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Xenetic Biosciences, Inc.

XBIO
Healthcare|Biotechnology|US
$1.87
+0.01 (+0.31%)
Tangible Book / Share
$2.65
Cash / Share
$2.82

Ownership Breakdown

84.3%
Float
2.3M
Shares Outstanding
2.0M
Float Shares

Major Holders (2)

Combined: 12.0%

Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.

HolderType% of ClassSharesFiledFiling
Renaissance Technologies Holdings CorporationHolding company6.00%137,440May 14, 202613D/G
Renaissance Technologies LLCInvestment adviser6.00%137,440May 14, 202613D/G

Insider Trades (100)

Last 4 quarters: 140,000 acquired · 0 disposed
InsiderPositionDateTypeSharesPriceValueFiling
PARSLOW JAMES FInterim CEO and CFOApr 21, 2026AWARD100,000——Form 4
VINOGRADOV ALEXEY ANDREEVICHdirectorDec 31, 2025AWARD2,500$2.17$5.4KForm 4
Dastoor Firdaus J.directorDec 31, 2025AWARD2,500$2.17$5.4KForm 4
Kornberg Roger D.directorDec 31, 2025AWARD2,500$2.17$5.4KForm 4
Borisenko Grigory G.directorDec 31, 2025AWARD2,500$2.17$5.4KForm 4
Kornberg Roger D.directorDec 11, 2024AWARD2,500$4.24$10.6KForm 4
Borisenko Grigory G.directorDec 11, 2024AWARD2,500$4.24$10.6KForm 4
Dastoor Firdaus J.directorDec 11, 2024AWARD2,500$4.24$10.6KForm 4
VINOGRADOV ALEXEY ANDREEVICHdirectorDec 11, 2024AWARD2,500$4.24$10.6KForm 4
PARSLOW JAMES FInterim CEO and CFOJun 18, 2024AWARD20,000$3.99$79.8KForm 4
Mizrahy MoshedirectorDec 6, 2023AWARD2,500$4.29$10.7KForm 4
Mizrahy MoshedirectorDec 6, 2023DISPOSED0——Form 4
Lockshin CurtisChief Sciencific OfficerDec 11, 2023AWARD10,000$3.88$38.8KForm 4
EISENBERG JEFFREY Fdirector, officer: Chief Executive OfficerDec 11, 2023AWARD20,000$3.88$77.6KForm 4
PARSLOW JAMES FChief Financial OfficerDec 11, 2023AWARD10,000$3.88$38.8KForm 4
Kornberg Roger D.directorDec 6, 2023AWARD2,500$4.29$10.7KForm 4
Borisenko Grigory G.directorDec 6, 2023AWARD2,500$4.29$10.7KForm 4
Dastoor Firdaus J.directorDec 6, 2023AWARD2,500$4.29$10.7KForm 4
Callaway James EricdirectorDec 6, 2023AWARD2,500$4.29$10.7KForm 4
VINOGRADOV ALEXEY ANDREEVICHdirectorDec 6, 2023AWARD2,500$4.29$10.7KForm 4
Logal AdamdirectorDec 6, 2023AWARD2,500$4.29$10.7KForm 4
VINOGRADOV ALEXEY ANDREEVICHdirectorDec 7, 2022AWARD25,000——Form 4
Logal AdamdirectorDec 7, 2022AWARD25,000——Form 4
Kornberg Roger D.directorDec 7, 2022AWARD25,000——Form 4
Dastoor Firdaus J.directorDec 7, 2022AWARD25,000——Form 4
Callaway James EricdirectorDec 7, 2022AWARD25,000——Form 4
Borisenko Grigory G.directorDec 7, 2022AWARD25,000——Form 4
EISENBERG JEFFREY Fdirector, officer: Chief Executive OfficerMar 24, 2022AWARD100,000$1.12$112.0KForm 4
EISENBERG JEFFREY FChief Executive OfficerMar 24, 2022AWARD100,000——Form 4
PARSLOW JAMES FChief Financial OfficerMar 24, 2022AWARD50,000——Form 4
PARSLOW JAMES FChief Financial OfficerMar 24, 2022AWARD50,000$1.12$56.0KForm 4
Lockshin CurtisChief Sciencific OfficerMar 24, 2022AWARD50,000——Form 4
Lockshin CurtisChief Sciencific OfficerMar 24, 2022AWARD50,000$1.12$56.0KForm 4
Logal AdamdirectorDec 7, 2021AWARD25,000$1.44$36.0KForm 4
VINOGRADOV ALEXEY ANDREEVICHdirectorDec 7, 2021AWARD25,000$1.44$36.0KForm 4
Kornberg Roger D.directorDec 7, 2021AWARD25,000$1.44$36.0KForm 4
Kornberg Roger D.directorDec 7, 2021AWARD25,000$1.44$36.0KForm 4
Dastoor Firdaus J.directorDec 7, 2021AWARD25,000$1.44$36.0KForm 4
Callaway James EricdirectorDec 7, 2021AWARD25,000$1.44$36.0KForm 4
PARSLOW JAMES FChief Financial OfficerMar 18, 2021AWARD50,000$2.60$130.0KForm 4
EISENBERG JEFFREY Fdirector, officer: Chief Executive OfficerMar 18, 2021AWARD100,000$2.60$260.0KForm 4
Lockshin CurtisChief Sciencific OfficerMar 18, 2021AWARD50,000$2.60$130.0KForm 4
VINOGRADOV ALEXEY ANDREEVICHdirectorDec 4, 2020AWARD25,000$1.10$27.5KForm 4
Logal AdamdirectorDec 4, 2020AWARD25,000$1.10$27.5KForm 4
Kornberg Roger D.directorDec 4, 2020AWARD25,000$1.10$27.5KForm 4
Kornberg Roger D.directorDec 4, 2020AWARD25,000$1.10$27.5KForm 4
Dastoor Firdaus J.directorDec 4, 2020AWARD25,000$1.10$27.5KForm 4
Callaway James EricdirectorDec 4, 2020AWARD25,000$1.10$27.5KForm 4
Borisenko Grigory G.director: Sep 26, 2019OTHER0——Form 4
PARSLOW JAMES FChief Financial OfficerDec 4, 2019AWARD80,000$1.31$104.8KForm 4
PARSLOW JAMES FChief Financial OfficerDec 4, 2019AWARD80,000$1.31$104.8KForm 4
Logal AdamdirectorDec 4, 2019AWARD25,000$1.31$32.8KForm 4
Logal AdamdirectorDec 4, 2019AWARD25,000$1.31$32.8KForm 4
Lockshin CurtisChief Scientific OfficerDec 4, 2019AWARD90,000$1.31$117.9KForm 4
Lockshin CurtisChief Scientific OfficerDec 4, 2019AWARD90,000$1.31$117.9KForm 4
Kornberg Roger D.directorDec 4, 2019AWARD25,000$1.31$32.8KForm 4
Kornberg Roger D.directorDec 4, 2019AWARD25,000$1.31$32.8KForm 4
EISENBERG JEFFREY Fdirector, officer: Chief Executive OfficerDec 4, 2019AWARD230,000$1.31$301.3KForm 4
EISENBERG JEFFREY Fdirector, officer: Chief Executive OfficerDec 4, 2019AWARD230,000$1.31$301.3KForm 4
Dastoor Firdaus J.directorDec 4, 2019AWARD25,000$1.31$32.8KForm 4
Callaway James EricdirectorDec 4, 2019AWARD25,000$1.31$32.8KForm 4
VINOGRADOV ALEXEY ANDREEVICHdirectorSep 26, 2019AWARD25,000$1.40$34.9KForm 4
Borisenko Grigory G.directorSep 26, 2019AWARD25,000$1.40$34.9KForm 4
Borisenko Grigory G.director: Sep 26, 2019OTHER0——Form 4
VINOGRADOV ALEXEY ANDREEVICHdirectorJul 19, 2019DISPOSED0——Form 4
Genkin DmitrydirectorJul 19, 2019AWARD93,390——Form 4
Genkin DmitrydirectorMar 14, 2018DISPOSED29,452——Form 4
Callaway James EricdirectorNov 28, 2018AWARD25,000$3.05$76.3KForm 4
Dastoor Firdaus J.directorNov 28, 2018AWARD25,000$3.05$76.3KForm 4
Logal AdamdirectorNov 28, 2018AWARD25,000$3.05$76.3KForm 4
Logal AdamdirectorNov 28, 2018AWARD25,000$3.05$76.3KForm 4
Kornberg Roger D.directorNov 28, 2018AWARD25,000$3.05$76.3KForm 4
Kornberg Roger D.directorNov 28, 2018AWARD25,000$3.05$76.3KForm 4
Dastoor Firdaus J.directorNov 15, 2017AWARD25,000$2.18$54.5KForm 4
Kornberg Roger D.directorNov 15, 2017AWARD25,000$2.18$54.5KForm 4
Kornberg Roger D.directorNov 15, 2017AWARD25,000$2.18$54.5KForm 4
EISENBERG JEFFREY Fdirector, officer: CEOOct 26, 2017AWARD250,000$2.11$527.5KForm 4
EISENBERG JEFFREY Fdirector, officer: CEOOct 26, 2017AWARD250,000$2.11$527.5KForm 4
EISENBERG JEFFREY Fdirector, officer: CEOOct 26, 2017AWARD50,000——Form 4
EISENBERG JEFFREY Fdirector, officer: CEOOct 26, 2017AWARD50,000——Form 4
LLC Synbio10 percent ownerJan 23, 2014DISPOSED0——Form 4
LLC Synbio10 percent ownerJan 23, 2014DISPOSED0——Form 4
LLC Synbio10 percent ownerDec 31, 2014DISPOSED204,394$25.41$5.2MForm 4
PJSC Pharmsynthez10 percent ownerJan 23, 2014DISPOSED0——Form 4
PJSC Pharmsynthez10 percent ownerJan 23, 2014DISPOSED0——Form 4
PJSC Pharmsynthez10 percent ownerJan 23, 2014OTHER0——Form 4
PJSC Pharmsynthez10 percent ownerJan 23, 2014OTHER0——Form 4
PJSC Pharmsynthez10 percent ownerNov 7, 2016DISPOSED1,454,545$4.00$5.8MForm 4
PJSC Pharmsynthez10 percent ownerSep 9, 2016DISPOSED32,526$4.95$161.0KForm 4
PJSC Pharmsynthez10 percent ownerDec 31, 2014OTHER204,394$25.41$5.2MForm 4
PJSC Pharmsynthez10 percent ownerJul 1, 2016DISPOSED50,506——Form 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Logal AdamdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4
Callaway James EricdirectorOct 11, 2017AWARD6,250$2.95$18.4KForm 4