Who owns FibroBiologics, Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of FBLG from SEC Form 13F filings across 16 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 16 institutions disclosed 284,937 shares of FibroBiologics, Inc. worth $269,614 — about 4.5% of shares outstanding; the largest disclosed holder is Cascade Financial Partners, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
16
13F holders
$269,614
value, 2026 filers
4.5%
of shares outstanding (284,937 sh)
3
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of FBLG's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Cascade Financial Partners, LLC | 108,828 | $103,136 | 0.0% | 1.7% | +562.5% |
| 2 | Fund Evaluation Group, LLC | 51,794 | $49,085 | 0.0% | 0.8% | 0.0% |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | 30,299 | $28,722 | 0.0% | 0.5% | +2.3% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 27,769 | $26,325 | 0.0% | 0.4% | -59.0% |
| 5 | Qube Research & Technologies LtdNEW | 24,313 | $23,041 | 0.0% | 0.4% | new |
| 6 | BlackRock, Inc. | 18,238 | $17,284 | 0.0% | 0.3% | -26.0% |
| 7 | BARCLAYS PLCNEW | 7,243 | $6,864 | 0.0% | 0.1% | new |
| 8 | VANGUARD FIDUCIARY TRUST CO | 6,380 | $6,048 | 0.0% | 0.1% | 0.0% |
| 9 | Tower Research Capital LLC (TRC) | 4,728 | $4,481 | 0.0% | 0.1% | +927.8% |
| 10 | OSAIC HOLDINGS, INC. | 2,404 | $2,282 | 0.0% | 0% | +1461.0% |
| 11 | ROYAL BANK OF CANADA | 1,522 | $1,000 | 0.0% | 0% | +718.3% |
| 12 | UBS Group AG | 1,073 | $1,017 | 0.0% | 0% | -81.2% |
| 13 | ISLAY CAPITAL MANAGEMENT, LLC | 169 | $160 | 0.0% | 0% | 0.0% |
| 14 | Grove Bank & TrustNEW | 100 | $95 | 0.0% | 0% | new |
| 15 | BNP PARIBAS FINANCIAL MARKETS | 64 | $61 | 0.0% | 0% | -3.0% |
| 16 | Allworth Financial LP | 13 | $13 | 0.0% | 0% | 0.0% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.