// company-profile

Biogen Inc. Insider Trading

BIIB

Every SEC Form 4 insider trading filing for Biogen Inc. (BIIB) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.

ExchangeNasdaqSectorBiological Products, (No Diagnostic Substances)Inc.DEFilings141Insiders21
// api This Biogen Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
curl "https://api.form4api.com/v1/transactions?ticker=BIIB" -H "X-Api-Key: YOUR_API_KEY"

// activity-summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $240K across 2 transactions.

// 90-day insight

Over the last 90 days, Biogen Inc. insiders bought $0 (11 transactions) and sold $240K (2 transactions).

  • Most active insider: Minor Lloyd with 3 transactions totaling $240K.
  • Largest single sale: $121K by Minor Lloyd on Aug 3, 2026.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Biogen Inc. as of 2026-06-30

↓ decreasing
Total reported AUM
$7.97B
QoQ change
-64.3%
Reporting period
2026-06-30
#1
STATE STREET CORP
CIK 93751
$1.59B
7.3M shares
#2
BlackRock, Inc.
CIK 2012383
$1.33B
6.2M shares
#3
BlackRock, Inc.
CIK 2012383
$661.3M
3.1M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Aug 4, 2026Minor LloydBIIB
Sale
593$200.96$119K
Aug 3, 2026Minor LloydBIIB
Sale
593$203.34$121K
Jun 9, 2026Pangalos Menelas NBIIB
Award
1,505$0.00$0K
Jun 9, 2026Minor LloydBIIB
Award
1,505$0.00$0K
Jun 9, 2026LANGER SUSANBIIB
Award
1,505$0.00$0K

45 more transactions hidden

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