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Tidal Investments’s Biogen BIIB Stock Holding History

Tidal Investments’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 		$13.8M Buy
63,842
+5,256
+9% +$1.01M 0.02% 571
2026
Q1 		$10.9M Buy
58,586
+28,108
+92% +$5.18M 0.02% 533
2025
Q4 		$5.36M Buy
30,478
+5,442
+22% +$889K 0.01% 627
2025
Q3 		$3.51M Buy
25,036
+3,052
+14% +$413K 0.01% 685
2025
Q2 		$2.76M Buy
21,984
+2,120
+11% +$264K 0.02% 613
2025
Q1 		$2.72M Buy
19,864
+905
+5% +$129K 0.02% 560
2024
Q4 		$2.9M Buy
18,959
+9,947
+110% +$1.68M 0.02% 561
2024
Q3 		$1.75M Buy
9,012
+1,082
+14% +$226K 0.02% 729
2024
Q2 		$1.84M Sell
7,930
-2,281
-22% -$496K 0.02% 590
2024
Q1 		$2.2M Buy
10,211
+5,082
+99% +$1.19M 0.04% 497
2023
Q4 		$1.33M Sell
5,129
-1,117
-18% -$274K 0.03% 522
2023
Q3 		$1.61M Sell
6,246
-1,185
-16% -$317K 0.05% 376
2023
Q2 		$2.12M Sell
7,431
-1,639
-18% -$488K 0.06% 302
2023
Q1 		$2.52M Buy
9,070
+423
+5% +$117K 0.08% 235
2022
Q4 		$2.4M Sell
8,647
-2,700
-24% -$763K 0.09% 239
2022
Q3 		$3.03M Sell
11,347
-337
-3% -$71.6K 0.13% 152
2022
Q2 		$2.38M Buy
11,684
+1,574
+16% +$322K 0.09% 195
2022
Q1 		$2.13M Buy
10,110
+4,592
+83% +$999K 0.06% 235
2021
Q4 		$1.32M Buy
5,518
+2,449
+80% +$630K 0.04% 328
2021
Q3 		$869K Buy
3,069
+599
+24% +$196K 0.03% 370
2021
Q2 		$855K Buy
2,470
+675
+38% +$204K 0.03% 320
2021
Q1 		$502K Buy
1,795
+524
+41% +$141K 0.02% 289
2020
Q4 		$311K Buy
1,271
+454
+56% +$117K 0.02% 307
2020
Q3 		$232K Buy
+817
New +$228K 0.03% 213
2020
Q2 		– Sell
-827
Closed -$262K – 305
2020
Q1 		$262K Buy
827
+309
+60% +$93.8K 0.08% 182
2019
Q4 		$154K Buy
+518
New +$144K 0.06% 198

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

Tidal Investments's BIIB Position: Q2 2026 in Review

Tidal Investments increased its Biogen (BIIB) stake by 9% in Q2 2026, buying an estimated $1.01M and bringing the position to 63,842 shares worth $13.8M. The position accounts for 0.02% of the portfolio, ranked #571.

Tidal Investments first reported a position in BIIB in Q4 2019 and has held it in 26 quarters since. 1,045 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • Tidal Investments held 63,842 shares of Biogen worth $13.8M as of Q2 2026.
  • Tidal Investments bought 5,256 Biogen shares in Q2 2026, an estimated $1.01M.
  • Biogen made up 0.02% of Tidal Investments's portfolio in Q2 2026, its #571 holding.
  • Tidal Investments first reported a position in Biogen in Q4 2019 and has held it in 26 quarters since.
  • 1,045 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on Tidal Investments's 13F filing for Q2 2026, filed 13 Aug 2026.