Calder Douglas W
SEC insider (Form 3/4/5 filer). CIK 0001510445. Director at ZEVRA THERAPEUTICS, INC. (ZVRA) and 1 other issuer. 3 reported Form 4/5 transactions since Sep 2024; latest on Jun 4, 2026. Located in BOSTON, MA.
Companies Calder Douglas W has filed insider reports for
- ZEVRA THERAPEUTICS, INC. (ZVRA): Director
- RENOVARO INC. (RENB): Director
Calder Douglas W
CIK: 0001510445
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)3 (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 (3 total)
- Jun 4, 2026ZVRA
ZEVRA THERAPEUTICS, INC.
AwardDirectStock Option (right to buy)
30K shares- - May 29, 2025ZVRA
ZEVRA THERAPEUTICS, INC.
AwardDirectStock Option (right to buy)
30K shares- - Nov 4, 2024RENB
RENOVARO INC.
AwardDirectOption to purchase shares of common stock
121K shares-
1-3 of 3 transactions