Xenetic Biosciences

XBIO · NASDAQ

$2.00+$0.07 (+3.63%)TodayMarket closed · Oct 20, 7:30 PM ET

Prev close $1.93

Who owns XBIO

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 26.7% of XBIO’s shares.

CLS Therapeutics, Ltd.6.4%
Renaissance Technologies LLC5.1%
Parslow (James F)4.4%
MJL Manager LLC4.1%
Next 6 largest institutions6.7%
All other shareholders73.3%

Top institutional holders of XBIO
Holder	Shares	% of shares	Change, last filing	Filed
CLS Therapeutics, Ltd.	147.50K	6.44%	+0	Mar 31, 2026
Renaissance Technologies LLC	117.44K	5.13%	−20.00K	Jun 30, 2026
Parslow (James F)	100.00K	4.37%	+100.00K	Apr 21, 2026
MJL Manager LLC	93.56K	4.09%	+93.56K	May 22, 2026
Genkin (Dmitry Dmitrievich)	68.46K	2.99%	+0	Mar 31, 2026
Liu (Michael)	33.18K	1.45%	+33.18K	May 22, 2026
Vinogradov (Alexey Andreevich)	18.68K	0.82%	+0	Mar 31, 2026
Geode Capital Management, L.L.C.	17.42K	0.76%	−4.02K	Jun 30, 2026
Vanguard Capital Management, LLC	12.68K	0.55%	+5.95K	Jun 30, 2026
JTC Employer Solutions Trusteee Ltd	2.70K	0.12%	+0	Jun 30, 2026

Largest mutual fund holders

Top mutual fund holders of XBIO
Holder	Shares	% of shares	Change, last filing	Filed
Vanguard Extended Market Index Fund	12.68K	0.55%	+0	Jul 31, 2026
Fidelity Extended Market Index Fund	10.49K	0.46%	+0	Jul 31, 2026
Fidelity Series Total Market Index Fund	1.39K	0.06%	+0	Jul 31, 2026
Fidelity NASDAQ Composite Index Fund	1.29K	0.06%	+0	Jul 31, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Insiders made no open-market buys or sales of XBIO in the last 6 months.

Latest XBIO insider transactions
Insider	Date	Type	Shares	Price	Value
PARSLOW JAMES F	Apr 21, 2026	Award	100.00K	—	—

Short interest

Settled Sep 30, 2026

Shares short: 12.87K
Days to cover: 1.00
% of shares outstanding: 0.56%
Average daily volume: 277.14K
Change since last report: −42.7%

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