Stock Ownership/NPWR

NET POWER INC (NPWR): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in NPWR · Industrials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
11
13F filers
Aggregate Value
$39.0M
Across holders
Last Price
$1.99
2026-08-24
Sector
Industrials
GICS
Quarterly fund activity5 increased5 reduced2 exited
Full exits: CITADEL ADVISORS LLC, Squarepoint Ops LLC
Institutional Holders of NPWR
↗
11 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
GREENLIGHT CAPITAL INC
CIK 0001079114
Hedge Fund2.99M$30.2M77.5%1.5%Added+$16.4MQ4 2023
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund2.84M$4.7M12.2%0.0%Added+$2.2MQ2 2026
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
Hedge Fund661K$1.1M2.8%0.0%Reduced$-701KQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund413K$689K1.8%0.0%Added$-97KQ2 2026
TUDOR INVESTMENT CORP ET AL
CIK 0000923093
Hedge Fund398K$664K1.7%0.0%Reduced$-56KQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund385K$643K1.7%0.0%Added+$643KQ2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund354K$592K1.5%0.0%Reduced$-584KQ2 2026
MOORE CAPITAL MANAGEMENT, LP
CIK 0001448574
Hedge Fund85K$142K0.4%0.0%Unchanged+$0Q2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund56K$93K0.2%0.0%Added+$32KQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund38K$63K0.2%0.0%Reduced$-1.1MQ2 2026
GREENLIGHT CAPITAL INCAdded
Hedge Fund
$30.2M· 77.5% of total· 1.5% port· 2.99M sh· +$16.4M QoQ· Q4 2023
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$4.7M· 12.2% of total· 0.0% port· 2.84M sh· +$2.2M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPReduced
Hedge Fund
$1.1M· 2.8% of total· 0.0% port· 661K sh· $-701K QoQ· Q2 2026
SHAW D E & CO INCAdded
Hedge Fund
$689K· 1.8% of total· 0.0% port· 413K sh· $-97K QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALReduced
Hedge Fund
$664K· 1.7% of total· 0.0% port· 398K sh· $-56K QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$643K· 1.7% of total· 0.0% port· 385K sh· +$643K QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$592K· 1.5% of total· 0.0% port· 354K sh· $-584K QoQ· Q2 2026
MOORE CAPITAL MANAGEMENT, LPUnchanged
Hedge Fund
$142K· 0.4% of total· 0.0% port· 85K sh· +$0 QoQ· Q2 2026
Qube Research & Technologies LtdAdded
Hedge Fund
$93K· 0.2% of total· 0.0% port· 56K sh· +$32K QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$63K· 0.2% of total· 0.0% port· 38K sh· $-1.1M QoQ· Q2 2026
Point72 Asset Management, L.P.Reduced
Hedge Fund
$26K· 0.1% of total· 0.0% port· 15K sh· $-31K QoQ· Q2 2026
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