Who owns GRND (GRND)
Which tracked institutional funds hold GRND, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GRND 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
32 tracked funds added or opened GRND while 45 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
GRND’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes GRND more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in GRND 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 166 tracked filers holding GRND, 96 increased or opened the position and 93 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 GRND 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 12
- VANGUARD CAPITAL MANAGEMENT LLC$17M
- JANE STREET GROUP, LLC$9M
- MIRABELLA FINANCIAL SERVICES LLP$8M
- HRT FINANCIAL LP$6M
- VANGUARD PORTFOLIO MANAGEMENT LLC$4M
- Emmett Investment Management, LP$4M
Full exits 14
- VANGUARD GROUP INC$24M
- Qube Research & Technologies Ltd$7M
- MILLENNIUM MANAGEMENT LLC$3M
- PRINCIPAL FINANCIAL GROUP INC$3M
- VOYA INVESTMENT MANAGEMENT LLC$3M
- TWO SIGMA ADVISERS, LP$2M
Largest adds
- CITADEL ADVISORS LLC$22M
- PERRY CREEK CAPITAL LP$16M
- DIMENSIONAL FUND ADVISORS LP$6M
- Tikvah Management LLC$5M
- BNP PARIBAS FINANCIAL MARKETS$5M
- BWCP, LP$4M
Largest trims
- NORGES BANK$21M
- BIT Capital GmbH$13M
- BlackRock, Inc.$12M
- BANK OF AMERICA CORP /DE/$9M
- Squarepoint Ops LLC$5M
- JACOBS LEVY EQUITY MANAGEMENT, INC$5M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 3,733,139 | $45M | 7.4% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 1,864,925 | $23M | 3.7% | 2026-Q1 |
| Quinn Opportunity Partners LLC added | 1,858,700 | $22M | 3.7% | 2026-Q1 |
| PERRY CREEK CAPITAL LP added | 1,779,134 | $22M | 3.5% | 2026-Q1 |
| MARSHALL WACE, LLP added | 1,567,080 | $19M | 3.1% | 2026-Q1 |
| BWCP, LP added | 1,565,451 | $19M | 3.1% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,406,976 | $17M | 2.8% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 1,396,122 | $17M | 2.8% | 2026-Q1 |
| Tikvah Management LLC added | 1,354,620 | $16M | 2.7% | 2026-Q1 |
| Blacksheep Fund Management Ltd | 1,241,080 | $15M | 2.5% | 2026-Q1 |
| STATE STREET CORP added | 1,184,728 | $14M | 2.4% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 868,197 | $10M | 1.7% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 767,751 | $9M | 1.5% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 759,445 | $9M | 1.5% | 2026-Q1 |
| Nuveen, LLC trimmed | 749,037 | $9M | 1.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 719,401 | $9M | 1.4% | 2026-Q1 |
| MIRABELLA FINANCIAL SERVICES LLP new | 667,200 | $8M | 1.3% | 2026-Q1 |
| MORGAN STANLEY trimmed | 615,654 | $7M | 1.2% | 2026-Q1 |
| Alberta Investment Management Corp added | 550,000 | $7M | 1.1% | 2026-Q1 |
| NORGES BANK trimmed | 357,168 | $6M | 1.0% | 2026-Q1 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. trimmed | 523,584 | $6M | 1.0% | 2026-Q1 |
| Squarepoint Ops LLC trimmed | 520,585 | $6M | 1.0% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 499,024 | $6M | 1.0% | 2026-Q1 |
| Fort Point Capital Partners LLC added | 497,500 | $6M | 1.0% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 465,983 | $6M | 0.9% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 474,264 | $6M | 0.9% | 2026-Q1 |
| HRT FINANCIAL LP added | 473,400 | $6M | 0.9% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 460,000 | $6M | 0.9% | 2026-Q1 |
| SPX Gestao de Recursos Ltda added | 455,800 | $6M | 0.9% | 2026-Q1 |
| BIT Capital GmbH trimmed | 417,800 | $5M | 0.8% | 2026-Q1 |
| UBS Group AG trimmed | 391,828 | $5M | 0.8% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 336,948 | $4M | 0.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 326,112 | $4M | 0.6% | 2026-Q1 |
| HC Advisors, LLC added | 315,288 | $4M | 0.6% | 2026-Q1 |
| Emmett Investment Management, LP added | 309,790 | $4M | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 299,951 | $4M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 286,183 | $3M | 0.6% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 246,000 | $3M | 0.5% | 2026-Q1 |
| Rangeley Capital, LLC added | 234,000 | $3M | 0.5% | 2026-Q1 |
| Jump Financial, LLC added | 226,700 | $3M | 0.4% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC new | 189,426 | $2M | 0.4% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 186,351 | $2M | 0.4% | 2026-Q1 |
| BARCLAYS PLC added | 173,677 | $2M | 0.3% | 2026-Q1 |
| CAPITAL FUND MANAGEMENT S.A. trimmed | 158,684 | $2M | 0.3% | 2026-Q1 |
| Aquatic Capital Management LLC added | 131,030 | $2M | 0.3% | 2026-Q1 |
| FMR LLC added | 127,065 | $2M | 0.3% | 2026-Q1 |
| XTX Topco Ltd added | 121,026 | $1M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 117,998 | $1M | 0.2% | 2026-Q1 |
| Bank of New York Mellon Corp added | 113,388 | $1M | 0.2% | 2026-Q1 |
| OCCUDO QUANTITATIVE STRATEGIES LP added | 95,941 | $1M | 0.2% | 2026-Q1 |
| Hudson Bay Capital Management LP trimmed | 103,519 | $1M | 0.2% | 2026-Q1 |
| Marble Bar Asset Management LLP added | 87,448 | $1M | 0.2% | 2026-Q1 |
| Vident Advisory, LLC added | 84,460 | $1M | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 83,520 | $1M | 0.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 81,906 | $990K | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 78,424 | $948K | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 1,744,512 | $24M | 3.9% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 979,714 | $22M | 3.7% | 2025-Q2 stale |
| ADAGE CAPITAL PARTNERS GP, L.L.C. new | 800,000 | $14M | 2.4% | 2025-Q1 stale |
| Sellaronda Global Management LP | 600,000 | $11M | 1.8% | 2025-Q1 stale |
| AXA Investment Managers S.A. new | 608,687 | $9M | 1.5% | 2025-Q3 stale |
| Capitolis Liquid Global Markets LLC new | 360,900 | $8M | 1.3% | 2025-Q2 stale |
| Qube Research & Technologies Ltd trimmed | 509,502 | $7M | 1.1% | 2025-Q4 stale |
| Skye Global Management LP trimmed | 254,000 | $6M | 0.9% | 2025-Q2 stale |
| MOORE CAPITAL MANAGEMENT, LP added | 322,102 | $5M | 0.8% | 2025-Q3 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND trimmed | 300,000 | $5M | 0.7% | 2025-Q3 stale |
| Trexquant Investment LP added | 224,931 | $4M | 0.7% | 2025-Q1 stale |
| Bienville Capital Management, LLC new | 250,911 | $4M | 0.6% | 2025-Q3 stale |
| Global IMC LLC trimmed | 165,274 | $4M | 0.6% | 2025-Q2 stale |
| NINE MASTS CAPITAL Ltd trimmed | 241,300 | $4M | 0.6% | 2025-Q3 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 235,648 | $4M | 0.6% | 2025-Q3 stale |
| Forge First Asset Management Inc. trimmed | 152,799 | $3M | 0.6% | 2025-Q2 stale |
| Woodline Partners LP | 151,330 | $3M | 0.6% | 2025-Q2 stale |
| MILLENNIUM MANAGEMENT LLC trimmed | 251,328 | $3M | 0.6% | 2025-Q4 stale |
| PRINCIPAL FINANCIAL GROUP INC added | 241,572 | $3M | 0.5% | 2025-Q4 stale |
| Anthracite Investment Company, Inc. | 140,985 | $3M | 0.5% | 2025-Q2 stale |
| LORD, ABBETT & CO. LLC trimmed | 208,784 | $3M | 0.5% | 2025-Q3 stale |
| Informed Momentum Co LLC trimmed | 124,377 | $3M | 0.5% | 2025-Q2 stale |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 205,687 | $3M | 0.5% | 2025-Q4 stale |
| D. E. Shaw & Co., Inc. added | 181,394 | $3M | 0.4% | 2025-Q3 stale |
| ALGERT GLOBAL LLC added | 98,790 | $2M | 0.4% | 2025-Q2 stale |
| Man Group plc added | 146,745 | $2M | 0.4% | 2025-Q3 stale |
| TWO SIGMA ADVISERS, LP trimmed | 149,248 | $2M | 0.3% | 2025-Q4 stale |
| Penserra Capital Management LLC added | 109,236 | $2M | 0.3% | 2025-Q1 stale |
| Point72 Asset Management, L.P. trimmed | 81,090 | $2M | 0.3% | 2025-Q2 stale |
| Allspring Global Investments Holdings, LLC added | 97,716 | $2M | 0.3% | 2025-Q1 stale |
| LOS ANGELES CAPITAL MANAGEMENT LLC added | 129,319 | $2M | 0.3% | 2025-Q4 stale |
| PICTON MAHONEY ASSET MANAGEMENT added | 118,264 | $2M | 0.3% | 2025-Q3 stale |
| Y-Intercept (Hong Kong) Ltd added | 115,393 | $2M | 0.3% | 2025-Q3 stale |
| J. Goldman & Co LP new | 68,000 | $2M | 0.3% | 2025-Q2 stale |
| DANSKE BANK A/S added | 77,418 | $1M | 0.2% | 2025-Q1 stale |
| Jefferies Financial Group Inc. added | 87,200 | $1M | 0.2% | 2025-Q3 stale |
| MAVERICK CAPITAL LTD added | 86,005 | $1M | 0.2% | 2025-Q3 stale |
| Graypoint LLC | 67,899 | $1M | 0.2% | 2025-Q1 stale |
| TWINBEECH CAPITAL LP new | 48,125 | $1M | 0.2% | 2025-Q2 stale |
| Voleon Capital Management LP trimmed | 67,723 | $1M | 0.2% | 2025-Q3 stale |
| SHAKER INVESTMENTS LLC/OH new | 43,700 | $992K | 0.2% | 2025-Q2 stale |
| Polymer Capital Management (US) LLC new | 72,146 | $977K | 0.2% | 2025-Q4 stale |
| SEI INVESTMENTS CO added | 42,070 | $955K | 0.2% | 2025-Q2 stale |
| Rakuten Investment Management, Inc. added | 6,536 | $938K | 0.2% | 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.