----------------------------- OMB APPROVAL ----------------------------- OMB Number: 3235-0006 Expires: July 31, 2015 Estimated average burden hours per response:............23.8 ----------------------------- UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 13F FORM 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2013 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: The Blackstone Group L.P. Address: 345 Park Avenue New York, NY 10154 Form 13F File Number: 28-13114 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: John G. Finley Title: Authorized Person Phone: (212) 583-5000 Signature, Place, and Date of Signing: /s/ John G. Finley New York, NY May 15, 2013 ---------------------------- ------------------ --------------------- [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: 1 Form 13F Information Table Entry Total: 42 Form 13F Information Table Value Total: $ 9,809,618 ----------- (thousands) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. Number Form 13F File Number Name ------ -------------------- ----------------------- 1 28-12332 GSO Capital Partners LP Explanatory Note: The Blackstone Group L.P. is managed and operated by its general partner, Blackstone Group Management L.L.C., which is in turn wholly-owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, one of its founders. FORM 13F INFORMATION TABLE THE BLACKSTONE GROUP L.P. FOR THE QUARTER ENDED MARCH 31, 2013 VOTING AUTHORITY VALUE SHRS OR SH/ PUT/ INV. OTHER --------------------------- NAME OF ISSUER TITLE OF CLASS CUSIP (1000S) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ---------------- ---------------- ----------- ---------- ----------- ------ ---- ------------ -------- ----------- ---------- ---- ADVANCED MICRO DEVICES INC NOTE 6.000% 5/0 007903 AL 1 $ 1,998 2,000,000 SH SHARED-OTHER 1 2,000,000 BANKUNITED INC COM 06652K 10 3 $ 209,820 8,189,701 SH (a) SOLE 8,189,701 BEAZER HOMES USA INC COM NEW 07556Q 88 1 $ 36,432 2,300,000 SH SHARED-OTHER 1 2,300,000 BEAZER HOMES USA INC COM NEW 07556Q 88 1 $ 32 2,000 SH Call SHARED-OTHER 1 2,000 BIOSCRIP INC. COM 09069N 10 8 $ 244 19,212 SH SHARED-OTHER 19,212 BOOZ ALLEN HAMILTON HLDG COR CL A 099502 10 6 $ 3,494 260,004 SH SHARED-OTHER 260,004 CAPITAL TRUST INC MD CL A NEW 14052H 50 6 $ 13,650 5,000,000 SH SOLE 5,000,000 CHENIERE ENERGY PARTNERS LP COM UNITS 16411Q 10 1 $ 52,761 1,927,710 SH SHARED-OTHER 1 1,927,710 CLEAR CHANNEL OUTDOOR HLDGS CL A 18451C 10 9 $ 9,782 1,305,994 SH SHARED-OTHER 1 1,305,994 CROCS INC COM 227046 10 9 $ 1,346 90,821 SH SHARED-OTHER 1 90,821 CROSSTEX ENERGY INC COM 22765Y 10 4 $ 134,820 7,000,000 SH SHARED-OTHER 1 7,000,000 CROSSTEX ENERGY LP COM 22765U 10 2 $ 16,600 902,162 SH SHARED-OTHER 1 902,162 CUMULUS MEDIA INC CL A 231082 10 8 $ 11,172 3,315,238 SH (b) SOLE 3,315,238 DIAMONDROCK HOSPITALITY CO COM 252784 30 1 $ 67,139 7,211,538 SH SOLE 7,211,538 DRYSHIPS INC NOTE 5.000% 12/0 262498 AB 4 $ 15,951 18,400,000 PRN SHARED-OTHER 1 18,400,000 ENERGY TRANSFER EQUITY LP COM UT LTD PTN 29273V 10 0 $ 29,307 501,143 SH SHARED-OTHER 1 501,143 ENERGY TRANSFER PRTNRS LP UNIT LTD PARTN 29273R 10 9 $ 8,110 160,000 SH SHARED-OTHER 1 160,000 EV ENERGY PARTNERS LP COM UNITS 26926V 10 7 $ 5,597 102,570 SH SHARED-OTHER 1 102,570 FELCOR LODGING TR INC COM 31430F 10 1 $ 36,729 6,172,997 SH SHARED-OTHER 1 6,172,997 FREESCALE SEMICONDUCTOR LTD SHS G3727Q 10 1 $2,920,478 196,136,895 SH (c) SHARED-OTHER 1 196,136,895 GENERAL GROWTH PPTYS INC NEW COM 370023 10 3 $ 465,824 23,431,803 SH (d) SOLE 23,431,803 GMX RES INC NOTE 4.500% 5/0 38011M AJ 7 $ 2,281 4,796,000 PRN SHARED-OTHER 1 4,796,000 GMX RES INC COM 38011M 10 8 $ 1,138 519,805 SH SHARED-OTHER 1 519,805 ISTAR FINL INC COM 45031U 10 1 $ 35,307 3,242,165 SH SHARED-OTHER 1 3,242,165 KNIGHT CAPITAL GROUP INC CL A COM 499005 10 6 $ 211,576 56,875,362 SH (e) SOLE 56,875,362 KOSMOS ENERGY LTD SHS G5315B 10 7 $1,266,730 112,100,012 SH (f) SOLE 112,100,012 LEAP WIRELESS INTL INC COM NEW 521863 30 8 $ 7,813 1,326,500 SH SHARED-OTHER 1 1,326,500 MBIA INC COM 55262C 10 0 $ 51,299 4,995,016 SH SHARED-OTHER 1 4,995,016 MBIA INC COM 55262C 10 0 $ 51 5,000 SH Call SHARED-OTHER 1 5,000 MGIC INVT CORP WIS NOTE 2.000% 4/0 552848 AE 3 $ 511 500,000 PRN SHARED-OTHER 1 500,000 NIELSEN HOLDINGS N V COM N63218 10 6 $1,536,194 42,886,501 SH (g) SOLE 42,886,501 OCEAN RIG UDW INC SHS Y64354 20 5 $ 28,895 1,793,616 SH SHARED-OTHER 1 1,793,616 ORBITZ WORLDWIDE INC COM 68557K 10 9 $ 314,316 55,046,598 SH (h) SOLE 55,046,598 PACIFIC BIOSCIENCES CALIF IN COM 69404D 10 8 $ 6,005 2,411,556 SH SOLE 2,411,556 PBF ENERGY INC CL A 69318G 10 6 $1,259,220 33,877,327 SH SOLE 33,877,327 PENNEY J C INC COM 708160 10 6 $ 113 7,500 SH Put SHARED-OTHER 1 7,500 PENNEY J C INC COM 708160 10 6 $ 4,155 275,000 SH SHARED-OTHER 1 275,000 SARATOGA RES INC TEX COM 803521 10 3 $ 12,768 4,800,000 SH SHARED-OTHER 1 4,800,000 SPDR SERIES TRUST S&P REG BKG 78464A 69 8 $ 24,278 763,700 SH Put SOLE 763,700 SPDR S&P 500 ETF TR TR UNIT 78462F 10 3 $ 3,760 24,000 SH (i) Put SHARED-OTHER 1 24,000 TRW AUTOMOTIVE HLDGS CORP COM 87264S 10 6 $ 565,018 10,273,062 SH SOLE 10,273,062 VANGUARD HEALTH SYS INC COM 922036 20 7 $ 436,904 29,381,568 SH SOLE 29,381,568 (a) Excludes 5,415,794 shares of Series A Nonvoting Convertible Preferred Stock convertible into shares of common stock on a one-for-one basis. (b) These shares are not under the investment discretion of The Blackstone Group L.P. but are under the investment discretion of certain funds of which Mr. Stephen A. Schwarzman is a controlling person. (c) Represents shares held by Freescale LP. Certain funds affiliated with The Blackstone Group L.P. hold 3,395,055 Class A limited partnership interests in Freescale LP, representing 48.02% of the total Class A limited partnership interests outstanding. Certain funds affiliated with The Blackstone Group L.P. also hold 250 shares of Freescale Holdings G.P., Ltd., the general partner of Freescale LP, representing 25% of the total shares outstanding. (d) Includes 1,167,527 of Common Shares owned by Blackstone GGP Principal Transaction Partners L.P., a co-investment entity. (e) Excludes 35,461 restricted stock units representing a contingent right to receive one share. (f) Includes 2,299,722 shares that are not under the investment discretion of The Blackstone Group L.P. but are under the investment discretion of Blackstone Family GP L.L.C., of which Mr. Stephen A. Schwarzman is a controlling person. (g) Represents the proprotionate interest in 195,463,201 shares held by Valcon Acquisition Holding (Luxembourg) S.a.r.l. ("Luxco") attributable to ownership interests in Luxco of certain funds affiliated with The Blackstone Group L.P., including 1,428,072 shares that are not under the investment discretion of The Blackstone Group L.P. but instead are under the investment discretion of Blackstone Family GP L.L.C., of which Mr. Stephen A. Schwarzman is a controlling person. (h) The shares reported herein are not under the investment discretion of The Blackstone Group L.P. but are under the investment discretion of Blackstone LR Associates (Cayman) V Ltd., of which Mr. Stephen A. Schwarzman is a controlling person. (i) Includes two series of SPDR S&P 500 ETF TR put options.