Company Executives

$SGMOQ Management Team

Name / Title	Age	Compensation	Sex	Social Media

Board of Directors

From the proxy statement filed Apr 30, 2025

Directors

serving now

Independent

8 of 9

stated in the proxy

Average tenure

6.4 years

from year joined

CEO also chairs the board

H. Stewart Parker

Director	Age	On board	Independent	Committees	Other public boards	2024 pay
Alexander D. Macrae CEO	62	2016 9 years	Not independent	None stated	None stated	Paid as CEO
Courtney Beers	55	2022 3 years	Independent	None stated	None stated	$93,450
Robert F. Carey	66	2016 9 years	Independent	None stated	Beyond Air, Inc.	$109,075
Kenneth J. Hillan	64	2020 5 years	Independent	None stated	Zymeworks, Inc.	$93,450
Margaret A. Horn	62	2022 3 years	Independent	None stated	None stated	$90,950
John H. Markels	59	2020 5 years	Independent	None stated	Arcturus Therapeutics Holdings Inc.	$102,825
James R. Meyers	60	2019 6 years	Independent	None stated	CytomX Therapeutics, Inc.	$105,950
H. Stewart Parker Board chair	69	2014 11 years	Independent	None stated	Codexis Inc.	$140,325
Karen L. Smith	57	2018 7 years	Independent	None stated	Aurinia Pharmaceuticals, Inc.	$102,825

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.

2 disclosed in the proxy filed Apr 30, 2025

Biogen

$225.0 million

February 2020

Stock purchase agreement under which BIMA purchased 24,420,157 shares of our common stock for an aggregate purchase price of $225.0 million, concurrent with the collaboration agreement.

With BIMA Open in proxy

Biogen

$125.0 million

Global licensing collaboration agreement for gene regulation therapies, under which Biogen paid an upfront license fee payment.

With Biogen MA Inc. and Biogen International GmbH Open in proxy

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Company Executives

$SGMOQ Management Team

Board of Directors

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