Harbor Investment Advisory’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Shares
Change %
Capital Flow Portfolio Weight Portfolio Position
2025
Q2
$9.29K Buy
74
+56
+311% +$7.03K ﹤0.01% 898
2025
Q1
$2.46K Hold
18
﹤0.01% 1060
2024
Q4
$2.75K Sell
18
-74
-80% -$11.3K ﹤0.01% 1021
2024
Q3
$17.8K Sell
92
-18
-16% -$3.49K ﹤0.01% 759
2024
Q2
$25.5K Buy
110
+2
+2% +$464 ﹤0.01% 704
2024
Q1
$23.3K Buy
108
+29
+37% +$6.25K ﹤0.01% 716
2023
Q4
$20.4K Buy
79
+12
+18% +$3.11K ﹤0.01% 712
2023
Q3
$17.2K Hold
67
﹤0.01% 717
2023
Q2
$19.1K Hold
67
﹤0.01% 907
2023
Q1
$18.6K Hold
67
﹤0.01% 923
2022
Q4
$18.6K Hold
67
﹤0.01% 912
2022
Q3
$18K Hold
67
﹤0.01% 926
2022
Q2
$14K Sell
67
-25
-27% -$5.22K ﹤0.01% 961
2022
Q1
$19K Buy
92
+15
+19% +$3.1K ﹤0.01% 939
2021
Q4
$18K Sell
77
-82
-52% -$19.2K ﹤0.01% 948
2021
Q3
$45K Hold
159
0.01% 762
2021
Q2
$55K Sell
159
-456
-74% -$158K 0.01% 678
2021
Q1
$172K Sell
615
-339
-36% -$94.8K 0.03% 363
2020
Q4
$234K Sell
954
-464
-33% -$114K 0.04% 285
2020
Q3
$402K Sell
1,418
-200
-12% -$56.7K 0.08% 183
2020
Q2
$433K Sell
1,618
-82
-5% -$21.9K 0.09% 165
2020
Q1
$538K Buy
1,700
+14
+0.8% +$4.43K 0.14% 127
2019
Q4
$500K Buy
+1,686
New +$500K 0.12% 150