StockpollyBeta
Get App
Delisting riskPopularity #4,473
XBIO · NASDAQ · Biotechnology

Xenetic Biosciences (XBIO)

Develops DNase-based adjuncts for cancer therapy and armored CAR-T treatment.

$2.57
After hours0.00 (0.00%)
At close$2.57(−14.05%)

Something off on this page? Send us feedback.

13F · 13D/G · Form 4

Insiders4.27%100.0K shares
1 holder · as of Apr 23, 2026
Other95.73%2.24M shares
remainder

2.34M company shares as of Sep 22, 2026 · holders as of their latest filing

13F · 13D/G · Form 4

HolderStakeSharesDate
Renaissance Technologies LLCInstitution
5.87%137,440filed May 14, 2026
James F. ParslowInsiderofficer: Interim CEO and CFO
4.27%100,000filed Apr 23, 2026
Altium Growth Fund, LPInstitution
—9.80% of class, as filed—filed Jul 25, 2019
Empery Asset Management, LPInstitution
—9.99% of class, as filed—filed Mar 11, 2019
Heights Capital Management, Inc.Strategic
—8.90% of class, as filed—filed Aug 7, 2019
LLC Synbio1,2Strategic10 percent owner
——filed Oct 27, 2017
Pharmsynthez PJSC1,2Insider10 percent owner
——filed Oct 27, 2017
Alexey Andreevich Vinogradov3Insiderdirector
0.80%18,678filed Aug 5, 2019
Dmitry Genkin4Insiderdirector
0.40%9,360filed Jul 23, 2019
Michael Scott Maguire5Insiderdirector
0.03%616filed Jun 15, 2017
Jeffrey F. Eisenberg6Insiderdirector, officer: CEO
0.02%417filed Oct 30, 2017
Edward J. JR Benz7Insiderdirector
0.00%0filed Nov 30, 2016
James Eric Callaway8Insiderdirector
0.00%0filed Aug 29, 2017
Roger D. Kornberg9Insiderdirector
0.00%0filed Nov 21, 2016
Adam Logal10Insiderdirector
0.00%0filed Aug 22, 2017
Moshe Mizrahy11Insiderdirector
0.00%0filed Dec 18, 2023
  1. Last filed Oct 27, 2017; leaving the company requires no filing. Not in the bar.
  2. Filed after the 1-for-33 reverse split, Jun 6, 2016, with the count's adjustment unstated. Not in the bar.
  3. Last filed Aug 5, 2019; leaving the company requires no filing. Not in the bar.
  4. Last filed Jul 23, 2019; leaving the company requires no filing. Not in the bar.
  5. Last filed Jun 15, 2017; leaving the company requires no filing. Not in the bar.
  6. Last filed Oct 30, 2017; leaving the company requires no filing. Not in the bar.
  7. Last filed Nov 30, 2016; leaving the company requires no filing. Not in the bar.
  8. Last filed Aug 29, 2017; leaving the company requires no filing. Not in the bar.
  9. Last filed Nov 21, 2016; leaving the company requires no filing. Not in the bar.
  10. Last filed Aug 22, 2017; leaving the company requires no filing. Not in the bar.
  11. Last filed Dec 18, 2023; leaving the company requires no filing. Not in the bar.

13F

No 13F holders on record.

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Renaissance Technologies LLC6.00%137.4K13GMay 14, 2026

Form 4

Latest trades

No open-market trades in the last 12 months.

House and Senate disclosures

Not reported.