BIIB

Nasdaq

BIOGEN INC.

Latest disclosureOctober 5, 2026

Insider score Why 0?: 0/ 100
Qualifying buys · 30d: $0

0 purchases · 2 sales

Price by TradingView

Insider transactions 24

Limited filing history

Filters

Last 30 daysNo qualifying insider buying. No qualifying insider sales.

Sale disclosed

Lloyd Minor

Director

Common Stock

Reported value: $120.58K
Reported price: $203.34 / share

Sale disclosed

Lloyd Minor

Director

Common Stock

Reported value: $119.17K
Reported price: $200.96 / share

Reporting insider	Security / transaction	Amount / price	Value	Traded / disclosed	Source
Director	Common StockSale10b5-1	593$203.34 / share	$120.58K	Aug 3Filed Aug 5 · 2d later	SEC filing
Director	Common StockSale10b5-1	593$200.96 / share	$119.17K	Aug 4Filed Aug 5 · 1d later	SEC filing

Congress transactions 8

All Congress filings

Sale disclosed

Biogen Inc. - Common Stock (BIIB) · Stock

The filing reports a sale for the member.

Kevin HernReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: August 18, 2026

Purchase disclosed

Biogen Inc. - Common Stock · Stock

The filing reports a purchase for the member.

AAAlan ArmstrongReporting Senate member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: March 27, 2026

Sale disclosed

Biogen Inc. - Common Stock (BIIB) · Stock

The filing reports a sale for the member.

Maria Elvira SalazarReporting House member

Reported amount: $15,001 – $50,000Reported range; exact amount not disclosed.
Trade date: June 2, 2026

Purchase disclosed

Biogen Inc. - Common Stock (BIIB) · Stock

The filing reports a purchase for the member.

Gilbert CisnerosReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: June 5, 2026

Purchase disclosed

Biogen Inc. - Common Stock (BIIB) · Stock

The filing reports a purchase for the member.

Maria Elvira SalazarReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: May 12, 2026

Purchase disclosed

Biogen Inc. - Common Stock (BIIB) · Stock

The filing reports a purchase for the member.

Maria Elvira SalazarReporting House member

Reported amount: $50,001 – $100,000Reported range; exact amount not disclosed.
Trade date: May 11, 2026

Purchase disclosed

Biogen Inc. - Common Stock (BIIB) · Stock

The filing reports a purchase for the member.

Maria Elvira SalazarReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: May 11, 2026

Purchase disclosed

Biogen Inc. - Common Stock (BIIB) · Stock

The filing reports a purchase for the member.

Gilbert CisnerosReporting House member

Reported amount: $1,001 – $15,000Reported range; exact amount not disclosed.
Trade date: January 30, 2026

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0000875045
Latest public acceptance: Oct 5, 2026, 09:00 PM UTC
Score calculated: Oct 8, 2026, 12:04 AM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.

Insider activity can have many explanations. Signal Strength is not a probability of profit or a recommendation to trade.

Reporting insider

Security / transaction

Amount / price

Value

Traded / disclosed

Source

Director

Common StockSale10b5-1

593$203.34 / share

$120.58K

Aug 3Filed Aug 5 · 2d later

SEC filing

Director

Common StockSale10b5-1

593$200.96 / share

$119.17K

Aug 4Filed Aug 5 · 1d later

SEC filing

Why this buying score?

No qualifying common-equity purchases

No eligible common-equity purchase is public by this cutoff within 180 transaction-date days. Other instruments, exercises and routine activity do not contribute purchase points.

+0 pts

This score describes qualifying insider purchases at issuer level. Read the methodology

Sources and coverage

Limited filing history · Market-wide discovery does not establish complete company history. View coverage

Source: SEC EDGAR · Form 4
Issuer CIK: 0000875045
Latest public acceptance: Oct 5, 2026, 09:00 PM UTC
Score calculated: Oct 8, 2026, 12:04 AM UTC
Parser: form4-parser-1.5
Classifier: form4-classifier-1.1
Scoring methodology: insider-experimental-1.1
Availability: Public filing time, not trade date

Open a transaction's SEC filing for the primary evidence. A code P may describe an open-market or private purchase; classification is not proof of intent.