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Xponance’s Biogen BIIB Stock Holding History

Xponance’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 		$6.01M Buy
27,821
+1,365
+5% +$261K 0.04% 341
2026
Q1 		$4.85M Buy
26,456
+3,418
+15% +$630K 0.03% 367
2025
Q4 		$4.05M Buy
23,038
+1,714
+8% +$280K 0.03% 383
2025
Q3 		$2.99M Sell
21,324
-55
-0.3% -$7.43K 0.02% 443
2025
Q2 		$2.68M Buy
21,379
+281
+1% +$35K 0.02% 470
2025
Q1 		$2.89M Buy
21,098
+363
+2% +$51.9K 0.03% 434
2024
Q4 		$3.17M Sell
20,735
-290
-1% -$48.9K 0.03% 405
2024
Q3 		$4.08M Sell
21,025
-56
-0.3% -$11.7K 0.04% 353
2024
Q2 		$4.89M Buy
21,081
+45
+0.2% +$9.78K 0.05% 288
2024
Q1 		$4.54M Buy
21,036
+989
+5% +$232K 0.05% 321
2023
Q4 		$5.19M Sell
20,047
-1,246
-6% -$306K 0.06% 253
2023
Q3 		$5.47M Buy
21,293
+1,446
+7% +$387K 0.07% 224
2023
Q2 		$5.65M Buy
19,847
+67
+0.3% +$19.9K 0.08% 227
2023
Q1 		$5.5M Buy
19,780
+497
+3% +$138K 0.08% 234
2022
Q4 		$5.34M Buy
19,283
+4,183
+28% +$1.18M 0.09% 226
2022
Q3 		$4.03M Buy
15,100
+2,570
+21% +$546K 0.08% 229
2022
Q2 		$2.56M Buy
12,530
+2,739
+28% +$560K 0.05% 318
2022
Q1 		$2.06M Buy
9,791
+364
+4% +$79.2K 0.03% 366
2021
Q4 		$2.26M Buy
9,427
+1,894
+25% +$487K 0.04% 349
2021
Q3 		$2.13M Sell
7,533
-810
-10% -$265K 0.04% 332
2021
Q2 		$2.89M Sell
8,343
-2,953
-26% -$895K 0.05% 279
2021
Q1 		$3.16M Sell
11,296
-229
-2% -$61.8K 0.07% 232
2020
Q4 		$2.82M Sell
11,525
-9,545
-45% -$2.46M 0.06% 253
2020
Q3 		$5.98M Sell
21,070
-2,539
-11% -$708K 0.15% 124
2020
Q2 		$6.32M Buy
+23,609
New +$7.1M 0.16% 127

Other funds holding BIIB

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 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

Xponance's BIIB Position: Q2 2026 in Review

Xponance increased its Biogen (BIIB) stake by 5.2% in Q2 2026, buying an estimated $261K and bringing the position to 27,821 shares worth $6.01M. The position accounts for 0.04% of the portfolio, ranked #341.

Xponance first reported a position in BIIB in Q2 2020 and has held it in 25 quarters since. The position peaked at $6.32M in Q2 2020. 1,041 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Xponance held 27,821 shares of Biogen worth $6.01M as of Q2 2026.
  • Xponance bought 1,365 Biogen shares in Q2 2026, an estimated $261K.
  • Biogen made up 0.04% of Xponance's portfolio in Q2 2026, its #341 holding.
  • Xponance first reported a position in Biogen in Q2 2020 and has held it in 25 quarters since.
  • Xponance's Biogen position peaked at $6.32M in Q2 2020.
  • 1,041 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Xponance's 13F filing for Q2 2026, filed 10 Aug 2026.