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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
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

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Sigma Planning Corp's BIIB Position: Q1 2026 in Review

Sigma Planning Corp increased its Biogen (BIIB) stake by 37% in Q1 2026, buying an estimated $360K and bringing the position to 7,201 shares worth $1.32M. The position accounts for 0.04% of the portfolio, ranked #465.

Sigma Planning Corp first reported a position in BIIB in Q3 2017 and has held it in 18 quarters since. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • Sigma Planning Corp held 7,201 shares of Biogen worth $1.32M as of Q1 2026.
  • Sigma Planning Corp bought 1,955 Biogen shares in Q1 2026, an estimated $360K.
  • Biogen made up 0.04% of Sigma Planning Corp's portfolio in Q1 2026, its #465 holding.
  • Sigma Planning Corp first reported a position in Biogen in Q3 2017 and has held it in 18 quarters since.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on Sigma Planning Corp's 13F filing for Q1 2026, filed 4 May 2026.