BIOGEN INC. (BIIB)

Healthcare · Biological Products, (No Diagnostic Substances)

BIOGEN INC. (BIIB) stock research on InvestAtlant: institutional ownership from 13F filings, insider Form 4 activity, and SEC context.

Top institutional holders (2026-Q3)

InstitutionSharesValue% Outstanding
Pictet Asset Management Holding SA 832,444 88.23M 0.56%
Robeco Institutional Asset Management B.V. 656,465 48.28M 0.44%
Artemis Investment Management LLP 581,774 31.41M 0.39%
Candriam S.C.A. 412,472 $93.51M 0.28%
B. Metzler seel. Sohn & Co. AG 403,636 $91.17M 0.27%
Sumitomo Mitsui Trust Group, Inc. 336,692 $76.05M 0.23%
Swedbank AB 322,494 $72.84M 0.22%
KBC Group NV 289,080 $65.3K 0.20%

Recent insider transactions

DateInsiderTitleTypeValue
2026-08-04 Minor Lloyd Director Sale 19.2K
2026-08-03 Minor Lloyd Director Sale 20.6K
2026-02-12 Murphy Nicole Head of Pharm Ops and Tech Purchase $585
2026-02-09 Singhal Priya Head of Development Sale $531.5K

US equities research

Follow the money behind the market.

Public filings. Connected research. One workspace.

Click a source to open it in the workspace

InvestAtlant connects public filings, institutional activity, insider trades, congressional disclosures, and sector data to surface emerging market signals.

Signals

Where the market starts to move.

Detect emerging patterns, convergence, and divergence before they become obvious.

How it works

Three steps. From data to insight.

  1. Find

    Research stocks, investors, sectors, and politicians.

  2. Track

    Follow capital flows across sectors and filings.

  3. Detect

    Spot emerging alignment and divergence.

Fundamentals · Market context · Institutions · Insiders · Sectors · SEC filings

Open the research workspace.

Holdings from SEC 13F. Insider trades from Form 4. Congress from House and Senate PTRs. Real-time market prices via TradingView.