California Public Employees Retirement System’s Biogen BIIB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Shares Change % | Capital Flow | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2025
Q2 | $42.6M | Sell |
339,050
-46,044
| -12% | -$5.78M | 0.03% | 415 |
|
|
2025
Q1 | $52.7M | Sell |
385,094
-12,755
| -3% | -$1.75M | 0.04% | 363 |
|
|
2024
Q4 | $60.8M | Buy |
397,849
+2,778
| +0.7% | +$425K | 0.04% | 343 |
|
|
2024
Q3 | $76.6M | Sell |
395,071
-994
| -0.3% | -$193K | 0.05% | 302 |
|
|
2024
Q2 | $91.8M | Sell |
396,065
-8,354
| -2% | -$1.94M | 0.07% | 245 |
|
|
2024
Q1 | $87.2M | Buy |
404,419
+41,210
| +11% | +$8.89M | 0.06% | 282 |
|
|
2023
Q4 | $94M | Buy |
363,209
+82,046
| +29% | +$21.2M | 0.07% | 250 |
|
|
2023
Q3 | $72.3M | Buy |
281,163
+6,532
| +2% | +$1.68M | 0.06% | 287 |
|
|
2023
Q2 | $78.2M | Sell |
274,631
-34,986
| -11% | -$9.97M | 0.07% | 263 |
|
|
2023
Q1 | $86.1M | Sell |
309,617
-62,275
| -17% | -$17.3M | 0.08% | 243 |
|
|
2022
Q4 | $103M | Sell |
371,892
-14,101
| -4% | -$3.9M | 0.09% | 225 |
|
|
2022
Q3 | $103M | Buy |
385,993
+14,096
| +4% | +$3.76M | 0.09% | 208 |
|
|
2022
Q2 | $75.8M | Sell |
371,897
-54,459
| -13% | -$11.1M | 0.07% | 255 |
|
|
2022
Q1 | $89.8M | Sell |
426,356
-24,385
| -5% | -$5.14M | 0.07% | 270 |
|
|
2021
Q4 | $108M | Sell |
450,741
-17,527
| -4% | -$4.21M | 0.07% | 253 |
|
|
2021
Q3 | $133M | Sell |
468,268
-5,238
| -1% | -$1.48M | 0.1% | 205 |
|
|
2021
Q2 | $164M | Buy |
473,506
+100,803
| +27% | +$34.9M | 0.12% | 171 |
|
|
2021
Q1 | $104M | Sell |
372,703
-15,019
| -4% | -$4.2M | 0.08% | 245 |
|
|
2020
Q4 | $94.9M | Buy |
387,722
+8,375
| +2% | +$2.05M | 0.07% | 263 |
|
|
2020
Q3 | $108M | Buy |
379,347
+987
| +0.3% | +$280K | 0.1% | 213 |
|
|
2020
Q2 | $101M | Sell |
378,360
-23,929
| -6% | -$6.4M | 0.1% | 210 |
|
|
2020
Q1 | $127M | Sell |
402,289
-51,914
| -11% | -$16.4M | 0.15% | 149 |
|
|
2019
Q4 | $135M | Sell |
454,203
-41,328
| -8% | -$12.3M | 0.12% | 178 |
|
|
2019
Q3 | $115M | Buy |
495,531
+39,137
| +9% | +$9.11M | 0.11% | 195 |
|
|
2019
Q2 | $107M | Sell |
456,394
-25,279
| -5% | -$5.91M | 0.13% | 176 |
|
|
2019
Q1 | $114M | Buy |
481,673
+1,745
| +0.4% | +$412K | 0.14% | 159 |
|
|
2018
Q4 | $144M | Sell |
479,928
-29,969
| -6% | -$9.02M | 0.2% | 117 |
|
|
2018
Q3 | $180M | Sell |
509,897
-38,778
| -7% | -$13.7M | 0.23% | 86 |
|
|
2018
Q2 | $159M | Buy |
548,675
+540
| +0.1% | +$157K | 0.22% | 86 |
|
|
2018
Q1 | $150M | Buy |
548,135
+15,899
| +3% | +$4.35M | 0.21% | 86 |
|
|
2017
Q4 | $170M | Buy |
532,236
+28,718
| +6% | +$9.15M | 0.23% | 81 |
|
|
2017
Q3 | $158M | Buy |
503,518
+5,218
| +1% | +$1.63M | 0.23% | 81 |
|
|
2017
Q2 | $135M | Buy |
498,300
+7,600
| +2% | +$2.06M | 0.22% | 89 |
|
|
2017
Q1 | $134M | Buy |
490,700
+17,600
| +4% | +$4.81M | 0.22% | 86 |
|
|
2016
Q4 | $134M | Sell |
473,100
-59,700
| -11% | -$16.9M | 0.23% | 83 |
|
|
2016
Q3 | $167M | Sell |
532,800
-15,900
| -3% | -$4.98M | 0.27% | 67 |
|
|
2016
Q2 | $133M | Sell |
548,700
-14,600
| -3% | -$3.53M | 0.21% | 88 |
|
|
2016
Q1 | $147M | Sell |
563,300
-44,700
| -7% | -$11.6M | 0.24% | 85 |
|
|
2015
Q4 | $186M | Sell |
608,000
-2,699
| -0.4% | -$827K | 0.29% | 64 |
|
|
2015
Q3 | $178M | Buy |
610,699
+300
| +0% | +$87.5K | 0.3% | 63 |
|
|
2015
Q2 | $247M | Sell |
610,399
-131,211
| -18% | -$53M | 0.37% | 51 |
|
|
2015
Q1 | $265M | Hold |
741,610
| – | – | 0.37% | 46 |
|
|
2014
Q4 | $265M | Sell |
741,610
-79,782
| -10% | -$28.6M | 0.37% | 46 |
|
|
2014
Q3 | $272M | Buy |
821,392
+38,335
| +5% | +$12.7M | 0.38% | 48 |
|
|
2014
Q2 | $247M | Sell |
783,057
-38,699
| -5% | -$12.2M | 0.34% | 54 |
|
|
2014
Q1 | $235M | Buy |
821,756
+25,274
| +3% | +$7.23M | 0.34% | 53 |
|
|
2013
Q4 | $224M | Buy |
796,482
+201,714
| +34% | +$56.8M | 0.32% | 58 |
|
|
2013
Q3 | $143M | Buy |
594,768
+5,555
| +0.9% | +$1.34M | 0.27% | 68 |
|
|
2013
Q2 | $127M | Buy |
+589,213
| New | +$127M | 0.25% | 68 |
|