Immunogen INC

830, Winter Street, Waltham, MA 02451

LIKELY ACTIVELAST SEEN IN FEDERAL DATA JUN 2026 · 2 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

Pharmaceutical Preparation Manufacturing325412

Products

Sold by IMMUNOGEN INC · 1

Mirvetuximab Soravtansine

Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.

Where these came from

1 from FDA drug listing · Federal registry

FDA drug listing, labeler ImmunoGen, Inc., NDC 72903-853. A labeler markets the product; it may not manufacture it.

Where it is

42.40311, -71.27360 · CENSUS TIGER

COUNTY

Middlesex County

METRO AREA

Boston-Cambridge-Newton, MA-NH

ON GOOGLE MAPS

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STREET VIEW

Open street-level view — SEP 2017

Other plants nearby

Facility	City	Industry	Status	Distance
Mural Oncology INC	Waltham	Pharmaceutical Preparation Manufacturing 325412	LIKELY ACTIVE	0.7 KM
Alkermes, INC.	Waltham	Pharmaceutical Preparation Manufacturing 325412	LIKELY ACTIVE	0.7 KM
Miltenyi Biotec Waltham	Waltham	Pharmaceutical Preparation Manufacturing 325412	LIKELY ACTIVE	0.8 KM
Genzyme Drug Discovery & Development	Waltham	Pharmaceutical Preparation Manufacturing 325412	UNVERIFIED	1.5 KM
Moderna, TX. - Waltham MTC	Waltham	Biological Product (except Diagnostic) Manufacturing 325414	LIKELY ACTIVE	1.6 KM

Every listed plant in Middlesex County

Also at this address

No other federal record shares this street address.

Where this record comes from

2 sources hold this plant, and 10 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in MA-EPICS, RCRAINFO · EPA site type STATIONARY.

SAM.gov entity registrationOPERATING
Record GPE8PCA3MKZ3 · first seen JUN 2026 · last seen JUN 2026
EPA Facility Registry ServiceEXISTENCE
Record 110037037907 · first seen SEP 2011 · last seen SEP 2011

IN MIDDLESEX COUNTY201 other plants share this one’s industry (Pharmaceutical and Medicine Manufacturing, NAICS 3254); 43 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name: EPA: IMMUNOGEN INC · JUL 2026 · ON THIS PAGE; SAM.gov: IMMUNOGEN INC · JUN 2026 · ON THIS PAGE
Street addressSOURCES DISAGREE: EPA: 830 WINTER ST · JUL 2026; SAM.gov: 830, WINTER STREET · JUN 2026 · ON THIS PAGE
City: EPA: WALTHAM · JUL 2026 · ON THIS PAGE; SAM.gov: WALTHAM · JUN 2026 · ON THIS PAGE
State: EPA: MA · JUL 2026 · ON THIS PAGE; SAM.gov: MA · JUN 2026 · ON THIS PAGE
County (FIPS code): EPA: 25017 · SEP 2026
Coordinates: EPA: 42.40311,-71.2736 · JUL 2026
Website: SAM.gov: http://www.immunogen.com · JUN 2026
CAGE code: SAM.gov: 61CM8 · JUN 2026
SAM registration expires: SAM.gov: 2027-06-12 · JUN 2026
State business registration: TX Comptroller: IMMUNOGEN, registered with the Texas Comptroller of Public Accounts; Corporation; active

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