PPA
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Parametric Portfolio Associates’s Biogen BIIB Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2022
Q1
$104M Buy
494,999
+8,925
+2% +$1.88M 0.05% 337
2021
Q4
$117M Sell
486,074
-112,457
-19% -$27M 0.06% 310
2021
Q3
$169M Sell
598,531
-86,433
-13% -$24.5M 0.1% 194
2021
Q2
$237M Buy
684,964
+22,666
+3% +$7.85M 0.13% 140
2021
Q1
$185M Buy
662,298
+18,408
+3% +$5.15M 0.11% 166
2020
Q4
$158M Sell
643,890
-70,773
-10% -$17.3M 0.1% 175
2020
Q3
$203M Buy
714,663
+42,364
+6% +$12M 0.15% 121
2020
Q2
$180M Sell
672,299
-39,298
-6% -$10.5M 0.14% 129
2020
Q1
$225M Buy
711,597
+82,136
+13% +$26M 0.21% 83
2019
Q4
$187M Sell
629,461
-2,242
-0.4% -$665K 0.14% 136
2019
Q3
$147M Buy
631,703
+32,392
+5% +$7.54M 0.12% 164
2019
Q2
$140M Buy
599,311
+1,738
+0.3% +$406K 0.12% 169
2019
Q1
$141M Sell
597,573
-80,572
-12% -$19M 0.12% 156
2018
Q4
$204M Buy
678,145
+27,935
+4% +$8.41M 0.2% 84
2018
Q3
$230M Sell
650,210
-73,037
-10% -$25.8M 0.2% 82
2018
Q2
$210M Sell
723,247
-19,038
-3% -$5.53M 0.2% 85
2018
Q1
$203M Sell
742,285
-49,656
-6% -$13.6M 0.2% 87
2017
Q4
$252M Buy
791,941
+48,404
+7% +$15.4M 0.25% 63
2017
Q3
$233M Buy
743,537
+24,415
+3% +$7.64M 0.25% 65
2017
Q2
$195M Buy
719,122
+335,221
+87% +$91M 0.23% 70
2017
Q1
$105M Sell
383,901
-387,266
-50% -$106M 0.16% 100
2016
Q4
$219M Sell
771,167
-97,703
-11% -$27.7M 0.3% 51
2016
Q3
$272M Buy
868,870
+113,019
+15% +$35.4M 0.41% 40
2016
Q2
$183M Sell
755,851
-16,546
-2% -$4M 0.29% 55
2016
Q1
$201M Sell
772,397
-91,275
-11% -$23.8M 0.33% 48
2015
Q4
$265M Buy
863,672
+204,268
+31% +$62.6M 0.45% 40
2015
Q3
$192M Buy
659,404
+208,610
+46% +$60.9M 0.38% 46
2015
Q2
$182M Buy
450,794
+21,085
+5% +$8.52M 0.36% 46
2015
Q1
$181M Buy
429,709
+32,899
+8% +$13.9M 0.37% 44
2014
Q4
$135M Sell
396,810
-22,526
-5% -$7.65M 0.28% 57
2014
Q3
$139M Buy
419,336
+10,037
+2% +$3.32M 0.31% 54
2014
Q2
$129M Sell
409,299
-5,981
-1% -$1.89M 0.29% 54
2014
Q1
$127M Buy
415,280
+8,058
+2% +$2.46M 0.3% 54
2013
Q4
$114M Sell
407,222
-5,418
-1% -$1.51M 0.28% 62
2013
Q3
$99.3M Buy
412,640
+25,874
+7% +$6.23M 0.27% 64
2013
Q2
$83.2M Buy
+386,766
New +$83.2M 0.24% 68