Who owns GRBK (GRBK)
Which tracked institutional funds hold GRBK, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GRBK 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
60 tracked funds added or opened GRBK while 34 trimmed or exited it between 2025-Q4 and 2026-Q1 — 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
GRBK’s largest tracked holder by dollar value, DME Capital Management, LP, sizes it at 19.1% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 19.1pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in GRBK 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 311 tracked filers holding GRBK, 163 increased or opened the position and 116 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
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 GRBK 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 13
- VANGUARD CAPITAL MANAGEMENT LLC$88M
- VANGUARD PORTFOLIO MANAGEMENT LLC$39M
- VANGUARD FIDUCIARY TRUST CO$13M
- FRANKLIN RESOURCES INC$11M
- Hi-Line Capital Management, LLC$4M
- Stonehage Fleming Financial Services Holdings Ltd$3M
Full exits 11
- VANGUARD GROUP INC$122M
- Brandywine Global Investment Management, LLC$11M
- NORGES BANK$5M
- HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$3M
- RENAISSANCE TECHNOLOGIES LLC$3M
- F/m Investments LLC$2M
Largest adds
- DME Capital Management, LP$17M
- DIMENSIONAL FUND ADVISORS LP$10M
- GOLDMAN SACHS GROUP INC$7M
- FMR LLC$6M
- Qube Research & Technologies Ltd$5M
- Crawford Fund Management, LLC$4M
Largest trims
- BlackRock, Inc.$78M
- NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO$32M
- MANUFACTURERS LIFE INSURANCE COMPANY, THE$8M
- NATIONAL BANK OF CANADA /FI/$3M
- CITADEL ADVISORS LLC$2M
- KENNEDY CAPITAL MANAGEMENT LLC$2M
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 |
|---|---|---|---|---|
| DME Capital Management, LP | 9,467,383 | $610M | 27.8% | 2026-Q1 |
| BlackRock, Inc. trimmed | 3,510,387 | $226M | 10.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,761,580 | $114M | 5.2% | 2026-Q1 |
| FMR LLC added | 1,651,609 | $106M | 4.9% | 2026-Q1 |
| STATE STREET CORP trimmed | 1,459,520 | $94M | 4.3% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,363,100 | $88M | 4.0% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 751,028 | $48M | 2.2% | 2026-Q1 |
| SALEM INVESTMENT COUNSELORS INC trimmed | 641,855 | $41M | 1.9% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 599,388 | $39M | 1.8% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 586,569 | $38M | 1.7% | 2026-Q1 |
| Annex Advisory Services, LLC added | 549,736 | $35M | 1.6% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 469,069 | $30M | 1.4% | 2026-Q1 |
| JBF Capital, Inc. | 436,530 | $28M | 1.3% | 2026-Q1 |
| Boston Partners added | 384,974 | $25M | 1.1% | 2026-Q1 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. added | 358,341 | $23M | 1.1% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 344,651 | $22M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 336,423 | $22M | 1.0% | 2026-Q1 |
| GW&K Investment Management, LLC trimmed | 308,945 | $20M | 0.9% | 2026-Q1 |
| Invesco Ltd. added | 303,397 | $20M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 292,205 | $19M | 0.9% | 2026-Q1 |
| MORGAN STANLEY trimmed | 234,971 | $15M | 0.7% | 2026-Q1 |
| National Philanthropic Trust | 231,556 | $15M | 0.7% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 204,110 | $13M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 202,958 | $13M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 201,429 | $13M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 205,980 | $13M | 0.6% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 170,897 | $11M | 0.5% | 2026-Q1 |
| FIRST MANHATTAN CO. LLC. trimmed | 170,533 | $11M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC trimmed | 163,520 | $11M | 0.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 159,039 | $10M | 0.5% | 2026-Q1 |
| Crawford Fund Management, LLC added | 156,700 | $10M | 0.5% | 2026-Q1 |
| BROWN BROTHERS HARRIMAN & CO | 141,628 | $9M | 0.4% | 2026-Q1 |
| Public Sector Pension Investment Board added | 134,107 | $9M | 0.4% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 133,602 | $9M | 0.4% | 2026-Q1 |
| Allianz Asset Management GmbH | 119,242 | $8M | 0.4% | 2026-Q1 |
| DENALI ADVISORS LLC trimmed | 114,674 | $7M | 0.3% | 2026-Q1 |
| Ranger Investment Management, L.P. trimmed | 108,724 | $7M | 0.3% | 2026-Q1 |
| Edgestream Partners, L.P. trimmed | 106,761 | $7M | 0.3% | 2026-Q1 |
| UBS Group AG added | 102,120 | $7M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 100,124 | $6M | 0.3% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 92,639 | $6M | 0.3% | 2026-Q1 |
| Security National Bank added | 92,637 | $6M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 86,764 | $6M | 0.3% | 2026-Q1 |
| Ballast, Inc. | 73,494 | $5M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 69,965 | $5M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 69,658 | $4M | 0.2% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 69,224 | $4M | 0.2% | 2026-Q1 |
| North Star Investment Management Corp. | 68,275 | $4M | 0.2% | 2026-Q1 |
| Nuveen, LLC added | 66,189 | $4M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 64,661 | $4M | 0.2% | 2026-Q1 |
| Swiss National Bank | 64,500 | $4M | 0.2% | 2026-Q1 |
| Empowered Funds, LLC added | 63,522 | $4M | 0.2% | 2026-Q1 |
| Hi-Line Capital Management, LLC new | 63,434 | $4M | 0.2% | 2026-Q1 |
| RICE HALL JAMES & ASSOCIATES, LLC trimmed | 62,451 | $4M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 61,824 | $4M | 0.2% | 2026-Q1 |
| CITIGROUP INC added | 60,457 | $4M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 54,715 | $4M | 0.2% | 2026-Q1 |
| ISTHMUS PARTNERS, LLC added | 53,216 | $3M | 0.2% | 2026-Q1 |
| Belpointe Asset Management LLC added | 49,365 | $3M | 0.1% | 2026-Q1 |
| HARBOR CAPITAL ADVISORS, INC. trimmed | 49,323 | $3M | 0.1% | 2026-Q1 |
| Kennondale Capital Management LLC | 48,995 | $3M | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 48,852 | $3M | 0.1% | 2026-Q1 |
| BESSEMER GROUP INC added | 48,493 | $3M | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 47,708 | $3M | 0.1% | 2026-Q1 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC added | 46,928 | $3M | 0.1% | 2026-Q1 |
| AWH Capital, L.P. | 45,000 | $3M | 0.1% | 2026-Q1 |
| CROWN ADVISORS MANAGEMENT, INC. | 45,000 | $3M | 0.1% | 2026-Q1 |
| Raiffeisen Bank International AG added | 43,965 | $3M | 0.1% | 2026-Q1 |
| Rafferty Asset Management, LLC trimmed | 43,363 | $3M | 0.1% | 2026-Q1 |
| WINTON GROUP Ltd trimmed | 42,516 | $3M | 0.1% | 2026-Q1 |
| HighTower Advisors, LLC trimmed | 42,267 | $3M | 0.1% | 2026-Q1 |
| Squarepoint Ops LLC added | 41,540 | $3M | 0.1% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND | 40,620 | $3M | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 40,008 | $3M | 0.1% | 2026-Q1 |
| EverSource Wealth Advisors, LLC added | 9,250 | $3M | 0.1% | 2026-Q1 |
| Stonehage Fleming Financial Services Holdings Ltd new | 39,376 | $3M | 0.1% | 2026-Q1 |
| Engineers Gate Manager LP added | 38,672 | $2M | 0.1% | 2026-Q1 |
| ARGENT CAPITAL MANAGEMENT LLC added | 37,404 | $2M | 0.1% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 38,303 | $2M | 0.1% | 2026-Q1 |
| Emerald Investment Advisers, LLC new | 36,447 | $2M | 0.1% | 2026-Q1 |
| INTREPID CAPITAL MANAGEMENT INC added | 34,901 | $2M | 0.1% | 2026-Q1 |
| D.A. DAVIDSON & CO. added | 32,976 | $2M | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 32,174 | $2M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 31,029 | $2M | 0.1% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC trimmed | 30,474 | $2M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 30,450 | $2M | 0.1% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 29,764 | $2M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 1,949,029 | $122M | 5.6% | 2025-Q4 stale |
| WCM INVESTMENT MANAGEMENT, LLC added | 152,362 | $11M | 0.5% | 2025-Q3 stale |
| Brandywine Global Investment Management, LLC trimmed | 175,449 | $11M | 0.5% | 2025-Q4 stale |
| RENAISSANCE GROUP LLC added | 112,998 | $8M | 0.4% | 2025-Q3 stale |
| NORGES BANK added | 85,408 | $5M | 0.2% | 2025-Q4 stale |
| FIRST SABREPOINT CAPITAL MANAGEMENT LP trimmed | 70,000 | $5M | 0.2% | 2025-Q3 stale |
| Granahan Investment Management, LLC trimmed | 61,870 | $5M | 0.2% | 2025-Q3 stale |
| LAZARD ASSET MANAGEMENT LLC added | 62,420 | $4M | 0.2% | 2025-Q2 stale |
| 4D Advisors, LLC added | 50,000 | $4M | 0.2% | 2025-Q3 stale |
| ExodusPoint Capital Management, LP added | 52,140 | $3M | 0.1% | 2025-Q2 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 45,702 | $3M | 0.1% | 2025-Q4 stale |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 45,109 | $3M | 0.1% | 2025-Q4 stale |
| LMG Wealth Partners, LLC added | 25,562 | $2M | 0.1% | 2025-Q3 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.