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$MGNX
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Company Executives

$MGNX Management Team

Mr. Eric Risser

President

Chief Executive Officer

Director

Age 52
Compensation $1.915M USD
Sex Male

Dr. Ezio Bonvini

Senior Vice President - Research

Chief Scientific Officer

Age 71
Compensation $2.290M USD
Sex Male

Mr. Jeffrey Peters

Senior Vice President

General Counsel

Corporate Compliance Officer

Age 54
Compensation -
Sex Male

Dr. Stephen Eck

Senior Vice President - Clinical Development

Chief Medical Officer

Age 70
Compensation $2.646M USD
Sex Male

Mr. Thomas Spitznagel

Senior Vice President - Technical Operations

Age 58
Compensation $1.879M USD
Sex Male

Mr. William Heiden

Independent Chairman of the Board

Age 65
Compensation $304.7K USD
Sex Male

Mr. James Karrels

Chief Financial Officer

Senior Vice President

Corporate Secretary

Age 58
Compensation $2.366M USD
Sex Male

Ms. Beth Smith

Vice President

Controller

Treasurer

Age 57
Compensation -
Sex Female

Board of Directors

From the proxy statement filed Apr 8, 2026
Directors
11
serving now
Independent
0 of 2
stated in the proxy; 9 not stated
Average tenure
10.9 years
from year joined
CEO also chairs the board
No
William Heiden
Director Age On board Independent Committees Other public boards 2025 pay Source
Scott Koenig
73 2001
25 years
 Not independent None stated None stated Not stated
Federica O'Brien
68 2021
5 years
 Not stated None stated TELA Bio, Inc. $110,477
Eric Risser
CEO
 53 Not stated Not independent None stated None stated Paid as CEO
Scott Jackson
61 2017
9 years
 Not stated None stated Spero Therapeutics, Inc. $81,905
Margaret A. Liu
69 2023
3 years
 Not stated None stated Ipsen $85,863
David Stump
76 2013
13 years
 Not stated None stated REGENXBIO, Inc. $95,863
Karen Ferrante
68 2017
9 years
 Not stated None stated Cogent Biosciences $85,863
William Heiden
Board chair
 66 Not stated Not stated None stated Atara Biotherapeutics, Inc. $145,030
Edward Hurwitz
62 2004
22 years
 Not stated None stated Dyne Therapeutics $85,863
Meenu Chhabra Karson
53 2023
3 years
 Not stated None stated None stated $80,217
Jay Siegel Leaving at the meeting
73 2017
9 years
 Not stated None stated None stated $106,280

Each director opens the passage of the proxy that names them. "Not stated" means the proxy does not say; it never means "no". Pay is the proxy's Director Compensation table; the CEO is paid as an executive.

Related-party transactions

No related-party transactions disclosed

The proxy filed Apr 8, 2026 states there were none.

Read it in the proxy

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