Oppenheimer & Co’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $576K | Sell |
2,666
-54
| -2% | -$10.3K | 0.01% | 1193 |
|
|
2026
Q1 | $499K | Buy |
+2,720
| New | +$501K | 0.01% | 1188 |
|
|
2025
Q4 | – | Sell |
-13,610
| Closed | -$1.91M | – | 1591 |
|
|
2025
Q3 | $1.91M | Buy |
13,610
+11,346
| +501% | +$1.53M | 0.02% | 623 |
|
|
2025
Q2 | $284K | Sell |
2,264
-2,026
| -47% | -$252K | ﹤0.01% | 1381 |
|
|
2025
Q1 | $587K | Buy |
4,290
+66
| +2% | +$9.44K | 0.01% | 1025 |
|
|
2024
Q4 | $646K | Sell |
4,224
-1,826
| -30% | -$308K | 0.01% | 976 |
|
|
2024
Q3 | $1.17M | Sell |
6,050
-1,526
| -20% | -$319K | 0.02% | 738 |
|
|
2024
Q2 | $1.76M | Buy |
7,576
+48
| +0.6% | +$10.4K | 0.03% | 573 |
|
|
2024
Q1 | $1.62M | Sell |
7,528
-3,628
| -33% | -$850K | 0.03% | 574 |
|
|
2023
Q4 | $2.89M | Buy |
11,156
+2,779
| +33% | +$683K | 0.05% | 397 |
|
|
2023
Q3 | $2.15M | Sell |
8,377
-1,053
| -11% | -$282K | 0.04% | 442 |
|
|
2023
Q2 | $2.69M | Sell |
9,430
-823
| -8% | -$245K | 0.05% | 399 |
|
|
2023
Q1 | $2.85M | Buy |
10,253
+3,097
| +43% | +$857K | 0.06% | 357 |
|
|
2022
Q4 | $1.98M | Sell |
7,156
-416
| -5% | -$117K | 0.05% | 445 |
|
|
2022
Q3 | $2.02M | Sell |
7,572
-410
| -5% | -$87.1K | 0.05% | 423 |
|
|
2022
Q2 | $1.63M | Sell |
7,982
-231
| -3% | -$47.2K | 0.04% | 521 |
|
|
2022
Q1 | $1.73M | Buy |
8,213
+512
| +7% | +$111K | 0.03% | 540 |
|
|
2021
Q4 | $1.85M | Buy |
7,701
+379
| +5% | +$97.5K | 0.03% | 532 |
|
|
2021
Q3 | $2.07M | Buy |
7,322
+435
| +6% | +$143K | 0.04% | 497 |
|
|
2021
Q2 | $2.38M | Sell |
6,887
-4,524
| -40% | -$1.37M | 0.04% | 457 |
|
|
2021
Q1 | $3.19M | Buy |
11,411
+2,940
| +35% | +$793K | 0.06% | 348 |
|
|
2020
Q4 | $2.07M | Sell |
8,471
-1,327
| -14% | -$342K | 0.04% | 427 |
|
|
2020
Q3 | $2.78M | Sell |
9,798
-3,955
| -29% | -$1.1M | 0.07% | 312 |
|
|
2020
Q2 | $3.68M | Buy |
13,753
+360
| +3% | +$108K | 0.1% | 241 |
|
|
2020
Q1 | $4.24M | Buy |
13,393
+835
| +7% | +$253K | 0.13% | 172 |
|
|
2019
Q4 | $3.73M | Sell |
12,558
-182
| -1% | -$50.5K | 0.09% | 255 |
|
|
2019
Q3 | $2.97M | Buy |
12,740
+33
| +0.3% | +$7.68K | 0.08% | 285 |
|
|
2019
Q2 | $2.97M | Buy |
12,707
+1,446
| +13% | +$334K | 0.08% | 282 |
|
|
2019
Q1 | $2.66M | Buy |
11,261
+374
| +3% | +$118K | 0.07% | 325 |
|
|
2018
Q4 | $3.28M | Sell |
10,887
-13
| -0.1% | -$4.15K | 0.1% | 218 |
|
|
2018
Q3 | $3.85M | Buy |
10,900
+1,545
| +17% | +$532K | 0.1% | 236 |
|
|
2018
Q2 | $2.71M | Sell |
9,355
-45,983
| -83% | -$12.9M | 0.07% | 313 |
|
|
2018
Q1 | $15.2M | Sell |
55,338
-2,266
| -4% | -$703K | 0.39% | 55 |
|
|
2017
Q4 | $18.4M | Buy |
57,604
+1,107
| +2% | +$355K | 0.47% | 41 |
|
|
2017
Q3 | $17.7M | Buy |
56,497
+1,379
| +3% | +$408K | 0.47% | 42 |
|
|
2017
Q2 | $15M | Sell |
55,118
-837
| -1% | -$221K | 0.41% | 48 |
|
|
2017
Q1 | $15.3M | Sell |
55,955
-1,181
| -2% | -$334K | 0.43% | 47 |
|
|
2016
Q4 | $16.2M | Buy |
57,136
+697
| +1% | +$207K | 0.47% | 41 |
|
|
2016
Q3 | $17.7M | Sell |
56,439
-1,350
| -2% | -$400K | 0.52% | 37 |
|
|
2016
Q2 | $14M | Sell |
57,789
-1,049
| -2% | -$276K | 0.42% | 51 |
|
|
2016
Q1 | $15.3M | Buy |
58,838
+562
| +1% | +$148K | 0.47% | 43 |
|
|
2015
Q4 | $17.9M | Buy |
58,276
+773
| +1% | +$222K | 0.53% | 36 |
|
|
2015
Q3 | $16.8M | Buy |
57,503
+3,895
| +7% | +$1.29M | 0.51% | 36 |
|
|
2015
Q2 | $21.7M | Buy |
53,608
+42,027
| +363% | +$16.9M | 0.6% | 19 |
|
|
2015
Q1 | $4.89M | Buy |
11,581
+1,035
| +10% | +$408K | 0.13% | 180 |
|
|
2014
Q4 | $3.58M | Sell |
10,546
-847
| -7% | -$274K | 0.1% | 236 |
|
|
2014
Q3 | $3.77M | Buy |
11,393
+1,103
| +11% | +$364K | 0.11% | 222 |
|
|
2014
Q2 | $3.24M | Buy |
10,290
+102
| +1% | +$30.7K | 0.1% | 246 |
|
|
2014
Q1 | $3.12M | Sell |
10,188
-447
| -4% | -$142K | 0.09% | 263 |
|
|
2013
Q4 | $2.97M | Buy |
10,635
+2,641
| +33% | +$683K | 0.1% | 259 |
|
|
2013
Q3 | $1.92M | Buy |
7,994
+1,256
| +19% | +$281K | 0.07% | 324 |
|
|
2013
Q2 | $1.45M | Buy |
+6,738
| New | +$1.44M | 0.06% | 389 |
|
Other funds holding BIIB
Oppenheimer & Co's BIIB Position: Q2 2026 in Review
Oppenheimer & Co reduced its Biogen (BIIB) stake by 2% in Q2 2026, selling an estimated $10.3K and leaving 2,666 shares worth $576K. The position accounts for 0.01% of the portfolio, ranked #1193.
Oppenheimer & Co first reported a position in BIIB in Q2 2013 and has held it in 52 quarters since. The position peaked at $21.7M in Q2 2015. 1,043 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.
- Oppenheimer & Co held 2,666 shares of Biogen worth $576K as of Q2 2026.
- Oppenheimer & Co sold 54 Biogen shares in Q2 2026, an estimated $10.3K.
- Biogen made up 0.01% of Oppenheimer & Co's portfolio in Q2 2026, its #1193 holding.
- Oppenheimer & Co first reported a position in Biogen in Q2 2013 and has held it in 52 quarters since.
- Oppenheimer & Co's Biogen position peaked at $21.7M in Q2 2015.
- 1,043 funds tracked by Wall St. Rank held Biogen as of Q2 2026.
Based on Oppenheimer & Co's 13F filing for Q2 2026, filed 3 Aug 2026.