Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2020
Q4
$35.7M Sell
145,780
-47,734
-25% -$12.3M 0.11% 187
2020
Q3
$54.9M Sell
193,514
-16,716
-8% -$4.66M 0.19% 96
2020
Q2
$56.2M Sell
210,230
-20,855
-9% -$6.27M 0.21% 91
2020
Q1
$73.1M Buy
231,085
+20,614
+10% +$6.26M 0.32% 57
2019
Q4
$62.5M Sell
210,471
-7,336
-3% -$2.04M 0.22% 85
2019
Q3
$50.7M Buy
217,807
+84,560
+63% +$19.7M 0.2% 97
2019
Q2
$31.2M Sell
133,247
-34,222
-20% -$7.9M 0.13% 176
2019
Q1
$39.6M Buy
167,469
+6,990
+4% +$2.2M 0.17% 125
2018
Q4
$48.3M Buy
160,479
+141
+0.1% +$45K 0.24% 81
2018
Q3
$56.6M Buy
160,338
+8,256
+5% +$2.84M 0.25% 81
2018
Q2
$44.1M Buy
152,082
+30,124
+25% +$8.47M 0.21% 101
2018
Q1
$33.4M Sell
121,958
-4,590
-4% -$1.42M 0.17% 140
2017
Q4
$40.3M Buy
126,548
+18,780
+17% +$6.02M 0.2% 105
2017
Q3
$33.7M Buy
107,768
+12,007
+13% +$3.56M 0.19% 115
2017
Q2
$26M Sell
95,761
-151
-0.2% -$39.9K 0.16% 146
2017
Q1
$26.2M Buy
95,912
+2,498
+3% +$706K 0.18% 128
2016
Q4
$26.5M Sell
93,414
-1,403
-1% -$416K 0.2% 106
2016
Q3
$29.7M Buy
94,817
+5,454
+6% +$1.62M 0.21% 105
2016
Q2
$21.6M Buy
89,363
+2,152
+2% +$567K 0.17% 142
2016
Q1
$22.7M Sell
87,211
-1,896
-2% -$501K 0.19% 125
2015
Q4
$27.3M Buy
89,107
+6,423
+8% +$1.85M 0.25% 88
2015
Q3
$24.1M Buy
82,684
+418
+0.5% +$138K 0.25% 92
2015
Q2
$33.2M Buy
82,266
+4,556
+6% +$1.83M 0.34% 58
2015
Q1
$32.8M Buy
77,710
+7,338
+10% +$2.89M 0.37% 50
2014
Q4
$23.9M Buy
70,372
+3,310
+5% +$1.07M 0.29% 70
2014
Q3
$22.2M Buy
67,062
+6,248
+10% +$2.06M 0.3% 68
2014
Q2
$19.2M Buy
60,814
+935
+2% +$281K 0.28% 73
2014
Q1
$18.3M Buy
+59,879
New +$19M 0.26% 69
2013
Q4
Sell
-49,697
Closed -$12.9M 80
2013
Q3
$12M Buy
49,697
+6,403
+15% +$1.43M 0.23% 90
2013
Q2
$9.32M Buy
+43,294
New +$9.25M 0.22% 93

Other funds holding BIIB

Aperio Group's BIIB Position: Q4 2020 in Review

Aperio Group reduced its Biogen (BIIB) stake by 25% in Q4 2020, selling an estimated $12.3M and leaving 145,780 shares worth $35.7M. The position accounts for 0.11% of the portfolio, ranked #187.

Aperio Group first reported a position in BIIB in Q2 2013 and has held it in 30 quarters since. The position peaked at $73.1M in Q1 2020. 1,061 funds tracked by Wall St. Rank hold BIIB as of Q4 2020.

  • Aperio Group held 145,780 shares of Biogen worth $35.7M as of Q4 2020.
  • Aperio Group sold 47,734 Biogen shares in Q4 2020, an estimated $12.3M.
  • Biogen made up 0.11% of Aperio Group's portfolio in Q4 2020, its #187 holding.
  • Aperio Group first reported a position in Biogen in Q2 2013 and has held it in 30 quarters since.
  • Aperio Group's Biogen position peaked at $73.1M in Q1 2020.
  • 1,061 funds tracked by Wall St. Rank held Biogen as of Q4 2020.

Based on Aperio Group's 13F filing for Q4 2020, filed 5 Feb 2021.