-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, WiZHk/HuE9pggvpsivC6M89ZBVGFZDtvGw5g7PiShjXJv9TlX3uDWUfT1BUlQ1vy qRffQNKClD3hq82IcuPR4Q== 0001428948-10-000004.txt : 20100513 0001428948-10-000004.hdr.sgml : 20100513 20100513111929 ACCESSION NUMBER: 0001428948-10-000004 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20100331 FILED AS OF DATE: 20100513 DATE AS OF CHANGE: 20100513 EFFECTIVENESS DATE: 20100513 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Impax Asset Management LTD CENTRAL INDEX KEY: 0001428948 IRS NUMBER: 000000000 STATE OF INCORPORATION: X0 FISCAL YEAR END: 0930 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-13410 FILM NUMBER: 10827053 BUSINESS ADDRESS: STREET 1: MEZZANINE FLOOR PEGASUS HOUSE STREET 2: 37 - 43 SACKVILLE STREET CITY: LONDON STATE: X0 ZIP: W1S 3EH BUSINESS PHONE: 0044 20 7434 1122 MAIL ADDRESS: STREET 1: MEZZANINE FLOOR PEGASUS HOUSE STREET 2: 37 - 43 SACKVILLE STREET CITY: LONDON STATE: X0 ZIP: W1S 3EH 13F-HR 1 form13f.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F-HR Form 13F COVER PAGE Report for the Calendar Year of Quarter Ended: March 31, 2010 Check here if Amendment [ ]; Amendment Number: This Amendment (Check only one.): [ ] is a restatement. [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Impax Asset Management Limited Address: Mezzanine Floor Pegasus House 37-43 Sackville Street London W1S 3EH UNITED KINGDOM Form 13F File Number: The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Michael Knight Title: Chief Compliance Officer Phone: 44(0)207 7432 2626 Signature, Place, and Date of Signing: M B Knight London United Kingdom 13 May 2010 - - ----------------------- ------------ ----------------- [Signature] [City, State] [Date] Report Type (Check only one.): [X] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.) [ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).) [ ] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).) Form 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 ----------- Form 13F Information Table Entry Total: 36 ----------- Form 13F Information Table Value Total: $150382 ----------- (thousands) List of Other Included Managers: ISSUER CLASS CUSIP VALUE SH/PRN PUT/ INV OTHER VOTING AUTH '000s CALL DISCRETION MGRS SOLE Active Power Inc Common 00504W100 934 1152686 S S American Water Works Common 030420103 6115 281030 S S Applied Materials Inc Common 038222105 2531 187900 S S Aqua America Inc Common 03826W103 6302 358660 S S Badger Meter Common 056525108 3960 102827 S S Baldor Electric Common 057741100 2596 69084 S S Borgwarner Inc Common 099724106 895 23433 S S California Water Services Common 130788102 8805 234112 S S Clean Harbors Inc Common 184496107 7895 142095 S S Covanta Holdings Corp. Common 22282E102 1845 110744 S S Danaher Corp Common 235851102 1670 20889 S S Dionex Corp Common 254546104 4431 59250 S S Emerson Electric Co. Common 291011104 3053 60638 S S Idex Corp Common 45167R104 379 11450 S S Insituform Technologies Common 457667103 2898 108920 S S Itron Inc Common 465741106 8665 119407 S S Johnson Controls inc Common 478366107 2682 81052 s S LKQ Corp Common 501889208 5462 269080 S S Mastec Inc Common 576323109 2792 221383 S S Mueller water Products Inc-A Common 624758108 3984 833540 S S Nalco Holdings Common 62985Q101 8262 339124 S S Ormat Technologies Inc Common 686688102 7224 256712 S S Pall corp Common 696429307 3091 76325 S S Pentair Inc. Common 709631105 6781 190347 s S Perkinelmer Inc. Common 714046109 2603 108900 S S Polypore International Common 73179V103 3803 217790 S S Power Integrations Inc Common 739276103 3088 74940 S S Regal Beloit Common 758750103 5039 84590 S S Republic services Inc Common 760759100 2132 73011 S S Roper Industries Inc Common 776696106 5911 102200 S S Stericycle Inc Common 858912108 6065 111280 S S Sunpower Corp class B Common 867652307 2394 142988 S S Thermo Fisher Scientific Inc Common 883556102 3779 73471 S S URS Corp Common 903236107 2156 43468 S S Watts Water Technologies-A Common 942749102 6177 198875 S S 3M Co Common 88579Y101 3983 47655 S S
-----END PRIVACY-ENHANCED MESSAGE-----