Renaissance Technologies’s Biogen BIIB Stock Holding History
| Quarter | Market Value | Status | Shares |
Shares Change % | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q2 | $131M | Buy |
1,045,106
+240,600
| +30% | +$30.2M | 0.17% | 116 |
|
|
2025
Q1 | $110M | Sell |
804,506
-387,700
| -33% | -$53.1M | 0.17% | 134 |
|
|
2024
Q4 | $182M | Buy |
1,192,206
+239,500
| +25% | +$36.6M | 0.27% | 59 |
|
|
2024
Q3 | $185M | Buy |
952,706
+334,600
| +54% | +$64.9M | 0.28% | 61 |
|
|
2024
Q2 | $143M | Sell |
618,106
-266,598
| -30% | -$61.8M | 0.24% | 79 |
|
|
2024
Q1 | $191M | Buy |
884,704
+126,098
| +17% | +$27.2M | 0.3% | 48 |
|
|
2023
Q4 | $196M | Sell |
758,606
-327,791
| -30% | -$84.8M | 0.3% | 55 |
|
|
2023
Q3 | $279M | Sell |
1,086,397
-23,140
| -2% | -$5.95M | 0.48% | 30 |
|
|
2023
Q2 | $316M | Sell |
1,109,537
-154,300
| -12% | -$44M | 0.46% | 28 |
|
|
2023
Q1 | $351M | Buy |
1,263,837
+263,561
| +26% | +$73.3M | 0.47% | 26 |
|
|
2022
Q4 | $277M | Sell |
1,000,276
-154,231
| -13% | -$42.7M | 0.38% | 36 |
|
|
2022
Q3 | $308M | Sell |
1,154,507
-391,500
| -25% | -$105M | 0.44% | 33 |
|
|
2022
Q2 | $315M | Buy |
1,546,007
+501,800
| +48% | +$102M | 0.37% | 47 |
|
|
2022
Q1 | $220M | Sell |
1,044,207
-29,600
| -3% | -$6.23M | 0.26% | 70 |
|
|
2021
Q4 | $258M | Buy |
1,073,807
+92,100
| +9% | +$22.1M | 0.32% | 56 |
|
|
2021
Q3 | $278M | Sell |
981,707
-348,296
| -26% | -$98.6M | 0.36% | 51 |
|
|
2021
Q2 | $461M | Sell |
1,330,003
-608,159
| -31% | -$211M | 0.57% | 24 |
|
|
2021
Q1 | $542M | Sell |
1,938,162
-1,099,600
| -36% | -$308M | 0.67% | 15 |
|
|
2020
Q4 | $744M | Sell |
3,037,762
-779,199
| -20% | -$191M | 0.81% | 14 |
|
|
2020
Q3 | $1.08B | Sell |
3,816,961
-88,961
| -2% | -$25.2M | 1.08% | 9 |
|
|
2020
Q2 | $1.05B | Sell |
3,905,922
-567,990
| -13% | -$152M | 0.9% | 12 |
|
|
2020
Q1 | $1.42B | Sell |
4,473,912
-95,994
| -2% | -$30.4M | 1.37% | 5 |
|
|
2019
Q4 | $1.36B | Buy |
4,569,906
+348,700
| +8% | +$103M | 1.04% | 7 |
|
|
2019
Q3 | $983M | Buy |
4,221,206
+1,738,129
| +70% | +$405M | 0.83% | 7 |
|
|
2019
Q2 | $581M | Buy |
2,483,077
+851,263
| +52% | +$199M | 0.51% | 22 |
|
|
2019
Q1 | $386M | Buy |
1,631,814
+617,100
| +61% | +$146M | 0.35% | 41 |
|
|
2018
Q4 | $305M | Buy |
1,014,714
+168,639
| +20% | +$50.7M | 0.33% | 50 |
|
|
2018
Q3 | $299M | Buy |
846,075
+524,575
| +163% | +$185M | 0.31% | 53 |
|
|
2018
Q2 | $93.3M | Sell |
321,500
-306,161
| -49% | -$88.9M | 0.1% | 223 |
|
|
2018
Q1 | $172M | Buy |
+627,661
| New | +$172M | 0.19% | 98 |
|
|
2017
Q4 | – | Sell |
-120,161
| Closed | -$37.6M | – | 3332 |
|
|
2017
Q3 | $37.6M | Sell |
120,161
-642,700
| -84% | -$201M | 0.04% | 561 |
|
|
2017
Q2 | $207M | Sell |
762,861
-86,100
| -10% | -$23.4M | 0.26% | 52 |
|
|
2017
Q1 | $232M | Buy |
848,961
+141,466
| +20% | +$38.7M | 0.32% | 42 |
|
|
2016
Q4 | $201M | Buy |
707,495
+469,234
| +197% | +$133M | 0.32% | 35 |
|
|
2016
Q3 | $74.6M | Buy |
238,261
+197,861
| +490% | +$61.9M | 0.13% | 164 |
|
|
2016
Q2 | $9.77M | Sell |
40,400
-87,261
| -68% | -$21.1M | 0.02% | 1164 |
|
|
2016
Q1 | $33.2M | Buy |
+127,661
| New | +$33.2M | 0.06% | 388 |
|
|
2015
Q4 | – | Sell |
-34,961
| Closed | -$10.2M | – | 3274 |
|
|
2015
Q3 | $10.2M | Sell |
34,961
-70,300
| -67% | -$20.5M | 0.02% | 928 |
|
|
2015
Q2 | $42.5M | Buy |
105,261
+74,961
| +247% | +$30.3M | 0.1% | 235 |
|
|
2015
Q1 | $12.8M | Sell |
30,300
-34,861
| -53% | -$14.7M | 0.03% | 812 |
|
|
2014
Q4 | $22.1M | Sell |
65,161
-27,500
| -30% | -$9.33M | 0.05% | 454 |
|
|
2014
Q3 | $30.7M | Sell |
92,661
-36,600
| -28% | -$12.1M | 0.08% | 287 |
|
|
2014
Q2 | $40.8M | Buy |
+129,261
| New | +$40.8M | 0.1% | 234 |
|
|
2014
Q1 | – | Sell |
-542,338
| Closed | -$152M | – | 2825 |
|
|
2013
Q4 | $152M | Sell |
542,338
-327,362
| -38% | -$91.5M | 0.36% | 38 |
|
|
2013
Q3 | $209M | Sell |
869,700
-523,800
| -38% | -$126M | 0.51% | 25 |
|
|
2013
Q2 | $300M | Buy |
+1,393,500
| New | +$300M | 0.79% | 10 |
|