FibroBiologics, Inc.
FBLG- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001958777
No open-market purchases or sales by FibroBiologics, Inc. insiders were filed in the last 90 days; 17 institutions reported holding it in 13F filings for Q2 2026, worth $269.7K in total; no superinvestor holds it.
Key figures
- Market capClose on Nov 11, 2026
- $6.63M
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, −1 vs. previous quarter
- 17
- 13F valueReported value at the end of Q2 2026
- $269.7K
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- –
- No comparable prior period
- Net income, FY2025
- -$18.6M
- No comparable prior period
- Free cash flow, FY2025
- -$16.7M
- No comparable prior period
- Revenue, Q2 FY2026
- –
- No comparable prior period
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 334.1K
- Shares sold short
- Change
- +3.57K
- +1.1% vs. previous
- Days to cover
- 3.12
- At average daily volume
Superinvestors holding FBLG, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding FBLG at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by FibroBiologics, Inc. insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 5, 2026 (view filing)8:00 AM ET | Mar 4 | 1 day | Khoja HamidChief Scientific Officer | PPurchase | +30.0K | $0.38 | +$11.4K | +96.0%61.3K after | |
| Mar 4, 2026 (view filing)5:50 PM ET | Mar 2-4 | 2 days | O'Heeron PeteCHIEF EXECUTIVE OFFICER | PPurchase | +51.5K | $0.3792 | +$19.5K | +0.9%5.96M after | 3 lots |
| Mar 3, 2026 (view filing)8:00 AM ET | Mar 2 | 1 day | Davis JasonChief Financial Officer | PPurchase | +70.0K | $0.4139 | +$29.0K | New position70.0K after | |
| Mar 2, 2026 (view filing)9:15 AM ET | Feb 27 | 3 days | Garcia Ruben AGeneral Counsel | PPurchase | +40.0K | $0.3264 | +$13.1K | +28.6%180.0K after | |
| Dec 12, 2025 (view filing)7:16 AM ET | Dec 11 | 1 day | Garcia Ruben AGeneral Counsel | PPurchase | +140.0K | $0.34 | +$47.6K | New position140.0K after | |
| May 27, 2025 (view filing) | May 27 | Same day | Khoja HamidChief Scientific Officer | PPurchase | +20.0K | $0.84 | +$16.8K | +177.8%31.3K after | |
| Aug 12, 2024 (view filing) | Aug 12 | Same day | O'Heeron PeteChief Executive Officer | PPurchase | +8.50K | $1.91 | +$16.2K | +0.1%6.06M after | |
| Aug 12, 2024 (view filing) | Aug 12 | Same day | Khoja HamidChief Scientific Officer | PPurchase | +10.0K | $1.90 | +$19.0K | +800.0%11.3K after |
Top 10 13F holders, Q2 2026
See all 17 holdersThe largest institutional positions in FibroBiologics, Inc. at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cascade Financial Partners, LLC | 108,828 | $103.1K | 0.01% | +92,400+562.5% | Added |
| Fund Evaluation Group, LLC | 51,794 | $49.1K | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 30,299 | $28.7K | 0.00% | +690+2.3% | Added |
| Vanguard Capital Management LLC | 27,769 | $26.3K | 0.00% | −39,896−59.0% | Reduced |
| Qube Research & Technologies Ltd | 24,313 | $23.0K | 0.00% | +24,313 | New |
| BlackRock, Inc. | 18,238 | $17.3K | 0.00% | −6,409−26.0% | Reduced |
| Barclays PLC | 7,243 | $6.86K | 0.00% | +7,243 | New |
| Vanguard Fiduciary Trust Co | 6,380 | $6.05K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 4,728 | $4.48K | 0.00% | +4,268+927.8% | Added |
| Advisor Group Holdings, Inc. | 2,404 | $2.28K | 0.00% | +2,250+1,461.0% | Added |
Holders of 5% or more of FBLG
See all 4 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of FibroBiologics, Inc..
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| O'Heeron Pete | 13G | 18.20%6.95M shares | New | Feb 12, 20251 filing | Feb 12, 2025 | SEC |
| Armistice Capital, LLC | 13G | 9.99%739.0K shares | New | Aug 14, 20261 filing | Aug 14, 2026 | SEC |
| Khoja Hamid | 13D | 7.50%630.0K shares | New | Sep 17, 20261 filing | Sep 17, 2026 | SEC |
| Newlin Michael F. | 13G | 5.58%2.13M shares | New | Jun 6, 20251 filing | Jun 6, 2025 | SEC |