ClearBridge Investments’s Biogen BIIB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q1
Sell
-1,584
Closed -$242K 707
2024
Q4
$242K Sell
1,584
-600,402
-100% -$101M ﹤0.01% 698
2024
Q3
$117M Sell
601,986
-866,836
-59% -$181M 0.09% 213
2024
Q2
$341M Sell
1,468,822
-92,838
-6% -$20.2M 0.28% 92
2024
Q1
$337M Sell
1,561,660
-117,642
-7% -$27.6M 0.27% 100
2023
Q4
$435M Sell
1,679,302
-143,880
-8% -$35.3M 0.37% 73
2023
Q3
$469M Sell
1,823,182
-4,482
-0.2% -$1.2M 0.45% 61
2023
Q2
$521M Sell
1,827,664
-37,081
-2% -$11M 0.47% 57
2023
Q1
$518M Buy
1,864,745
+59,170
+3% +$16.4M 0.5% 56
2022
Q4
$500M Sell
1,805,575
-70,065
-4% -$19.8M 0.49% 61
2022
Q3
$501M Sell
1,875,640
-91,570
-5% -$19.4M 0.51% 51
2022
Q2
$401M Sell
1,967,210
-543,782
-22% -$111M 0.37% 76
2022
Q1
$529M Sell
2,510,992
-12,410
-0.5% -$2.7M 0.4% 69
2021
Q4
$605M Sell
2,523,402
-840,525
-25% -$216M 0.41% 61
2021
Q3
$952M Sell
3,363,927
-201,185
-6% -$65.9M 0.68% 31
2021
Q2
$1.23B Sell
3,565,112
-403,932
-10% -$122M 0.86% 20
2021
Q1
$1.11B Buy
3,969,044
+370,371
+10% +$99.9M 0.83% 24
2020
Q4
$881M Sell
3,598,673
-418,011
-10% -$108M 0.68% 31
2020
Q3
$1.14B Sell
4,016,684
-63,962
-2% -$17.8M 0.98% 20
2020
Q2
$1.09B Sell
4,080,646
-326,665
-7% -$98.2M 0.99% 20
2020
Q1
$1.39B Sell
4,407,311
-730,787
-14% -$222M 1.51% 8
2019
Q4
$1.51B Sell
5,138,098
-1,094,579
-18% -$304M 1.25% 12
2019
Q3
$1.45B Sell
6,232,677
-46,421
-0.7% -$10.8M 1.27% 13
2019
Q2
$1.47B Sell
6,279,098
-2,313,259
-27% -$534M 1.27% 9
2019
Q1
$2.03B Sell
8,592,357
-137,488
-2% -$43.3M 1.79% 4
2018
Q4
$2.63B Sell
8,729,845
-115,604
-1% -$36.9M 2.66% 3
2018
Q3
$3.13B Sell
8,845,449
-683,638
-7% -$235M 2.69% 3
2018
Q2
$2.77B Buy
9,529,087
+340,828
+4% +$95.8M 2.26% 5
2018
Q1
$2.52B Buy
9,188,259
+46,608
+0.5% +$14.5M 2.37% 3
2017
Q4
$2.91B Sell
9,141,651
-109,176
-1% -$35M 2.69% 3
2017
Q3
$2.9B Sell
9,250,827
-43,073
-0.5% -$12.8M 2.79% 3
2017
Q2
$2.52B Buy
9,293,900
+172,875
+2% +$45.7M 2.48% 3
2017
Q1
$2.49B Buy
9,121,025
+351,224
+4% +$99.3M 2.51% 3
2016
Q4
$2.49B Buy
8,769,801
+302,218
+4% +$89.6M 2.73% 3
2016
Q3
$2.65B Buy
8,467,583
+195,904
+2% +$58M 2.98% 3
2016
Q2
$2B Sell
8,271,679
-193,780
-2% -$51.1M 2.36% 3
2016
Q1
$2.2B Sell
8,465,459
-104,449
-1% -$27.6M 2.63% 3
2015
Q4
$2.63B Sell
8,569,908
-13,716
-0.2% -$3.94M 3.04% 3
2015
Q3
$2.5B Buy
8,583,624
+581,757
+7% +$192M 3% 3
2015
Q2
$3.23B Sell
8,001,867
-23,374
-0.3% -$9.38M 3.42% 2
2015
Q1
$3.39B Sell
8,025,241
-206,429
-3% -$81.4M 3.52% 2
2014
Q4
$2.79B Buy
8,231,670
+341,907
+4% +$111M 2.94% 2
2014
Q3
$2.61B Sell
7,889,763
-4,111
-0.1% -$1.36M 2.87% 2
2014
Q2
$2.49B Buy
7,893,874
+190,390
+2% +$57.3M 2.8% 1
2014
Q1
$2.36B Sell
7,703,484
-500,849
-6% -$159M 2.8% 2
2013
Q4
$2.29B Sell
8,204,333
-22,029
-0.3% -$5.7M 2.86% 1
2013
Q3
$1.98B Sell
8,226,362
-38,894
-0.5% -$8.7M 2.77% 1
2013
Q2
$1.78B Buy
+8,265,256
New +$1.77B 2.72% 1

Other funds holding BIIB

ClearBridge Investments's BIIB Position: Q1 2025 in Review

ClearBridge Investments sold out of Biogen (BIIB) in Q1 2025, closing a stake of 1,584 shares — an estimated $242K sold.

ClearBridge Investments first reported a position in BIIB in Q2 2013 and held it in 47 quarters. The position peaked at $3.39B in Q1 2015. 880 funds tracked by Wall St. Rank hold BIIB as of Q1 2025.

  • ClearBridge Investments reported no remaining Biogen position as of Q1 2025 after selling out during the quarter.
  • ClearBridge Investments sold 1,584 Biogen shares in Q1 2025, an estimated $242K.
  • ClearBridge Investments first reported a position in Biogen in Q2 2013 and held it in 47 quarters.
  • ClearBridge Investments's Biogen position peaked at $3.39B in Q1 2015.
  • 880 funds tracked by Wall St. Rank held Biogen as of Q1 2025.

Based on ClearBridge Investments's 13F filing for Q1 2025, filed 13 May 2025.