Mark Pruzanski

CIK: 0001559569

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)6 (60.0%)

Compensation grants

Other (G, F, J, C, D, …)4 (40.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

Equillium, Inc.

Director

Discretionary Trading P&L

Holdings

Transaction History (10 total)

EQ
Equillium, Inc.
May 28, 2026
Award(A)
Director Stock Option (right to buy)
Direct
70K shares-
EQ
Equillium, Inc.
May 21, 2025
Award(A)
Director Stock Option (right to buy)
Direct
20K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Disposition(D)
Director Stock Option (right to buy)
Direct
12K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Award(A)
Director Stock Option (right to buy)
Direct
24K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Disposition(D)
Director Stock Option (right to buy)
Direct
24K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Award(A)
Director Stock Option (right to buy)
Direct
20.8K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Disposition(D)
Director Stock Option (right to buy)
Direct
20.8K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Award(A)
Director Stock Option (right to buy)
Direct
20K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Disposition(D)
Director Stock Option (right to buy)
Direct
20K shares-
EQ
Equillium, Inc.
Feb 14, 2025
Award(A)
Director Stock Option (right to buy)
Direct
12K shares-

		Type	Shares	Price		Ownership
May 28, 2026	EQ Equillium, Inc.	Award(A) Director Stock Option (right to buy)	70,000	-	-	Direct
May 21, 2025	EQ Equillium, Inc.	Award(A) Director Stock Option (right to buy)	20,000	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Disposition(D) Director Stock Option (right to buy)	12,000	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Award(A) Director Stock Option (right to buy)	24,000	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Disposition(D) Director Stock Option (right to buy)	24,000	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Award(A) Director Stock Option (right to buy)	20,770	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Disposition(D) Director Stock Option (right to buy)	20,770	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Award(A) Director Stock Option (right to buy)	20,000	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Disposition(D) Director Stock Option (right to buy)	20,000	-	-	Direct
Feb 14, 2025	EQ Equillium, Inc.	Award(A) Director Stock Option (right to buy)	12,000	-	-	Direct

1-10 of 10 transactions

About Pruzanski Mark

Pruzanski Mark (SEC CIK 0001559569) files insider reports with the SEC as Director of Equillium, Inc. (EQ).

Signal8 holds 3 ownership filings by Pruzanski Mark, all Form 4s, filed between Feb 19, 2025 and May 29, 2026. Those filings report 10 transactions, from Feb 14, 2025 to May 28, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Pruzanski Mark's filings is in LA JOLLA, CA.

Recent filings by Pruzanski Mark

May 28, 2026: Grant or award of EQ derivative securities (Form 4, code A).
May 21, 2025: Grant or award of EQ derivative securities (Form 4, code A).
Feb 14, 2025: Disposition to issuer transaction of EQ derivative securities (Form 4, code D).
Feb 14, 2025: Grant or award of EQ derivative securities (Form 4, code A).
Feb 14, 2025: Disposition to issuer transaction of EQ derivative securities (Form 4, code D).

Other insiders filing for Equillium, Inc. (EQ)

Zedelmayer Christine, Sr. Vice President and COO
Connelly Stephen, President and CSO
Tom Penny, Principal Accounting Officer
DEMSKI MARTHA J, Director
BRADBURY DANIEL, EXECUTIVE CHAIRMAN
McDermott Charles Douglas, Director

How to read Form 4 transaction codes