BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

ATALANTA SOSNOFF CAPITAL, LLC's Holding History (CIK: 0000700529)

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

Q3 2018

Shares 2,400 Value ($000) $848 Avg Close $344.30 Range $288.13 - $388.67

Q1 2016

Shares 14,293 Value ($000) $3,721 Avg Close $264.15 Range $242.07 - $301.02

Q3 2015

Shares 38,835 Value ($000) $11,333 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 105,820 Value ($000) $42,745 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 137,605 Value ($000) $58,102 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 156,944 Value ($000) $53,275 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 288,387 Value ($000) $95,401 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 314,121 Value ($000) $99,045 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 306,870 Value ($000) $93,862 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 298,061 Value ($000) $83,329 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 181,496 Value ($000) $43,697 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 297,730 Value ($000) $64,072 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	2,400	$848	$344.30	$288.13 - $388.67
Q1 2016	14,293	$3,721	$264.15	$242.07 - $301.02
Q3 2015	38,835	$11,333	$330.23	$265.00 - $412.24
Q2 2015	105,820	$42,745	$401.33	$368.88 - $432.88
Q1 2015	137,605	$58,102	$394.14	$334.40 - $480.18
Q4 2014	156,944	$53,275	$323.51	$290.85 - $361.93
Q3 2014	288,387	$95,401	$329.72	$298.31 - $349.00
Q2 2014	314,121	$99,045	$300.97	$272.02 - $322.25
Q1 2014	306,870	$93,862	$317.43	$270.62 - $358.89
Q4 2013	298,061	$83,329	$258.65	$221.07 - $298.82
Q3 2013	181,496	$43,697	$223.81	$203.55 - $248.95
Q2 2013	297,730	$64,072	$213.68	$191.80 - $242.64