Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

BIOGEN INC.

BIIB · Nasdaq · CIK 0000875045 · Healthcare · Drug Manufacturers—General

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

16 Form 4 transaction lines observed in the same window
2 sales · 14 option, withholding, award, gift or other lines

Last qualifying purchase2026-02-12 · Murphy Nicole · $585

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Minor LloydDirector
○▼▼
Pangalos Menelas NDirector
○○
Keeney AdamHead of Corporate Development
○○
Godbout SeanChief Accounting Officer
○○
HAWKINS WILLIAM ADirector
○
SHERWIN STEPHEN ADirector
○
● Purchase▼ Sale○ Other

Showing the six most active owners; 5 additional owner(s) remain in Form 4 evidence.

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-02-12 · Murphy Nicole.

Recent Form 4 activity

1Purchases
4Sales
74Other Form 4 lines
27SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING2 sale line(s) · context only
OTHER14 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context provides additional background on recent price performance and risk. It does not affect the Insider Signal.

Price performance

1M
+6.2%
3M
+16.4%
6M
+31.2%
12M
+61.9%

Volatility & liquidity

Volatility
32.8%
Beta
—
Avg daily value
USD 232.3M

Valuation

Market cap
USD 34.4B
P/E
26.6×

Fundamentals

Profit margin
13.1%
ROE
7.1%
Industry
Drug Manufacturers—General

Market data

Price data up to: 2026-10-18 · Price source: OpenBB/yfinance; volume from price cache (yfinance) · From SEC filings: Market cap, P/E, Profit margin, ROE · Fiscal year ended: 2025-12-31 · Market cap is the shares outstanding stated on the filing cover multiplied by the latest close. Share count date: 2026-07-27 · Status: PASS

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
5,965,892
Previous report
5,817,797
Avg daily volume
1,225,961
Days to cover
4.9

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-02-12Murphy NicolePurchase (P)Common Stock3USD 195.04USD 585SEC filing ↗
2025-05-02DORSA CAROLINEPurchase (P)Common Stock1,235USD 122.72USD 151,559SEC filing ↗
2024-02-15Rowinsky Eric KPurchase (P)Common Stock455USD 222.54USD 101,256SEC filing ↗
2021-02-09Mantas Jesus BPurchase (P)Common Stock898USD 267.00USD 239,766SEC filing ↗
2020-11-30Vounatsos MichelPurchase (P)Common Stock3,100USD 241.31USD 748,061SEC filing ↗

Form 4 evidence

79 transaction lines in the latest 365-day window; 552 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Godbout SeanOption exercise / conversion (M)Common Stock27USD 0.00USD 0SEC filing ↗
2026-10-02Godbout SeanTax withholding (F)Common Stock8USD 219.88USD 1,759SEC filing ↗
2026-08-04Minor LloydSale (S)Common Stock593USD 200.96USD 119,169SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-02Godbout SeanOption exercise / conversion (M)Common Stock27USD 0.00USD 0SEC filing ↗
2026-10-02Godbout SeanTax withholding (F)Common Stock8USD 219.88USD 1,759SEC filing ↗
2026-08-04Minor LloydSale (S)Common Stock593USD 200.96USD 119,169SEC filing ↗
2026-08-03Minor LloydSale (S)Common Stock593USD 203.34USD 120,581SEC filing ↗
2026-06-09SHERWIN STEPHEN AAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09Rowinsky Eric KAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09Patolawala Monish DAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09Pangalos Menelas NOption exercise / conversion (M)Common Stock2,370USD 0.00USD 0SEC filing ↗
2026-06-09Pangalos Menelas NAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09Minor LloydAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09Mantas Jesus BAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09LANGER SUSANAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09HAWKINS WILLIAM AAward / grant (A)Common Stock1,505USD 0.00USD 0SEC filing ↗
2026-06-09Freire Maria CAward / grant (A)Common Stock2,005USD 0.00USD 0SEC filing ↗
2026-05-01Keeney AdamOption exercise / conversion (M)Common Stock939USD 0.00USD 0SEC filing ↗
2026-05-01Keeney AdamTax withholding (F)Common Stock455USD 187.06USD 85,112SEC filing ↗
2026-04-01Godbout SeanOption exercise / conversion (M)Common Stock181USD 0.00USD 0SEC filing ↗
2026-04-01Godbout SeanTax withholding (F)Common Stock54USD 183.78USD 9,924SEC filing ↗
2026-02-12Murphy NicolePurchase (P)Common Stock3USD 195.04USD 585SEC filing ↗
2026-02-09Singhal PriyaSale (S)Common Stock2,660USD 199.83USD 531,548SEC filing ↗
2026-02-06Viehbacher ChristopherOption exercise / conversion (M)Common Stock24,461USD 0.00USD 0SEC filing ↗
2026-02-06Viehbacher ChristopherTax withholding (F)Common Stock10,980USD 201.18USD 2,208,956SEC filing ↗
2026-02-06Singhal PriyaOption exercise / conversion (M)Common Stock6,900USD 0.00USD 0SEC filing ↗
2026-02-06Singhal PriyaTax withholding (F)Common Stock2,468USD 201.18USD 496,512SEC filing ↗
2026-02-06Murphy NicoleOption exercise / conversion (M)Common Stock8,725USD 0.00USD 0SEC filing ↗
2026-02-06Murphy NicoleTax withholding (F)Common Stock3,339USD 201.18USD 671,740SEC filing ↗
2026-02-06Kramer RobinOption exercise / conversion (M)Common Stock5,003USD 0.00USD 0SEC filing ↗
2026-02-06Kramer RobinTax withholding (F)Common Stock1,543USD 201.18USD 310,421SEC filing ↗
2026-02-06Keeney AdamOption exercise / conversion (M)Common Stock5,080USD 0.00USD 0SEC filing ↗
2026-02-06Keeney AdamTax withholding (F)Common Stock1,583USD 201.18USD 318,468SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerBIIB
CIK0000875045
SectorHealthcare
IndustryDrug Manufacturers—General Yahoo Finance
SEC SIC2836 Biological Products, (No Diagnostic Substances)
ExchangeNasdaq

Data coverage

Local Form 4 history552 transaction lines from 2020-01-02 to 2026-10-02
5 P purchase lines · 29 S sale lines · 518 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.