Arizona State Retirement System’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $7.31M | Sell |
39,863
-357
| -0.9% | -$65.8K | 0.04% | 335 |
|
|
2025
Q4 | $7.08M | Sell |
40,220
-3,199
| -7% | -$523K | 0.04% | 346 |
|
|
2025
Q3 | $6.08M | Buy |
43,419
+666
| +2% | +$90K | 0.03% | 402 |
|
|
2025
Q2 | $5.37M | Buy |
42,753
+639
| +2% | +$79.6K | 0.03% | 419 |
|
|
2025
Q1 | $5.76M | Buy |
42,114
+1,344
| +3% | +$192K | 0.04% | 381 |
|
|
2024
Q4 | $6.23M | Sell |
40,770
-951
| -2% | -$160K | 0.04% | 371 |
|
|
2024
Q3 | $8.09M | Sell |
41,721
-419
| -1% | -$87.7K | 0.05% | 314 |
|
|
2024
Q2 | $9.77M | Buy |
42,140
+559
| +1% | +$121K | 0.07% | 264 |
|
|
2024
Q1 | $8.97M | Buy |
41,581
+836
| +2% | +$196K | 0.06% | 283 |
|
|
2023
Q4 | $10.5M | Sell |
40,745
-225
| -0.5% | -$55.3K | 0.08% | 228 |
|
|
2023
Q3 | $10.5M | Sell |
40,970
-331
| -0.8% | -$88.5K | 0.09% | 208 |
|
|
2023
Q2 | $11.8M | Buy |
41,301
+1,982
| +5% | +$590K | 0.1% | 193 |
|
|
2023
Q1 | $10.9M | Sell |
39,319
-221
| -0.6% | -$61.1K | 0.1% | 194 |
|
|
2022
Q4 | $10.9M | Sell |
39,540
-269
| -0.7% | -$76K | 0.11% | 181 |
|
|
2022
Q3 | $10.6M | Sell |
39,809
-510
| -1% | -$108K | 0.11% | 168 |
|
|
2022
Q2 | $8.22M | Buy |
40,319
+12
| +0% | +$2.45K | 0.08% | 235 |
|
|
2022
Q1 | $8.49M | Sell |
40,307
-511
| -1% | -$111K | 0.07% | 270 |
|
|
2021
Q4 | $9.79M | Sell |
40,818
-1,166
| -3% | -$300K | 0.07% | 247 |
|
|
2021
Q3 | $11.9M | Sell |
41,984
-697
| -2% | -$228K | 0.1% | 193 |
|
|
2021
Q2 | $14.8M | Sell |
42,681
-683
| -2% | -$207K | 0.12% | 156 |
|
|
2021
Q1 | $12.1M | Sell |
43,364
-2,314
| -5% | -$624K | 0.11% | 165 |
|
|
2020
Q4 | $11.2M | Sell |
45,678
-3,951
| -8% | -$1.02M | 0.1% | 173 |
|
|
2020
Q3 | $14.1M | Buy |
49,629
+8,741
| +21% | +$2.44M | 0.14% | 140 |
|
|
2020
Q2 | $10.9M | Buy |
40,888
+8,444
| +26% | +$2.54M | 0.15% | 130 |
|
|
2020
Q1 | $10.3M | Sell |
32,444
-1,438
| -4% | -$436K | 0.18% | 135 |
|
|
2019
Q4 | $10.1M | Sell |
33,882
-560
| -2% | -$155K | 0.12% | 207 |
|
|
2019
Q3 | $8.02M | Sell |
34,442
-2,435
| -7% | -$567K | 0.1% | 250 |
|
|
2019
Q2 | $8.62M | Sell |
36,877
-895
| -2% | -$207K | 0.1% | 235 |
|
|
2019
Q1 | $8.93M | Sell |
37,772
-3,626
| -9% | -$1.14M | 0.11% | 205 |
|
|
2018
Q4 | $12.5M | Sell |
41,398
-8,531
| -17% | -$2.72M | 0.16% | 112 |
|
|
2018
Q3 | $17.6M | Sell |
49,929
-1,928
| -4% | -$664K | 0.17% | 110 |
|
|
2018
Q2 | $15.1M | Sell |
51,857
-612
| -1% | -$172K | 0.15% | 131 |
|
|
2018
Q1 | $14.4M | Sell |
52,469
-1,100
| -2% | -$341K | 0.15% | 135 |
|
|
2017
Q4 | $17.1M | Buy |
53,569
+1,171
| +2% | +$376K | 0.17% | 113 |
|
|
2017
Q3 | $16.4M | Sell |
52,398
-600
| -1% | -$178K | 0.2% | 103 |
|
|
2017
Q2 | $14.4M | Sell |
52,998
-500
| -0.9% | -$132K | 0.2% | 105 |
|
|
2017
Q1 | $14.6M | Sell |
53,498
-300
| -0.6% | -$84.8K | 0.21% | 101 |
|
|
2016
Q4 | $15.3M | Sell |
53,798
-200
| -0.4% | -$59.3K | 0.22% | 93 |
|
|
2016
Q3 | $16.9M | Buy |
53,998
+300
| +0.6% | +$88.9K | 0.26% | 80 |
|
|
2016
Q2 | $13M | Sell |
53,698
-5,600
| -9% | -$1.48M | 0.18% | 110 |
|
|
2016
Q1 | $15.4M | Sell |
59,298
-100
| -0.2% | -$26.4K | 0.2% | 101 |
|
|
2015
Q4 | $18.2M | Sell |
59,398
-4,900
| -8% | -$1.41M | 0.24% | 85 |
|
|
2015
Q3 | $18.8M | Buy |
+64,298
| New | +$21.2M | 0.26% | 80 |
|
|
2014
Q4 | $22.4M | Buy |
66,098
+400
| +0.6% | +$129K | 0.26% | 70 |
|
|
2014
Q3 | $21.7M | Sell |
65,698
-2,000
| -3% | -$659K | 0.27% | 64 |
|
|
2014
Q2 | $21.3M | Buy |
67,698
+2,900
| +4% | +$873K | 0.26% | 67 |
|
|
2014
Q1 | $19.8M | Sell |
64,798
-2,700
| -4% | -$857K | 0.25% | 73 |
|
|
2013
Q4 | $18.9M | Sell |
67,498
-2,300
| -3% | -$595K | 0.23% | 81 |
|
|
2013
Q3 | $16.8M | Sell |
69,798
-1,300
| -2% | -$291K | 0.22% | 84 |
|
|
2013
Q2 | $15.3M | Buy |
+71,098
| New | +$15.2M | 0.21% | 87 |
|
Other funds holding BIIB
VCM
VPM
Arizona State Retirement System's BIIB Position: Q1 2026 in Review
Arizona State Retirement System reduced its Biogen (BIIB) stake by 0.89% in Q1 2026, selling an estimated $65.8K and leaving 39,863 shares worth $7.31M. The position accounts for 0.04% of the portfolio, ranked #335.
Arizona State Retirement System first reported a position in BIIB in Q2 2013 and has held it in 50 quarters since. The position peaked at $22.4M in Q4 2014. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.
- Arizona State Retirement System held 39,863 shares of Biogen worth $7.31M as of Q1 2026.
- Arizona State Retirement System sold 357 Biogen shares in Q1 2026, an estimated $65.8K.
- Biogen made up 0.04% of Arizona State Retirement System's portfolio in Q1 2026, its #335 holding.
- Arizona State Retirement System first reported a position in Biogen in Q2 2013 and has held it in 50 quarters since.
- Arizona State Retirement System's Biogen position peaked at $22.4M in Q4 2014.
- 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.
Based on Arizona State Retirement System's 13F filing for Q1 2026, filed 1 May 2026.