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Institutional Ownership · SEC Form 13F

Who owns GRNT


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

166
Institutional holders
111M
Shares held (tracked funds)

How the tape is positioned

16 tracked funds added or opened GRNT while 31 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

GRNT’s largest tracked holder by dollar value, Grey Rock Energy Management, LLC, sizes it at 100.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 100.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.

Book-share is each fund’s reported value in GRNT 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 166 tracked filers holding GRNT, 113 increased or opened the position and 56 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.

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 GRNT 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.

New buyers 5

  • ALGERT GLOBAL LLC$2M
  • Y-Intercept (Hong Kong) Ltd$1M
  • Squarepoint Ops LLC$1M
  • Jump Financial, LLC$807K
  • VARCOV Co.$614K

Full exits 1

  • Aventail Capital Group, LP$1M

Largest adds

  • Trexquant Investment LP$2M
  • MORGAN STANLEY$2M
  • JPMORGAN CHASE & CO$1M
  • TWO SIGMA INVESTMENTS, LP$1M
  • Quantinno Capital Management LP$1M
  • Susquehanna Portfolio Strategies, LLC$906K

Largest trims

  • Grey Rock Energy Management, LLC$81M
  • HAMILTON LANE ADVISORS LLC$14M
  • Utah Retirement Systems$8M
  • BlackRock, Inc.$6M
  • Georgetown University$5M
  • MILLENNIUM MANAGEMENT LLC$5M

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
Grey Rock Energy Management, LLC55,265,968$244M50.1%2026-Q2
HAMILTON LANE ADVISORS LLC trimmed6,762,623$30M6.1%2026-Q2
Utah Retirement Systems5,243,683$23M4.8%2026-Q2
BlackRock, Inc. added4,968,334$22M4.5%2026-Q2
DIMENSIONAL FUND ADVISORS LP added3,937,656$17M3.6%2026-Q2
AMERICAN CENTURY COMPANIES INC added3,113,795$14M2.8%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC trimmed3,080,572$14M2.8%2026-Q2
Georgetown University trimmed3,079,000$14M2.8%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC added1,640,135$7M1.5%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added1,602,260$7M1.5%2026-Q2
AQR CAPITAL MANAGEMENT LLC added1,526,352$7M1.4%2026-Q2
STATE STREET CORP added1,204,136$5M1.1%2026-Q2
Bank of New York Mellon Corp trimmed943,781$4M0.9%2026-Q2
TWO SIGMA INVESTMENTS, LP added928,705$4M0.8%2026-Q2
CWA Asset Management Group, LLC added911,580$4M0.8%2026-Q2
Nuveen, LLC added871,211$4M0.8%2026-Q2
MILLENNIUM MANAGEMENT LLC trimmed777,965$3M0.7%2026-Q2
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed770,058$3M0.7%2026-Q2
MORGAN STANLEY added769,494$3M0.7%2026-Q2
JACOBS LEVY EQUITY MANAGEMENT, INC added716,303$3M0.6%2026-Q2
JPMORGAN CHASE & CO added699,485$3M0.6%2026-Q2
Trexquant Investment LP added643,051$3M0.6%2026-Q2
NORTHERN TRUST CORP added582,908$3M0.5%2026-Q2
GOLDMAN SACHS GROUP INC trimmed539,329$2M0.5%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added514,761$2M0.5%2026-Q2
ZAZOVE ASSOCIATES LLC trimmed508,970$2M0.5%2026-Q2
Connor, Clark & Lunn Investment Management Ltd. added501,116$2M0.5%2026-Q2
VANGUARD FIDUCIARY TRUST CO added452,881$2M0.4%2026-Q2
FIRST TRUST ADVISORS LP added432,510$2M0.4%2026-Q2
Point72 Asset Management, L.P. added427,319$2M0.4%2026-Q2
Quantinno Capital Management LP added396,999$2M0.4%2026-Q2
ALGERT GLOBAL LLC new389,856$2M0.4%2026-Q2
SFMG, LLC added337,730$1M0.3%2026-Q2
Y-Intercept (Hong Kong) Ltd new322,952$1M0.3%2026-Q2
Squarepoint Ops LLC added301,255$1M0.3%2026-Q2
Creative Planning trimmed237,590$1M0.2%2026-Q2
VICTORY CAPITAL MANAGEMENT INC added233,715$1M0.2%2026-Q2
Vanguard Global Advisers, LLC added233,091$1M0.2%2026-Q2
Susquehanna Portfolio Strategies, LLC added223,866$987K0.2%2026-Q2
Jump Financial, LLC added182,905$807K0.2%2026-Q2
AMERIPRISE FINANCIAL INC added175,353$773K0.2%2026-Q2
CITADEL ADVISORS LLC added162,517$717K0.1%2026-Q2
PDT Partners, LLC added157,202$693K0.1%2026-Q2
Unison Advisors LLC added139,723$616K0.1%2026-Q2
VARCOV Co. added139,253$614K0.1%2026-Q2
WELLS FARGO & COMPANY/MN added126,478$558K0.1%2026-Q2
Invesco Ltd. trimmed124,023$547K0.1%2026-Q2
IEQ CAPITAL, LLC added123,055$543K0.1%2026-Q2
Swiss National Bank added118,700$523K0.1%2026-Q2
Numerai GP LLC trimmed118,268$522K0.1%2026-Q2
Russell Investments Group, Ltd. added117,168$517K0.1%2026-Q2
Saba Capital Management, L.P.115,878$511K0.1%2026-Q2
BANK OF AMERICA CORP /DE/ trimmed95,411$421K0.1%2026-Q2
BOOTHBAY FUND MANAGEMENT, LLC new91,898$405K0.1%2026-Q2
HSBC HOLDINGS PLC added91,642$406K0.1%2026-Q2
FMR LLC added87,731$387K0.1%2026-Q2
BALYASNY ASSET MANAGEMENT L.P. new84,823$374K0.1%2026-Q2
MARSHALL WACE, LLP trimmed78,465$346K0.1%2026-Q2
ALLIANCEBERNSTEIN L.P. added76,050$446K0.1%2026-Q2
RENAISSANCE TECHNOLOGIES LLC added74,600$329K0.1%2026-Q2
MERCER GLOBAL ADVISORS INC /ADV added73,216$323K0.1%2026-Q2
ExodusPoint Capital Management, LP trimmed72,979$322K0.1%2026-Q2
SUSQUEHANNA INTERNATIONAL GROUP, LLP added72,331$319K0.1%2026-Q2
WINTON GROUP Ltd new68,372$302K0.1%2026-Q2
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO66,800$295K0.1%2026-Q2
RHUMBLINE ADVISERS added66,578$294K0.1%2026-Q2
Campbell & CO Investment Adviser LLC added64,728$285K0.1%2026-Q2
BNP PARIBAS FINANCIAL MARKETS added64,510$284K0.1%2026-Q2
Mariner, LLC added61,052$269K0.1%2026-Q2
Legal & General Group Plc added59,549$263K0.1%2026-Q2
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed57,374$253K0.1%2026-Q2
DEUTSCHE BANK AG\ added55,761$246K0.1%2026-Q2
Independent Wealth Network Inc. added54,287$239K0.0%2026-Q2
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC53,681$237K0.0%2026-Q2
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added53,580$245K0.1%2026-Q2
D. E. Shaw & Co., Inc. added47,234$208K0.0%2026-Q2
VANGUARD ASSET MANAGEMENT, Ltd45,759$202K0.0%2026-Q2
Beacon Pointe Advisors, LLC trimmed41,826$184K0.0%2026-Q2
Aquatic Capital Management LLC added40,893$180K0.0%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/39,613$175K0.0%2026-Q2
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added38,939$172K0.0%2026-Q2
Inscription Capital, LLC new38,793$171K0.0%2026-Q2
UBS Group AG trimmed37,404$165K0.0%2026-Q2
Ausdal Financial Partners, Inc.37,126$164K0.0%2026-Q2
Abel Hall, LLC new36,602$161K0.0%2026-Q2
Mitsubishi UFJ Trust & Banking Corp added36,584$161K0.0%2026-Q2
EntryPoint Capital, LLC trimmed35,386$156K0.0%2026-Q2
Cerity Partners LLC added35,092$155K0.0%2026-Q2
Schonfeld Strategic Advisors LLC added34,366$152K0.0%2026-Q2
MetLife Investment Management, LLC added33,689$149K0.0%2026-Q2
CITIGROUP INC added33,375$147K0.0%2026-Q2
Corient Private Wealth LP added31,296$138K0.0%2026-Q2
Versant Capital Management, Inc added27,475$121K0.0%2026-Q2
VIRTUS ADVISERS, LLC added25,628$113K0.0%2026-Q2
Oasis Management Co Ltd.25,000$110K0.0%2026-Q2
Allianz Asset Management GmbH23,613$139K0.0%2026-Q2
Centiva Capital, LP trimmed21,645$95K0.0%2026-Q2
Jain Global LLC new21,498$95K0.0%2026-Q2
MANUFACTURERS LIFE INSURANCE COMPANY, THE added21,443$95K0.0%2026-Q2
Engineers Gate Manager LP trimmed20,171$89K0.0%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