AEGON Asset Management (UK)’s Biogen BIIB Stock Holding History

AEGON Asset Management (UK)’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	$52.1M	Sell	241,101 -17,634	-7%	-$3.37M	0.56%	42
2026 Q1	$47.4M	Sell	258,735 -1,427	-0.5%	-$263K	0.63%	38
2025 Q4	$45.8M	Buy	260,162 +64,527	+33%	+$10.5M	0.54%	51
2025 Q3	$27.4M	Buy	+195,635	New	+$26.4M	0.32%	77
2021 Q1	–	Sell	-6,410	Closed	-$1.57M	–	170
2020 Q4	$1.57M	Sell	6,410 -29,152	-82%	-$7.52M	0.02%	160
2020 Q3	$10.1M	Sell	35,562 -92,366	-72%	-$25.8M	0.2%	76
2020 Q2	$34.2M	Sell	127,928 -59	-0%	-$17.7K	0.77%	50
2020 Q1	$40.5M	Buy	+127,987	New	+$38.8M	1.16%	29

Other funds holding BIIB

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

AIM

Artemis Investment Management Edinburgh, United Kingdom $11.2B AUM 80.72% 1-Year Est. Return

Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return

ECSS

Eurizon Capital SGR SpA Milan $37.3B AUM

ADEF

Adams Diversified Equity Fund Baltimore, Maryland $3.27B AUM 45.57% 1-Year Est. Return

New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return

Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return

EAM

Erste Asset Management Vienna, Austria $12.9B AUM 52.69% 1-Year Est. Return

BPC

Banque Pictet & Cie Geneva 73, Switzerland $16B AUM 29.1% 1-Year Est. Return

AEGON Asset Management (UK)'s BIIB Position: Q2 2026 in Review

AEGON Asset Management (UK) reduced its Biogen (BIIB) stake by 6.8% in Q2 2026, selling an estimated $3.37M and leaving 241,101 shares worth $52.1M. The position accounts for 0.56% of the portfolio, ranked #42.

AEGON Asset Management (UK) first reported a position in BIIB in Q1 2020 and has held it in 8 quarters since. 362 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

AEGON Asset Management (UK) held 241,101 shares of Biogen worth $52.1M as of Q2 2026.
AEGON Asset Management (UK) sold 17,634 Biogen shares in Q2 2026, an estimated $3.37M.
Biogen made up 0.56% of AEGON Asset Management (UK)'s portfolio in Q2 2026, its #42 holding.
AEGON Asset Management (UK) first reported a position in Biogen in Q1 2020 and has held it in 8 quarters since.
362 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on AEGON Asset Management (UK)'s 13F filing for Q2 2026, filed 13 Jul 2026.