Xenetic BiosciencesXBIO

13F holders, Q1 2026 (March 31)
6holders −5
0new positions
6sold out
1famous investor
$2.68avg. 13F price*

At the end of Q1 2026, 6 institutions reported holding Xenetic Biosciences Inc. (XBIO) in their 13F filings, down 5 from Q4 2025. 0 opened new positions and 6 sold out. The largest holders were Renaissance Technologies ($368K), Geode Capital Management, LLC ($57K) and Vanguard Capital Management LLC ($18K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Xenetic Biosciences Inc.
CUSIP
984015602
Latest filing quarter
Q2 2026

History

Number of 13F holders

051015 Q1 2024: 7Q1 2024Q2 2024: 5Q2 2024Q3 2024: 9Q3 2024Q4 2024: 13Q4 2024Q1 2025: 13Q1 2025Q2 2025: 9Q2 2025Q3 2025: 10Q3 2025Q4 2025: 11Q4 2025Q1 2026: 6Q1 2026Q2 2026: 8Q2 2026

Total Exit/New Position Q4 2025 → Q1 2026

InstitutionsTotal Value
New Positions0$0
Exits6$65K

All 13F filers, Q4 2025 → Q1 2026: 7,860 shares bought and 74,265 shares sold, net −66,405 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 6 holders

Renaissance Technologies 0.00% Reduce -23.0% 137,440 $368K
Geode Capital Management, LLC 0.00% Add +57.9% 21,441 $57K
Vanguard Capital Management LLC 0.00% — 6,731 $18K
JTC Employer Solutions Trustee Ltd 0.00% No change 2,700 $7K
Tower Research Capital LLC (TRC) 0.00% Reduce -79.9% 806 $2K
Darwin Wealth Management, LLC 0.00% No change 2 $5

"% of holder's portfolio" is XBIO's weight in each manager's 13F, not the share of Xenetic Biosciences Inc. the manager owns.