55.0%Reduced
Mercer Global Advisors Inc16,047$26.8K0.00%+16,047New
Ieq Capital, LLC16,207$27.1K0.00%+16,207New
Engineers Gate Manager LP16,261$27.2K0.00%−14,689−47.5%Reduced
Legacy Advisors, LLC16,413$27.4K0.00%+20+0.1%Added
Price T Rowe Associates Inc17,028$29.0K0.00%00.0%Unchanged
Kapstone Financial Advisors LLC17,395$29.1K0.01%00.0%Unchanged
Integrity Alliance, LLC.17,400$29.1K0.00%00.0%Unchanged
JPMorgan Chase & Co18,211$30.4K0.00%+1,309+7.7%Added
Mariner, LLC18,552$31.0K0.00%+18,552New
Group One Trading, L.P.18,672$31.2K0.00%+3,905+26.4%Added
Polymer Capital Management (US) LLC18,731$31.3K0.00%−32,195−63.2%Reduced
Mirae Asset Global ETFs Holdings Ltd.19,454$32.5K0.00%+4,335+28.7%Added
Citigroup Inc19,652$32.8K0.00%+18,066+1,139.1%Added
Captrust Financial Advisors19,846$33.1K0.00%+5,428+37.6%Added
Invesco Ltd.22,043$36.8K0.00%+10,759+95.3%Added
Two Sigma Securities, LLC22,060$36.8K0.00%+22,060New
Virtu Financial LLC26,027$43.0K0.00%+26,027New
Bank of America Corp26,930$45.0K0.00%−8,153−23.2%Reduced
Quadrature Capital Ltd26,934$45.0K0.00%+26,934New
LMR Partners LLP28,794$48.1K0.00%−7,078−19.7%Reduced
Canada Pension Plan Investment Board29,700$49.6K0.00%+29,700New
Sig Brokerage, LP31,942$53.3K0.01%00.0%Unchanged
Russell Investments Group, Ltd.33,503$55.9K0.00%+30,691+1,091.4%Added
Jain Global LLC34,819$58.1K0.00%+34,819New
Wells Fargo & Company35,383$59.1K0.00%+6,568+22.8%Added
Millennium Management LLC37,844$63.2K0.00%−644,861−94.5%Reduced
Advisor Group Holdings, Inc.40,785$68.1K0.00%−200−0.5%Reduced
IMC-Chicago, LLC41,449$69.2K0.00%+41,449New
Rhumbline Advisers53,919$90.0K0.00%+4,805+9.8%Added
Qube Research & Technologies Ltd55,825$93.2K0.00%+19,248+52.6%Added
Deutsche Bank AG56,064$93.6K0.00%+1,887+3.5%Added
LPL Financial LLC57,074$95.3K0.00%+4,049+7.6%Added
HRT Financial LP60,620$101.0K0.00%+60,620New
XTX Topco Ltd73,944$123.5K0.00%+61,854+511.6%Added
Simplex Trading, LLC77,604$129.6K0.00%+77,604New
Bank of New York Mellon Corp83,821$140.0K0.00%−225−0.3%Reduced
Moore Capital Management, LP85,000$141.9K0.00%00.0%Unchanged
Los Angeles Capital Management LLC96,430$161.0K0.00%+96,430New
SIR Capital Management, L.P.109,651$183.1K0.02%+6,473+6.3%Added
Alliancebernstein L.P.117,680$183.6K0.00%+16,000+15.7%Added
Caption Management, LLC122,452$204.5K0.01%+102,574+516.0%Added
Janney Montgomery Scott LLC133,000$222.0K0.00%00.0%Unchanged
Susquehanna Fundamental Investments, LLC141,882$236.9K0.00%−42,201−22.9%Reduced
Goldman Sachs Group Inc151,365$252.8K0.00%−109,200−41.9%Reduced
Dimensional Fund Advisors LP163,443$272.9K0.00%+60,322+58.5%Added
Shelton Capital Management200,300$334.5K0.01%00.0%Unchanged
Federated Hermes, Inc.248,208$414.5K0.00%+6,616+2.7%Added
Susquehanna International Group, LLP261,027$435.9K0.00%+89,603+52.3%Added
Boothbay Fund Management, LLC263,298$439.7K0.01%−32,653−11.0%Reduced
Morgan Stanley270,736$452.1K0.00%+86,941+47.3%Added
Vanguard Fiduciary Trust Co282,441$471.7K0.00%+33,418+13.4%Added
Charles Schwab Investment Management Inc288,276$481.4K0.00%+18,758+7.0%Added
Nuveen, LLC288,876$482.4K0.00%−424,884−59.5%Reduced
Vanguard Portfolio Management LLC324,611$542.1K0.00%+59,912+22.6%Added
Northern Trust Corp334,814$559.1K0.00%+42,790+14.7%Added