F.L. Putnam Investment Management’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
$402K Hold
1,861
﹤0.01% 506
2026
Q1
$341K Sell
1,861
-37
-2% -$6.82K 0.01% 491
2025
Q4
$334K Sell
1,898
-223
-11% -$36.4K ﹤0.01% 499
2025
Q3
$297K Buy
2,121
+231
+12% +$31.2K ﹤0.01% 504
2025
Q2
$237K Sell
1,890
-190
-9% -$23.7K ﹤0.01% 535
2025
Q1
$285K Buy
2,080
+189
+10% +$27K 0.01% 499
2024
Q4
$289K Sell
1,891
-51
-3% -$8.6K 0.01% 495
2024
Q3
$376K Sell
1,942
-180
-8% -$37.7K 0.01% 467
2024
Q2
$492K Buy
2,122
+4
+0.2% +$869 0.01% 418
2024
Q1
$457K Buy
2,118
+187
+10% +$43.8K 0.01% 356
2023
Q4
$500K Sell
1,931
-185
-9% -$45.4K 0.01% 333
2023
Q3
$544K Sell
2,116
-2
-0.1% -$535 0.02% 319
2023
Q2
$603K Buy
2,118
+52
+3% +$15.5K 0.02% 326
2023
Q1
$574K Buy
2,066
+58
+3% +$16K 0.02% 282
2022
Q4
$556K Sell
2,008
-72
-3% -$20.3K 0.02% 281
2022
Q3
$555K Hold
2,080
0.02% 267
2022
Q2
$424K Sell
2,080
-3
-0.1% -$613 0.02% 297
2022
Q1
$439K Sell
2,083
-58
-3% -$12.6K 0.01% 295
2021
Q4
$514K Hold
2,141
0.02% 281
2021
Q3
$606K Hold
2,141
0.02% 259
2021
Q2
$741K Buy
2,141
+930
+77% +$282K 0.03% 247
2021
Q1
$339K Sell
1,211
-67
-5% -$18.1K 0.01% 285
2020
Q4
$313K Sell
1,278
-1,150
-47% -$297K 0.01% 270
2020
Q3
$689K Sell
2,428
-2
-0.1% -$558 0.04% 179
2020
Q2
$650K Sell
2,430
-1,116
-31% -$335K 0.04% 180
2020
Q1
$1.12M Sell
3,546
-192
-5% -$58.3K 0.09% 136
2019
Q4
$1.11M Hold
3,738
0.07% 157
2019
Q3
$870K Buy
3,738
+120
+3% +$27.9K 0.06% 161
2019
Q2
$846K Hold
3,618
0.07% 132
2019
Q1
$855K Sell
3,618
-44
-1% -$13.9K 0.07% 133
2018
Q4
$1.1M Buy
3,662
+2,500
+215% +$798K 0.12% 121
2018
Q3
$411K Hold
1,162
0.04% 163
2018
Q2
$337K Sell
1,162
-2,371
-67% -$667K 0.03% 176
2018
Q1
$967K Sell
3,533
-18
-0.5% -$5.59K 0.09% 139
2017
Q4
$1.13M Buy
3,551
+29
+0.8% +$9.3K 0.1% 137
2017
Q3
$1.1M Buy
+3,522
New +$1.04M 0.11% 139
2017
Q1
$981K Buy
3,588
+2,210
+160% +$625K 0.1% 133
2016
Q4
$391K Buy
1,378
+30
+2% +$8.89K 0.04% 162
2016
Q3
$422K Hold
1,348
0.05% 149
2016
Q2
$326K Sell
1,348
-15,167
-92% -$4M 0.04% 144
2016
Q1
$4.3M Sell
16,515
-13,223
-44% -$3.49M 0.52% 58
2015
Q4
$9.11M Buy
29,738
+1,449
+5% +$416K 1.07% 38
2015
Q3
$8.26M Sell
28,289
-55
-0.2% -$18.2K 1.02% 38
2015
Q2
$11.4M Buy
28,344
+558
+2% +$224K 1.28% 28
2015
Q1
$11.7M Buy
27,786
+3,556
+15% +$1.4M 1.31% 28
2014
Q4
$8.22M Sell
24,230
-30
-0.1% -$9.71K 0.96% 39
2014
Q3
$8.03M Buy
24,260
+963
+4% +$318K 0.94% 40
2014
Q2
$7.35M Sell
23,297
-444
-2% -$134K 0.85% 43
2014
Q1
$7.26M Buy
23,741
+2,019
+9% +$641K 0.86% 37
2013
Q4
$6.07M Buy
21,722
+940
+5% +$243K 0.73% 48
2013
Q3
$5M Hold
20,782
0.67% 54
2013
Q2
$4.47M Buy
+20,782
New +$4.44M 0.64% 60

Other funds holding BIIB

F.L. Putnam Investment Management's BIIB Position: Q2 2026 in Review

F.L. Putnam Investment Management held its Biogen (BIIB) position steady in Q2 2026 at 1,861 shares worth $402K. The position accounts for ﹤0.01% of the portfolio, ranked #506.

F.L. Putnam Investment Management first reported a position in BIIB in Q2 2013 and has held it in 52 quarters since. The position peaked at $11.7M in Q1 2015. 623 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • F.L. Putnam Investment Management held 1,861 shares of Biogen worth $402K as of Q2 2026.
  • F.L. Putnam Investment Management left its Biogen share count unchanged in Q2 2026.
  • Biogen made up ﹤0.01% of F.L. Putnam Investment Management's portfolio in Q2 2026, its #506 holding.
  • F.L. Putnam Investment Management first reported a position in Biogen in Q2 2013 and has held it in 52 quarters since.
  • F.L. Putnam Investment Management's Biogen position peaked at $11.7M in Q1 2015.
  • 623 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on F.L. Putnam Investment Management's 13F filing for Q2 2026, filed 6 Aug 2026.