Mainstay Capital Management LLC Biogen Inc. Transaction History

Mainstay Capital Management LLC

$546 Million
Q3 2024

17 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2021 Nov 12, 2021	SELL	$282.99 - $369.05 $1.02 Million - $1.33 Million	-3,615 Closed	0 $0
Q2 2021 Aug 06, 2021	SELL	$259.0 - $414.71 $41,440 - $66,353	-160 Reduced 4.24%	3,615 $1.25 Million
Q1 2021 May 13, 2021	SELL	$242.95 - $284.63 $60,008 - $70,303	-247 Reduced 6.14%	3,775 $1.06 Million
Q4 2020 Mar 04, 2021	BUY	$236.26 - $355.63 $16,538 - $24,894	70 Added 1.77%	4,022 $985,000
Q3 2020 Nov 13, 2020	SELL	$264.77 - $305.71 $77,577 - $89,573	-293 Reduced 6.9%	3,952 $1.12 Million
Q2 2020 Jul 23, 2020	BUY	$258.66 - $342.55 $8,794 - $11,646	34 Added 0.81%	4,245 $1.14 Million
Q1 2020 Apr 23, 2020	SELL	$268.85 - $341.04 $111,841 - $141,872	-416 Reduced 8.99%	4,211 $1.27 Million
Q4 2019 Jan 21, 2020	SELL	$220.06 - $304.07 $28,607 - $39,529	-130 Reduced 2.73%	4,627 $1.37 Million
Q3 2019 Oct 16, 2019	BUY	$217.44 - $243.88 $78,713 - $88,284	362 Added 8.24%	4,757 $1.11 Million
Q2 2019 Aug 07, 2019	BUY	$219.29 - $241.72 $214,465 - $236,402	978 Added 28.62%	4,395 $1.03 Million
Q1 2019 Apr 23, 2019	SELL	$216.71 - $338.96 $101,853 - $159,311	-470 Reduced 12.09%	3,417 $807,000
Q4 2018 Feb 08, 2019	BUY	$278.5 - $352.75 $54,029 - $68,433	194 Added 5.25%	3,887 $1.16 Million
Q3 2018 Nov 13, 2018	BUY	$293.51 - $383.83 $161,430 - $211,106	550 Added 17.5%	3,693 $1.31 Million
Q2 2018 Aug 24, 2018	SELL	$257.52 - $306.91 $170 Million - $203 Million	-662,070 Reduced 99.53%	3,143 $912,000
Q2 2018 Aug 23, 2018	BUY	$257.52 - $306.91 $171 Million - $203 Million	662,120 Added 21407.05%	665,213 $2.54 Million
Q1 2018 May 10, 2018	BUY	$260.13 - $367.91 $170,125 - $240,613	654 Added 26.81%	3,093 $846,000
Q4 2017 Mar 28, 2018	BUY	$307.64 - $344.58 $750,333 - $840,430	2,439	2,439 $777,000

Others Institutions Holding BIIB

# of Institutions

1,037

Shares Held

126M

Call Options Held

1.13M

Put Options Held

1.43M

Vanguard Group Inc Valley Forge, PA

16.7M
Shares

$2.67 Billion
0.06% of portfolio
Primecap Management CO Pasadena, CA

16.3M
Shares

$2.61 Billion
2.37% of portfolio
Black Rock Inc. New York, NY

14.5M
Shares

$2.32 Billion
0.08% of portfolio
State Street Corp Boston, MA

7.34M
Shares

$1.17 Billion
0.06% of portfolio
Wellington Management Group LLP Boston, MA

5.13M
Shares

$820 Million
0.18% of portfolio

View Full List

About BIOGEN INC.

Ticker BIIB
Exchange NASDAQ
Sector Healthcare
Industry Drug Manufacturers—General
Shares Outstandng 144,000,992
Market Cap $23B
Description
Biogen Inc. discovers, develops, manufactures, and delivers therapies for treating neurological and neurodegenerative diseases. The company offers TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA for multiple sclerosis (MS); SPINRAZA for spinal muscular atrophy; and FUMADERM to treat plaque psoriasis. It also provides BENEPALI, an eta...

More about BIIB

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