Who owns GRNT (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-Q1 13F filings. 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
The tracked-fund tape on GRNT is one-sided between 2025-Q4 and 2026-Q1: 36 added or opened and 9 trimmed or exited — on balance accumulating.
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 2025-Q4 and 2026-Q1, across 155 tracked filers holding GRNT, 85 increased or opened the position and 76 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 2025-Q4 and 2026-Q1 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 7
- VANGUARD CAPITAL MANAGEMENT LLC$18M
- VANGUARD PORTFOLIO MANAGEMENT LLC$9M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$7M
- VANGUARD FIDUCIARY TRUST CO$3M
- Point72 Asset Management, L.P.$2M
- Connor, Clark & Lunn Investment Management Ltd.$1M
Full exits 4
- VANGUARD GROUP INC$22M
- ZAZOVE ASSOCIATES LLC$3M
- LAZARD ASSET MANAGEMENT LLC$1M
- PRUDENTIAL FINANCIAL INC$556K
Largest adds
- Grey Rock Energy Management, LLC$65M
- BlackRock, Inc.$8M
- HAMILTON LANE ADVISORS LLC$6M
- Utah Retirement Systems$6M
- DIMENSIONAL FUND ADVISORS LP$6M
- MILLENNIUM MANAGEMENT LLC$5M
Largest trims
- BANK OF AMERICA CORP /DE/$5M
- JANE STREET GROUP, LLC$1M
- MORGAN STANLEY$511K
- Susquehanna Portfolio Strategies, LLC$417K
- ExodusPoint Capital Management, LP$317K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| Grey Rock Energy Management, LLC | 55,265,968 | $324M | 46.9% | 2026-Q1 |
| HAMILTON LANE ADVISORS LLC trimmed | 7,387,888 | $43M | 6.3% | 2026-Q1 |
| Utah Retirement Systems | 5,243,683 | $31M | 4.5% | 2026-Q1 |
| BlackRock, Inc. added | 4,709,865 | $28M | 4.0% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 3,306,999 | $19M | 2.8% | 2026-Q1 |
| Georgetown University trimmed | 3,183,114 | $19M | 2.7% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 3,083,172 | $18M | 2.6% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 2,998,102 | $18M | 2.5% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,509,934 | $9M | 1.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,475,852 | $9M | 1.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,357,469 | $8M | 1.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 1,128,371 | $7M | 1.0% | 2026-Q1 |
| STATE STREET CORP added | 1,077,951 | $6M | 0.9% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 1,006,252 | $6M | 0.9% | 2026-Q1 |
| Bank of New York Mellon Corp added | 949,688 | $6M | 0.8% | 2026-Q1 |
| Nuveen, LLC added | 815,427 | $5M | 0.7% | 2026-Q1 |
| CWA Asset Management Group, LLC added | 786,478 | $5M | 0.7% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 702,319 | $4M | 0.6% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 691,991 | $4M | 0.6% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 499,140 | $3M | 0.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 468,185 | $3M | 0.4% | 2026-Q1 |
| NORTHERN TRUST CORP added | 434,643 | $3M | 0.4% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 432,065 | $3M | 0.4% | 2026-Q1 |
| Creative Planning added | 396,521 | $2M | 0.3% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 366,573 | $2M | 0.3% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 347,207 | $2M | 0.3% | 2026-Q1 |
| SFMG, LLC | 310,606 | $2M | 0.3% | 2026-Q1 |
| UBS Group AG added | 306,738 | $2M | 0.3% | 2026-Q1 |
| MORGAN STANLEY trimmed | 297,851 | $2M | 0.3% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 285,686 | $2M | 0.2% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. new | 244,422 | $1M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 226,161 | $1M | 0.2% | 2026-Q1 |
| Numerai GP LLC added | 194,994 | $1M | 0.2% | 2026-Q1 |
| Aventail Capital Group, LP added | 181,818 | $1M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 175,009 | $1M | 0.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 154,070 | $904K | 0.1% | 2026-Q1 |
| Trexquant Investment LP added | 142,415 | $836K | 0.1% | 2026-Q1 |
| MARSHALL WACE, LLP trimmed | 140,527 | $825K | 0.1% | 2026-Q1 |
| Unison Advisors LLC | 137,101 | $805K | 0.1% | 2026-Q1 |
| Invesco Ltd. trimmed | 134,728 | $791K | 0.1% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 126,878 | $745K | 0.1% | 2026-Q1 |
| BARCLAYS PLC added | 121,271 | $712K | 0.1% | 2026-Q1 |
| Saba Capital Management, L.P. | 115,878 | $680K | 0.1% | 2026-Q1 |
| Swiss National Bank | 112,700 | $662K | 0.1% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN trimmed | 98,863 | $580K | 0.1% | 2026-Q1 |
| ExodusPoint Capital Management, LP trimmed | 93,497 | $549K | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 86,650 | $509K | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 80,361 | $472K | 0.1% | 2026-Q1 |
| IEQ CAPITAL, LLC trimmed | 78,827 | $463K | 0.1% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO | 66,800 | $392K | 0.1% | 2026-Q1 |
| HSBC HOLDINGS PLC new | 65,530 | $391K | 0.1% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 65,232 | $383K | 0.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 65,200 | $383K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 61,821 | $363K | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 59,066 | $347K | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 58,415 | $343K | 0.0% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 57,605 | $338K | 0.0% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 53,681 | $315K | 0.0% | 2026-Q1 |
| MQS Management LLC trimmed | 52,998 | $311K | 0.0% | 2026-Q1 |
| CWM, LLC trimmed | 51,331 | $301K | 0.0% | 2026-Q1 |
| Beacon Pointe Advisors, LLC added | 49,411 | $290K | 0.0% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 45,759 | $269K | 0.0% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 43,726 | $257K | 0.0% | 2026-Q1 |
| Ethic Inc. added | 43,263 | $254K | 0.0% | 2026-Q1 |
| Ellevest, Inc. added | 42,516 | $250K | 0.0% | 2026-Q1 |
| MIRABELLA FINANCIAL SERVICES LLP new | 42,053 | $247K | 0.0% | 2026-Q1 |
| Campbell & CO Investment Adviser LLC trimmed | 41,783 | $245K | 0.0% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. | 52,150 | $245K | 0.0% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 39,613 | $233K | 0.0% | 2026-Q1 |
| Independent Wealth Network Inc. added | 38,934 | $229K | 0.0% | 2026-Q1 |
| Ausdal Financial Partners, Inc. trimmed | 37,126 | $218K | 0.0% | 2026-Q1 |
| GREAT LAKES ADVISORS, LLC added | 33,406 | $196K | 0.0% | 2026-Q1 |
| MERCER GLOBAL ADVISORS INC /ADV added | 32,926 | $193K | 0.0% | 2026-Q1 |
| Centiva Capital, LP new | 32,004 | $188K | 0.0% | 2026-Q1 |
| Mariner, LLC trimmed | 30,983 | $182K | 0.0% | 2026-Q1 |
| Corient Private Wealth LLC added | 29,392 | $173K | 0.0% | 2026-Q1 |
| Spider Management Company, LLC | 4,951,533 | $30M | 4.4% | 2025-Q1 stale |
| VANGUARD GROUP INC added | 4,619,275 | $22M | 3.1% | 2025-Q4 stale |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | 1,497,079 | $8M | 1.2% | 2025-Q3 stale |
| ZAZOVE ASSOCIATES LLC trimmed | 683,056 | $3M | 0.5% | 2025-Q4 stale |
| SEGALL BRYANT & HAMILL, LLC trimmed | 370,634 | $2M | 0.3% | 2025-Q3 stale |
| LAZARD ASSET MANAGEMENT LLC added | 310,629 | $1M | 0.2% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 212,987 | $1M | 0.2% | 2025-Q2 stale |
| CROWN ADVISORS MANAGEMENT, INC. | 200,000 | $1M | 0.2% | 2025-Q1 stale |
| North Star Investment Management Corp. | 164,000 | $997K | 0.1% | 2025-Q1 stale |
| GSA CAPITAL PARTNERS LLP trimmed | 171,291 | $927K | 0.1% | 2025-Q3 stale |
| SummerHaven Investment Management, LLC added | 122,994 | $783K | 0.1% | 2025-Q2 stale |
| DENALI ADVISORS LLC trimmed | 138,600 | $750K | 0.1% | 2025-Q3 stale |
| PRUDENTIAL FINANCIAL INC trimmed | 118,310 | $556K | 0.1% | 2025-Q4 stale |
| Empowered Funds, LLC new | 74,607 | $475K | 0.1% | 2025-Q2 stale |
| HighTower Advisors, LLC trimmed | 94,029 | $442K | 0.1% | 2025-Q4 stale |
| VARCOV Co. new | 86,084 | $405K | 0.1% | 2025-Q4 stale |
| STRS OHIO trimmed | 71,000 | $334K | 0.0% | 2025-Q4 stale |
| Ashton Thomas Private Wealth, LLC trimmed | 51,150 | $326K | 0.0% | 2025-Q2 stale |
| Counterpoint Mutual Funds LLC new | 62,926 | $296K | 0.0% | 2025-Q4 stale |
| Jump Financial, LLC trimmed | 44,576 | $284K | 0.0% | 2025-Q2 stale |
| XTX Topco Ltd added | 36,850 | $235K | 0.0% | 2025-Q2 stale |
| Squarepoint Ops LLC added | 39,235 | $212K | 0.0% | 2025-Q3 stale |
| Engineers Gate Manager LP trimmed | 39,966 | $188K | 0.0% | 2025-Q4 stale |
| DekaBank Deutsche Girozentrale | 24,944 | $179K | 0.0% | 2025-Q4 stale |
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.