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D.A. Davidson & Co’s Biogen BIIB Stock Holding History

D.A. Davidson & Co’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
Q1 		$223K Buy
+1,218
New +$224K ﹤0.01% 1455
2025
Q2 		– Sell
-1,518
Closed -$208K – 1450
2025
Q1 		$208K Sell
1,518
-99
-6% -$14.2K ﹤0.01% 1313
2024
Q4 		$247K Sell
1,617
-386
-19% -$65.1K ﹤0.01% 1263
2024
Q3 		$388K Sell
2,003
-1,193
-37% -$250K ﹤0.01% 1105
2024
Q2 		$741K Buy
3,196
+1,165
+57% +$253K 0.01% 840
2024
Q1 		$438K Sell
2,031
-54
-3% -$12.6K ﹤0.01% 1032
2023
Q4 		$540K Sell
2,085
-740
-26% -$182K 0.01% 921
2023
Q3 		$726K Buy
2,825
+583
+26% +$156K 0.01% 781
2023
Q2 		$639K Sell
2,242
-75
-3% -$22.3K 0.01% 842
2023
Q1 		$644K Sell
2,317
-2,271
-49% -$628K 0.01% 821
2022
Q4 		$1.27M Sell
4,588
-3,289
-42% -$929K 0.02% 558
2022
Q3 		$2.1M Sell
7,877
-4,375
-36% -$929K 0.03% 397
2022
Q2 		$2.5M Sell
12,252
-1,172
-9% -$240K 0.03% 373
2022
Q1 		$2.83M Buy
13,424
+791
+6% +$172K 0.03% 388
2021
Q4 		$3.03M Buy
12,633
+9,142
+262% +$2.35M 0.03% 361
2021
Q3 		$988K Sell
3,491
-73
-2% -$23.9K 0.01% 640
2021
Q2 		$1.23M Sell
3,564
-1,258
-26% -$381K 0.01% 567
2021
Q1 		$1.35M Buy
4,822
+2,647
+122% +$714K 0.02% 508
2020
Q4 		$533K Sell
2,175
-301
-12% -$77.7K 0.01% 694
2020
Q3 		$702K Buy
2,476
+56
+2% +$15.6K 0.01% 534
2020
Q2 		$647K Sell
2,420
-68
-3% -$20.4K 0.01% 534
2020
Q1 		$787K Buy
2,488
+45
+2% +$13.7K 0.02% 495
2019
Q4 		$725K Sell
2,443
-52
-2% -$14.4K 0.01% 590
2019
Q3 		$581K Sell
2,495
-147
-6% -$34.2K 0.01% 623
2019
Q2 		$618K Sell
2,642
-19,917
-88% -$4.6M 0.01% 591
2019
Q1 		$5.35M Sell
22,559
-589
-3% -$185K 0.09% 174
2018
Q4 		$6.97M Sell
23,148
-628
-3% -$200K 0.14% 123
2018
Q3 		$8.4M Buy
23,776
+94
+0.4% +$32.4K 0.15% 118
2018
Q2 		$6.87M Buy
23,682
+3,713
+19% +$1.04M 0.13% 129
2018
Q1 		$5.47M Sell
19,969
-185
-0.9% -$57.4K 0.11% 154
2017
Q4 		$6.42M Buy
20,154
+125
+0.6% +$40.1K 0.13% 135
2017
Q3 		$6.27M Buy
20,029
+34
+0.2% +$10.1K 0.12% 173
2017
Q2 		$5.42M Buy
19,995
+93
+0.5% +$24.6K 0.12% 149
2017
Q1 		$5.44M Sell
19,902
-999
-5% -$282K 0.13% 138
2016
Q4 		$5.92M Buy
20,901
+3,174
+18% +$941K 0.13% 154
2016
Q3 		$5.54M Buy
17,727
+40
+0.2% +$11.8K 0.14% 151
2016
Q2 		$4.27M Buy
17,687
+770
+5% +$203K 0.13% 160
2016
Q1 		$4.4M Buy
16,917
+725
+4% +$192K 0.14% 147
2015
Q4 		$4.96M Sell
16,192
-37
-0.2% -$10.6K 0.16% 137
2015
Q3 		$4.73M Buy
16,229
+4,241
+35% +$1.4M 0.17% 133
2015
Q2 		$4.84M Buy
11,988
+181
+2% +$72.6K 0.16% 135
2015
Q1 		$4.98M Sell
11,807
-1,256
-10% -$495K 0.16% 133
2014
Q4 		$4.43M Buy
13,063
+1,910
+17% +$618K 0.14% 148
2014
Q3 		$3.69M Buy
11,153
+540
+5% +$178K 0.12% 156
2014
Q2 		$3.34M Buy
10,613
+441
+4% +$133K 0.11% 176
2014
Q1 		$3.11M Buy
10,172
+562
+6% +$178K 0.11% 182
2013
Q4 		$2.68M Buy
9,610
+880
+10% +$228K 0.1% 207
2013
Q3 		$2.1M Buy
8,730
+195
+2% +$43.6K 0.09% 209
2013
Q2 		$1.83M Buy
+8,535
New +$1.82M 0.09% 224

Other funds holding BIIB

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

D.A. Davidson & Co's BIIB Position: Q1 2026 in Review

D.A. Davidson & Co opened a new position in Biogen (BIIB) in Q1 2026: 1,218 shares worth $223K. The stake represents ﹤0.01% of the portfolio and ranks #1455 among its holdings. This is a return to the name: D.A. Davidson & Co previously reported a position in BIIB as recently as Q1 2025.

D.A. Davidson & Co first reported a position in BIIB in Q2 2013 and has held it in 49 quarters since. The position peaked at $8.4M in Q3 2018. 1,002 funds tracked by Wall St. Rank hold BIIB as of Q1 2026.

  • D.A. Davidson & Co held 1,218 shares of Biogen worth $223K as of Q1 2026.
  • Biogen was a new D.A. Davidson & Co position in Q1 2026.
  • Biogen made up ﹤0.01% of D.A. Davidson & Co's portfolio in Q1 2026, its #1455 holding.
  • D.A. Davidson & Co first reported a position in Biogen in Q2 2013 and has held it in 49 quarters since.
  • D.A. Davidson & Co's Biogen position peaked at $8.4M in Q3 2018.
  • 1,002 funds tracked by Wall St. Rank held Biogen as of Q1 2026.

Based on D.A. Davidson & Co's 13F filing for Q1 2026, filed 5 May 2026.