UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                                    Form 13F

                              Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: December 31, 2011

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:    Fortress Investment Group LLC
Address: 1345 Avenue of the Americas, 46th Flr.
         New York, NY  10105

13F File Number:  028-12421

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:      David Brooks
Title:     Secretary, VP and General Counsel
Phone:     212-798-6100

Signature, Place, and Date of Signing:

  /s/  David Brooks     New York, NY     February 14, 2012

Report Type (Check only one.):

[ X]         13F HOLDINGS REPORT.

[  ]         13F NOTICE.

[  ]         13F COMBINATION REPORT.



                              FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:         8

Form 13F Information Table Entry Total:    95

Form 13F Information Table Value Total:    $1,447,157 (thousands)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F file number(s) of all
institutional managers with respect to which this report is filed, other
than the manager filing this report.

No.  13F File Number            Name

1    028-12421                  Fortress Investment Group LLC
2    028-12417                  FIG Corp
3    028-12418                  Fortress Operating Entity I LP
4    028-10806                  FIG LLC
5    028-10807                  Drawbridge Global Macro Advisors LLC
6    028-11237                  Drawbridge Special Opportunities Advisors LLC
7    028-10162                  FIG Advisors LLC
8    028-13249                  Fortress Commodities Advisors LLC
9    028-13498                  Fortress Macro Advisors LLC



                                    
                                                     FORM 13F INFORMATION TABLE
                                                             VALUE  SHARES/ SH/ PUT/ INVSTMT  OTHER            VOTING AUTHORITY
NAME OF ISSUER                 TITLE OF CLASS   CUSIP     (x$1000)  PRN AMT PRN CALL DSCRETN MANAGERS         SOLE   SHARED     NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
ABBOTT LABS                    COM              002824100     4048    72000 SH       DEFINED 1 2 3 4 9       72000        0        0
ABBOTT LABS                    COM              002824100     1012    18000 SH       DEFINED 1 2 3 4         18000        0        0
AIRCASTLE LTD                  COM              G0129K104   213060 16750002 SH       DEFINED 1 2 3 4      16750002        0        0
AMERICAN CAP LTD               COM              02503Y103   121057 17987604 SH       DEFINED 1 2 3 4      17987604        0        0
AMERICAN CAP LTD               COM              02503Y103    25578  3800631 SH       DEFINED 1 2 3 4 6     3800631        0        0
ANGLOGOLD ASHANTI LTD          SPONSORED ADR    035128206     4429   104334 SH       DEFINED 1 2 3          104334        0        0
APOLLO GLOBAL MGMT LLC         CL A SHS         037612306       43     3470 SH       DEFINED 1 2 3 4          3470        0        0
APOLLO GLOBAL MGMT LLC         CL A SHS         037612306      641    51687 SH       DEFINED 1 2 3 4 6       51687        0        0
BANK OF AMERICA CORPORATION    7.25%CNV PFD L   060505682      276      351 SH       DEFINED 1 2 3 4           351        0        0
BANK OF AMERICA CORPORATION    7.25%CNV PFD L   060505682     4440     5649 SH       DEFINED 1 2 3 4 6        5649        0        0
BOEING CO                      COM              097023105     3521    48000 SH       DEFINED 1 2 3 4 9       48000        0        0
BROOKDALE SR LIVING INC        COM              112463104   305957 17593826 SH       DEFINED 1 2 3 4      17593826        0        0
C&J ENERGY SVCS INC            COM              12467B304       81     3900 SH       DEFINED 1 2 3 4 9        3900        0        0
C&J ENERGY SVCS INC            COM              12467B304       23     1100 SH       DEFINED 1 2 3 4          1100        0        0
CATERPILLAR INC DEL            COM              149123101     3443    38000 SH       DEFINED 1 2 3 4 9       38000        0        0
CIT GROUP INC                  COM NEW          125581801    13839   396875 SH       DEFINED 1 2 3 4        396875        0        0
CITIGROUP INC                  COM NEW          172967424    11413   433793 SH       DEFINED 1 2 3 4        433793        0        0
CITIGROUP INC                  COM NEW          172967424    36997  1406207 SH       DEFINED 1 2 3 4 9     1406207        0        0
COOPER INDUSTRIES PLC          SHS              G24140108     1949    36000 SH       DEFINED 1 2 3 4 9       36000        0        0
CORNERSTONE ONDEMAND INC       COM              21925Y103      117     6397 SH       DEFINED 1 2 3 4          6397        0        0
CORNERSTONE ONDEMAND INC       COM              21925Y103      430    23603 SH       DEFINED 1 2 3 4 9       23603        0        0
DANAHER CORP DEL               COM              235851102     1976    42000 SH       DEFINED 1 2 3 4 9       42000        0        0
DANAHER CORP DEL               COM              235851102    16989   361161 SH       DEFINED 1 2 3 4 6      361161        0        0
DANAHER CORP DEL               COM              235851102     1140    24242 SH       DEFINED 1 2 3 4         24242        0        0
DIAMOND OFFSHORE DRILLING IN   COM              25271C102     1712    30975 SH       DEFINED 1 2 3 4         30975        0        0
DOVER CORP                     COM              260003108     2380    41000 SH       DEFINED 1 2 3 4 9       41000        0        0
ELECTRONIC ARTS INC            COM              285512109      397    19300 SH       DEFINED 1 2 3 4         19300        0        0
ELECTRONIC ARTS INC            COM              285512109     2692   130700 SH       DEFINED 1 2 3 4 9      130700        0        0
EQUINIX INC                    COM NEW          29444U502     1359    13400 SH  PUT  DEFINED 1 2 3 4         13400        0        0
EQUINIX INC                    COM NEW          29444U502     9340    92100 SH  PUT  DEFINED 1 2 3 4 9       92100        0        0
GENERAL GROWTH PPTYS INC NEW   COM              370023103      483    32160 SH       DEFINED 1 2 3 4         32160        0        0
GLOBAL EAGLE ACQUISITION COR   UNIT 99/99/9999  37951D201      543    53937 SH       DEFINED 1 2 3 4         53937        0        0
GLOBAL EAGLE ACQUISITION COR   UNIT 99/99/9999  37951D201     8108   803563 SH       DEFINED 1 2 3 4 6      803563        0        0
GOLD FIELDS LTD NEW            SPONSORED ADR    38059T106     3080   202000 SH       DEFINED 1 2 3          202000        0        0
GOOGLE INC                     CL A             38259P508     2929     4536 SH       DEFINED 1 2 3 4          4536        0        0
GOOGLE INC                     CL A             38259P508    16460    25483 SH       DEFINED 1 2 3 4 9       25483        0        0
HARMAN INTL INDS INC           COM              413086109     1560    41000 SH       DEFINED 1 2 3 4 9       41000        0        0
HOLLYFRONTIER CORP             COM              436106108     2048    87500 SH       DEFINED 1 2 3 4 9       87500        0        0
HONEYWELL INTL INC             COM              438516106     3533    65000 SH       DEFINED 1 2 3 4 9       65000        0        0
HOWARD HUGHES CORP             COM              44267D107      136     3081 SH       DEFINED 1 2 3 4          3081        0        0
ISHARES TR                     FTSE CHINA25 IDX 464287184     1538    44100 SH       DEFINED 1 2 3 4         44100        0        0
ISHARES TR                     FTSE CHINA25 IDX 464287184    10423   298900 SH       DEFINED 1 2 3 4 9      298900        0        0
ISTAR FINL INC                 COM              45031U101       67    12680 SH       DEFINED 1 2 3 4         12680        0        0
ISTAR FINL INC                 COM              45031U101      746   141113 SH       DEFINED 1 2 3 4 6      141113        0        0
JIVE SOFTWARE INC              COM              47760A108       71     4400 SH       DEFINED 1 2 3 4          4400        0        0
JIVE SOFTWARE INC              COM              47760A108      249    15600 SH       DEFINED 1 2 3 4 9       15600        0        0
JPMORGAN CHASE & CO            COM              46625H100    19059   573200 SH       DEFINED 1 2 3 4 9      573200        0        0
JPMORGAN CHASE & CO            COM              46625H100     5879   176800 SH       DEFINED 1 2 3 4        176800        0        0
KKR & CO L P DEL               COM UNITS        48248M102     6851   534000 SH       DEFINED 1 2 3          534000        0        0
KLA-TENCOR CORP                COM              482480100      651    13500 SH       DEFINED 1 2 3 4         13500        0        0
KLA-TENCOR CORP                COM              482480100     4415    91500 SH       DEFINED 1 2 3 4 9       91500        0        0
LIMELIGHT NETWORKS INC         COM              53261M104       31    10600 SH       DEFINED 1 2 3 4         10600        0        0
LIMELIGHT NETWORKS INC         COM              53261M104      117    39400 SH       DEFINED 1 2 3 4 9       39400        0        0
MEADWESTVACO CORP              COM              583334107     2097    70000 SH       DEFINED 1 2 3 4 9       70000        0        0
MERITAGE HOMES CORP            COM              59001A102      397    17100 SH       DEFINED 1 2 3 4         17100        0        0
MERITAGE HOMES CORP            COM              59001A102     1575    67900 SH       DEFINED 1 2 3 4 9       67900        0        0
MPG OFFICE TR INC              COM              553274101       10     5000 SH       DEFINED 1 2 3 4          5000        0        0
MPG OFFICE TR INC              COM              553274101      150    75285 SH       DEFINED 1 2 3 4 6       75285        0        0
NEWCASTLE INVT CORP            COM              65105M108     4770  1025729 SH       DEFINED 1             1025729        0        0
NEWCASTLE INVT CORP            COM              65105M108      891   191600 SH       DEFINED 1 2 3          191600        0        0
NOVELLUS SYS INC               COM              670008101    10739   260100 SH       DEFINED 1 2 3 4 9      260100        0        0
NOVELLUS SYS INC               COM              670008101     1586    38400 SH       DEFINED 1 2 3 4         38400        0        0
ON TRACK INNOVATION LTD        SHS              M8791A109      142   121429 SH       DEFINED 1 2 3          121429        0        0
PACCAR INC                     COM              693718108     2473    66000 SH       DEFINED 1 2 3 4 9       66000        0        0
PENN NATL GAMING INC           COM              707569109     6008   157823 SH       DEFINED 1 2 3 4        157823        0        0
PRIMORIS SVCS CORP             COM              74164F103      671    44923 SH       DEFINED 1 2 3 4         44923        0        0
RAILAMERICA INC                COM              750753402   451911 30350000 SH       DEFINED 1 2 3 4      30350000        0        0
SERVICESOURCE INTL LLC         COM              81763U100       47     3000 SH       DEFINED 1 2 3 4          3000        0        0
SERVICESOURCE INTL LLC         COM              81763U100      165    10500 SH       DEFINED 1 2 3 4 9       10500        0        0
SPANSION INC                   COM CL A NEW     84649R200      265    32028 SH       DEFINED 1 2 3 4         32028        0        0
SPANSION INC                   COM CL A NEW     84649R200     4364   526993 SH       DEFINED 1 2 3 4 6      526993        0        0
SPANSION INC                   COM CL A NEW     84649R200     7922   956712 SH       DEFINED 1 2 3          956712        0        0
SPX CORP                       COM              784635104     1929    32000 SH       DEFINED 1 2 3 4 9       32000        0        0
STANLEY BLACK & DECKER INC     COM              854502101     2386    35300 SH       DEFINED 1 2 3 4 9       35300        0        0
TERADATA CORP DEL              COM              88076W103     1156    29600 SH  PUT  DEFINED 1 2 3 4         29600        0        0
TERADATA CORP DEL              COM              88076W103     5877   150400 SH  PUT  DEFINED 1 2 3 4 9      150400        0        0
TERADYNE INC                   COM              880770102      384    28200 SH       DEFINED 1 2 3 4         28200        0        0
TERADYNE INC                   COM              880770102     2614   191800 SH       DEFINED 1 2 3 4 9      191800        0        0
TIME WARNER CABLE INC          COM              88732J207      947    14897 SH       DEFINED 1 2 3 4         14897        0        0
TIME WARNER CABLE INC          COM              88732J207     9033   142103 SH       DEFINED 1 2 3 4 6      142103        0        0
TYCO INTERNATIONAL LTD         SHS              H89128104     3550    76000 SH       DEFINED 1 2 3 4 9       76000        0        0
UNION PAC CORP                 COM              907818108     3178    30000 SH       DEFINED 1 2 3 4 9       30000        0        0
US BANCORP DEL                 COM NEW          902973304     2870   106100 SH       DEFINED 1 2 3 4        106100        0        0
US BANCORP DEL                 COM NEW          902973304     9302   343900 SH       DEFINED 1 2 3 4 9      343900        0        0
VISA INC                       COM CL A         92826C839     5087    50100 SH       DEFINED 1 2 3 4 9       50100        0        0
VISA INC                       COM CL A         92826C839     1006     9900 SH       DEFINED 1 2 3 4          9900        0        0
WCA WASTE CORP                 COM              92926K103      395    60600 SH       DEFINED 1 2 3 4         60600        0        0
WELLS FARGO & CO NEW           COM              949746101     2924   106100 SH       DEFINED 1 2 3 4        106100        0        0
WELLS FARGO & CO NEW           COM              949746101     9478   343900 SH       DEFINED 1 2 3 4 9      343900        0        0
WESCO INTL INC                 COM              95082P105     2332    44000 SH       DEFINED 1 2 3 4 9       44000        0        0
WILLBROS GROUP INC DEL         COM              969203108      166    45350 SH       DEFINED 1 2 3 4         45350        0        0
YAHOO INC                      COM              984332106     3197   198200 SH  CALL DEFINED 1 2 3 4 9      198200        0        0
YAHOO INC                      COM              984332106      430    26677 SH       DEFINED 1 2 3 4         26677        0        0
YAHOO INC                      COM              984332106     2948   182766 SH       DEFINED 1 2 3 4 9      182766        0        0
YAHOO INC                      COM              984332106      469    29100 SH  CALL DEFINED 1 2 3 4         29100        0        0