Kornberg Roger D.
SEC insider (Form 3/4/5 filer). CIK 0001444532. Director at Cocrystal Pharma, Inc. (COCP) and 1 other issuer. 4 reported Form 4/5 transactions since Sep 2024; latest on Jan 9, 2026. Located in FRAMINGHAM, MA.
Companies Kornberg Roger D. has filed insider reports for
- Cocrystal Pharma, Inc. (COCP): Director
- Xenetic Biosciences, Inc. (XBIO): Director
Kornberg Roger D.
CIK: 0001444532
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)4 (100.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (4 total)
- Jan 9, 2026COCP
Cocrystal Pharma, Inc.
AwardDirectStock Options (Right to Buy)
24.6K shares- - Dec 31, 2025XBIO
Xenetic Biosciences, Inc.
AwardDirectStock Options
2.5K shares- - Dec 11, 2024XBIO
Xenetic Biosciences, Inc.
AwardDirectStock Options
2.5K shares- - Oct 9, 2024COCP
Cocrystal Pharma, Inc.
AwardDirect28.1K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jan 9, 2026 |  COCP Cocrystal Pharma, Inc. | Award Stock Options (Right to Buy) | 24,615 | - | - | Direct |
| Dec 31, 2025 |  XBIO Xenetic Biosciences, Inc. | Award Stock Options | 2,500 | - | - | Direct |
| Dec 11, 2024 | XBIO Xenetic Biosciences, Inc. | Award Stock Options | 2,500 | - | - | Direct |
| Oct 9, 2024 | COCP Cocrystal Pharma, Inc. | Award | 28,109 | - | $0 | Direct |
1-4 of 4 transactions