US09062XAN30 · Corp · USDInvestment Grade · BBB+

Biogen Inc 5.05% 2031/01

Biogen IncUnited StatesGLOBALSenior Unsecured
MID PRICE
103.21
par = 100
YIELD TO MAT.
4.65%
semi-annual
COUPON
5.050%
semi-annual · fixed
MATURITY
2031-01-15
bullet · 4.69y
OUTSTANDING
not disclosed
AS OF
2026-05-07

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About this bond

AI BRIEF · GROUNDED IN STRUCTURED DATA
About the issuer

Biogen Inc. is an American multinational biotechnology company based in Cambridge, Massachusetts, United States specializing in the treatment of neurological diseases. The company's primary products are dimethyl fumarate (Tecfidera), diroximel fumarate (Vumerity), interferon beta-1a (AVONEX), peginterferon beta-1a (Plegridy), and natalizumab (Tysabri), all for the treatment of multiple sclerosis ; nusinersen (Spinraza) for the treatment of spinal muscular atrophy ; omaveloxolone (Skyclarys) for the treatment of Friedreich's ataxia ; tofersen (Qalsody) for the treatment of ALS; and dimethyl fumarate (Fumaderm) for the treatment of severe plaque psoriasis. The company also produces 5 biosimilars and has collaborations with Genentech for several drugs.

Source: Wikipedia →

Risk analytics

SEMI-ANNUAL · BULLET · PAR 100
Modified duration
4.08 y
1bp ↑ ≈ -0.041% P&L
Convexity
19.96
higher = more curvature
Years to maturity
4.69 y
YTM source
Ingested
Market signals · funds disclosing this bond
SignalCategoryExposureLast moveWeightAs of
iShares iBonds Dec 2031 Term Corporate
iShares
iBonds 2031 Corporate$2.0M▼ $4K0.09%2026-05-07
iShares 1-5 Year Investment Grade Corporate Bond
iShares
US IG Corporate 1-5Y$1.8M▼ $3K0.01%2026-05-07
iShares Core U.S. Aggregate Bond
iShares
US Aggregate$1.3M▼ $3K0.00%2026-05-07
SPDR Portfolio Intermediate Term Corporate Bond
SPDR
US IG Corporate Intermediate$1.3M▲ $1K0.01%2026-05-05
SPDR DoubleLine Short Duration Total Return Tactical
SPDR
US Active Short Duration$881K▲ $7410.20%2026-05-05
iShares Broad USD Investment Grade Corporate Bond
iShares
US Broad IG Corporate$774K▼ $1K0.00%2026-05-07
iShares Core Universal USD Bond
iShares
US Aggregate$279K▼ $5240.00%2026-05-07
SPDR Portfolio Aggregate Bond
SPDR
US Aggregate$168K▲ $1830.00%2026-05-05
iShares Intermediate Government/Credit Bond
iShares
US Govt/Credit$72K▼ $1360.00%2026-05-07
iShares ESG Aware USD Corporate Bond
iShares
US ESG IG Corporate$62K▼ $1160.00%2026-05-07
iShares ESG Aware U.S. Aggregate Bond
iShares
US ESG Aggregate$31K▼ $580.00%2026-05-07
iShares Interest Rate Hedged U.S. Aggregate Bond
iShares
US Aggregate$480.00%2026-05-07
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Price history

Sherpa Signal

AS OF 2026-05-07

Institutional footprint · signal-level holdings

41/ 100Active coverage
Interpretation. Light institutional footprint, with net distribution
HOLDERS
12
unchanged in 7d
AGGREGATE EXPOSURE
$8.7M
USD across all
TOP CONCENTRATION
23.1%
largest holder
FLOW
▼ $1.9M
unchanged in 7d

Sherpa Signal is derived from a panel of tracked institutional portfolios. Names of individual holders are not disclosed.

100K PAR NOTIONAL · MARKET VALUE
103,211 USD
PRICE
103.21

RFQ routing · coming soon

Security details

VIA OPENFIGI
Canonical
BIIB 5.05 01/15/31
FIGI
BBG01TVS68R6
CUSIP
09062XAN3
ISIN
US09062XAN30
Type
Corp
Issued
2025-05-12
Face value
100 USD
Ticker
BIIB 5.05 01/15/31
Sec. type
GLOBAL
Seniority
Senior Unsecured

Issuer curve

BIIB · 7 PTS

Yield (%) plotted against years-to-maturity. This bond highlighted in amber.