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.
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.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Grey Rock Energy Management, LLC | 55,265,968 | $244M | 50.1% | 2026-Q2 |
| HAMILTON LANE ADVISORS LLC trimmed | 6,762,623 | $30M | 6.1% | 2026-Q2 |
| Utah Retirement Systems | 5,243,683 | $23M | 4.8% | 2026-Q2 |
| BlackRock, Inc. added | 4,968,334 | $22M | 4.5% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 3,937,656 | $17M | 3.6% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 3,113,795 | $14M | 2.8% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 3,080,572 | $14M | 2.8% | 2026-Q2 |
| Georgetown University trimmed | 3,079,000 | $14M | 2.8% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 1,640,135 | $7M | 1.5% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,602,260 | $7M | 1.5% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 1,526,352 | $7M | 1.4% | 2026-Q2 |
| STATE STREET CORP added | 1,204,136 | $5M | 1.1% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 943,781 | $4M | 0.9% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 928,705 | $4M | 0.8% | 2026-Q2 |
| CWA Asset Management Group, LLC added | 911,580 | $4M | 0.8% | 2026-Q2 |
| Nuveen, LLC added | 871,211 | $4M | 0.8% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 777,965 | $3M | 0.7% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 770,058 | $3M | 0.7% | 2026-Q2 |
| MORGAN STANLEY added | 769,494 | $3M | 0.7% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 716,303 | $3M | 0.6% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 699,485 | $3M | 0.6% | 2026-Q2 |
| Trexquant Investment LP added | 643,051 | $3M | 0.6% | 2026-Q2 |
| NORTHERN TRUST CORP added | 582,908 | $3M | 0.5% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 539,329 | $2M | 0.5% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 514,761 | $2M | 0.5% | 2026-Q2 |
| ZAZOVE ASSOCIATES LLC trimmed | 508,970 | $2M | 0.5% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 501,116 | $2M | 0.5% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 452,881 | $2M | 0.4% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 432,510 | $2M | 0.4% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 427,319 | $2M | 0.4% | 2026-Q2 |
| Quantinno Capital Management LP added | 396,999 | $2M | 0.4% | 2026-Q2 |
| ALGERT GLOBAL LLC new | 389,856 | $2M | 0.4% | 2026-Q2 |
| SFMG, LLC added | 337,730 | $1M | 0.3% | 2026-Q2 |
| Y-Intercept (Hong Kong) Ltd new | 322,952 | $1M | 0.3% | 2026-Q2 |
| Squarepoint Ops LLC added | 301,255 | $1M | 0.3% | 2026-Q2 |
| Creative Planning trimmed | 237,590 | $1M | 0.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 233,715 | $1M | 0.2% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 233,091 | $1M | 0.2% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 223,866 | $987K | 0.2% | 2026-Q2 |
| Jump Financial, LLC added | 182,905 | $807K | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 175,353 | $773K | 0.2% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 162,517 | $717K | 0.1% | 2026-Q2 |
| PDT Partners, LLC added | 157,202 | $693K | 0.1% | 2026-Q2 |
| Unison Advisors LLC added | 139,723 | $616K | 0.1% | 2026-Q2 |
| VARCOV Co. added | 139,253 | $614K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 126,478 | $558K | 0.1% | 2026-Q2 |
| Invesco Ltd. trimmed | 124,023 | $547K | 0.1% | 2026-Q2 |
| IEQ CAPITAL, LLC added | 123,055 | $543K | 0.1% | 2026-Q2 |
| Swiss National Bank added | 118,700 | $523K | 0.1% | 2026-Q2 |
| Numerai GP LLC trimmed | 118,268 | $522K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 117,168 | $517K | 0.1% | 2026-Q2 |
| Saba Capital Management, L.P. | 115,878 | $511K | 0.1% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 95,411 | $421K | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC new | 91,898 | $405K | 0.1% | 2026-Q2 |
| HSBC HOLDINGS PLC added | 91,642 | $406K | 0.1% | 2026-Q2 |
| FMR LLC added | 87,731 | $387K | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. new | 84,823 | $374K | 0.1% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 78,465 | $346K | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 76,050 | $446K | 0.1% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 74,600 | $329K | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 73,216 | $323K | 0.1% | 2026-Q2 |
| ExodusPoint Capital Management, LP trimmed | 72,979 | $322K | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 72,331 | $319K | 0.1% | 2026-Q2 |
| WINTON GROUP Ltd new | 68,372 | $302K | 0.1% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | 66,800 | $295K | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 66,578 | $294K | 0.1% | 2026-Q2 |
| Campbell & CO Investment Adviser LLC added | 64,728 | $285K | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 64,510 | $284K | 0.1% | 2026-Q2 |
| Mariner, LLC added | 61,052 | $269K | 0.1% | 2026-Q2 |
| Legal & General Group Plc added | 59,549 | $263K | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 57,374 | $253K | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 55,761 | $246K | 0.1% | 2026-Q2 |
| Independent Wealth Network Inc. added | 54,287 | $239K | 0.0% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 53,681 | $237K | 0.0% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added | 53,580 | $245K | 0.1% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 47,234 | $208K | 0.0% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd | 45,759 | $202K | 0.0% | 2026-Q2 |
| Beacon Pointe Advisors, LLC trimmed | 41,826 | $184K | 0.0% | 2026-Q2 |
| Aquatic Capital Management LLC added | 40,893 | $180K | 0.0% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 39,613 | $175K | 0.0% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 38,939 | $172K | 0.0% | 2026-Q2 |
| Inscription Capital, LLC new | 38,793 | $171K | 0.0% | 2026-Q2 |
| UBS Group AG trimmed | 37,404 | $165K | 0.0% | 2026-Q2 |
| Ausdal Financial Partners, Inc. | 37,126 | $164K | 0.0% | 2026-Q2 |
| Abel Hall, LLC new | 36,602 | $161K | 0.0% | 2026-Q2 |
| Mitsubishi UFJ Trust & Banking Corp added | 36,584 | $161K | 0.0% | 2026-Q2 |
| EntryPoint Capital, LLC trimmed | 35,386 | $156K | 0.0% | 2026-Q2 |
| Cerity Partners LLC added | 35,092 | $155K | 0.0% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 34,366 | $152K | 0.0% | 2026-Q2 |
| MetLife Investment Management, LLC added | 33,689 | $149K | 0.0% | 2026-Q2 |
| CITIGROUP INC added | 33,375 | $147K | 0.0% | 2026-Q2 |
| Corient Private Wealth LP added | 31,296 | $138K | 0.0% | 2026-Q2 |
| Versant Capital Management, Inc added | 27,475 | $121K | 0.0% | 2026-Q2 |
| VIRTUS ADVISERS, LLC added | 25,628 | $113K | 0.0% | 2026-Q2 |
| Oasis Management Co Ltd. | 25,000 | $110K | 0.0% | 2026-Q2 |
| Allianz Asset Management GmbH | 23,613 | $139K | 0.0% | 2026-Q2 |
| Centiva Capital, LP trimmed | 21,645 | $95K | 0.0% | 2026-Q2 |
| Jain Global LLC new | 21,498 | $95K | 0.0% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 21,443 | $95K | 0.0% | 2026-Q2 |
| Engineers Gate Manager LP trimmed | 20,171 | $89K | 0.0% | 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.
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.