Biogen Inc.

Ownership Transactions Reported by 28 Insiders

	Insiders	Shares	%	Avg Price	Total $
Buys	1	+455	17.5%	$222.54	+$101K
Sells	1	-2.14K	82.5%	$245.21	-$524K
Net	0	-1.68K	-64.9%		-$423K

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Report Date
Alexander J. Denner	Director	$163M			Jun 15, 2022
Michel Vounatsos	Chief Executive Officer, Director	$23.9M			Feb 18, 2022
Susan Alexander	EVP Chief Legal Officer	$11.3M			Feb 16, 2024
Stelios Papadopoulos	Director	$9.5M			Jun 15, 2022
Christopher Viehbacher	President and CEO, Director	$6.65M			Feb 7, 2024
Caroline Dorsa	Director	$6.16M			Jun 26, 2023
Stephen A. Sherwin	Director	$4.65M			Jun 26, 2023
Eric K. Rowinsky	Director	$4.59M	+$101K	+2.26%	Feb 15, 2024
Michael R. Mcdonnell	EVP, Chief Financial Officer	$4.25M			Feb 16, 2024
Chirfi Guindo	Head of Glob Prod Strat & Com	$4.14M			Feb 18, 2022
Richard Mulligan	Director	$3.74M			Jun 15, 2022
Nancy Leaming	Director	$3.41M			Jul 1, 2021
Ginger Gregory	EVP, Human Resources	$2.98M			Feb 16, 2024
Alfred Sandrock	Head of Research & Development	$2.52M			Jun 7, 2021
Rachid Izzar	Head of Global Product Strat.	$2.13M			Feb 16, 2024
Nicole Murphy	Head of Pharm Ops and Tech	$2.07M			Apr 1, 2024
Brian Posner	Director	$1.99M			Dec 31, 2022
Jesus B. Mantas	Director	$1.5M			Jun 26, 2023
Alphonse Galdes	EVP Pharmaceutical Oper & Tech	$1.5M			Jan 19, 2022
Robin Kramer	Chief Accounting Officer	$1.36M			Feb 16, 2024
William A. Hawkins	Director	$1.28M			Jun 26, 2023
Priya Singhal	Head of Development	$1.04M	-$524K	-33.5%	Apr 2, 2024
Jane Grogan	Head of Research	$998K			Feb 7, 2024
Maria C. Freire	Director	$770K			Jun 26, 2023
Adam Keeney	Head of Corporate Development	$543K			May 1, 2024
William D. /. Jones	Director	$532K			Jun 15, 2022
Susan Langer	Director	$352K			Jun 26, 2023
Monish D. Patolawala	Director				Jan 1, 2024

Insider	Class	Transaction	%	Value $	Price $	Shares	Shares Owned	Date	Ownership