Insiders / Kornberg Roger D.

Kornberg Roger D.

CIK 1444532personinsider

Companies

First seen

Jan 5, 2026

Last activity

Jan 13, 2026

Companies

Company	Role	Shares held	Peak held	Trades	Latest
Opko Health, Inc. · COCP	Director	—	24,615	1	—
Xenetic Biosciences, Inc. · XBIO	Director	—	2,500	1	—

2 positions · latest reported per filing

Company	Security	Shares	As of
Opko Health, Inc.	Stock Options (Right to Buy)Derivative	24,615	Jan 9, 2026
Xenetic Biosciences, Inc.	Stock OptionsDerivative	2,500	Dec 31, 2025

InsidersInstitutions

This person's insider trades (Form 4), across every company.

Date	Action	Company	Value	Shares Δ	Position after	Impact
Dec 31, 2025	Grant	XBIO Xenetic Biosciences, Inc. Stock Options	—	+3K	2,500 0.11% of shares	low
Jan 9, 2026	Grant	COCP Opko Health, Inc. Stock Options (Right to Buy)	—	+25K	24,615 0.13% of shares	low