Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$21.3M Buy
116,131
+107,501
+1,246% +$19.8M 0.05% 202
2025
Q4
$1.52M Buy
+8,630
New +$1.41M ﹤0.01% 882
2025
Q2
Sell
-15,802
Closed -$2.16M 1390
2025
Q1
$2.16M Buy
15,802
+1,302
+9% +$186K 0.02% 657
2024
Q4
$2.22M Buy
14,500
+6,379
+79% +$1.08M 0.02% 573
2024
Q3
$1.57M Buy
8,121
+1,661
+26% +$347K 0.01% 659
2024
Q2
$1.5M Buy
+6,460
New +$1.4M 0.01% 603
2023
Q4
Sell
-15,294
Closed -$3.93M 1002
2023
Q3
$3.93M Sell
15,294
-160,027
-91% -$42.8M 0.04% 288
2023
Q2
$49.9M Buy
175,321
+139,878
+395% +$41.6M 0.55% 37
2023
Q1
$9.85M Buy
+35,443
New +$9.81M 0.15% 162
2022
Q1
Sell
-23,381
Closed -$5.61M 1227
2021
Q4
$5.61M Buy
23,381
+3,185
+16% +$819K 0.06% 245
2021
Q3
$5.71M Sell
20,196
-2,610
-11% -$855K 0.06% 231
2021
Q2
$7.9M Buy
22,806
+9,715
+74% +$2.94M 0.12% 156
2021
Q1
$3.66M Sell
13,091
-54,630
-81% -$14.7M 0.09% 206
2020
Q4
$16.6M Buy
+67,721
New +$17.5M 0.26% 46
2020
Q1
Sell
-52,401
Closed -$15.5K 268
2019
Q4
$15.5K Buy
+52,401
New +$14.5M 0.03% 56
2018
Q2
Sell
-3,991
Closed -$1.27M 481
2018
Q1
$1.27M Hold
3,991
0.13% 149
2017
Q4
$1.27M Buy
+3,991
New +$1.28M 0.13% 149
2017
Q3
Sell
-6,099
Closed -$1.66M 341
2017
Q2
$1.66M Sell
6,099
-2,188
-26% -$579K 0.1% 203
2017
Q1
$2.27M Buy
8,287
+4,871
+143% +$1.38M 0.22% 75
2016
Q4
$969K Buy
+3,416
New +$1.01M 0.15% 153
2015
Q3
Sell
-5,819
Closed -$2.35M 325
2015
Q2
$2.35M Buy
5,819
+4,317
+287% +$1.73M 0.29% 84
2015
Q1
$634K Sell
1,502
-86
-5% -$33.9K 0.09% 252
2014
Q4
$539K Buy
+1,588
New +$514K 0.07% 279
2014
Q3
Sell
-10,195
Closed -$3.21M 340
2014
Q2
$3.21M Buy
+10,195
New +$3.07M 0.27% 100

Other funds holding BIIB

LMR Partners's BIIB Position: Q1 2026 in Review

LMR Partners increased its Biogen (BIIB) stake by 1,246% in Q1 2026, buying an estimated $19.8M and bringing the position to 116,131 shares worth $21.3M. The position accounts for 0.05% of the portfolio, ranked #202.

LMR Partners first reported a position in BIIB in Q2 2014 and has held it in 24 quarters since. The position peaked at $49.9M in Q2 2023. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • LMR Partners held 116,131 shares of Biogen worth $21.3M as of Q1 2026.
  • LMR Partners bought 107,501 Biogen shares in Q1 2026, an estimated $19.8M.
  • Biogen made up 0.05% of LMR Partners's portfolio in Q1 2026, its #202 holding.
  • LMR Partners first reported a position in Biogen in Q2 2014 and has held it in 24 quarters since.
  • LMR Partners's Biogen position peaked at $49.9M in Q2 2023.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on LMR Partners's 13F filing for Q1 2026, filed 15 May 2026.