GRI Institutional Ownership
Who owns GRI Bio, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 11 funds reported holding GRI at Jun 30, 2026, together owning 4.3% of the company.
- ▲7 buying vs 3 selling
- ▲Held by funds +3.0 pts
- ▲Funds holding +5
- ▲Superinvestors: 1 added, 0 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 11 | 6 | +83.3% |
| In funds' top 10 | 0 | 0 | – |
| 13F shares | 94K | 28K | +231.5% |
| Held by funds | 4.3% | 1.3% | +3.0 pts |
| New positions | 6 | 5 | +20.0% |
| Increased | 1 | 0 | – |
| Reduced | 2 | 1 | +100.0% |
| Sold out | 1 | 5 | −80.0% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in GRI
All superinvestors →
Who owns GRI
share of fund held shares- Index and passive funds37.7%
- Active managers and hedge funds47.7%
- Banks and brokers14.7%
- Pensions, insurers and other0.0%
The top 10 holders own 100.0% of all GRI shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
1 fund changed their positionTop holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Hrt Financial LP | 1.32% | 29K | $50K | +29K |
| 2 | Vanguard Capital Management LLC | 0.98% | 21K | $38K | +21K |
| 3 | Geode Capital Management, LLC | 0.63% | 14K | $25K | −4,569 |
| 4 | Citadel Advisors LLC | 0.61% | 13K | $24K | +13K |
| 5 | Morgan Stanley | 0.40% | 8,737 | $15K | +8,737 |
| 6 | UBS Group AG | 0.23% | 4,920 | $9K | −3,802 |
| 7 | Tower Research Capital LLC (TRC) | 0.11% | 2,434 | $4K | +1,374 |
| 8 | Barclays PLC | 0.00% | 83 | $147 | +83 |
| 9 | BlackRock, Inc. | 0.00% | 7 | $12 | 0 |
| 10 | Caitong International Asset Management Co., Ltd | 0.00% | 2 | $4 | +2 |
- Hrt Financial LP+29K sh+$50K
- Vanguard Capital Management LLC+21K sh+$38K
- Citadel Advisors LLC+13K sh+$24K
- Morgan Stanley+8,737 sh+$15K
- Tower Research Capital LLC (TRC)+1,374 sh+$2K
- Barclays PLC+83 sh+$147
- Caitong International Asset Management Co., Ltd+2 sh+$4
- Geode Capital Management, LLC−4,569 sh−$8K
- UBS Group AG−3,802 sh−$7K
- SBI Securities Co., Ltd.−4 sh−$9
GRI institutional ownership FAQ
Who owns the most GRI stock?
In Q2 2026 13F filings the largest holder of GRI was Hrt Financial LP, followed by Vanguard Capital Management LLC and Geode Capital Management, LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of GRI is owned by institutions?
Funds that file 13F reports held 4.3% of GRI's shares at Jun 30, 2026, compared with 1.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying GRI?
In Q2 2026, 7 funds bought GRI (6 of them new positions) and 3 sold (1 sold out completely). Among well known investors, 1 added and 0 cut. Our fund sentiment for GRI is strongly bullish.
What is GRI's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this GRI ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.