| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| O'HEERON PETE | 18% | $7,229,517 | 6,951,459 | Pete O'Heeron | 31 Jan 2024 | |||
| Newlin Michael F. | 5.6% | $1,857,322 | 2,134,853 | Mike Newlin | 09 Aug 2024 | |||
| BlackRock, Inc. | 2% | -62% | $467,209 | -$644,162 | 750,898 | -58% | BlackRock, Inc. | 30 Jun 2025 |
As of 31 Dec 2025, 44 institutional investors reported holding 4,416,094 shares of FibroBiologics, Inc. - Common Stock (FBLG). This represents 12% of the company’s total 37,544,900 outstanding shares.
The largest institutional shareholders of FibroBiologics, Inc. - Common Stock (FBLG) together control 11% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 3.2% | 1,216,341 | -1.4% | 0% | $273,677 |
| BlackRock, Inc. | 1.3% | 482,401 | +9.7% | 0% | $108,492 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.93% | 348,761 | +21% | 0% | $78,470 |
| Cascade Financial Partners, LLC | 0.84% | 314,581 | +5.5% | 0.01% | $70,749 |
| MILLENNIUM MANAGEMENT LLC | 0.77% | 288,496 | -35% | 0% | $64,883 |
| RENAISSANCE TECHNOLOGIES LLC | 0.62% | 231,600 | +287% | 0% | $52,087 |
| JANE STREET GROUP, LLC | 0.4% | 149,763 | 0% | $33,682 | |
| AMG National Trust Bank | 0.37% | 138,960 | 0% | $31,266 | |
| UBS Group AG | 0.32% | 120,770 | +56% | 0% | $27,173 |
| STATE STREET CORP | 0.3% | 111,300 | 0% | 0% | $25,031 |
| Optivise Advisory Services LLC | 0.29% | 110,100 | 0% | 0.01% | $24,761 |
| Requisite Capital Management, LLC | 0.29% | 109,713 | 0% | 0% | $24,674 |
| &PARTNERS | 0.27% | 100,000 | 0% | 0% | $22,490 |
| Cerity Partners LLC | 0.25% | 93,919 | -25% | 0% | $21,122 |
| American Institute for Advanced Investment Management, LLP | 0.23% | 88,206 | 0% | 0.01% | $19,838 |
| SAXON INTERESTS, INC. | 0.15% | 57,000 | +38% | 0% | $12,819 |
| BANK OF AMERICA CORP /DE/ | 0.13% | 48,176 | +0% | 0% | $10,792 |
| NORTHERN TRUST CORP | 0.13% | 47,674 | 0% | 0% | $10,722 |
| RMR Wealth Builders | 0.1% | 38,360 | 0% | 0% | $8,627 |
| XTX Topco Ltd | 0.1% | 37,919 | 0% | $8,528 | |
| Concurrent Investment Advisors, LLC | 0.09% | 35,283 | 0% | 0% | $7,935 |
| DRW Securities, LLC | 0.09% | 33,348 | 0% | $7,499 | |
| Ethos Financial Group, LLC | 0.07% | 24,424 | 0% | 0% | $5,493 |
| RAYMOND JAMES FINANCIAL INC | 0.05% | 18,642 | 0% | 0% | $4,193 |
| Tower Research Capital LLC (TRC) | 0.05% | 18,109 | +6.8% | 0% | $4,073 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 4,416,094 | $993,769 | -$1,026,432 | $0.22 | 44 |
| 2025 Q3 | 5,392,707 | $3,279,712 | -$9,123 | $0.55 | 53 |
| 2025 Q2 | 5,921,766 | $3,689,450 | -$927,969 | $0.62 | 57 |
| 2025 Q1 | 6,398,618 | $5,758,906 | +$306,126 | $0.90 | 63 |
| 2024 Q4 | 5,925,974 | $11,853,211 | +$884,927 | $2.00 | 63 |
| 2024 Q3 | 5,458,643 | $16,806,221 | +$3,238,257 | $3.09 | 59 |
| 2024 Q2 | 3,440,451 | $17,167,348 | +$13,438,711 | $4.99 | 50 |
| 2024 Q1 | 479,357 | $5,180,994 | +$5,008,953 | $10.81 | 16 |