$BBLG

$0.38 -$0.02 (4.51%) Close

$BBLG Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 3.4M shares outstanding

Who owns BBLG?

By type of holder

Institutions 0.8% Insiders 0.0% Everyone else 99.2%

Concentration Top 5 holders own 0.8%

Citadel Advisors LLC 0.7% · Tower Research Capital LLC (TRC) 0.1%

Institutional ownership

0.8%

+0.6 pts vs last qtr

Institutional holders

0 vs last qtr

Net shares bought

+21.7K

by institutions in Q2 2026

New / sold out

1 / 1

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Citadel Advisors LLC NEW +23.9K

Biggest sellers in Q2 2026

Tower Research Capital LLC (TRC) −2.2K
UBS Group AG SOLD OUT −56

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Bone Biologics Corp in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+346.5%

+111.30% a year

Each share's claim on the business

−77.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $598K

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years7% Under 1 year93%

Quarterly turnover

295.9%

of institutional shares changed hands

Top 10 managers, median time held

3 quarters

Super Investors

Investment managers reporting BBLG on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
CA Citadel Advisors LLC	23.9K	0.70%	NEW	Q2 '26	0.0%
Shares held by quarter Peak holding23.9K (Q2'26) Change over 8 quarters+23.9K Share of the company0.700% Citadel Advisors LLC's full portfolio →
TR Tower Research Capital LLC (TRC)	2.0K	0.06%	−2.2K (−52.7%)	2025	0.0%
Shares held by quarter Peak holding4.1K (Q1'26) Change over 8 quarters+2.0K Share of the company0.060% Tower Research Capital LLC (TRC)'s full portfolio →

Citadel Advisors LLC

23.9K

% of company

0.70%

Change vs last qtr

NEW

Held since

Q2 '26

Tower Research Capital LLC (TRC)

2.0K

% of company

0.06%

Change vs last qtr

−2.2K (−52.7%)

Held since

2025

2 more super investors behind a free account

See every manager holding Bone Biologics Corp, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting BBLG on Form N-PORT; together they hold 0.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$10.3K	7.8K	0.28%	0.00%	May 31, 2026
FT Fidelity Total Market Index Fund Fidelity Concord Street Trust	$866	656	0.02%	0.00%	May 31, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$10.3K

% of company

0.28%

% of the fund

0.00%

As of

May 31, 2026

Fidelity Total Market Index Fund

Fidelity Concord Street Trust

Position value

$866

% of company

0.02%

% of the fund

0.00%

As of

May 31, 2026

1 more funds behind a free account

See every fund holding Bone Biologics Corp and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
FJ Frelick Jeff Insider	360	0.01%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.010% Frelick Jeff's insider activity →
WD Walsh Deina H Insider	313	0.01%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.010% Walsh Deina H's insider activity →

Frelick Jeff

Insider

360

% of company

0.01%

Change vs last qtr

—

Held since

—

Walsh Deina H

Insider

313

% of company

0.01%

Change vs last qtr

—

Held since

—

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