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; 16 institutions reported holding it in 13F filings for Q2 2026, worth $269.6K in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in FibroBiologics, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 55
- −4 vs. Q2 2025
- Shares held
- 5.39M
- −566.6K (−9.5%) vs. Q2 2025
- Total value
- $2.93M
- −$812.8K (−21.7%) vs. Q2 2025
- New holders
- 9
- 9 more added
- Sold out
- 13
- 20 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting FBLG on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 16 | $269.6K |
| Q1 2026 | 17 | $291.1K |
| Q4 2025 | 46 | $993.8K |
| Q3 2025 | 55 | $2.93M |
| Q2 2025 | 59 | $3.75M |
| Q1 2025 | 65 | $5.81M |
| Q4 2024 | 64 | $11.9M |
| Q3 2024 | 61 | $16.8M |
| Q2 2024 | 50 | $17.2M |
| Q1 2024 | 17 | $5.18M |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding FibroBiologics, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 1,233,781 | $673.6K | 0.00% | 00.0% | Unchanged |
| Yorkville Advisors Global, LP | 509,787 | $278.4K | 0.11% | −334,316−39.6% | Reduced |
| Millennium Management LLC | 446,208 | $243.7K | 0.00% | −34,437−7.2% | Reduced |
| BlackRock, Inc. | 439,773 | $240.2K | 0.00% | −311,125−41.4% | Reduced |
| Landscape Capital Management, L.L.C. | 350,000 | $191.2K | 0.01% | +350,000 | New |
| GTS Securities LLC | 308,661 | $168.5K | 0.01% | +308,661 | New |
| Cascade Financial Partners, LLC | 298,081 | $162.8K | 0.02% | +7,500+2.6% | Added |
| Geode Capital Management, LLC | 288,948 | $157.9K | 0.00% | 00.0% | Unchanged |
| Citadel Advisors LLC | 211,139 | $115.3K | 0.00% | −22,230−9.5% | Reduced |
| Cerity Partners LLC | 125,919 | $68.8K | 0.00% | −2,190−1.7% | Reduced |
| State Street Corp | 111,300 | $60.8K | 0.00% | −4,200−3.6% | Reduced |
| Optivise Advisory Services LLC | 110,100 | $60.1K | 0.04% | 00.0% | Unchanged |
| Requisite Capital Management, LLC | 109,713 | $59.9K | 0.01% | 00.0% | Unchanged |
| Wiley Bros.-Aintree Capital, LLC | 100,000 | $54.6K | 0.00% | +30,000+42.9% | Added |
| American Institute for Advanced Investment Management, LLP | 88,206 | $48.2K | 0.03% | 00.0% | Unchanged |
| UBS Group AG | 77,434 | $42.3K | 0.00% | −32,840−29.8% | Reduced |
| Renaissance Technologies LLC | 59,800 | $32.7K | 0.00% | +59,800 | New |
| Bank of America Corp | 48,175 | $26.3K | 0.00% | +425+0.9% | Added |
| Northern Trust Corp | 47,674 | $26.0K | 0.00% | −438−0.9% | Reduced |
| Saxon Interests, Inc. | 41,214 | $24.3K | 0.01% | +20,000+94.3% | Added |
| HRT Financial LP | 44,145 | $24.0K | 0.00% | +6,343+16.8% | Added |
| RMR Wealth Builders | 38,360 | $21.0K | 0.00% | 00.0% | Unchanged |
| Concurrent Investment Advisors, LLC | 35,283 | $19.3K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 29,966 | $16.4K | 0.00% | −4,126−12.1% | Reduced |
| Ethos Financial Group, LLC | 24,424 | $13.3K | 0.00% | −24,424−50.0% | Reduced |
| Raymond James Financial Inc | 18,642 | $10.2K | 0.00% | 00.0% | Unchanged |
| Cetera Investment Advisers | 18,006 | $9.84K | 0.00% | −1,000−5.3% | Reduced |
| LPL Financial LLC | 17,570 | $9.60K | 0.00% | +5,000+39.8% | Added |
| Tower Research Capital LLC (TRC) | 16,962 | $9.27K | 0.00% | +1,742+11.4% | Added |
| GWM Advisors LLC | 16,906 | $9.23K | 0.00% | −6,000−26.2% | Reduced |
| Flaharty Asset Management, LLC | 14,702 | $8.03K | 0.00% | 00.0% | Unchanged |
| Cahaba Wealth Management, Inc. | 14,702 | $8.03K | 0.00% | 00.0% | Unchanged |
| Skopos Labs, Inc. | 11,500 | $7.11K | 0.00% | 00.0% | Unchanged |
| Global Assets Advisory, LLC | 10,700 | $5.84K | 0.00% | +10,700 | New |
| Goldman Sachs Group Inc | 10,468 | $5.72K | 0.00% | −121,074−92.0% | Reduced |
| CWA Asset Management Group, LLC | 10,000 | $5.46K | 0.00% | +10,000 | New |
| Runnymede Capital Advisors, Inc. | 10,000 | $5.46K | 0.00% | +10,000 | New |
| Advisor Group Holdings, Inc. | 8,000 | $4.82K | 0.00% | 00.0% | Unchanged |
| Islay Capital Management, LLC | 3,391 | $1.85K | 0.00% | +2,941+653.6% | Added |
| Grove Bank & Trust | 2,000 | $1.09K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 2,010 | $1.00K | 0.00% | +114+6.0% | Added |
| BNP Paribas Arbitrage, SA | 1,306 | $713 | 0.00% | −412−24.0% | Reduced |
| FMR LLC | 1,200 | $655 | 0.00% | −2,096−63.6% | Reduced |
| Allworth Financial LP | 261 | $143 | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 200 | $109 | 0.00% | −525−72.4% | Reduced |
| EverSource Wealth Advisors, LLC | 52 | $28 | 0.00% | −70−57.4% | Reduced |
| Optiver Holding B.V. | 26 | $14 | 0.00% | +26 | New |
| Deutsche Bank AG | 18 | $10 | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 13 | $7 | 0.00% | −6,191−99.8% | Reduced |
| True Wealth Design, LLC | 10 | $6 | 0.00% | −182−94.8% | Reduced |
| Barclays PLC | 1 | $1 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 2 | $1 | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 2 | $1 | 0.00% | +2 | New |
| CWM, LLC | 259 | $0 | 0.00% | −3,361−92.8% | Reduced |
| Luminus Management LLC | 26,629 | – | – | +26,629 | New |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −106,100−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −96,110−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −78,618−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −59,539−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −52,217−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −45,945−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Point72 Asia (Singapore) Pte. Ltd. | 0 | $0 | 0.00% | −16,494−100.0% | Sold out |
| Hantz Financial Services, Inc. | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −1,844−100.0% | Sold out |
| Clearstead Advisors, LLC | 0 | $0 | 0.00% | −202−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −171−100.0% | Sold out |
| Essential Partners LLC | 0 | $0 | 0.00% | −12−100.0% | Sold out |