BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

First Long Island Investors, LLC's Holding History (CIK: 0001490429)

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

Q2 2021
Shares 793 Value ($000) $275 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 793 Value ($000) $222 Avg Close $269.69 Range $238.40 - $296.38
Q3 2020
Shares 793 Value ($000) $225 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 793 Value ($000) $212 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 829 Value ($000) $262 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 829 Value ($000) $246 Avg Close $277.46 Range $219.70 - $318.00
Q4 2018
Shares 831 Value ($000) $250 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 831 Value ($000) $294 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 831 Value ($000) $241 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 831 Value ($000) $228 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 836 Value ($000) $266 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 831 Value ($000) $260 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 831 Value ($000) $226 Avg Close $264.42 Range $244.28 - $291.90