GRI
GRI Bio (GRI)
NASDAQ
$1.59+$0.17 (+11.97%)
Price as of Oct 22, 2026 7:57 PM EDT
  • $3.2M
    Market Cap
  • -97.52%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
HRT FINANCIAL LP
1.32%
28,784
+28,784 (+100.00%)
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
0.98%
21,368
+21,368 (+100.00%)
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
0.63%
13,869
-4,569 (-32.94%)
Jun 30, 2026
CITADEL ADVISORS LLC
0.61%
13,376
+13,376 (+100.00%)
Jun 30, 2026
MORGAN STANLEY
0.40%
8,737
+8,737 (+100.00%)
Jun 30, 2026
UBS GROUP AG
0.23%
4,920
-3,802 (-77.28%)
Jun 30, 2026
TOWER RESEARCH CAPITAL LLC (TRC)
0.11%
2,434
+1,374 (+56.45%)
Jun 30, 2026

Current Ownership Distribution

  • Other701,141 (32.07%)
  • Mutual Funds699,176 (31.98%)
  • Insiders663,981 (30.37%)
  • Institutions121,817 (5.57%)

Insider Transactions

  • 30.37% (663,981)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 0
    Number of InsiderSelling (last 12 months)
  • $0.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Rongen Roelof
Award
Sep 18, 2025
$0.00
23,605
$0.00
23,605
Baker David Charles
Award
Sep 18, 2025
$0.00
23,605
$0.00
23,605
SIMPSON CAMILLA V
Award
Sep 18, 2025
$0.00
23,605
$0.00
23,605
Hertz Walter Marc
Chief Executive Officer
Award
Sep 18, 2025
$0.00
103,067
$0.00
103,067
Szekeres David Leslie
Award
Sep 18, 2025
$0.00
39,897
$0.00
39,897
Chaturvedi Vipin
Chief Scientific Officer
Award
Sep 18, 2025
$0.00
43,222
$0.00
43,222
Baker David Charles
Award
Aug 26, 2025
$0.00
5,994
$0.00
5,994
Rongen Roelof
Award
Aug 26, 2025
$0.00
5,994
$0.00
5,994
Kelly Leanne M.
Chief Financial Officer
Award
Aug 26, 2025
$0.00
11,854
$0.00
11,854
Chaturvedi Vipin
Chief Scientific Officer
Award
Aug 26, 2025
$0.00
11,854
$0.00
11,854
Szekeres David Leslie
Award
Aug 26, 2025
$0.00
10,276
$0.00
10,276
SIMPSON CAMILLA V
Award
Aug 26, 2025
$0.00
5,994
$0.00
5,994
Hertz Walter Marc
Chief Executive Officer
Award
Aug 26, 2025
$0.00
26,688
$0.00
26,688
Rongen Roelof
Award
Aug 13, 2025
$0.00
4,527
$0.00
4,527
Rongen Roelof
Award
Jan 23, 2025
$20,774.65
30,297
$0.69
30,297
Rongen Roelof
Award
Jan 23, 2025
$20,774.65
30,297
$0.69
30,297
Baker David Charles
Award
Jan 23, 2025
$20,774.65
30,297
$0.69
30,297
Baker David Charles
Award
Jan 23, 2025
$20,774.65
30,297
$0.69
30,297
SIMPSON CAMILLA V
Award
Jan 23, 2025
$20,774.65
30,297
$0.69
30,297
SIMPSON CAMILLA V
Award
Jan 23, 2025
$20,774.65
30,297
$0.69
30,297
Szekeres David Leslie
Award
Jan 23, 2025
$35,613.20
51,937
$0.69
51,937
Chaturvedi Vipin
Chief Scientific Officer
Award
Jan 23, 2025
$29,703.84
43,319
$0.69
43,319
Hertz Walter Marc
Chief Executive Officer
Award
Jan 23, 2025
$88,955.86
129,730
$0.69
129,730
Kelly Leanne M.
Chief Financial Officer
Award
Jan 23, 2025
$29,703.84
43,319
$0.69
43,319
Kelly Leanne M.
Chief Financial Officer
Award
Jan 23, 2025
$29,703.84
43,319
$0.69
43,319
Hertz Walter Marc
Chief Executive Officer
Award
Jan 23, 2025
$88,955.86
129,730
$0.69
129,730