Adage Capital Partners Gp, L.L.C. Biogen Inc. Transaction History

Adage Capital Partners Gp, L.L.C.

$59.7 Billion
Q3 2025

A detailed history of Adage Capital Partners Gp, L.L.C. transactions in Biogen Inc. stock. As of the latest transaction made, Adage Capital Partners Gp, L.L.C. holds 332,132 shares of BIIB stock, worth $55.6 Million. This represents 0.08% of its overall portfolio holdings.

Number of Shares

332,132

Previous 247,937 33.96%

Holding current value

$55.6 Million

Previous $31.1 Million 49.42%

% of portfolio

0.08%

Previous 0.06%

31 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$122.68 - $148.84 $10.3 Million - $12.5 Million	84,195 Added 33.96%	332,132 $46.5 Million
Q2 2025 Aug 14, 2025	BUY	$113.38 - $135.49 $20.1 Million - $24 Million	177,170 Added 250.36%	247,937 $31.1 Million
Q1 2025 May 15, 2025	BUY	$133.43 - $153.27 $9.44 Million - $10.8 Million	70,767 New	70,767 $9.68 Million
Q3 2024 Nov 14, 2024	SELL	$189.07 - $236.8 $17.4 Million - $21.8 Million	-91,900 Reduced 66.74%	45,799 $8.88 Million
Q2 2024 Aug 14, 2024	SELL	$190.52 - $236.72 $21.7 Million - $27 Million	-113,883 Reduced 45.27%	137,699 $31.9 Million

Q1 2024 May 15, 2024	SELL	$212.02 - $267.71 $22.1 Million - $27.9 Million	-104,226 Reduced 29.29%	251,582 $54.2 Million
Q4 2023 Feb 14, 2024	BUY	$222.59 - $267.94 $65.6 Million - $79 Million	294,913 Added 484.3%	355,808 $92.1 Million
Q3 2023 Nov 14, 2023	SELL	$253.3 - $285.89 $86.4 Million - $97.5 Million	-341,161 Reduced 84.85%	60,895 $15.7 Million
Q2 2023 Aug 14, 2023	BUY	$275.25 - $318.06 $19.3 Million - $22.3 Million	70,033 Added 21.09%	402,056 $115 Million
Q1 2023 May 15, 2023	BUY	$256.56 - $292.34 $28.1 Million - $32 Million	109,424 Added 49.16%	332,023 $92.3 Million
Q4 2022 Feb 14, 2023	SELL	$252.44 - $306.72 $6.36 Million - $7.73 Million	-25,200 Reduced 10.17%	222,599 $61.6 Million
Q3 2022 Nov 14, 2022	BUY	$194.69 - $268.46 $18.6 Million - $25.6 Million	95,300 Added 62.49%	247,799 $66.2 Million
Q2 2022 Aug 15, 2022	BUY	$187.54 - $223.02 $25.1 Million - $29.9 Million	134,100 Added 728.84%	152,499 $31.1 Million
Q1 2022 May 16, 2022	SELL	$193.77 - $244.14 $31.6 Million - $39.8 Million	-163,100 Reduced 89.86%	18,399 $3.88 Million
Q4 2021 Feb 14, 2022	BUY	$223.92 - $287.77 $15.3 Million - $19.7 Million	68,400 Added 60.48%	181,499 $43.5 Million
Q3 2021 Nov 15, 2021	SELL	$282.99 - $369.05 $6.31 Million - $8.23 Million	-22,300 Reduced 16.47%	113,099 $32 Million
Q2 2021 Aug 16, 2021	SELL	$259.0 - $414.71 $9.48 Million - $15.2 Million	-36,588 Reduced 21.27%	135,399 $46.9 Million
Q1 2021 May 17, 2021	BUY	$242.95 - $284.63 $558,785 - $654,649	2,300 Added 1.36%	171,987 $48.1 Million
Q4 2020 Feb 16, 2021	SELL	$236.26 - $355.63 $1.7 Million - $2.56 Million	-7,193 Reduced 4.07%	169,687 $41.6 Million
Q3 2020 Nov 16, 2020	BUY	$264.77 - $305.71 $32.1 Million - $37.1 Million	121,290 Added 218.19%	176,880 $50.2 Million
Q2 2020 Aug 14, 2020	SELL	$258.66 - $342.55 $38.9 Million - $51.5 Million	-150,300 Reduced 73.0%	55,590 $14.9 Million
Q1 2020 May 15, 2020	SELL	$268.85 - $341.04 $755,468 - $958,322	-2,810 Reduced 1.35%	205,890 $65.1 Million
Q4 2019 Feb 14, 2020	BUY	$220.06 - $304.07 $45.9 Million - $63.5 Million	208,700 New	208,700 $61.9 Million
Q2 2019 Aug 14, 2019	SELL	$219.29 - $241.72 $25 Million - $27.6 Million	-113,976 Closed	0 $0
Q1 2019 May 15, 2019	SELL	$216.71 - $338.96 $28.9 Million - $45.2 Million	-133,326 Reduced 53.91%	113,976 $26.9 Million
Q4 2018 Feb 14, 2019	SELL	$278.5 - $352.75 $3.18 Million - $4.02 Million	-11,405 Reduced 4.41%	247,302 $74.4 Million
Q3 2018 Nov 14, 2018	SELL	$293.51 - $383.83 $6.31 Million - $8.25 Million	-21,490 Reduced 7.67%	258,707 $91.4 Million
Q2 2018 Aug 14, 2018	SELL	$257.52 - $306.91 $1.15 Million - $1.37 Million	-4,471 Reduced 1.57%	280,197 $81.3 Million
Q1 2018 May 15, 2018	SELL	$260.13 - $367.91 $3.9 Million - $5.51 Million	-14,975 Reduced 5.0%	284,668 $77.9 Million
Q4 2017 Feb 14, 2018	BUY	$307.64 - $344.58 $16.7 Million - $18.7 Million	54,274 Added 22.12%	299,643 $95.5 Million
Q3 2017 Nov 14, 2017	BUY	$281.15 - $329.69 $69 Million - $80.9 Million	245,369	245,369 $76.8 Million

Others Institutions Holding BIIB

# of Institutions

1,084

Shares Held

131M

Call Options Held

3.77M

Put Options Held

2.31M

View Full List

About BIOGEN INC.

Ticker BIIB
Exchange NASDAQ
Sector Healthcare
Industry Drug Manufacturers—General
Shares Outstandng 144,000,992
Market Cap $24.1B
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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Adage Capital Partners Gp, L.L.C. Biogen Inc. Transaction History