GRI Bio, Inc.: which funds bought and sold
Institutions that bought and sold GRI Bio shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 7 institutions that filed 13F reports for both quarters added to or opened positions in GRI Bio, and 3 cut or closed them. Together they added a net 65K shares, +231.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 13K shares; index fund managers were net buyers of 17K shares (+91.1%). 6 opened a new position and 1 sold out entirely.
Bought, Q2 2026 7 institutions, 6 of them new holders Sold, Q2 2026 3 institutions, 1 of them sold out
Net change, all compared +65K shares (+231.5%)
Net change, active managers +13K shares (—), 1 bought, 0 sold
Buyers versus sellers
7 bought 2 3 sold
Active managers and hedge funds 1 bought · 0 sold · +13K
Index fund managers 1 bought · 1 sold · +17K
Other institutions 5 bought · 2 sold · +35K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| HRT Financial LP | +29K New position | 29K | $50,000 |
| Vanguard Capital Management LLC Index funds | +21K New position | 21K | $37,821 |
| Citadel Advisors LLC Hedge fund | +13K New position | 13K | $23,676 |
| Morgan Stanley | +8,737 New position | 8,737 | $15,464 |
| Tower Research Capital LLC (TRC) | +1,374 +129.6% | 2,434 | $4,308 |
| Barclays PLC | +83 New position | 83 | $147 |
| Caitong International Asset Management Co., Ltd | +2 New position | 2 | $4 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Citadel Advisors LLC Hedge fund | +13K New position | 13K | $23,676 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Geode Capital Management, LLC Index funds | −4,569 −24.8% | 14K | $24,547 |
| UBS Group AG | −3,802 −43.6% | 4,920 | $8,708 |
| Sbi Securities Co., Ltd. | −4 Sold out | 0 | — |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| None of the active managers on our list. | |||
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| HRT Financial LP | 29K | $50,000 |
| Vanguard Capital Management LLCIndex funds | 21K | $37,821 |
| Citadel Advisors LLCHedge fund | 13K | $23,676 |
| Morgan Stanley | 8,737 | $15,464 |
| Barclays PLC | 83 | $147 |
| Caitong International Asset Management Co., Ltd | 2 | $4 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Sbi Securities Co., Ltd. | 4 | $9 |
Who holds the shares
- Institutions reporting
- 11
- Ten largest holders
- 100.0% of 13F-reported shares
- Index fund managers
- 37.7% of 13F-reported shares
- Active managers and hedge funds
- 14.3% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 1 | 0 | 1 | 0 | +13K | — |
| Index fund managers | 1 | 1 | 1 | 0 | +17K | +91.1% |
| Other institutions | 5 | 2 | 4 | 1 | +35K | +359.4% |