National Pension Service’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 | $87.7M | Buy |
406,064
+4,397
| +1% | +$841K | 0.06% | 246 |
|
|
2026
Q1 | $73.6M | Buy |
401,667
+114,429
| +40% | +$21.1M | 0.06% | 251 |
|
|
2025
Q4 | $50.6M | Buy |
287,238
+2,036
| +0.7% | +$333K | 0.04% | 321 |
|
|
2025
Q3 | $40M | Buy |
285,202
+12,147
| +4% | +$1.64M | 0.03% | 357 |
|
|
2025
Q2 | $34.3M | Buy |
273,055
+1,572
| +0.6% | +$196K | 0.03% | 382 |
|
|
2025
Q1 | $37.1M | Buy |
271,483
+21,398
| +9% | +$3.06M | 0.04% | 374 |
|
|
2024
Q4 | $38.2M | Sell |
250,085
-109,484
| -30% | -$18.5M | 0.04% | 354 |
|
|
2024
Q3 | $69.7M | Buy |
359,569
+32,914
| +10% | +$6.89M | 0.07% | 249 |
|
|
2024
Q2 | $75.7M | Buy |
326,655
+12,539
| +4% | +$2.73M | 0.09% | 231 |
|
|
2024
Q1 | $67.7M | Buy |
314,116
+11,799
| +4% | +$2.76M | 0.08% | 240 |
|
|
2023
Q4 | $78.2M | Buy |
302,317
+6,375
| +2% | +$1.57M | 0.11% | 208 |
|
|
2023
Q3 | $76.4M | Buy |
295,942
+14,730
| +5% | +$3.94M | 0.12% | 198 |
|
|
2023
Q2 | $79.3M | Buy |
281,212
+13,881
| +5% | +$4.13M | 0.13% | 196 |
|
|
2023
Q1 | $73.6M | Buy |
267,331
+67,806
| +34% | +$18.8M | 0.13% | 188 |
|
|
2022
Q4 | $55.3M | Sell |
199,525
-6,127
| -3% | -$1.73M | 0.11% | 221 |
|
|
2022
Q3 | $54.3M | Sell |
205,652
-8,362
| -4% | -$1.78M | 0.11% | 212 |
|
|
2022
Q2 | $43.6M | Buy |
214,014
+2,803
| +1% | +$573K | 0.09% | 236 |
|
|
2022
Q1 | $44.5M | Sell |
211,211
-35,230
| -14% | -$7.66M | 0.08% | 253 |
|
|
2021
Q4 | $59.1M | Sell |
246,441
-1,051
| -0.4% | -$270K | 0.1% | 223 |
|
|
2021
Q3 | $70M | Sell |
247,492
-6,130
| -2% | -$2.01M | 0.13% | 169 |
|
|
2021
Q2 | $87.8M | Buy |
253,622
+4,600
| +2% | +$1.39M | 0.17% | 136 |
|
|
2021
Q1 | $69.7M | Sell |
249,022
-5,726
| -2% | -$1.54M | 0.15% | 160 |
|
|
2020
Q4 | $62.4M | Buy |
254,748
+4,961
| +2% | +$1.28M | 0.14% | 156 |
|
|
2020
Q3 | $70.4M | Hold |
249,787
| – | – | 0.19% | 126 |
|
|
2020
Q2 | $66.8M | Sell |
249,787
-7,546
| -3% | -$2.27M | 0.19% | 123 |
|
|
2020
Q1 | $81.4M | Buy |
257,333
+3,028
| +1% | +$919K | 0.28% | 81 |
|
|
2019
Q4 | $75.5M | Sell |
254,305
-1,154
| -0.5% | -$320K | 0.21% | 114 |
|
|
2019
Q3 | $59.5M | Buy |
255,459
+11,261
| +5% | +$2.62M | 0.19% | 132 |
|
|
2019
Q2 | $57.1M | Buy |
244,198
+31,150
| +15% | +$7.19M | 0.19% | 125 |
|
|
2019
Q1 | $50.4M | Buy |
213,048
+7,921
| +4% | +$2.49M | 0.19% | 120 |
|
|
2018
Q4 | $66.6M | Buy |
205,127
+11,434
| +6% | +$3.65M | 0.27% | 84 |
|
|
2018
Q3 | $68.4M | Sell |
193,693
-971
| -0.5% | -$334K | 0.28% | 78 |
|
|
2018
Q2 | $56.2M | Buy |
194,664
+11,770
| +6% | +$3.31M | 0.25% | 90 |
|
|
2018
Q1 | $50.1M | Buy |
182,894
+4,575
| +3% | +$1.42M | 0.25% | 93 |
|
|
2017
Q4 | $56.8M | Buy |
178,319
+1,796
| +1% | +$576K | 0.28% | 80 |
|
|
2017
Q3 | $54.7M | Buy |
176,523
+7,138
| +4% | +$2.11M | 0.3% | 79 |
|
|
2017
Q2 | $46.1M | Buy |
169,385
+13,864
| +9% | +$3.67M | 0.27% | 84 |
|
|
2017
Q1 | $41.8M | Buy |
155,521
+1,004
| +0.6% | +$284K | 0.28% | 82 |
|
|
2016
Q4 | $43.8M | Buy |
154,517
+12,655
| +9% | +$3.75M | 0.3% | 77 |
|
|
2016
Q3 | $44.4M | Buy |
141,862
+11,377
| +9% | +$3.37M | 0.36% | 61 |
|
|
2016
Q2 | $31.6M | Buy |
130,485
+10,975
| +9% | +$2.89M | 0.28% | 84 |
|
|
2016
Q1 | $31.1M | Buy |
119,510
+4,913
| +4% | +$1.3M | 0.31% | 74 |
|
|
2015
Q4 | $35.1M | Buy |
114,597
+7,050
| +7% | +$2.03M | 0.37% | 62 |
|
|
2015
Q3 | $31.4M | Buy |
107,547
+13,437
| +14% | +$4.44M | 0.4% | 60 |
|
|
2015
Q2 | $38M | Buy |
94,110
+13,101
| +16% | +$5.26M | 0.49% | 44 |
|
|
2015
Q1 | $34.2M | Buy |
81,009
+10,690
| +15% | +$4.21M | 0.49% | 47 |
|
|
2014
Q4 | $23.9M | Sell |
70,319
-6,709
| -9% | -$2.17M | 0.4% | 59 |
|
|
2014
Q3 | $25.5M | Buy |
+77,028
| New | +$25.4M | 0.4% | 57 |
|
Other funds holding BIIB
VCM
VPM
National Pension Service's BIIB Position: Q2 2026 in Review
National Pension Service increased its Biogen (BIIB) stake by 1.1% in Q2 2026, buying an estimated $841K and bringing the position to 406,064 shares worth $87.7M. The position accounts for 0.06% of the portfolio, ranked #246.
National Pension Service first reported a position in BIIB in Q3 2014 and has held it in 48 quarters since. The position peaked at $87.8M in Q2 2021. 842 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.
- National Pension Service held 406,064 shares of Biogen worth $87.7M as of Q2 2026.
- National Pension Service bought 4,397 Biogen shares in Q2 2026, an estimated $841K.
- Biogen made up 0.06% of National Pension Service's portfolio in Q2 2026, its #246 holding.
- National Pension Service first reported a position in Biogen in Q3 2014 and has held it in 48 quarters since.
- National Pension Service's Biogen position peaked at $87.8M in Q2 2021.
- 842 funds tracked by Wall St. Rank held Biogen as of Q2 2026.
Based on National Pension Service's 13F filing for Q2 2026, filed 13 Aug 2026.