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Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001104659-11-030587
Filing Date
2011-05-20
Accepted
2011-05-20 16:12:38
Documents
1
Period of Report
2011-05-18

Document Format Files

Seq Description Document Type Size
1 4 a4.html 4  
1 4 a4.xml 4 3962
  Complete submission text file 0001104659-11-030587.txt   5458
Mailing Address ARSENAL ON THE CHARLES 321 ARSENAL STREET WATERTOWN MA 02472
Business Address ARSENAL ON THE CHARLES 321 ARSENAL STREET WATERTOWN MA 02472 6177785700
A123 SYSTEMS, INC. (Issuer) CIK: 0001167178 (see all company filings)

IRS No.: 043583876 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 3690 Miscellaneous Electrical Machinery, Equipment & Supplies

Mailing Address A123 SYSTEMS, INC. 200 WEST STREET WALTHAM MA 02451
Business Address
Pyenson Eric J. (Reporting) CIK: 0001520778 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-34463 | Film No.: 11861761