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Filing Detail
Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend]
SEC Accession No. 0000080255-10-000179
Filing Date
2010-02-12
Accepted
2010-02-11 18:27:21
Documents
1

Document Format Files

Seq Description Document Type Size
1 MTSN AS OF 12/31/2009 mtsn13gadec09.txt SC 13G/A 8254
  Complete submission text file 0000080255-10-000179.txt   10203
Mailing Address P.O. BOX 89000 BALTIMORE MD 21289
Business Address 100 EAST PRATT ST BALTIMORE MD 21202 (410)345-
PRICE T ROWE ASSOCIATES INC /MD/ (Filed by) CIK: 0000080255 (see all company filings)

IRS No.: 520556948 | State of Incorp.: MD | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6200 Security & Commodity Brokers, Dealers, Exchanges & Services

Mailing Address 47131 BAYSIDE PARKWAY FREMONT CA 94538
Business Address 47131 BAYSIDE PARKWAY FREMONT CA 94538 510 657 5900
MATTSON TECHNOLOGY INC (Subject) CIK: 0000928421 (see all company filings)

IRS No.: 770208119 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-46189 | Film No.: 10593391
SIC: 3559 Special Industry Machinery, NEC