Bank of America’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q4 | – | Sell |
-50,000
| Closed | -$7M | – | 7407 |
|
|
2025
Q3 | $7M | Buy |
50,000
+25,000
| +100% | +$3.38M | ﹤0.01% | 3675 |
|
|
2025
Q2 | $3.14M | Hold |
25,000
| – | – | ﹤0.01% | 4344 |
|
|
2025
Q1 | $3.42M | Sell |
25,000
-36,700
| -59% | -$5.25M | ﹤0.01% | 4190 |
|
|
2024
Q4 | $9.44M | Buy |
61,700
+37,000
| +150% | +$6.24M | ﹤0.01% | 2999 |
|
|
2024
Q3 | $4.79M | Hold |
24,700
| – | – | ﹤0.01% | 3771 |
|
|
2024
Q2 | $5.73M | Buy |
24,700
+12,200
| +98% | +$2.65M | ﹤0.01% | 3500 |
|
|
2024
Q1 | $2.7M | Sell |
12,500
-41,700
| -77% | -$9.77M | ﹤0.01% | 4204 |
|
|
2023
Q4 | $14M | Sell |
54,200
-28,200
| -34% | -$6.93M | ﹤0.01% | 2505 |
|
|
2023
Q3 | $21.2M | Buy |
82,400
+43,500
| +112% | +$11.6M | ﹤0.01% | 1977 |
|
|
2023
Q2 | $11.1M | Sell |
38,900
-44,100
| -53% | -$13.1M | ﹤0.01% | 2609 |
|
|
2023
Q1 | $23.1M | Sell |
83,000
-39,800
| -32% | -$11M | ﹤0.01% | 1987 |
|
|
2022
Q4 | $34M | Sell |
122,800
-12,300
| -9% | -$3.47M | ﹤0.01% | 1590 |
|
|
2022
Q3 | $36.1M | Sell |
135,100
-64,800
| -32% | -$13.8M | ﹤0.01% | 1514 |
|
|
2022
Q2 | $40.8M | Buy |
199,900
+74,300
| +59% | +$15.2M | ﹤0.01% | 1411 |
|
|
2022
Q1 | $26.5M | Sell |
125,600
-463,100
| -79% | -$101M | ﹤0.01% | 1888 |
|
|
2021
Q4 | $141M | Buy |
588,700
+166,900
| +40% | +$42.9M | 0.01% | 831 |
|
|
2021
Q3 | $119M | Buy |
421,800
+250,500
| +146% | +$82.1M | 0.01% | 872 |
|
|
2021
Q2 | $59.3M | Buy |
171,300
+125,200
| +272% | +$37.9M | 0.01% | 1257 |
|
|
2021
Q1 | $12.9M | Sell |
46,100
-2,100
| -4% | -$566K | ﹤0.01% | 2474 |
|
|
2020
Q4 | $11.8M | Buy |
48,200
+46,100
| +2,195% | +$11.9M | ﹤0.01% | 2352 |
|
|
2020
Q3 | $596K | Sell |
2,100
-11,000
| -84% | -$3.07M | ﹤0.01% | 4576 |
|
|
2020
Q2 | $3.5M | Sell |
13,100
-69,100
| -84% | -$20.8M | ﹤0.01% | 3169 |
|
|
2020
Q1 | $26M | Sell |
82,200
-208,700
| -72% | -$63.3M | ﹤0.01% | 1326 |
|
|
2019
Q4 | $86.3M | Buy |
290,900
+1,900
| +0.7% | +$527K | 0.01% | 849 |
|
|
2019
Q3 | $67.3M | Buy |
289,000
+70,100
| +32% | +$16.3M | 0.01% | 958 |
|
|
2019
Q2 | $51.2M | Buy |
218,900
+117,800
| +117% | +$27.2M | 0.01% | 1112 |
|
|
2019
Q1 | $23.9M | Sell |
101,100
-14,900
| -13% | -$4.69M | ﹤0.01% | 1668 |
|
|
2018
Q4 | $34.9M | Sell |
116,000
-81,300
| -41% | -$25.9M | 0.01% | 1252 |
|
|
2018
Q3 | $69.7M | Sell |
197,300
-3,800
| -2% | -$1.31M | 0.01% | 901 |
|
|
2018
Q2 | $58.4M | Hold |
201,100
| – | – | 0.01% | 997 |
|
|
2018
Q1 | $55.1M | Sell |
201,100
-11,800
| -6% | -$3.66M | 0.01% | 990 |
|
|
2017
Q4 | $67.8M | Buy |
212,900
+104,200
| +96% | +$33.4M | 0.01% | 925 |
|
|
2017
Q3 | $34M | Buy |
108,700
+5,500
| +5% | +$1.63M | 0.01% | 1449 |
|
|
2017
Q2 | $28M | Buy |
103,200
+68,000
| +193% | +$18M | 0.01% | 1458 |
|
|
2017
Q1 | $9.62M | Sell |
35,200
-323,700
| -90% | -$91.5M | ﹤0.01% | 2414 |
|
|
2016
Q4 | $102M | Sell |
358,900
-132,500
| -27% | -$39.3M | 0.02% | 660 |
|
|
2016
Q3 | $154M | Buy |
491,400
+115,300
| +31% | +$34.1M | 0.03% | 477 |
|
|
2016
Q2 | $90.9M | Sell |
376,100
-125,700
| -25% | -$33.1M | 0.02% | 668 |
|
|
2016
Q1 | $131M | Buy |
501,800
+71,500
| +17% | +$18.9M | 0.03% | 508 |
|
|
2015
Q4 | $132M | Sell |
430,300
-253,900
| -37% | -$73M | 0.03% | 540 |
|
|
2015
Q3 | $200M | Buy |
684,200
+373,900
| +120% | +$123M | 0.05% | 391 |
|
|
2015
Q2 | $125M | Buy |
310,300
+111,900
| +56% | +$44.9M | 0.04% | 461 |
|
|
2015
Q1 | $83.8M | Sell |
198,400
-86,100
| -30% | -$33.9M | 0.03% | 589 |
|
|
2014
Q4 | $96.6M | Sell |
284,500
-17,400
| -6% | -$5.63M | 0.03% | 561 |
|
|
2014
Q3 | $99.9M | Buy |
301,900
+45,700
| +18% | +$15.1M | 0.03% | 539 |
|
|
2014
Q2 | $80.8M | Buy |
256,200
+162,400
| +173% | +$48.9M | 0.03% | 623 |
|
|
2014
Q1 | $28.7M | Buy |
93,800
+6,000
| +7% | +$1.9M | 0.01% | 1039 |
|
|
2013
Q4 | $24.5M | Buy |
87,800
+38,500
| +78% | +$9.96M | 0.01% | 1195 |
|
|
2013
Q3 | $11.9M | Buy |
49,300
+34,400
| +231% | +$7.7M | ﹤0.01% | 1634 |
|
|
2013
Q2 | $3.21M | Buy |
+14,900
| New | +$3.18M | ﹤0.01% | 2702 |
|
Other funds holding BIIB
VCM
VPM
Bank of America's BIIB Position: Q1 2026 in Review
Bank of America increased its Biogen (BIIB) stake by 2.4% in Q1 2026, buying an estimated $5.07M and bringing the position to 1,156,369 shares worth $212M. The position accounts for 0.02% of the portfolio, ranked #701.
Bank of America first reported a position in BIIB in Q2 2013 and has held it in 52 quarters since. The position peaked at $759M in Q3 2017. 1,009 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- Bank of America held 1,156,369 shares of Biogen worth $212M as of Q1 2026.
- Bank of America bought 27,524 Biogen shares in Q1 2026, an estimated $5.07M.
- Biogen made up 0.02% of Bank of America's portfolio in Q1 2026, its #701 holding.
- Bank of America first reported a position in Biogen in Q2 2013 and has held it in 52 quarters since.
- Bank of America's Biogen position peaked at $759M in Q3 2017.
- 1,009 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on Bank of America's 13F filing for Q1 2026, filed 18 May 2026.