FBLG
FIBROBIOLOGICS (FBLG)
NASDAQ
$1.05-$0.005 (-0.48%)
Price as of Jun 03, 2026 6:23 PM EDT
  • $6.0M
    Market Cap
  • -93.34%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
85.22%
1.8M
+29,602 (+1.66%)
Dec 31, 2024
VANGUARD GROUP INC
58.03%
1.2M
-17,440 (-1.43%)
Dec 31, 2025
BLACKROCK INC.
43.84%
918,964
+905,774 (+98.56%)
Jun 30, 2024
N/A
3.23%
67,665
+67,665 (+100.00%)
Mar 31, 2026
AQR CAPITAL MANAGEMENT LLC
2.49%
52,217
+19,990 (+38.28%)
Jun 30, 2025
FUND EVALUATION GROUP, LLC
2.47%
51,794
+51,794 (+100.00%)
Mar 31, 2026
NUVEEN ASSET MANAGEMENT, LLC
1.65%
34,540
0 (0.00%)
Dec 31, 2024

Current Ownership Distribution

  • Institutions28.9M (71.44%)
  • Mutual Funds11.2M (27.60%)
  • Insiders387,231 (0.96%)
  • Other0 (0.00%)

Insider Transactions

  • 0.96% (387,231)
    Current InsiderOwnership (%, shares)
  • 3
    Number of InsiderBuying (last 12 months)
  • $6.8M
    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
O'HEERON PETE
CHIEF EXECUTIVE OFFICER
Award
May 04, 2026
$0.00
92,410
$0.00
92,410
Khoja Hamid
Chief Scientific Officer
Award
May 04, 2026
$0.00
61,607
$0.00
61,607
O'HEERON PETE
CHIEF EXECUTIVE OFFICER
Buy
Mar 04, 2026
$6,005.96
15,872
$0.38
6.0M
Khoja Hamid
Chief Scientific Officer
Buy
Mar 04, 2026
$11,400.00
30,000
$0.38
61,250
O'HEERON PETE
CHIEF EXECUTIVE OFFICER
Buy
Mar 03, 2026
$7,372.82
18,200
$0.41
5.9M
O'HEERON PETE
CHIEF EXECUTIVE OFFICER
Buy
Mar 02, 2026
$6,152.08
17,428
$0.35
5.9M
GARCIA RUBEN A
General Counsel
Buy
Feb 27, 2026
$13,056.00
40,000
$0.33
180,000
Link Matthew
Award
Jun 12, 2025
$0.00
22,000
$0.00
22,000
HOFFMAN ROBERT
Award
Jun 12, 2025
$0.00
22,000
$0.00
22,000
Coen Stacy Ann
Award
Jun 12, 2025
$0.00
22,000
$0.00
22,000
Niklas Victoria Ninon Olivia
Award
Jun 12, 2025
$0.00
22,000
$0.00
22,000
Davis Jason
Chief Financial Officer
Award
Jun 09, 2025
$0.00
450,000
$0.00
450,000
O'HEERON PETE
CHIEF EXECUTIVE OFFICER
Award
Mar 26, 2025
$0.00
453,000
$0.00
453,000
GARCIA RUBEN A
General Counsel
Award
Mar 26, 2025
$0.00
189,000
$0.00
189,000
Khoja Hamid
CHIEF SCIENTIFIC OFFICER
Award
Mar 26, 2025
$0.00
189,000
$0.00
189,000
GARCIA RUBEN A
General Counsel
Award
Dec 27, 2024
$0.00
176,200
$0.00
176,200
O'HEERON PETE
Chief Executive Officer
Award
Dec 27, 2024
$0.00
406,339
$0.00
406,339
O'HEERON PETE
Chief Executive Officer
Gift
Dec 09, 2024
$0.00
100,000
$0.00
5.9M
O'HEERON PETE
Chief Executive Officer
Gift
Dec 03, 2024
$0.00
50,000
$0.00
6.0M