LSERS
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Louisiana State Employees Retirement System’s Biogen BIIB Stock Holding History

Louisiana State Employees Retirement System’s Portfolio BIIB Stock Details BIIB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$1.62M Hold
7,500
– – 0.02% 768
2026
Q1 		$1.37M Hold
7,500
– – 0.02% 813
2025
Q4 		$1.32M Sell
7,500
-10,900
-59% -$1.78M 0.02% 838
2025
Q3 		$2.58M Hold
18,400
– – 0.04% 401
2025
Q2 		$2.31M Sell
18,400
-200
-1% -$24.9K 0.04% 433
2025
Q1 		$2.55M Buy
18,600
+200
+1% +$28.6K 0.05% 337
2024
Q4 		$2.81M Sell
18,400
-900
-5% -$152K 0.05% 311
2024
Q3 		$3.74M Sell
19,300
-500
-3% -$105K 0.07% 225
2024
Q2 		$4.59M Hold
19,800
– – 0.09% 159
2024
Q1 		$4.27M Sell
19,800
-500
-2% -$117K 0.08% 184
2023
Q4 		$5.25M Sell
20,300
-200
-1% -$49.1K 0.11% 139
2023
Q3 		$5.27M Buy
20,500
+2,500
+14% +$669K 0.12% 123
2023
Q2 		$5.13M Buy
18,000
+1,400
+8% +$417K 0.11% 124
2023
Q1 		$4.62M Buy
16,600
+100
+0.6% +$27.7K 0.12% 130
2022
Q4 		$4.57M Sell
16,500
-600
-4% -$169K 0.13% 130
2022
Q3 		$4.57M Hold
17,100
– – 0.13% 117
2022
Q2 		$3.77M Hold
17,100
– – 0.1% 147
2022
Q1 		$3.77M Buy
17,100
+100
+0.6% +$21.7K 0.09% 176
2021
Q4 		$4.08M Hold
17,000
– – 0.09% 165
2021
Q3 		$4.81M Sell
17,000
-200
-1% -$65.5K 0.12% 125
2021
Q2 		$5.96M Sell
17,200
-100
-0.6% -$30.3K 0.14% 102
2021
Q1 		$4.84M Buy
17,300
+1,000
+6% +$270K 0.13% 116
2020
Q4 		$3.99M Buy
16,300
+8,300
+104% +$2.14M 0.12% 135
2020
Q3 		$2.27M Buy
8,000
+1,000
+14% +$279K 0.1% 164
2020
Q2 		$1.87M Sell
7,000
-700
-9% -$210K 0.11% 169
2020
Q1 		$2.44M Sell
7,700
-900
-10% -$273K 0.18% 96
2019
Q4 		$2.55M Sell
8,600
-300
-3% -$83.2K 0.13% 126
2019
Q3 		$2.07M Sell
8,900
-800
-8% -$186K 0.11% 169
2019
Q2 		$2.25M Sell
9,700
-700
-7% -$162K 0.11% 156
2019
Q1 		$2.46M Sell
10,400
-200
-2% -$63K 0.12% 133
2018
Q4 		$3.19M Sell
10,600
-1,200
-10% -$383K 0.18% 83
2018
Q3 		$4.17M Sell
11,800
-600
-5% -$207K 0.18% 79
2018
Q2 		$3.6M Sell
12,400
-500
-4% -$141K 0.16% 85
2018
Q1 		$3.53M Buy
12,900
+100
+0.8% +$31K 0.16% 98
2017
Q4 		$4.08M Sell
12,800
-400
-3% -$128K 0.19% 82
2017
Q3 		$4.13M Sell
13,200
-100
-0.8% -$29.6K 0.19% 84
2017
Q2 		$3.61M Hold
13,300
– – 0.18% 89
2017
Q1 		$3.64M Sell
13,300
-400
-3% -$113K 0.18% 85
2016
Q4 		$3.88M Sell
13,700
-200
-1% -$59.3K 0.2% 76
2016
Q3 		$4.35M Sell
13,900
-500
-3% -$148K 0.23% 64
2016
Q2 		$3.48M Sell
14,400
-200
-1% -$52.7K 0.18% 85
2016
Q1 		$3.8M Sell
14,600
-1,000
-6% -$264K 0.2% 76
2015
Q4 		$4.78M Sell
15,600
-1,600
-9% -$460K 0.24% 64
2015
Q3 		$5.02M Buy
17,200
+100
+0.6% +$33K 0.26% 61
2015
Q2 		$6.91M Buy
17,100
+200
+1% +$80.3K 0.33% 47
2015
Q1 		$7.14M Sell
16,900
-900
-5% -$355K 0.34% 45
2014
Q4 		$6.04M Sell
17,800
-300
-2% -$97.1K 0.28% 54
2014
Q3 		$5.99M Sell
18,100
-500
-3% -$165K 0.29% 51
2014
Q2 		$5.87M Sell
18,600
-100
-0.5% -$30.1K 0.27% 54
2014
Q1 		$5.72M Sell
18,700
-300
-2% -$95.2K 0.27% 56
2013
Q4 		$5.31M Buy
+19,000
New +$4.91M 0.25% 60

Other funds holding BIIB

Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
AIM
Artemis Investment Management Edinburgh, United Kingdom $11.2B AUM 80.72% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $116B AUM 46.87% 1-Year Est. Return
AAMU
AEGON Asset Management (UK) Edinburgh, United Kingdom $9.38B AUM 48.94% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $54.2B AUM 43.77% 1-Year Est. Return
ADEF
Adams Diversified Equity Fund Baltimore, Maryland $3.27B AUM 45.57% 1-Year Est. Return
Handelsbanken Fonder
Handelsbanken Fonder Stockholm, Sweden $35.1B AUM 47.76% 1-Year Est. Return
BPC
Banque Pictet & Cie Geneva 73, Switzerland $16B AUM 29.1% 1-Year Est. Return
HP
HealthInvest Partners Stockholm, Sweden $372M AUM 59.89% 1-Year Est. Return
Mirae Asset Global Investments
Mirae Asset Global Investments Seoul, South Korea $67.7B AUM 51.91% 1-Year Est. Return

Louisiana State Employees Retirement System's BIIB Position: Q2 2026 in Review

Louisiana State Employees Retirement System held its Biogen (BIIB) position steady in Q2 2026 at 7,500 shares worth $1.62M. The position accounts for 0.02% of the portfolio, ranked #768.

Louisiana State Employees Retirement System first reported a position in BIIB in Q4 2013 and has held it in 51 quarters since. The position peaked at $7.14M in Q1 2015. 269 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Louisiana State Employees Retirement System held 7,500 shares of Biogen worth $1.62M as of Q2 2026.
  • Louisiana State Employees Retirement System left its Biogen share count unchanged in Q2 2026.
  • Biogen made up 0.02% of Louisiana State Employees Retirement System's portfolio in Q2 2026, its #768 holding.
  • Louisiana State Employees Retirement System first reported a position in Biogen in Q4 2013 and has held it in 51 quarters since.
  • Louisiana State Employees Retirement System's Biogen position peaked at $7.14M in Q1 2015.
  • 269 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Louisiana State Employees Retirement System's 13F filing for Q2 2026, filed 20 Jul 2026.