Sigma Planning Corp’s Biogen BIIB Stock Holding History

Sigma Planning Corp’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	$1.34M	Sell	6,193 -1,008	-14%	-$193K	0.03%	487
2026 Q1	$1.32M	Buy	7,201 +1,955	+37%	+$360K	0.04%	465
2025 Q4	$923K	Buy	+5,246	New	+$857K	0.03%	560
2023 Q1	–	Sell	-948	Closed	-$263K	–	1301
2022 Q4	$263K	Sell	948 -735	-44%	-$208K	0.01%	1021
2022 Q3	$449K	Sell	1,683 -32	-2%	-$6.8K	0.02%	775
2022 Q2	$350K	Sell	1,715 -78	-4%	-$15.9K	0.01%	916
2022 Q1	$378K	Buy	+1,793	New	+$390K	0.01%	963
2021 Q3	–	Sell	-2,365	Closed	-$819K	–	1391
2021 Q2	$819K	Sell	2,365 -903	-28%	-$274K	0.02%	629
2021 Q1	$914K	Buy	3,268 +259	+9%	+$69.8K	0.03%	536
2020 Q4	$737K	Buy	3,009 +1,862	+162%	+$480K	0.03%	543
2020 Q3	$325K	Sell	1,147 -235	-17%	-$65.5K	0.01%	766
2020 Q2	$370K	Sell	1,382 -197	-12%	-$59.2K	0.02%	702
2020 Q1	$500K	Buy	1,579 +388	+33%	+$118K	0.03%	483
2019 Q4	$353K	Buy	+1,191	New	+$330K	0.01%	721
2019 Q3	–	Sell	-969	Closed	-$227K	–	1011
2019 Q2	$227K	Buy	+969	New	+$224K	0.01%	855
2018 Q4	–	Sell	-810	Closed	-$286K	–	861
2018 Q3	$286K	Buy	810 +4	+0.5%	+$1.38K	0.02%	716
2018 Q2	$234K	Buy	+806	New	+$227K	0.02%	756
2018 Q1	–	Sell	-994	Closed	-$317K	–	862
2017 Q4	$317K	Buy	994 +234	+31%	+$75.1K	0.02%	581
2017 Q3	$238K	Buy	+760	New	+$225K	0.02%	701

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

Sigma Planning Corp's BIIB Position: Q2 2026 in Review

Sigma Planning Corp reduced its Biogen (BIIB) stake by 14% in Q2 2026, selling an estimated $193K and leaving 6,193 shares worth $1.34M. The position accounts for 0.03% of the portfolio, ranked #487.

Sigma Planning Corp first reported a position in BIIB in Q3 2017 and has held it in 19 quarters since. 1,043 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

Sigma Planning Corp held 6,193 shares of Biogen worth $1.34M as of Q2 2026.
Sigma Planning Corp sold 1,008 Biogen shares in Q2 2026, an estimated $193K.
Biogen made up 0.03% of Sigma Planning Corp's portfolio in Q2 2026, its #487 holding.
Sigma Planning Corp first reported a position in Biogen in Q3 2017 and has held it in 19 quarters since.
1,043 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Sigma Planning Corp's 13F filing for Q2 2026, filed 7 Aug 2026.