13FBOX
BIOGEN INC · 13F Institutional Holdings
Options Calculator Rankings

BIOGEN INC

BIIB
Institutions
1050
Combined AUM (Q2 2026)
$31.76B
Combined Shares (Q2 2026)
147.1M
Overall Trend
Increase
All institutions combined
📥 Inflow (Q1 2026→Q2 2026)
+15.9M
555 · 138 New Buys · ≈
📤 Outflow (Q1 2026→Q2 2026)
-8.8M
383 · 90 Exit · ≈
⚖️ Net
+7.1M
Net Buy
💰 Net Value
≈ —
est. price
Latest AUM (Q2 2026)
$31.76B
Institutions
1050
New Buys
138
Adds
417
Reduces
293
Exits
90
Unchanged
202
Ownership TrendPortfolio %Prev Q %RankQ2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
FMR LLC
0.17%0.12%#117$3.94B18.2M$2.35B12.8M+5.4M+42.24%Add
BlackRock, Inc.
0.05%0.05%#271$3.45B16.0M$2.93B16.0M+11,135+0.07%Add
PRIMECAP MANAGEMENT CO/CA/
1.94%2.13%#11$3.27B15.2M$2.71B14.8M+396,999+2.69%Add
VANGUARD CAPITAL MANAGEMENT LLC
0.04%0.04%#307$2.09B9.7M$1.75B9.5M+113,700+1.19%Add
STATE STREET CORP
0.05%0.05%#294$1.59B7.3M$1.31B7.2M+176,405+2.46%Add
VANGUARD PORTFOLIO MANAGEMENT LLC
0.06%0.06%#230$1.43B6.6M$1.20B6.5M+73,209+1.12%Add
GEODE CAPITAL MANAGEMENT, LLC
0.05%0.05%#270$957.9M4.4M$793.4M4.3M+106,693+2.46%Add
WELLINGTON MANAGEMENT GROUP LLP
0.12%0.1%#154$673.6M3.1M$543.0M3.0M+155,828+5.26%Add
NORGES BANK
0.06%0.04%#249$557.4M2.6M$294.7M2.2M+426,647+19.81%Add
MORGAN STANLEY
0.03%0.02%#438$521.0M2.4M$315.4M2.3M+159,736+7.09%Add
AQR CAPITAL MANAGEMENT LLC
0.15%0.16%#130$416.9M1.9M$346.2M1.9M+13,302+0.69%Add
JPMORGAN CHASE & CO
0.02%0.02%#480$394.9M1.8M$378.1M2.0M-192,869-9.57%Reduce
Invesco Ltd.
0.03%0.05%#406$389.8M1.8M$320.0M1.7M+58,689+3.36%Add
SUSQUEHANNA INTERNATIONAL GROUP, LLP
0.03%0.03%#435$356.0M1.6M$262.9M1.4M+213,462+14.88%Add
UBS Group AG
0.04%0.01%#321$331.3M1.5M$96.6M526,650+1.0M+191.15%Add
Amundi
0.08%0.04%#200$327.7M1.5M$145.0M790,827+726,004+91.80%Add
Legal & General Group Plc
0.07%0.06%#225$322.6M1.5M$247.5M1.3M+143,457+10.63%Add
NORTHERN TRUST CORP
0.04%0.04%#365$308.9M1.4M$265.2M1.4M-17,089-1.18%Reduce
GOLDMAN SACHS GROUP INC
0.02%0.02%#469$274.5M1.3M$215.9M1.2M+92,896+7.89%Add
Boston Partners
0.24%0.33%#99$272.8M1.3M$311.7M1.7M-436,649-25.68%Reduce
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC
0.05%0.05%#286$271.2M1.3M$252.5M1.4M-122,400-8.89%Reduce
DIMENSIONAL FUND ADVISORS LP
0.04%0.04%#304$248.2M1.1M$197.9M1.1M+69,449+6.44%Add
Pacer Advisors, Inc.
0.72%0.4%#36$242.6M1.1M$121.1M660,408+462,573+70.04%Add
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
0.03%0.03%#396$241.5M1.1M$210.7M1.1M-31,731-2.76%Reduce
BANK OF AMERICA CORP /DE/
0.02%0.02%#573$241.2M1.1M$212.0M1.2M-40,141-3.47%Reduce
Alyeska Investment Group, L.P.
0.52%0.42%#54$201.4M932,374$147.6M805,050+127,324+15.82%Add
DEUTSCHE BANK AG\
0.06%0.06%#247$193.2M894,035$195.0M1.1M-169,793-15.96%Reduce
CITADEL ADVISORS LLC
0.02%0.02%#483$187.4M867,556$97.3M530,693+336,863+63.48%Add
Pictet Asset Management Holding SA
0.18%0.18%#112$184.1M851,819$168.3M913,328-61,509-6.73%Reduce
VANGUARD FIDUCIARY TRUST CO
0.04%0.04%#338$179.2M829,318$151.3M825,531+3,787+0.46%Add
CITIGROUP INC
0.06%0.04%#242$175.2M810,817$95.6M521,707+289,110+55.42%Add
Robeco Institutional Asset Management B.V.
0.21%0.2%#105$170.9M791,092$139.9M763,174+27,918+3.66%Add
FRED ALGER MANAGEMENT, LLC
0.57%0.59%#47$170.3M788,307$134.4M733,194+55,113+7.52%Add
PRICE T ROWE ASSOCIATES INC /MD/
0.02%0.01%#555$167.3M774,283$123.3M672,427+101,856+15.15%Add
Bank of New York Mellon Corp
0.03%0.03%#439$167.1M773,619$144.6M788,523-14,904-1.89%Reduce
MASSACHUSETTS FINANCIAL SERVICES CO /MA/
0.05%0.04%#254$163.1M744,892$133.7M720,629+24,263+3.37%Add
ROYAL BANK OF CANADA
0.02%0.02%#474$153.1M708,562$97.4M531,377+177,185+33.34%Add
Employees Provident Fund Board
0.87%0.98%#29$152.1M704,196$129.1M704,19600.00%Unchanged
LMR Partners LLP
0.55%0.11%#49$147.4M682,066$49.6M270,431+411,635+152.21%Add
FIRST TRUST ADVISORS LP
0.09%0.09%#189$147.4M682,021$123.6M673,958+8,063+1.20%Add
AustralianSuper Pty Ltd
0.63%0.59%#43$145.3M672,723$113.0M616,193+56,530+9.17%Add
Artemis Investment Management LLP
1.1%1.11%#22$123.4M570,974$104.8M571,571-597-0.10%Reduce
Zurcher Kantonalbank (Zurich Cantonalbank)
0.22%0.21%#103$116.7M540,001$95.7M522,155+17,846+3.42%Add
HSBC HOLDINGS PLC
0.05%0.04%#289$115.7M535,866$85.5M468,552+67,314+14.37%Add
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC
0.16%0.15%#126$110.2M510,194$95.1M518,694-8,500-1.64%Reduce
LSV ASSET MANAGEMENT
0.17%0.13%#113$95.9M444,049$61.2M333,739+110,310+33.05%Add
BARCLAYS PLC
0.02%0.03%#542$92.3M427,157$134.1M731,474-304,317-41.60%Reduce
JANE STREET GROUP, LLC
0.01%0.01%#707$90.9M420,635$53.3M290,869+129,766+44.61%Add
Swiss National Bank
0.05%0.05%#297$89.4M413,900$78.9M430,600-16,700-3.88%Reduce
National Pension Service
0.06%0.06%#246$87.7M406,064$73.6M401,667+4,397+1.09%Add

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow