ARGA Investment Management’s Biogen BIIB Stock Holding History

ARGA Investment 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
2025 Q3	–	Sell	-4,133	Closed	-$519K	–	118
2025 Q2	$519K	Hold	4,133	–	–	0.01%	96
2025 Q1	$566K	Buy	4,133 +601	+17%	+$85.9K	0.02%	94
2024 Q4	$540K	Buy	3,532 +910	+35%	+$153K	0.02%	97
2024 Q3	$508K	Hold	2,622	–	–	0.02%	107
2024 Q2	$608K	Hold	2,622	–	–	0.02%	104
2024 Q1	$565K	Hold	2,622	–	–	0.02%	110
2023 Q4	$678K	Hold	2,622	–	–	0.02%	102
2023 Q3	$674K	Hold	2,622	–	–	0.03%	72
2023 Q2	$747K	Hold	2,622	–	–	0.03%	69
2023 Q1	$729K	Hold	2,622	–	–	0.03%	68
2022 Q4	$726K	Hold	2,622	–	–	0.03%	63
2022 Q3	$700K	Hold	2,622	–	–	0.04%	57
2022 Q2	$535K	Hold	2,622	–	–	0.03%	65
2022 Q1	$552K	Buy	2,622 +496	+23%	+$108K	0.03%	65
2021 Q4	$510K	Buy	+2,126	New	+$547K	0.03%	67
2021 Q2	–	Sell	-4,455	Closed	-$1.25M	–	71
2021 Q1	$1.25M	Buy	4,455 +614	+16%	+$166K	0.09%	45
2020 Q4	$941K	Buy	3,841 +2,594	+208%	+$669K	0.06%	61
2020 Q3	$354K	Sell	1,247 -169	-12%	-$47.1K	0.03%	72
2020 Q2	$379K	Buy	+1,416	New	+$426K	0.04%	72

Other funds holding BIIB

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

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

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

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

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

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

Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

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

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

ARGA Investment Management's BIIB Position: Q3 2025 in Review

ARGA Investment Management sold out of Biogen (BIIB) in Q3 2025, closing a stake of 4,133 shares — an estimated $519K sold.

ARGA Investment Management first reported a position in BIIB in Q2 2020 and held it in 19 quarters. The position peaked at $1.25M in Q1 2021. 907 funds tracked by Wall St. Rank hold BIIB as of Q3 2025.

ARGA Investment Management reported no remaining Biogen position as of Q3 2025 after selling out during the quarter.
ARGA Investment Management sold 4,133 Biogen shares in Q3 2025, an estimated $519K.
ARGA Investment Management first reported a position in Biogen in Q2 2020 and held it in 19 quarters.
ARGA Investment Management's Biogen position peaked at $1.25M in Q1 2021.
907 funds tracked by Wall St. Rank held Biogen as of Q3 2025.

Based on ARGA Investment Management's 13F filing for Q3 2025, filed 31 Oct 2025.