Menelas N Pangalos

Insider

First SEC filing: Jan. 7, 2025 · Latest: June 11, 2026

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 5 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 9, 2026	BIIB	M	2,370	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
June 9, 2026	BIIB	A	1,505	—	—	3,875 Direct	+63.50%	Acquired	(price as of 2026-08-21)
June 9, 2026	BIIB	M	2,370	—	—	2,370 Direct	—	Acquired	(price as of 2026-08-21)
June 4, 2026	ABSI	A	10,100	—	—	242,408	—	—	(price as of 2026-08-21)
June 17, 2025	BIIB	A	2,370	—	—	2,370 Direct	—	Acquired	(price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 9, 2026	BIIB	Restricted Stock Unit	Common Stock (2,370)	$0.00	June 17, 2026	2,370	Disposed
June 17, 2025	BIIB	Restricted Stock Unit	Common Stock (2,370)	$0.00	June 17, 2026	2,370	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Jan. 7, 2025	BIIB	Common Stock	0	Direct