Douglas W. Calder

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

Companies & Roles (2)

ZVRA

ZEVRA THERAPEUTICS, INC.

Director

RENB

RENOVARO INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (3 total)

ZVRA
ZEVRA THERAPEUTICS, INC.
Jun 4, 2026
Award(A)
Stock Option (right to buy)
Direct
30K shares-
ZVRA
ZEVRA THERAPEUTICS, INC.
May 29, 2025
Award(A)
Stock Option (right to buy)
Direct
30K shares-
RENB
RENOVARO INC.
Nov 4, 2024
Award(A)
Option to purchase shares of common stock
Direct
121K shares-

		Type	Shares	Price		Ownership
Jun 4, 2026	ZVRA ZEVRA THERAPEUTICS, INC.	Award(A) Stock Option (right to buy)	30,000	-	-	Direct
May 29, 2025	ZVRA ZEVRA THERAPEUTICS, INC.	Award(A) Stock Option (right to buy)	30,000	-	-	Direct
Nov 4, 2024	RENB RENOVARO INC.	Award(A) Option to purchase shares of common stock	120,968	-	-	Direct

1-3 of 3 transactions

About Calder Douglas W

Calder Douglas W (SEC CIK 0001510445) files insider reports with the SEC as Director of ZEVRA THERAPEUTICS, INC. (ZVRA) and Director of RENOVARO INC. (RENB).

Signal8 holds 4 ownership filings by Calder Douglas W (1 Form 3, 3 Form 4), filed between Oct 23, 2024 and Jun 18, 2026. Those filings report 3 transactions, from Nov 4, 2024 to Jun 4, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Calder Douglas W's filings is in BOSTON, MA.

Recent filings by Calder Douglas W

Jun 4, 2026: Grant or award of ZVRA derivative securities (Form 4, code A).
May 29, 2025: Grant or award of ZVRA derivative securities (Form 4, code A).
Nov 4, 2024: Grant or award of RENB derivative securities (Form 4, code A).

Other insiders filing for ZEVRA THERAPEUTICS, INC. (ZVRA)

McFarlane Neil F., President and CEO
Thompson Rahsaan, Chief Legal & Compliance
Watton Corey Michael, Director
FAVORITO TAMARA A, Director
Secor Alicia, Director
Anderson Thomas, Director

How to read Form 4 transaction codes