$FBLG

$0.97 +$0.04 (3.76%) Close

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

Ownership

13F as of Q2 2026 · 6.7M shares outstanding

Who owns FBLG?

By type of holder

Institutions 4.3% Insiders 4.9% Everyone else 90.8%

Concentration Top 10 holders own 13.9%

Hamid Khoja 9.5% · Cascade Financial Partners, LLC 1.6%

Institutional ownership

4.3%

+1.0 pts vs last qtr

Institutional holders

-1 vs last qtr

Net shares bought

+64.3K

by institutions in Q2 2026

New / sold out

3 / 4

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Cascade Financial Partners, LLC +92.4K
Qube Research & Technologies Ltd NEW +24.3K

Biggest sellers in Q2 2026

Vanguard Capital Management LLC −39.9K
Renaissance Technologies LLC SOLD OUT −16.0K

Who is planning to sell?

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

Is your stake being diluted?

Diluted share count, FY2022–FY2025

+58.2%

+16.52% a year

Each share's claim on the business

−36.8%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $6.94M

over 4 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 years71% Under 1 year29%

Quarterly turnover

45.5%

of institutional shares changed hands

Top 10 managers, median time held

2 years

Super Investors

Investment managers reporting FBLG on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
CF Cascade Financial Partners, LLC	108.8K	1.63%	+92.4K (+562.5%)	2024	0.0%
Shares held by quarter Peak holding314.6K (Q4'25) Change over 8 quarters−193.8K Share of the company1.630% Cascade Financial Partners, LLC's full portfolio →
VC Vanguard Capital Management LLC	27.8K	0.42%	−39.9K (−59.0%)	2024	0.0%
Shares held by quarter Peak holding67.7K (Q1'26) Change over 8 quarters+27.8K Share of the company0.420% Vanguard Capital Management LLC's full portfolio →

Cascade Financial Partners, LLC

108.8K

% of company

1.63%

Change vs last qtr

+92.4K (+562.5%)

Held since

2024

Vanguard Capital Management LLC

27.8K

% of company

0.42%

Change vs last qtr

−39.9K (−59.0%)

Held since

2024

18 more super investors behind a free account

See every manager holding Fibrobiologics Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting FBLG on Form N-PORT; together they hold 1.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$52.7K	39.9K	0.60%	0.00%	March 31, 2026
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$41.7K	24.2K	0.36%	0.00%	August 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$52.7K

% of company

0.60%

% of the fund

0.00%

As of

March 31, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$41.7K

% of company

0.36%

% of the fund

0.00%

As of

August 31, 2026

7 more funds behind a free account

See every fund holding Fibrobiologics Inc 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
HK Hamid Khoja 5%+ holder 13D · 7.5%	630.0K	9.46%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company9.460% Disclosed stake13D · 7.5% View the 13D/G filing →
OP O'Heeron Pete Insider	22.9K	0.34%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.340% O'Heeron Pete's insider activity →

Hamid Khoja

5%+ holder13D · 7.5%

630.0K

% of company

9.46%

Change vs last qtr

—

Held since

—

O'Heeron Pete

Insider

22.9K

% of company

0.34%

Change vs last qtr

—

Held since

—

2 more holders behind a free account

See every insider and 5%+ holder of Fibrobiologics Inc.

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