SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 ---------------- SCHEDULE 13D (Rule 13d-101) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 11) Atlas Air Worldwide Holdings, Inc. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock -------------------------------------------------------------------------------- (Title of Class of Securities) 049164205 -------------------------------------------------------------------------------- (CUSIP Number) William R. Lucas, Jr. One Riverchase Parkway South Birmingham, Alabama 35244 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) September 6, 2007 -------------------------------------------------------------------------------- (Date of Event which Requires Filing of This Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box [ ]. Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7 for other parties to whom copies are to be sent. ---------- (1) The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HMC Atlas Air, L.L.C. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* WC 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 7,294,776 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 7,294,776 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,294,776 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 34.2% 14. TYPE OF REPORTING PERSON* CO CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Harbinger Capital Partners Offshore Manager, L.L.C. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 7,294,776 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 7,294,776 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,294,776 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 34.2% 14. TYPE OF REPORTING PERSON* CO CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HMC Investors, L.L.C. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 7,294,776 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 7,294,776 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 7,294,776 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 34.2% 14. TYPE OF REPORTING PERSON* CO CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Harbinger Capital Partners Special Situations Fund, L.P. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* WC 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 1,094,914 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 1,094,914 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,094,914 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.1% 14. TYPE OF REPORTING PERSON* CO CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Harbinger Capital Partners Special Situations GP, LLC 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 1,094,914 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 1,094,914 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,094,914 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.1% 14. TYPE OF REPORTING PERSON* CO CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) HMC - New York, Inc. 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION New York NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 1,094,914 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 1,094,914 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,094,914 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 5.1% 14. TYPE OF REPORTING PERSON* CO CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Harbert Management Corporation 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION Alabama NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 8,389,690 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 8,389,690 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,389,690 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 39.3% 14. TYPE OF REPORTING PERSON* CO CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Philip Falcone 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 8,389,690 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 8,389,690 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,389,690 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 39.3% 14. TYPE OF REPORTING PERSON* IN CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Raymond J. Harbert 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 8,389,690 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 8,389,690 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,389,690 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 39.3% 14. TYPE OF REPORTING PERSON* IN CUSIP No. 049164205 --------------------- 1. NAME OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Michael D. Luce 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [X] (b) [ ] 3. SEC USE ONLY 4. SOURCE OF FUNDS* AF 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [_] 6. CITIZENSHIP OR PLACE OF ORGANIZATION U.S.A. NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON 7. SOLE VOTING POWER 0 8. SHARED VOTING POWER 8,389,690 9. SOLE DISPOSITIVE POWER 0 10. SHARED DISPOSITIVE POWER 8,389,690 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 8,389,690 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [_] 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 39.3% 14. TYPE OF REPORTING PERSON* IN CUSIP No. 049164205 --------------------- -------------------------------------------------------------------------------- Item 1. Security and Issuer. NO MATERIAL CHANGE FROM THE SCHEDULE 13D, AMENDMENT NO. 10, FILED ON MARCH 19, 2007. -------------------------------------------------------------------------------- Item 2. Identity and Background. NO MATERIAL CHANGE FROM THE SCHEDULE 13D, AMENDMENT NO. 10, FILED ON MARCH 19, 2007. -------------------------------------------------------------------------------- Item 3. Source and Amount of Funds or Other Consideration. As of the date hereof HMC Atlas Air may be deemed to beneficially own 7,294,776 Shares. As of the date hereof Harbinger Management may be deemed to beneficially own 7,294,776 Shares. As of the date hereof HMC Investors may be deemed to beneficially own 7,294,776 Shares. As of the date hereof the Special Fund may be deemed to beneficially own 1,094,914 Shares. As of the date hereof HCPSS may be deemed to beneficially own 1,094,914 Shares. As of the date hereof HMCNY may be deemed to beneficially own 1,094,914 Shares. As of the date hereof HMC may be deemed to beneficially own 8,389,690 Shares. As of the date hereof Philip Falcone may be deemed to beneficially own 8,389,690 Shares. As of the date hereof Raymond J. Harbert may be deemed to beneficially own 8,389,690 Shares. As of the date hereof Michael D. Luce may be deemed to beneficially own 8,389,690 Shares. Some of the Shares were received in distributions from the Issuer in connection with its corporate reorganization while the remaining Shares were purchased in the open-market. No borrowed funds were used to purchase the Shares, other than any borrowed funds used for working capital purposes in the ordinary course of business. -------------------------------------------------------------------------------- Item 4. Purpose of Transaction. NO MATERIAL CHANGE FROM THE SCHEDULE 13D, AMENDMENT NO. 10, FILED ON MARCH 19, 2007. -------------------------------------------------------------------------------- Item 5. Interest in Securities of the Issuer. (2) (a, b) As of the date hereof, HMC Atlas Air may be deemed to be the beneficial owner of 7,294,776 Shares, constituting 34.2% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. HMC Atlas Air has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 7,294,776 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 7,294,776 Shares. (a, b) As of the date hereof, Harbinger Management may be deemed to be the beneficial owner of 7,294,776 Shares, constituting 34.2% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. Harbinger Management has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 7,294,776 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 7,294,776 Shares. Harbinger Management specifically disclaims beneficial ownership in the Shares reported herein except to the extent of its pecuniary interest therein. (a, b) As of the date hereof, HMC Investors may be deemed to be the beneficial owner of 7,294,776 Shares, constituting 34.2% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. HMC Investors has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 7,294,776 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 7,294,776 Shares. HMC Investors specifically disclaims beneficial ownership in the Shares reported herein except to the extent of its pecuniary interest therein. (a, b) As of the date hereof, the Special Fund may be deemed to be the beneficial owner of 1,094,914 Shares, constituting 5.1% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. The Special Fund has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 1,094,914 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 1,094,914 Shares. The Special Fund specifically disclaims beneficial ownership in the Shares reported herein except to the extent of its pecuniary interest therein. (a, b) As of the date hereof, HCPSS may be deemed to be the beneficial owner of 1,094,914 Shares, constituting 5.1% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. HCPSS has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 1,094,914 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 1,094,914 Shares. HCPSS specifically disclaims beneficial ownership in the Shares reported herein except to the extent of its pecuniary interest therein. (a, b) As of the date hereof, HMCNY may be deemed to be the beneficial owner of 1,094,914 Shares, constituting 5.1% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. HMCNY has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 1,094,914 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 1,094,914 Shares. HMCNY specifically disclaims beneficial ownership in the Shares reported herein except to the extent of its pecuniary interest therein. (a, b) As of the date hereof, HMC may be deemed to be the beneficial owner of 8,389,690 Shares, constituting 39.3% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. HMC has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 8,389,690 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 8,389,690 Shares. HMC specifically disclaims beneficial ownership in the Shares reported herein except to the extent of its pecuniary interest therein. (a, b) As of the date hereof, Philip Falcone may be deemed to be the beneficial owner of 8,389,690 Shares, constituting 39.3% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. Mr. Falcone has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 8,389,690 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 8,389,690 Shares. Mr. Falcone specifically disclaims beneficial ownership in the Shares reported herein except to the extent of his pecuniary interest therein. (a, b) As of the date hereof, Raymond J. Harbert may be deemed to be the beneficial owner of 8,389,690 Shares, constituting 39.3% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. Mr. Harbert has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 8,389,690 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 8,389,690 Shares. Mr. Harbert specifically disclaims beneficial ownership in the Shares reported herein except to the extent of his pecuniary interest therein. (a, b) As of the date hereof, Michael D. Luce may be deemed to be the beneficial owner of 8,389,690 Shares, constituting 39.3% of the Shares of the Issuer, based upon 21,333,202 Shares outstanding as of June 30, 2007. Mr. Luce has the sole power to vote or direct the vote of 0 Shares; has the shared power to vote or direct the vote of 8,389,690 Shares; has sole power to dispose or direct the disposition of 0 Shares; and has shared power to dispose or direct the disposition of 8,389,690 Shares. Mr. Luce specifically disclaims beneficial ownership in the Shares reported herein except to the extent of his pecuniary interest therein. (c) The trading dates, number of Shares purchased and sold and price per share for all transactions in the Shares in the past 60 days by the Reporting Persons are set forth in Exhibit B. All transactions were conducted in the open-market. -------------------------------------------------------------------------------- Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer. NO MATERIAL CHANGE FROM THE SCHEDULE 13D, AMENDMENT NO. 10, FILED ON MARCH 19, 2007. -------------------------------------------------------------------------------- Item 7. Material to be Filed as Exhibits. ITEM 7 FROM THE SCHEDULE 13D, AMENDMENT NO. 10, FILED ON MARCH 19, 2007 IS HEREBY AMENDED TO INCLUDE THE FOLLOWING EXHIBITS: Exhibit A: Agreement between the Reporting Persons to file jointly Exhibit B: Schedule of Transactions in the Shares of the Issuer SIGNATURE After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. HMC Atlas Air, L.L.C. By: Harbinger Capital Partners Offshore Manager, L.L.C., Class A Shareholder By: HMC Investors, L.L.C., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- Harbinger Capital Partners Offshore Manager, L.L.C.* By: HMC Investors, L.L.C., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- HMC Investors, L.L.C.* By: /s/ William R. Lucas, Jr. --------------------------- Harbinger Capital Partners Special Situations Fund, L.P. By: Harbinger Capital Partners Special Situations GP, LLC By: HMC - New York, Inc., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- Harbinger Capital Partners Special Situations GP, LLC* By: HMC - New York, Inc., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- HMC - New York, Inc.* By: /s/ William R. Lucas, Jr. --------------------------- Harbert Management Corporation* By: /s/ William R. Lucas, Jr. --------------------------- /s/ Philip Falcone* --------------------------- Philip Falcone /s/ Raymond J. Harbert* --------------------------- Raymond J. Harbert /s/ Michael D. Luce* --------------------------- Michael D. Luce September 11, 2007 * The Reporting Persons disclaim beneficial ownership in the shares reported herein except to the extent of their pecuniary interest therein. Attention. Intentional misstatements or omissions of fact constitute federal criminal violations (see 18 U.S.C. 1001). Exhibit A AGREEMENT The undersigned agree that this Schedule 13D dated September 11, 2007 relating to the Common Stock of Atlas Air Worldwide Holdings, Inc. shall be filed on behalf of the undersigned. HMC Atlas Air, L.L.C. By: Harbinger Capital Partners Offshore Manager, L.L.C. By: HMC Investors, L.L.C., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- Harbinger Capital Partners Offshore Manager, L.L.C.* By: HMC Investors, L.L.C., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- HMC Investors, L.L.C.* By: /s/ William R. Lucas, Jr. --------------------------- Harbinger Capital Partners Special Situations Fund, L.P. By: Harbinger Capital Partners Special Situations GP, LLC By: HMC - New York, Inc., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- Harbinger Capital Partners Special Situations GP, LLC* By: HMC - New York, Inc., Managing Member By: /s/ William R. Lucas, Jr. --------------------------- HMC - New York, Inc.* By: /s/ William R. Lucas, Jr. --------------------------- Harbert Management Corporation* By: /s/ William R. Lucas, Jr. --------------------------- /s/ Philip Falcone* --------------------------- Philip Falcone /s/ Raymond J. Harbert* --------------------------- Raymond J. Harbert /s/ Michael D. Luce* --------------------------- Michael D. Luce * The Reporting Persons disclaim beneficial ownership in the shares reported herein except to the extent of their pecuniary interest therein. September 11, 2007 Exhibit B TRANSACTIONS BY HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS FUND, L.P. Transactions in Common Stock Date of Number of Shares Transaction Purchase/(Sold) Price of Shares ----------- --------------- --------------- 9/6/07 450,000 50.50 SK 03773 0025 808788