Teachers Retirement System of the State of Kentucky’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 | $2.47M | Hold |
11,437
| – | – | 0.02% | 689 |
|
|
2026
Q1 | $2.1M | Hold |
11,437
| – | – | 0.02% | 703 |
|
|
2025
Q4 | $2.01M | Hold |
11,437
| – | – | 0.02% | 727 |
|
|
2025
Q3 | $1.6M | Hold |
11,437
| – | – | 0.01% | 846 |
|
|
2025
Q2 | $1.44M | Buy |
11,437
+224
| +2% | +$27.9K | 0.01% | 887 |
|
|
2025
Q1 | $1.53M | Buy |
11,213
+301
| +3% | +$43K | 0.01% | 828 |
|
|
2024
Q4 | $1.67M | Hold |
10,912
| – | – | 0.01% | 799 |
|
|
2024
Q3 | $2.12M | Sell |
10,912
-620
| -5% | -$130K | 0.02% | 697 |
|
|
2024
Q2 | $2.67M | Sell |
11,532
-317
| -3% | -$68.9K | 0.02% | 563 |
|
|
2024
Q1 | $2.56M | Sell |
11,849
-638
| -5% | -$149K | 0.02% | 585 |
|
|
2023
Q4 | $3.23M | Sell |
12,487
-521
| -4% | -$128K | 0.03% | 472 |
|
|
2023
Q3 | $3.34M | Hold |
13,008
| – | – | 0.03% | 410 |
|
|
2023
Q2 | $3.71M | Sell |
13,008
-528
| -4% | -$157K | 0.04% | 405 |
|
|
2023
Q1 | $3.76M | Hold |
13,536
| – | – | 0.04% | 436 |
|
|
2022
Q4 | $3.75M | Hold |
13,536
| – | – | 0.04% | 425 |
|
|
2022
Q3 | $3.61M | Buy |
+13,536
| New | +$2.87M | 0.04% | 393 |
|
|
2022
Q1 | $2.22M | Sell |
10,525
-458
| -4% | -$99.6K | 0.02% | 587 |
|
|
2021
Q4 | $2.63M | Sell |
10,983
-757
| -6% | -$195K | 0.02% | 570 |
|
|
2021
Q3 | $3.32M | Hold |
11,740
| – | – | 0.03% | 489 |
|
|
2021
Q2 | $4.07M | Sell |
11,740
-69,490
| -86% | -$21.1M | 0.04% | 444 |
|
|
2021
Q1 | $22.7M | Buy |
81,230
+68,240
| +525% | +$18.4M | 0.22% | 111 |
|
|
2020
Q4 | $3.18M | Sell |
12,990
-1,500
| -10% | -$387K | 0.03% | 472 |
|
|
2020
Q3 | $4.11M | Sell |
14,490
-2,600
| -15% | -$725K | 0.05% | 399 |
|
|
2020
Q2 | $4.57M | Sell |
17,090
-35,770
| -68% | -$10.8M | 0.05% | 380 |
|
|
2020
Q1 | $16.7M | Sell |
52,860
-70,880
| -57% | -$21.5M | 0.23% | 103 |
|
|
2019
Q4 | $36.7M | Buy |
123,740
+66,630
| +117% | +$18.5M | 0.41% | 46 |
|
|
2019
Q3 | $13.3M | Buy |
57,110
+600
| +1% | +$140K | 0.16% | 174 |
|
|
2019
Q2 | $13.2M | Sell |
56,510
-32,750
| -37% | -$7.56M | 0.16% | 168 |
|
|
2019
Q1 | $21.1M | Sell |
89,260
-17,019
| -16% | -$5.36M | 0.26% | 94 |
|
|
2018
Q4 | $32M | Buy |
106,279
+2,870
| +3% | +$916K | 0.44% | 41 |
|
|
2018
Q3 | $36.5M | Buy |
103,409
+15,800
| +18% | +$5.44M | 0.44% | 35 |
|
|
2018
Q2 | $25.4M | Hold |
87,609
| – | – | 0.3% | 71 |
|
|
2018
Q1 | $24M | Buy |
87,609
+31,850
| +57% | +$9.89M | 0.29% | 74 |
|
|
2017
Q4 | $17.8M | Sell |
55,759
-3,581
| -6% | -$1.15M | 0.21% | 131 |
|
|
2017
Q3 | $18.6M | Buy |
59,340
+35,300
| +147% | +$10.5M | 0.22% | 118 |
|
|
2017
Q2 | $6.52M | Sell |
24,040
-33,737
| -58% | -$8.92M | 0.08% | 288 |
|
|
2017
Q1 | $15.8M | Sell |
57,777
-2,400
| -4% | -$679K | 0.2% | 138 |
|
|
2016
Q4 | $17.1M | Sell |
60,177
-14,684
| -20% | -$4.35M | 0.22% | 121 |
|
|
2016
Q3 | $23.4M | Buy |
74,861
+37,547
| +101% | +$11.1M | 0.3% | 81 |
|
|
2016
Q2 | $9.02M | Sell |
37,314
-1,600
| -4% | -$422K | 0.12% | 225 |
|
|
2016
Q1 | $10.1M | Sell |
38,914
-1,920
| -5% | -$507K | 0.13% | 203 |
|
|
2015
Q4 | $12.5M | Sell |
40,834
-1,460
| -3% | -$420K | 0.16% | 164 |
|
|
2015
Q3 | $12.3M | Sell |
42,294
-4,240
| -9% | -$1.4M | 0.16% | 161 |
|
|
2015
Q2 | $18.8M | Sell |
46,534
-2,500
| -5% | -$1M | 0.22% | 112 |
|
|
2015
Q1 | $20.7M | Buy |
49,034
+13,094
| +36% | +$5.16M | 0.24% | 104 |
|
|
2014
Q4 | $12.2M | Buy |
35,940
+200
| +0.6% | +$64.7K | 0.14% | 190 |
|
|
2014
Q3 | $11.8M | Sell |
35,740
-22,108
| -38% | -$7.29M | 0.14% | 197 |
|
|
2014
Q2 | $18.2M | Sell |
57,848
-2,600
| -4% | -$783K | 0.21% | 121 |
|
|
2014
Q1 | $18.5M | Sell |
60,448
-900
| -1% | -$286K | 0.22% | 115 |
|
|
2013
Q4 | $17.2M | Sell |
61,348
-3,530
| -5% | -$913K | 0.2% | 135 |
|
|
2013
Q3 | $15.6M | Sell |
64,878
-2,800
| -4% | -$627K | 0.14% | 147 |
|
|
2013
Q2 | $14.6M | Buy |
+67,678
| New | +$14.5M | 0.14% | 151 |
|
Other funds holding BIIB
Teachers Retirement System of the State of Kentucky's BIIB Position: Q2 2026 in Review
Teachers Retirement System of the State of Kentucky held its Biogen (BIIB) position steady in Q2 2026 at 11,437 shares worth $2.47M. The position accounts for 0.02% of the portfolio, ranked #689.
Teachers Retirement System of the State of Kentucky first reported a position in BIIB in Q2 2013 and has held it in 52 quarters since. The position peaked at $36.7M in Q4 2019. 746 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.
- Teachers Retirement System of the State of Kentucky held 11,437 shares of Biogen worth $2.47M as of Q2 2026.
- Teachers Retirement System of the State of Kentucky left its Biogen share count unchanged in Q2 2026.
- Biogen made up 0.02% of Teachers Retirement System of the State of Kentucky's portfolio in Q2 2026, its #689 holding.
- Teachers Retirement System of the State of Kentucky first reported a position in Biogen in Q2 2013 and has held it in 52 quarters since.
- Teachers Retirement System of the State of Kentucky's Biogen position peaked at $36.7M in Q4 2019.
- 746 funds tracked by Wall St. Rank held Biogen as of Q2 2026.
Based on Teachers Retirement System of the State of Kentucky's 13F filing for Q2 2026, filed 12 Aug 2026.