13F-HR 1 atlinv13fmar12.txt FIRST QUARTER 13F FORM 13F UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2012 Check here if Amendment [ ]: This Amendment (Check only one.): [ ] is a restatement [ ] adds new holdings entries. Institutional Investment Manager Filing this Report: Name: Atlantic Investment Management, Inc. -------------------------------------------- Address: 666 Fifth Avenue, 34th Floor New York, New York 10103 --------------------------------------- Form 13F File Number: 028-06437 -------------------------------- 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: Alexander J. Roepers Title: President Phone: 212-484-5050 Signature, Place, and Date of Signing /s/ Alexander J. Roepers New York, NY May 15, 2012 ------------------------- -------------- -------------- [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: None ---- Form 13F Information Table Entry Total: 13 -- Form 13F Information Table Value Total: $ 1,208,990 (thousands) ----------------------- List of Other Included Managers: None ---- FORM 13F INFORMATION TABLE Atlantic Investment Management, Inc. FORM 13F March 31, 2012

TITLE OF VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTH NAME OF ISSUER CLASS CUSIP (x1000) PRN AMT PRN CALL DSCRETN MNGRS SOLE SHRD NONE AECOM TECHNOLOGY CORP DELAWA COM 00766T100 $13,422 600,000 SH Sole 600,000 ASHLAND INC NEW COM 044209104 $155,703 2,550,000 SH Sole 2,550,000 CRANE CO COM 224399105 $20,069 413,786 SH Sole 413,786 CROWN HOLDINGS INC COM 228368106 $27,549 747,997 SH Sole 747,997 ENERGIZER HLDGS INC COM 29266R108 $181,741 2,450,000 SH Sole 2,450,000 FLOWSERVE CORP COM 34354P105 $124,173 1,075,000 SH Sole 1,075,000 GEO GROUP INC COM 36159R103 $13,307 700,000 SH Sole 700,000 HARMAN INTL INDS INC COM 413086109 $25,746 550,000 SH Sole 550,000 JOY GLOBAL INC COM 481165108 $198,450 2,700,000 SH Sole 2,700,000 KENNAMETAL INC COM 489170100 $151,402 3,400,000 SH Sole 3,400,000 OWENS ILL INC COM NEW 690768403 $200,724 8,600,000 SH Sole 8,600,000 ROCKWOOD HLDNGS INC COM 774415103 $73,532 1,410,000 SH Sole 1,410,000 SEALED AIR CORP NEW COM 81211K100 $23,172 1,200,000 SH Sole 1,200,000

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