Amundi

SEC CIK: 0001330387
Latest filing: Aug 26, 2026

SEC filings (opens in a new tab)

BIIB holding history

Biogen Inc. in every 13F filed by Amundi, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

BIIB overview All 13F holders of BIIB Full Q2 2026 holdings

Shares (Q2 2026): 1,516,831
Value: $327.7M
% of portfolio: 0.1%
Quarters held: 21; Since Q2 2021

Holdings of BIIB by Amundi, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	1,516,831	$327.7M	0.1%	+726,004+91.8%	Added	Holders
Q1 2026	790,827	$145.0M	<0.1%	+218,398+38.2%	Added	Holders
Q4 2025	572,429	$100.7M	<0.1%	−45,880−7.4%	Reduced	Holders
Q3 2025	618,309	$95.3M	<0.1%	+38,512+6.6%	Added	Holders
Q2 2025	579,797	$77.2M	<0.1%	−736,150−55.9%	Reduced	Holders
Q1 2025	1,315,947	$172.0M	0.1%	+98,957+8.1%	Added	Holders
Q4 2024	1,216,990	$183.5M	0.1%	+319,478+35.6%	Added	Holders
Q3 2024	897,512	$163.6M	0.1%	+212,692+31.1%	Added	Holders
Q2 2024	684,820	$153.8M	0.1%	−300,982−30.5%	Reduced	Holders
Q1 2024	985,802	$187.8M	0.1%	−215,904−18.0%	Reduced	Holders
Q4 2023	1,201,706	$307.4M	0.1%	+108,182+9.9%	Added	Holders
Q3 2023	1,093,524	$286.8M	0.1%	−93,789−7.9%	Reduced	Holders
Q2 2023	1,187,313	$338.9M	0.2%	+609,020+105.3%	Added	Holders
Q1 2023	578,293	$164.2M	0.1%	−240,340−29.4%	Reduced	Holders
Q4 2022	818,633	$233.3M	0.1%	+169,737+26.2%	Added	Holders
Q3 2022	648,896	$169.8M	0.1%	+241,061+59.1%	Added	Holders
Q2 2022	407,835	$87.4M	0.1%	+60,579+17.4%	Added	Holders
Q1 2022	347,256	$73.5M	<0.1%	−456,338−56.8%	Reduced	Holders
Q4 2021	803,594	$190.2M	0.1%	−51,409−6.0%	Reduced	Holders
Q3 2021	855,003	$242.0M	0.2%	+235,305+38.0%	Added	Holders
Q2 2021	619,698	$214.6M	0.1%	–	No prior filing	Holders