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Oxford Asset Management’s Biogen BIIB Stock Holding History

Oxford Asset Management’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
2025
Q2 		– Sell
-2,529
Closed -$346K – 545
2025
Q1 		$346K Buy
+2,529
New +$362K 0.16% 220
2024
Q4 		– Sell
-3,388
Closed -$657K – 463
2024
Q3 		$657K Buy
+3,388
New +$709K 0.55% 39
2024
Q2 		– Sell
-1,008
Closed -$217K – 296
2024
Q1 		$217K Buy
+1,008
New +$236K 0.23% 184
2020
Q1 		– Sell
-29,893
Closed -$8.87M – 341
2019
Q4 		$8.87M Sell
29,893
-15,893
-35% -$4.41M 0.25% 85
2019
Q3 		$10.7M Sell
45,786
-1,958
-4% -$456K 0.26% 70
2019
Q2 		$11.2M Buy
47,744
+11,423
+31% +$2.64M 0.24% 71
2019
Q1 		$8.59M Sell
36,321
-7,861
-18% -$2.48M 0.19% 116
2018
Q4 		$13.3M Buy
44,182
+25,062
+131% +$8M 0.35% 43
2018
Q3 		$6.76M Sell
19,120
-22,148
-54% -$7.63M 0.14% 152
2018
Q2 		$12M Buy
41,268
+18,550
+82% +$5.22M 0.23% 64
2018
Q1 		$6.22M Buy
22,718
+10,633
+88% +$3.3M 0.13% 148
2017
Q4 		$3.89M Buy
12,085
+5,257
+77% +$1.69M 0.08% 293
2017
Q3 		$2.12M Sell
6,828
-7,670
-53% -$2.27M 0.04% 601
2017
Q2 		$3.93M Sell
14,498
-6,997
-33% -$1.85M 0.08% 268
2017
Q1 		$5.88M Sell
21,495
-19,242
-47% -$5.44M 0.14% 127
2016
Q4 		$11.6M Buy
+40,737
New +$12.1M 0.41% 41
2016
Q3 		– Sell
-26,021
Closed -$6.29M – 772
2016
Q2 		$6.29M Sell
26,021
-25,015
-49% -$6.59M 0.21% 105
2016
Q1 		$13.3M Buy
+51,036
New +$13.5M 0.38% 44
2015
Q2 		– Sell
-27,946
Closed -$11.8M – 665
2015
Q1 		$11.8M Buy
27,946
+11,727
+72% +$4.62M 0.3% 61
2014
Q4 		$5.57M Buy
+16,219
New +$5.25M 0.12% 181
2014
Q2 		– Sell
-7,674
Closed -$2.35M – 694
2014
Q1 		$2.35M Buy
+7,674
New +$2.44M 0.07% 330

Other funds holding BIIB

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Oxford Asset Management's BIIB Position: Q2 2025 in Review

Oxford Asset Management sold out of Biogen (BIIB) in Q2 2025, closing a stake of 2,529 shares — an estimated $346K sold.

Oxford Asset Management first reported a position in BIIB in Q1 2014 and held it in 21 quarters. The position peaked at $13.3M in Q4 2018. 866 funds tracked by Wall St. Rank hold BIIB as of Q2 2025.

  • Oxford Asset Management reported no remaining Biogen position as of Q2 2025 after selling out during the quarter.
  • Oxford Asset Management sold 2,529 Biogen shares in Q2 2025, an estimated $346K.
  • Oxford Asset Management first reported a position in Biogen in Q1 2014 and held it in 21 quarters.
  • Oxford Asset Management's Biogen position peaked at $13.3M in Q4 2018.
  • 866 funds tracked by Wall St. Rank held Biogen as of Q2 2025.

Based on Oxford Asset Management's 13F filing for Q2 2025, filed 14 Aug 2025.