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AFTER HRS · 18:15 ET
Market ClerkRecap
Wed Oct 21 · after hours2 signals today106 insider buys this week · $305.5MCIRO short report next: Oct 31The week ahead

BIIB

BIOGEN INC.
NASDAQ · HEALTH CARE · BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
240.98
−2.12 −0.87%
USD · close Oct 21

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MKT CAP $35.6BP/E 25.9DIV YIELD —FCF YIELD 6.81%REV TTM $9.9B +1.2%NET INCOME $1.4B −7.3%NET DEBT $3.4B52W 146.22 – 243.10SEC XBRL · TTM TO Invalid Date

One year, everything drawn on

252 SESSIONS · DAILY CLOSES
251213176138Sep 24 · Maria Salazar sellAug 18 · Kevin Hern sellJun 5 · Gilbert Cisneros buyJun 2 · Maria Salazar sellMay 12 · Maria Salazar buyMay 11 · Maria Salazar buyMay 11 · Maria Salazar buyMar 27 · Alan Armstrong buyJan 30 · Gilbert Cisneros buyApr 29 · 10-Q filed (Q1 2026)Feb 6 · 10-K filed (FY 2025)Feb 6 · 10-K filed (Q4 2025)Oct 30 · 10-Q filed (Q3 2025)Apr 29 · 10-Q filed (Q1 2025)Feb 6 · 10-K filed (FY 2024)Feb 6 · 10-K filed (Q4 2024)Oct 30 · 10-Q filed (Q3 2024)Feb 6 · 10-K filed (FY 2023)Feb 6 · 10-K filed (Q4 2023)OCT 2025JAN 2026APRJUL
Insider buyInsider sellCongress buy, above the lineCongress sell, below10-K / 10-Q filedHOVER A MARKER FOR THE FILING
THE WORK ORDER · 2026-10-21
Shorts (latest report): 5.7M short · +536K last period
Every line of the math
27FLAG

Congress is trading it

ALL 9
TradedMemberTypeAmount
Sep 24Maria Salazar R·FLSell$1K–$15K
Aug 18Kevin Hern R·OKSell$1K–$15K
Jun 5Gilbert Cisneros D·CABuy$1K–$15K
Jun 2Maria Salazar R·FLSell$15K+
May 12Maria Salazar R·FLBuy$1K–$15K
May 11Maria Salazar R·FLBuy$50K+

Insider activity

No open-market insider filings on BIIB.
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