BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

PURA VIDA INVESTMENTS, LLC's Holding History (CIK: 0001590144)

Note: Option positions (PUT/CALL) are excluded.

Q4 2022

Shares 62,720 Value ($000) $17,368 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 5,000 Value ($000) $1,335 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 101,711 Value ($000) $20,743 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 147,135 Value ($000) $30,987 Avg Close $217.46 Range $192.67 - $249.00

Q1 2016

Shares 7,500 Value ($000) $1,952 Avg Close $264.15 Range $242.07 - $301.02

Q2 2015

Shares 9,250 Value ($000) $2,949 Avg Close $401.33 Range $368.88 - $432.88

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2022	62,720	$17,368	$282.44	$250.31 - $311.88
Q3 2022	5,000	$1,335	$212.38	$193.65 - $283.44
Q2 2022	101,711	$20,743	$204.43	$187.16 - $225.50
Q1 2022	147,135	$30,987	$217.46	$192.67 - $249.00
Q1 2016	7,500	$1,952	$264.15	$242.07 - $301.02
Q2 2015	9,250	$2,949	$401.33	$368.88 - $432.88