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AIA Group’s Biogen BIIB Stock Holding History

AIA Group’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 		$1.2M Sell
5,545
-3,784
-41% -$724K 0.02% 239
2026
Q1 		$1.71M Buy
9,329
+7,054
+310% +$1.3M 0.02% 225
2025
Q4 		$400K Sell
2,275
-19,886
-90% -$3.25M 0.01% 315
2025
Q3 		$3.1M Buy
22,161
+15,309
+223% +$2.07M 0.05% 187
2025
Q2 		$861K Buy
6,852
+2,006
+41% +$250K 0.02% 237
2025
Q1 		$663K Buy
+4,846
New +$693K 0.02% 246
2024
Q4 		– Sell
-1,411
Closed -$274K – 299
2024
Q3 		$274K Buy
1,411
+135
+11% +$28.2K 0.01% 270
2024
Q2 		$296K Sell
1,276
-188
-13% -$40.9K 0.01% 263
2024
Q1 		$316K Sell
1,464
-99
-6% -$23.2K 0.01% 269
2023
Q4 		$404K Sell
1,563
-141
-8% -$34.6K 0.02% 244
2023
Q3 		$438K Buy
1,704
+80
+5% +$21.4K 0.02% 223
2023
Q2 		$463K Sell
1,624
-2,348
-59% -$699K 0.02% 254
2023
Q1 		$1.1M Sell
3,972
-200
-5% -$55.3K 0.06% 143
2022
Q4 		$1.16M Buy
4,172
+3,452
+479% +$975K 0.07% 120
2022
Q3 		$192K Sell
720
-5,580
-89% -$1.19M 0.01% 297
2022
Q2 		$1.28M Buy
6,300
+4,103
+187% +$839K 0.07% 123
2022
Q1 		$463K Buy
2,197
+652
+42% +$142K 0.02% 245
2021
Q4 		$371K Sell
1,545
-118
-7% -$30.3K 0.02% 207
2021
Q3 		$471K Buy
1,663
+614
+59% +$201K 0.03% 177
2021
Q2 		$340K Buy
+1,049
New +$318K 0.02% 167
2021
Q1 		– Sell
-2,040
Closed -$537K – 180
2020
Q4 		$537K Buy
+2,040
New +$526K 0.06% 114

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

AIA Group's BIIB Position: Q2 2026 in Review

AIA Group reduced its Biogen (BIIB) stake by 41% in Q2 2026, selling an estimated $724K and leaving 5,545 shares worth $1.2M. The position accounts for 0.02% of the portfolio, ranked #239.

AIA Group first reported a position in BIIB in Q4 2020 and has held it in 21 quarters since. The position peaked at $3.1M in Q3 2025. 1,043 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • AIA Group held 5,545 shares of Biogen worth $1.2M as of Q2 2026.
  • AIA Group sold 3,784 Biogen shares in Q2 2026, an estimated $724K.
  • Biogen made up 0.02% of AIA Group's portfolio in Q2 2026, its #239 holding.
  • AIA Group first reported a position in Biogen in Q4 2020 and has held it in 21 quarters since.
  • AIA Group's Biogen position peaked at $3.1M in Q3 2025.
  • 1,043 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on AIA Group's 13F filing for Q2 2026, filed 31 Jul 2026.