Bone Biologics Corporation (BBLG) Ownership
BBLG ownership summary
as of October 17, 2026- Institutions
- 5.0% of shares outstanding
- Insiders
- 0.02% of shares outstanding
- Shares outstanding
- 2.8M
- Float
- 2.8M shares available to trade
- Short interest
- 1.80% 50K shares short
- Days to cover
- 0.17 short interest up 38.1% vs prior month
- Institutions 5.01%
- Insiders 0.02%
- Other investors 94.96%
BBLG top institutional holders
7 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Citadel Advisors Llc | 1.19% | 24K | $9,432 | +23,879 (0.0%) | June 30, 2026 |
| 2 | Tower Research Capital LLC | 0.10% | 1,953 | $771 | −2,173 (−52.7%) | June 30, 2026 |
| 3 | SBI Securities Co Ltd | 0.01% | 230 | $91 | — | June 30, 2026 |
| 4 | DRW Securities, LLC | 0.00% | — | — | −23,576 (−100.0%) | March 31, 2026 |
| 5 | Two Sigma Investments LLC | 0.00% | — | — | −11,083 (−100.0%) | March 31, 2026 |
| 6 | Bank of America Corp | 0.00% | — | — | −14 (−100.0%) | March 31, 2026 |
| 7 | UBS Group AG | 0.00% | — | — | −56 (−100.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 7, 1 holders added 24K shares and 5 cut 37K.
BBLG top mutual fund and ETF holders
2 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Extended Market Index | 0.39% | 7,810 | $3,085 | — | August 31, 2026 |
| 2 | Fidelity Total Market Index | 0.03% | 656 | $259 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
BBLG insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2023-09-13 | Deina H Walsh | Buy | $30.72 | 166 | $5,100 |
| 2023-09-11 | Jeff Frelick | Buy | $33.12 | 197 | $6,525 |
| 2023-09-06 | Deina H Walsh | Buy | $34.08 | 145 | $4,942 |
| 2023-08-31 | Jeff Frelick | Buy | $31.68 | 158 | $5,005 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
BBLG shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns BBLG
Institutional investors own 5.0% of Bone Biologics's shares and insiders 0.02%. The largest holder is Citadel Advisors Llc with 1.19% of the shares (24K), as of June 30, 2026. Among the top 7 institutions, 1 added shares and 5 reduced their stake in the latest filings. Short interest is 1.80% of the float, or 0.17 days of average trading volume. The share count fell 90.8% since 2014.
Related: BBLG analyst forecast, BBLG key metrics. See the BBLG stock overview for the latest quote and news.
BBLG ownership FAQ
Who owns the most Bone Biologics stock?
The largest shareholders of Bone Biologics are Citadel Advisors Llc (1.19%), Tower Research Capital LLC (0.10%), SBI Securities Co Ltd (0.01%), DRW Securities, LLC (0.00%), Two Sigma Investments LLC (0.00%).
What percentage of Bone Biologics is owned by institutions?
Institutions hold 5.0% of Bone Biologics's shares outstanding; insiders hold 0.02%.
Which funds own Bone Biologics?
The largest fund holders of Bone Biologics are Fidelity Extended Market Index (0.39%), Fidelity Total Market Index (0.03%).
What is Bone Biologics's short interest?
50K shares of Bone Biologics were sold short, 1.80% of the float; at the average daily volume it would take 0.17 days to cover.
Are insiders buying or selling Bone Biologics?
Of the latest 4 reported insider transactions in Bone Biologics (since August 31, 2023), 4 were purchases and 0 were sales.
How many shares of Bone Biologics are outstanding?
Bone Biologics has 2.8M shares outstanding, of which 2.8M are in the public float.