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Institutional Ownership · SEC Form 13F

Who owns NPWR


Which tracked institutional funds hold NPWR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NPWR company fundamentals →

Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

135
Institutional holders
47M
Shares held (tracked funds)

How the tape is positioned

12 tracked funds added or opened NPWR while 7 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

NPWR’s largest tracked holder by dollar value, Share Andrew L., sizes it at 8.4% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 8.4pp conviction gap — its largest holder concentrates the name more heavily than the typical one.

Book-share is each fund’s reported value in NPWR divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2026-Q1 and 2026-Q2, across 128 tracked filers holding NPWR, 65 increased or opened the position and 45 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in NPWR between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

Full exits 2

  • COHEN & STEERS, INC.$1M
  • CenterBook Partners LP$683K

Largest adds

  • Share Andrew L.$3M
  • ADAGE CAPITAL PARTNERS GP, L.L.C.$2M
  • Defiance ETFs, LLC$2M
  • Tidal Investments LLC$2M
  • BlackRock, Inc.$692K
  • LMR Partners LLP$487K

Largest trims

  • MILLENNIUM MANAGEMENT LLC$1M
  • Nuveen, LLC$631K
  • TWO SIGMA INVESTMENTS, LP$582K
  • RENAISSANCE TECHNOLOGIES LLC$506K
  • ZAZOVE ASSOCIATES LLC$332K

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
Share Andrew L.9,767,500$16M26.3%2026-Q2
HITE Hedge Asset Management LLC added2,852,670$5M7.7%2026-Q2
ADAGE CAPITAL PARTNERS GP, L.L.C. added2,840,000$5M7.6%2026-Q2
BlackRock, Inc. added2,416,294$4M6.5%2026-Q2
PEAK6 LLC trimmed1,985,754$3M5.3%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC added1,802,372$3M4.8%2026-Q2
LMR Partners LLP added1,705,116$494K0.8%2026-Q2
Defiance ETFs, LLC added1,555,837$3M4.2%2026-Q2
Tidal Investments LLC added1,546,562$3M4.2%2026-Q2
ZAZOVE ASSOCIATES LLC trimmed1,533,692$475K0.8%2026-Q2
Sourcerock Group LLC trimmed1,400,110$2M3.8%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added1,006,014$2M2.7%2026-Q2
Argentarii, LLC trimmed746,799$1M1.9%2026-Q2
TWO SIGMA INVESTMENTS, LP trimmed660,570$1M1.8%2026-Q2
STATE STREET CORP added624,238$1M1.7%2026-Q2
UBS Group AG added610,961$1M1.6%2026-Q2
KENSICO CAPITAL MANAGEMENT CORP trimmed453,800$132K0.2%2026-Q2
D. E. Shaw & Co., Inc. added412,502$689K1.1%2026-Q2
TUDOR INVESTMENT CORP ET AL trimmed397,515$664K1.1%2026-Q2
AQR CAPITAL MANAGEMENT LLC added385,283$643K1.0%2026-Q2
RENAISSANCE TECHNOLOGIES LLC trimmed354,206$592K1.0%2026-Q2
NORTHERN TRUST CORP added334,814$559K0.9%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC added324,611$542K0.9%2026-Q2
Nuveen, LLC trimmed288,876$482K0.8%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added288,276$481K0.8%2026-Q2
VANGUARD FIDUCIARY TRUST CO added282,441$472K0.8%2026-Q2
TORONTO DOMINION BANK added278,099$81K0.1%2026-Q2
MORGAN STANLEY added270,736$452K0.7%2026-Q2
BOOTHBAY FUND MANAGEMENT, LLC trimmed263,298$440K0.7%2026-Q2
SUSQUEHANNA INTERNATIONAL GROUP, LLP added261,027$436K0.7%2026-Q2
FEDERATED HERMES, INC. added248,208$415K0.7%2026-Q2
SHELTON CAPITAL MANAGEMENT200,300$335K0.5%2026-Q2
Saba Capital Management, L.P. new180,984$56K0.1%2026-Q2
WOLVERINE ASSET MANAGEMENT LLC new168,890$49K0.1%2026-Q2
DIMENSIONAL FUND ADVISORS LP added163,443$273K0.4%2026-Q2
GOLDMAN SACHS GROUP INC trimmed151,365$253K0.4%2026-Q2
SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC trimmed141,882$237K0.4%2026-Q2
Caption Management, LLC added122,452$204K0.3%2026-Q2
ALLIANCEBERNSTEIN L.P. added117,680$184K0.3%2026-Q2
ARISTEIA CAPITAL, L.L.C. new111,888$35K0.1%2026-Q2
SIR Capital Management, L.P. added109,651$183K0.3%2026-Q2
Arosa Capital Management LP trimmed106,249$31K0.0%2026-Q2
LOS ANGELES CAPITAL MANAGEMENT LLC added96,430$161K0.3%2026-Q2
MOORE CAPITAL MANAGEMENT, LP85,000$142K0.2%2026-Q2
Bank of New York Mellon Corp trimmed83,821$140K0.2%2026-Q2
SIMPLEX TRADING, LLC added77,604$130K0.2%2026-Q2
XTX Topco Ltd added73,944$123K0.2%2026-Q2
LPL Financial LLC added57,074$95K0.2%2026-Q2
DEUTSCHE BANK AG\ added56,064$94K0.2%2026-Q2
Qube Research & Technologies Ltd added55,825$93K0.2%2026-Q2
RHUMBLINE ADVISERS added53,919$90K0.1%2026-Q2
K2 PRINCIPAL FUND, L.P. added46,181$13K0.0%2026-Q2
IMC-Chicago, LLC new41,449$69K0.1%2026-Q2
OSAIC HOLDINGS, INC. trimmed40,785$68K0.1%2026-Q2
MILLENNIUM MANAGEMENT LLC trimmed37,844$63K0.1%2026-Q2
WELLS FARGO & COMPANY/MN added35,383$59K0.1%2026-Q2
Jain Global LLC added34,819$58K0.1%2026-Q2
Russell Investments Group, Ltd. added33,503$56K0.1%2026-Q2
Thomas J. Herzfeld Advisors, Inc. new32,771$10K0.0%2026-Q2
SIG BROKERAGE, LP31,942$53K0.1%2026-Q2
CANADA PENSION PLAN INVESTMENT BOARD new29,700$50K0.1%2026-Q2
Ionic Capital Management LLC new29,036$8K0.0%2026-Q2
Quadrature Capital Ltd new26,934$45K0.1%2026-Q2
BANK OF AMERICA CORP /DE/ trimmed26,930$45K0.1%2026-Q2
Teilinger Capital Ltd. new25,000$7K0.0%2026-Q2
TWO SIGMA SECURITIES, LLC added22,060$37K0.1%2026-Q2
Invesco Ltd. added22,043$37K0.1%2026-Q2
CAPTRUST FINANCIAL ADVISORS added19,846$33K0.1%2026-Q2
CITIGROUP INC added19,652$33K0.1%2026-Q2
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added19,454$32K0.1%2026-Q2
Polymer Capital Management (US) LLC trimmed18,731$31K0.1%2026-Q2
GROUP ONE TRADING LLC added18,672$31K0.1%2026-Q2
Mariner, LLC added18,552$31K0.0%2026-Q2
JPMORGAN CHASE & CO added18,211$30K0.0%2026-Q2
INTEGRITY ALLIANCE, LLC.17,400$29K0.0%2026-Q2
Kapstone Financial Advisors LLC17,395$29K0.0%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/17,028$29K0.0%2026-Q2
Legacy Advisors, LLC added16,413$27K0.0%2026-Q2
Engineers Gate Manager LP trimmed16,261$27K0.0%2026-Q2
IEQ CAPITAL, LLC new16,207$27K0.0%2026-Q2
MERCER GLOBAL ADVISORS INC /ADV new16,047$27K0.0%2026-Q2
Point72 Asset Management, L.P. trimmed15,340$26K0.0%2026-Q2
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC new13,528$21K0.0%2026-Q2
SEI INVESTMENTS CO12,854$21K0.0%2026-Q2
ROYAL BANK OF CANADA added12,831$21K0.0%2026-Q2
Creative Planning new12,217$20K0.0%2026-Q2
Private Advisor Group, LLC12,200$20K0.0%2026-Q2
Vanguard Global Advisers, LLC12,172$20K0.0%2026-Q2
Aigen Investment Management, LP new11,812$20K0.0%2026-Q2
Focus Partners Wealth new10,863$18K0.0%2026-Q2
INTECH INVESTMENT MANAGEMENT LLC10,786$18K0.0%2026-Q2
TRUIST FINANCIAL CORP10,000$17K0.0%2026-Q2
BARCLAYS PLC added8,948$15K0.0%2026-Q2
Arax Advisory Partners added8,943$15K0.0%2026-Q2
Integrated Wealth Concepts LLC new7,372$12K0.0%2026-Q2
Tower Research Capital LLC (TRC) trimmed7,332$12K0.0%2026-Q2
LANARK FINANCIAL, INC.6,340$11K0.0%2026-Q2
NEW YORK STATE COMMON RETIREMENT FUND5,100$9K0.0%2026-Q2
FIFTH THIRD BANCORP5,000$8K0.0%2026-Q2
Police & Firemen's Retirement System of New Jersey4,252$7K0.0%2026-Q2

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership