Chilton Capital Management’s Biogen BIIB Stock Holding History

Chilton Capital 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	$865	Hold	4	–	–	﹤0.01%	563
2026 Q1	$734	Hold	4	–	–	﹤0.01%	633
2025 Q4	$704	Buy	+4	New	+$653	﹤0.01%	616
2025 Q3	–	Sell	-20	Closed	-$2.51K	–	573
2025 Q2	$2.51K	Buy	+20	New	+$2.49K	﹤0.01%	501
2022 Q3	–	Sell	-55	Closed	-$11K	–	251
2022 Q2	$11K	Buy	+55	New	+$11.2K	﹤0.01%	452
2016 Q4	–	Sell	-6,763	Closed	-$2.12M	–	141
2016 Q3	$2.12M	Sell	6,763 -4,712	-41%	-$1.4M	0.21%	87
2016 Q2	$2.77M	Buy	11,475 +172	+2%	+$45.3K	0.27%	82
2016 Q1	$2.94M	Sell	11,303 -6,148	-35%	-$1.62M	0.29%	83
2015 Q4	$5.35M	Sell	17,451 -20,260	-54%	-$5.82M	0.56%	74
2015 Q3	$11M	Buy	37,711 +12,407	+49%	+$4.1M	1.13%	33
2015 Q2	$10.2M	Buy	+25,304	New	+$10.2M	0.96%	45

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

Chilton Capital Management's BIIB Position: Q2 2026 in Review

Chilton Capital Management held its Biogen (BIIB) position steady in Q2 2026 at 4 shares worth $865. The position accounts for ﹤0.01% of the portfolio, ranked #563.

Chilton Capital Management first reported a position in BIIB in Q2 2015 and has held it in 11 quarters since. The position peaked at $11M in Q3 2015. 1,043 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Chilton Capital Management held 4 shares of Biogen worth $865 as of Q2 2026.
Chilton Capital Management left its Biogen share count unchanged in Q2 2026.
Biogen made up ﹤0.01% of Chilton Capital Management's portfolio in Q2 2026, its #563 holding.
Chilton Capital Management first reported a position in Biogen in Q2 2015 and has held it in 11 quarters since.
Chilton Capital Management's Biogen position peaked at $11M in Q3 2015.
1,043 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Chilton Capital Management's 13F filing for Q2 2026, filed 4 Aug 2026.