SEC reporting owner

MPM BIOVENTURES III L.P. SEC insider disclosures

Explore MPM BIOVENTURES III L.P.'s reporting-owner identity, issuer relationships, purchases, sales and SEC filing receipts.

As of 2026-10-07T00:29:11.873Z

Reporting owner CIK
0001173408
Issuers
12
Coverage
verified

Issuer relationships

A reporting-owner CIK identifies the filer across issuer relationships and name aliases. A filer may be an individual or an organization; the filing role is the relevant evidence.

PONIARD PHARMACEUTICALS, INC.0000755806NERX, PARDNoNo
COTHERIX INC0001138812CTRXNoNo
Pharmasset Inc0001301081VRUSNoNo
Somaxon Pharmaceuticals, Inc.0001339455SOMXNoNo
HELICOS BIOSCIENCES CORP0001274563HLCSNoNo
PHARMATHENE, INC0001326190HAQ, PIPNoNo
ARYx Therapeutics, Inc.0001410064ARYXNoNo
EnteroMedics Inc0001371217ETRMNoNo
PEPLIN INC0001408808PLINNoNo
Zalicus Inc.0001135906CRXX, ZLCSNoNo
Radius Health, Inc.0001428522RDUSNoNo
KALOBIOS PHARMACEUTICALS INC0001293310KBIONoNo

Recent SEC transactions

Code P identifies a purchase, S a sale and A an award. Awards and open-market purchases describe different events. Use the public availability date when deciding when a researcher could have known about the transaction.

No records are available for this view.

Up to 50 transactions from the recent two-year owner window.

Source evidence and strategy eligibility

The transactions below come from filings; a historical tracker separately simulates following eligible events. Joint filers can report the same transaction, and an owner can have filings at multiple companies. Public availability, amendment lineage and verified coverage determine which events a historical tracker may use.

The current directory marks this owner's filing coverage verified.