Vault-13

XENETIC BIOSCIENCES INC XBIO

COM · Common Stock · CUSIP 984015602

Company in Lexington, United States

11 institutional holders +1 vs Q3 2025
228,794228.8k shares reported held*
$496.6kreported value*
4 new 3 added 1 reduced 3 sold out net bought ≈ $370.3k (+170.7k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $2.17.

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

051015Q2 23: 10Q3 23: 8Q4 23: 8Q1 24: 8Q2 24: 6Q3 24: 10Q4 24: 14Q1 25: 14Q2 25: 10Q3 25: 10Q4 25: 1111Q2 23Q4 23Q2 24Q4 24Q2 25Q4 25
Numbers
QuarterHolders
Q2 202310
Q3 20238
Q4 20238
Q1 20248
Q2 20246
Q3 202410
Q4 202414
Q1 202514
Q2 202510
Q3 202510
Q4 202511

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
10010Q1 24: 2 bought or addedQ1 24: 1 cut or sold outQ2 24: 2 bought or addedQ2 24: 5 cut or sold outQ2 24Q3 24: 6 bought or addedQ3 24: 2 cut or sold outQ4 24: 5 bought or addedQ4 24: 4 cut or sold outQ4 24Q1 25: 7 bought or addedQ1 25: 2 cut or sold outQ2 25: 2 bought or addedQ2 25: 6 cut or sold outQ2 25Q3 25: 4 bought or addedQ3 25: 2 cut or sold outQ4 25: 7 bought or addedQ4 25: 4 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 202421
Q2 202425
Q3 202462
Q4 202454
Q1 202572
Q2 202526
Q3 202542
Q4 202574

Biggest buyers

RENAISSANCE TECHNOLOGIES LLC Added +149,559+149.6k
CITADEL ADVISORS LLC New +14,879+14.9k
DRW Securities, LLC New +13,824+13.8k
Tower Research Capital LLC (TRC) New +4,012+4.0k
GEODE CAPITAL MANAGEMENT, LLC Added +2,897+2.9k
CITIGROUP INC New +1,241+1.2k
BANK OF AMERICA CORP /DE/ Added +6+6

Biggest sellers

Sachetta, LLC Sold out -15,259-15.3k
UBS Group AG Sold out -497-497
SBI Securities Co., Ltd. Sold out -5-5
MORGAN STANLEY Reduced -1-1

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
RENAISSANCE TECHNOLOGIES LLC 13G · institution -1.8 pts · filed 2026-05-14 6.0% -1.8 pts 137.4k 2026-05-14

Fell to 5% or below in the last year: MJL Manager LLC (0.0%, 2026-09-18)

Insider purchases and sales in Q4 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q4 2025.

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 178,509178.5k $387.4k $387.4k 0.00% Added +149.6k +149,559
2 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 14,87914.9k $32.3k $32.3k 0.00% New
3 DRW Securities, LLC 0.00% of their portfolio CHICAGO, IL 13,82413.8k $30.0k $30.0k 0.00% New
4 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 13,58113.6k $29.5k $29.5k 0.00% Added +2.9k +2,897
5 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 4,0124.0k $8.7k $8.7k 0.00% New
6 JTC Employer Solutions Trustee Ltd 0.00% of their portfolio ST HELIER, Y9 2,7002.7k $6.0k $6.0k 0.00% Unchanged
7 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 1,2411.2k $2.7k $2.7k 0.00% New
8 Alexis Investment Partners, LLC 0.00% of their portfolio MONTGOMERY, TX 2525 $54 $54 0.00% Unchanged
9 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 1818 $39 $39 0.00% Added +6 +6
10 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 33 $7 $7 0.00% Reduced -1 -1
11 Darwin Wealth Management, LLC 0.00% of their portfolio TAMPA, FL 22 $4 $4 0.00% Unchanged