Groupama Asset Management’s Biogen BIIB Stock Holding History

Groupama Asset Management’s Portfolio BIIB Stock Details BIIB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$436K	Sell	2,017 -6,736	-77%	-$1.29M	0.01%	333
2026 Q1	$1.6M	Buy	8,753 +322	+4%	+$59.3K	0.02%	160
2025 Q4	$1.48M	Sell	8,431 -93	-1%	-$15.2K	0.02%	199
2025 Q3	$1.19M	Sell	8,524 -394	-4%	-$53.3K	0.02%	231
2025 Q2	$1.12M	Buy	8,918 +986	+12%	+$123K	0.02%	264
2025 Q1	$1.1M	Sell	7,932 -1,940	-20%	-$277K	0.02%	239
2024 Q4	$1.48M	Sell	9,872 -10,650	-52%	-$1.8M	0.03%	230
2024 Q3	$3.19M	Buy	20,522 +7,812	+61%	+$1.63M	0.08%	131
2024 Q2	$2.95M	Sell	12,710 -781	-6%	-$170K	0.04%	166
2024 Q1	$4.51M	Sell	13,491 -2,292	-15%	-$537K	0.08%	143
2023 Q4	$4.09M	Buy	+15,783	New	+$3.88M	0.11%	129

Other funds holding BIIB

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Groupama Asset Management's BIIB Position: Q2 2026 in Review

Groupama Asset Management reduced its Biogen (BIIB) stake by 77% in Q2 2026, selling an estimated $1.29M and leaving 2,017 shares worth $436K. The position accounts for 0.01% of the portfolio, ranked #333.

Groupama Asset Management first reported a position in BIIB in Q4 2023 and has held it in 11 quarters since. The position peaked at $4.51M in Q1 2024. 1,038 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Groupama Asset Management held 2,017 shares of Biogen worth $436K as of Q2 2026.
Groupama Asset Management sold 6,736 Biogen shares in Q2 2026, an estimated $1.29M.
Biogen made up 0.01% of Groupama Asset Management's portfolio in Q2 2026, its #333 holding.
Groupama Asset Management first reported a position in Biogen in Q4 2023 and has held it in 11 quarters since.
Groupama Asset Management's Biogen position peaked at $4.51M in Q1 2024.
1,038 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Groupama Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.