$XBIO

$1.85 +$0.13 (7.56%) Close

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

Ownership

13F as of Q2 2026 · 2.3M shares outstanding

Who owns XBIO?

By type of holder

Institutions 6.5% Insiders 4.3% Everyone else 89.2%

Concentration Top 9 holders own 10.8%

Renaissance Technologies LLC 5.0% · Parslow James F 4.3%

Institutional ownership

6.5%

-0.7 pts vs last qtr

Institutional holders

+2 vs last qtr

Net shares bought

−17.0K

by institutions in Q2 2026

New / sold out

2 / 0

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Vanguard Capital Management LLC +6.0K
SBI Securities Co., Ltd. NEW +1.0K

Biggest sellers in Q2 2026

Renaissance Technologies LLC −20.0K
Geode Capital Management, LLC −4.0K

Who is planning to sell?

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

Is your stake being diluted?

Diluted share count, FY2021–FY2025

+65.5%

+13.43% a year

Each share's claim on the business

−39.6%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $1.44M

over 5 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 years2% 1–3 years89% Under 1 year10%

Quarterly turnover

9.2%

of institutional shares changed hands

Top 10 managers, median time held

1.8 years

Super Investors

Investment managers reporting XBIO on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
RT Renaissance Technologies LLC	117.4K	5.01%	−20.0K (−14.6%)	2024	0.0%
Shares held by quarter Peak holding178.5K (Q4'25) Change over 8 quarters+101.6K Share of the company5.010% Renaissance Technologies LLC's full portfolio →
GC Geode Capital Management, LLC	17.4K	0.74%	−4.0K (−18.7%)	2023	0.0%
Shares held by quarter Peak holding21.4K (Q1'26) Change over 8 quarters+5.5K Share of the company0.740% Geode Capital Management, LLC's full portfolio →

Renaissance Technologies LLC

117.4K

% of company

5.01%

Change vs last qtr

−20.0K (−14.6%)

Held since

2024

Geode Capital Management, LLC

17.4K

% of company

0.74%

Change vs last qtr

−4.0K (−18.7%)

Held since

2023

6 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting XBIO on Form N-PORT; together they hold 1.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$43.7K	10.4K	0.45%	0.00%	August 31, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$36.9K	12.7K	0.54%	0.00%	June 30, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$43.7K

% of company

0.45%

% of the fund

0.00%

As of

August 31, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$36.9K

% of company

0.54%

% of the fund

0.00%

As of

June 30, 2026

2 more funds behind a free account

See every fund holding Xenetic Biosciences 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
PJ Parslow James F Insider	100.0K	4.27%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company4.270% Parslow James F's insider activity →

Parslow James F

Insider

100.0K

% of company

4.27%

Change vs last qtr

—

Held since

—

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