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IEQ Capital’s Biogen BIIB Stock Holding History

IEQ Capital’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 		$28.6M Sell
132,142
-19,934
-13% -$3.81M 0.13% 137
2026
Q1 		$27.9M Buy
152,076
+12,437
+9% +$2.29M 0.13% 143
2025
Q4 		$24.6M Buy
139,639
+1,358
+1% +$222K 0.07% 173
2025
Q3 		$19.4M Buy
138,281
+26,030
+23% +$3.52M 0.06% 176
2025
Q2 		$14.1M Buy
112,251
+42,522
+61% +$5.3M 0.09% 176
2025
Q1 		$9.54M Buy
69,729
+10,195
+17% +$1.46M 0.08% 194
2024
Q4 		$9.1M Buy
59,534
+55,514
+1,381% +$9.36M 0.09% 145
2024
Q3 		$779K Buy
4,020
+278
+7% +$58.2K 0.01% 611
2024
Q2 		$867K Buy
3,742
+609
+19% +$132K 0.01% 509
2024
Q1 		$676K Sell
3,133
-1,150
-27% -$269K 0.01% 544
2023
Q4 		$1.11M Sell
4,283
-669
-14% -$164K 0.02% 406
2023
Q3 		$1.27M Buy
4,952
+827
+20% +$221K 0.03% 341
2023
Q2 		$1.17M Buy
4,125
+426
+12% +$127K 0.02% 360
2023
Q1 		$1.03M Buy
3,699
+127
+4% +$35.1K 0.02% 385
2022
Q4 		$989K Buy
3,572
+278
+8% +$78.5K 0.03% 369
2022
Q3 		$879K Buy
3,294
+1,051
+47% +$223K 0.02% 396
2022
Q2 		$457K Buy
2,243
+718
+47% +$147K 0.01% 497
2022
Q1 		$321K Buy
1,525
+522
+52% +$114K 0.01% 621
2021
Q4 		$241K Sell
1,003
-1,097
-52% -$282K 0.01% 646
2021
Q3 		$593K Buy
2,100
+514
+32% +$168K 0.02% 386
2021
Q2 		$549K Buy
1,586
+343
+28% +$104K 0.02% 349
2021
Q1 		$348K Buy
+1,243
New +$335K 0.01% 340
2020
Q4 		– Sell
-1,035
Closed -$294K – 240
2020
Q3 		$294K Buy
+1,035
New +$289K 0.02% 301
2020
Q2 		– Sell
-1,540
Closed -$488K – 328
2020
Q1 		$488K Buy
1,540
+505
+49% +$153K 0.04% 210
2019
Q4 		$308K Buy
+1,035
New +$287K 0.03% 308

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

IEQ Capital's BIIB Position: Q2 2026 in Review

IEQ Capital reduced its Biogen (BIIB) stake by 13% in Q2 2026, selling an estimated $3.81M and leaving 132,142 shares worth $28.6M. The position accounts for 0.13% of the portfolio, ranked #137.

IEQ Capital first reported a position in BIIB in Q4 2019 and has held it in 25 quarters since. 1,043 funds tracked by Wall St. Rank hold BIIB as of Q2 2026.

  • IEQ Capital held 132,142 shares of Biogen worth $28.6M as of Q2 2026.
  • IEQ Capital sold 19,934 Biogen shares in Q2 2026, an estimated $3.81M.
  • Biogen made up 0.13% of IEQ Capital's portfolio in Q2 2026, its #137 holding.
  • IEQ Capital first reported a position in Biogen in Q4 2019 and has held it in 25 quarters since.
  • 1,043 funds tracked by Wall St. Rank held Biogen as of Q2 2026.

Based on IEQ Capital's 13F filing for Q2 2026, filed 11 Aug 2026.