Tekla Capital Management LLC Biogen Inc. Transaction History

Tekla Capital Management LLC

$2.53 Billion
Q2 2023

A detailed history of Tekla Capital Management LLC transactions in Biogen Inc. stock. As of the latest transaction made, Tekla Capital Management LLC holds 247,943 shares of BIIB stock, worth $48.3 Million. This represents 2.79% of its overall portfolio holdings.

Number of Shares

247,943

Previous 240,926 2.91%

Holding current value

$48.3 Million

Previous $67 Million 5.44%

% of portfolio

2.79%

Previous 2.57%

22 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q2 2023 Aug 10, 2023	BUY	$275.25 - $318.06 $1.93 Million - $2.23 Million	7,017 Added 2.91%	247,943 $70.6 Million
Q1 2023 May 10, 2023	BUY	$256.56 - $292.34 $11.7 Million - $13.3 Million	45,496 Added 23.28%	240,926 $67 Million
Q4 2022 Feb 10, 2023	BUY	$252.44 - $306.72 $12.6 Million - $15.3 Million	49,991 Added 34.37%	195,430 $54.1 Million
Q3 2022 Nov 01, 2022	BUY	$194.69 - $268.46 $1.91 Million - $2.63 Million	9,800 Added 7.23%	145,439 $38.8 Million
Q4 2021 Feb 14, 2022	SELL	$223.92 - $287.77 $22 Million - $28.3 Million	-98,214 Reduced 42.0%	135,639 $32.5 Million
Q3 2021 Nov 12, 2021	BUY	$282.99 - $369.05 $7 Million - $9.13 Million	24,729 Added 11.83%	233,853 $66.2 Million
Q2 2021 Aug 13, 2021	SELL	$259.0 - $414.71 $9.77 Million - $15.6 Million	-37,720 Reduced 15.28%	209,124 $72.4 Million
Q4 2020 Feb 12, 2021	BUY	$236.26 - $355.63 $7.82 Million - $11.8 Million	33,091 Added 15.48%	246,844 $60.4 Million
Q3 2020 Nov 13, 2020	SELL	$264.77 - $305.71 $5.25 Million - $6.07 Million	-19,846 Reduced 8.5%	213,753 $60.6 Million
Q2 2020 Aug 13, 2020	SELL	$258.66 - $342.55 $25.6 Million - $34 Million	-99,136 Reduced 29.79%	233,599 $62.5 Million
Q1 2020 May 14, 2020	BUY	$268.85 - $341.04 $12.8 Million - $16.2 Million	47,609 Added 16.7%	332,735 $105 Million
Q4 2019 Feb 13, 2020	BUY	$220.06 - $304.07 $5.98 Million - $8.27 Million	27,187 Added 10.54%	285,126 $84.6 Million
Q3 2019 Nov 13, 2019	BUY	$217.44 - $243.88 $7.23 Million - $8.11 Million	33,249 Added 14.8%	257,939 $60.1 Million
Q2 2019 Aug 14, 2019	SELL	$219.29 - $241.72 $19.6 Million - $21.7 Million	-89,588 Reduced 28.51%	224,690 $52.5 Million
Q1 2019 May 14, 2019	SELL	$216.71 - $338.96 $17.5 Million - $27.3 Million	-80,624 Reduced 20.42%	314,278 $74.3 Million
Q4 2018 Feb 13, 2019	BUY	$278.5 - $352.75 $974,750 - $1.23 Million	3,500 Added 0.89%	394,902 $119 Million
Q3 2018 Nov 13, 2018	SELL	$293.51 - $383.83 $3.68 Million - $4.82 Million	-12,553 Reduced 3.11%	391,402 $138 Million
Q2 2018 Aug 13, 2018	BUY	$257.52 - $306.91 $6.5 Million - $7.75 Million	25,252 Added 6.67%	403,955 $117 Million
Q1 2018 May 14, 2018	SELL	$260.13 - $367.91 $17.4 Million - $24.6 Million	-66,904 Reduced 15.01%	378,703 $104 Million
Q4 2017 Feb 14, 2018	SELL	$307.64 - $344.58 $13.5 Million - $15.2 Million	-43,997 Reduced 8.99%	445,607 $142 Million
Q3 2017 Nov 13, 2017	SELL	$281.15 - $329.69 $11.3 Million - $13.2 Million	-40,170 Reduced 7.58%	489,604 $153 Million
Q2 2017 Aug 14, 2017	BUY	N/A	529,774	529,774 $144 Million

Others Institutions Holding BIIB

# of Institutions

1,050

Shares Held

128M

Call Options Held

1.22M

Put Options Held

1.4M

View Full List

About BIOGEN INC.

Ticker BIIB
Exchange NASDAQ
Sector Healthcare
Industry Drug Manufacturers—General
Shares Outstandng 144,000,992
Market Cap $28B
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...

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Tekla Capital Management LLC Biogen Inc. Transaction History