Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$25.3K Buy
138
+12
+10% +$2.21K ﹤0.01% 573
2025
Q4
$22.2K Sell
126
-108
-46% -$17.6K ﹤0.01% 593
2025
Q3
$32.8K Sell
234
-50
-18% -$6.76K ﹤0.01% 545
2025
Q2
$35.7K Buy
284
+35
+14% +$4.36K ﹤0.01% 535
2025
Q1
$34.1K Sell
249
-441
-64% -$63K ﹤0.01% 528
2024
Q4
$106K Buy
690
+25
+4% +$4.22K 0.01% 419
2024
Q3
$129K Buy
+665
New +$139K 0.01% 412
2023
Q3
Sell
-829
Closed -$236K 313
2023
Q2
$236K Buy
829
+54
+7% +$16.1K 0.03% 237
2023
Q1
$215K Sell
775
-129
-14% -$35.7K 0.03% 241
2022
Q4
$250K Hold
904
0.04% 222
2022
Q3
$241K Buy
+904
New +$192K 0.04% 207
2021
Q4
Sell
-905
Closed -$256K 248
2021
Q3
$256K Sell
905
-25
-3% -$8.19K 0.04% 220
2021
Q2
$322K Hold
930
0.04% 200
2021
Q1
$260K Buy
930
+40
+4% +$10.8K 0.04% 208
2020
Q4
$218K Buy
+890
New +$230K 0.03% 214
2020
Q2
Sell
-769
Closed -$243K 213
2020
Q1
$243K Buy
769
+80
+12% +$24.3K 0.05% 185
2019
Q4
$205K Buy
+689
New +$191K 0.03% 219
2019
Q3
Sell
-879
Closed -$205K 191
2019
Q2
$205K Hold
879
0.04% 184
2019
Q1
$208K Sell
879
-180
-17% -$56.7K 0.04% 178
2018
Q4
$319K Sell
1,059
-104
-9% -$33.2K 0.05% 163
2018
Q3
$411K Hold
1,163
0.07% 152
2018
Q2
$337K Hold
1,163
0.06% 155
2018
Q1
$319K Sell
1,163
-3,492
-75% -$1.08M 0.05% 164
2017
Q4
$1.48M Sell
4,655
-214
-4% -$68.7K 0.23% 99
2017
Q3
$1.52M Buy
4,869
+4,050
+495% +$1.2M 0.24% 99
2017
Q2
$222K Hold
819
0.04% 190
2017
Q1
$224K Buy
819
+40
+5% +$11.3K 0.04% 195
2016
Q4
$221K Buy
779
+20
+3% +$5.93K 0.04% 190
2016
Q3
$237K Buy
+759
New +$225K 0.04% 189

Other funds holding BIIB

NBT Bank's BIIB Position: Q1 2026 in Review

NBT Bank increased its Biogen (BIIB) stake by 9.5% in Q1 2026, buying an estimated $2.21K and bringing the position to 138 shares worth $25.3K. The position accounts for ﹤0.01% of the portfolio, ranked #573.

NBT Bank first reported a position in BIIB in Q3 2016 and has held it in 29 quarters since. The position peaked at $1.52M in Q3 2017. 1,003 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • NBT Bank held 138 shares of Biogen worth $25.3K as of Q1 2026.
  • NBT Bank bought 12 Biogen shares in Q1 2026, an estimated $2.21K.
  • Biogen made up ﹤0.01% of NBT Bank's portfolio in Q1 2026, its #573 holding.
  • NBT Bank first reported a position in Biogen in Q3 2016 and has held it in 29 quarters since.
  • NBT Bank's Biogen position peaked at $1.52M in Q3 2017.
  • 1,003 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on NBT Bank's 13F filing for Q1 2026, filed 28 Apr 2026.