FNY Investment Advisers’s Biogen BIIB Stock Holding History

FNY Investment Advisers’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 Q4	–	Sell	-13	Closed	-$1K	–	961
2025 Q3	$1K	Buy	+13	New	+$1.76K	﹤0.01%	1114
2025 Q2	–	Sell	-70	Closed	-$9K	–	976
2025 Q1	$9K	Buy	+70	New	+$10K	0.01%	495
2023 Q2	–	Sell	-204	Closed	-$56K	–	539
2023 Q1	$56K	Buy	204 +104	+104%	+$28.8K	0.06%	164
2022 Q4	$27K	Buy	100 +6	+6%	+$1.7K	0.04%	230
2022 Q3	$25K	Buy	94 +79	+527%	+$16.8K	0.02%	287
2022 Q2	$3K	Hold	15	–	–	﹤0.01%	543
2022 Q1	$3K	Sell	15 -2,485	-99%	-$540K	﹤0.01%	575
2021 Q4	$599K	Buy	+2,500	New	+$643K	0.32%	69
2021 Q1	–	Sell	-5,000	Closed	-$1.22M	–	790
2020 Q4	$1.22M	Buy	+5,000	New	+$1.29M	0.33%	77
2019 Q4	–	Sell	-13	Closed	-$3K	–	825
2019 Q3	$3K	Sell	13 -75	-85%	-$17.5K	﹤0.01%	684
2019 Q2	$20K	Buy	+88	New	+$20.3K	0.01%	472
2018 Q4	–	Sell	-28	Closed	-$9K	–	696
2018 Q3	$9K	Sell	28 -314	-92%	-$108K	﹤0.01%	538
2018 Q2	$99K	Buy	+342	New	+$96.2K	0.04%	228

Other funds holding BIIB

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 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

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

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

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

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

Norges Bank Oslo, Norway $1T AUM

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

FNY Investment Advisers's BIIB Position: Q4 2025 in Review

FNY Investment Advisers sold out of Biogen (BIIB) in Q4 2025, closing a stake of 13 shares — an estimated $1K sold.

FNY Investment Advisers first reported a position in BIIB in Q2 2018 and held it in 13 quarters. The position peaked at $1.22M in Q4 2020. 1,000 funds tracked by Wall St. Rank hold BIIB as of Q4 2025.

FNY Investment Advisers reported no remaining Biogen position as of Q4 2025 after selling out during the quarter.
FNY Investment Advisers sold 13 Biogen shares in Q4 2025, an estimated $1K.
FNY Investment Advisers first reported a position in Biogen in Q2 2018 and held it in 13 quarters.
FNY Investment Advisers's Biogen position peaked at $1.22M in Q4 2020.
1,000 funds tracked by Wall St. Rank held Biogen as of Q4 2025.

Based on FNY Investment Advisers's 13F filing for Q4 2025, filed 16 Jan 2026.