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:     Ally Financial Inc.
Address:  200 Renaissance Center
          P.O. Box 200
          Detroit, MI 48265-2000

Form 13F File Number: 28-14534

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:     Cathy L. Quenneville
Title:    Secretary
Phone:    313-656-6301

Signature, Place, and Date of Signing:

/s/ Cathy L. Quenneville      Detroit, Michigan             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:                  3

Form 13F Information Table Entry Total:           135

Form 13F Information Table Value Total:       973,781

                                          (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.

No.   Form 13F File Number   Name
---   --------------------   ----
01    28-14536               Ally Insurance Holdings Inc.
02    28-14535               Motors Insurance Corporation
03    28-15350               Ally Investment Management LLC

                                      2



FORM 13F INFORMATION TABLE



COLUMN 1                        COLUMN 2    COLUMN 3   COLUMN 4        COLUMN 5       COLUMN 6    COLUMN 7        COLUMN 8
--------                        --------  ------------ ---------  ------------------  ----------  -------- ---------------------
                                TITLE OF                MARKET      AMOUNT & TYPE     INVESTMENT   OTHER           VOTING
NAME OF ISSUER                   CLASS    CUSIP NUMBER   VALUE       OF SECURITY      DISCRETION  MANAGERS       AUTHORITY
--------------                  --------  ------------ ---------  ------------------  ----------  -------- ---------------------
                                                                  Shrs or
                                                                    Prn    Sh/  Put/
                                                       (x$1,000)   Amnt    Prn  Call                        SOLE   SHARED  NONE
                                                       ---------  -------  ---  -----                      ------- ------ ------
                                                                                         
Aflac Inc                       COM          001055102     5,202  100,000  SH          DEFINED           1 100,000
Air Products & Chemicals Inc    COM          009158106     5,663   65,000  SH          DEFINED           2  65,000
Altria Group Inc                COM          02209S103    10,661  310,000  SH          DEFINED           1 310,000
Amazon.com Inc                  COM          023135106    10,127   38,000  SH          DEFINED           1  38,000
American Capital Agency Corp    COM          02503X105     5,681  173,300  SH          DEFINED           1 173,300
American Express Co             COM          025816109     7,421  110,000  SH          DEFINED           1 110,000
American International
  Group Inc                     COM          026874784     5,241  135,000  SH          DEFINED           1 135,000
Apache Corp                     COM          037411105    17,747  230,000  SH          DEFINED           1 230,000
Apple Inc                       COM          037833100    24,345   55,000  SH          DEFINED           1  55,000
Archer-daniels-midland Co       COM          039483102     5,903  175,000  SH          DEFINED           1 175,000
Archer-daniels-midland Co       OPTIONS      039483102      (691)  (1,750) SH   CALL   DEFINED           3                (1,750)
At&t Inc                        COM          00206R102    15,960  435,000  SH          DEFINED         1,2 435,000
At&t Inc                        OPTIONS      00206R102      (287)  (1,500) SH   CALL   DEFINED           3                (1,500)
Autodesk Inc                    COM          052769106     5,361  130,000  SH          DEFINED           1 130,000
Autozone Inc                    COM          053332102     4,364   11,000  SH          DEFINED           1  11,000
Baidu Inc                       ADR          056752108     2,280   26,000  SH          DEFINED           1  26,000
Baker Hughes Inc                COM          057224107    13,923  300,000  SH          DEFINED           1 300,000
Baxter International Inc        COM          071813109     2,906   40,000  SH          DEFINED           2  40,000
Bed Bath & Beyond Inc           COM          075896100     8,697  135,000  SH          DEFINED           2 135,000
Boeing Co/the                   COM          097023105    10,731  125,000  SH          DEFINED           1 125,000
Broadcom Corp                   COM          111320107     5,027  145,000  SH          DEFINED           1 145,000
Capital One Financial Corp      COM          14040H105     5,495  100,000  SH          DEFINED           1 100,000
Carnival Corp                   COM          143658300     8,849  258,000  SH          DEFINED           1 258,000
Carnival Corp                   OPTIONS      143658300       (24)    (680) SH   CALL   DEFINED           3                  (680)
Caterpillar Inc                 COM          149123101     3,914   45,000  SH          DEFINED           2  45,000
Ch Robinson Worldwide Inc       COM          12541W209     9,335  157,000  SH          DEFINED           1 157,000
Cisco Systems Inc               COM          17275R102     7,528  360,000  SH          DEFINED           2 360,000
Coach Inc                       COM          189754104     5,999  120,000  SH          DEFINED           1 120,000
Coca-cola Co/the                COM          191216100    15,165  375,000  SH          DEFINED           1 375,000
Conocophillips                  COM          20825C104     2,705   45,000  SH          DEFINED           1  45,000
Costco Wholesale Corp           COM          22160K105     7,958   75,000  SH          DEFINED           1  75,000
Cr Bard Inc                     COM          067383109     2,016   20,000  SH          DEFINED           2  20,000
Darden Restaurants Inc          COM          237194105    11,370  220,000  SH          DEFINED           1 220,000
Darden Restaurants Inc          OPTIONS      237194105      (342)  (1,900) SH   CALL   DEFINED           3                (1,900)
Darden Restaurants Inc          OPTIONS      237194105      (125)    (300) SH   CALL   DEFINED           3                  (300)
Dollar General Corp             COM          256677105     7,587  150,000  SH          DEFINED           1 150,000
Dollar General Corp             OPTIONS      256677105      (102)  (1,500) SH   CALL   DEFINED           3                (1,500)
Dow Chemical Co/the             COM          260543103     4,935  155,000  SH          DEFINED           1 155,000
Dow Chemical Co/the             OPTIONS      260543103      (177)  (1,550) SH   CALL   DEFINED           3                (1,550)
Ebay Inc                        COM          278642103     2,711   50,000  SH          DEFINED           1  50,000
Emc Corp/ma                     COM          268648102    15,051  630,000  SH          DEFINED           1 630,000
Emerson Electric Co             COM          291011104     2,514   45,000  SH          DEFINED           2  45,000
Entergy Corp                    COM          29364G103     4,408   69,700  SH          DEFINED           1  69,700
Expeditors International Of
  Washington Inc                COM          302130109     7,321  205,000  SH          DEFINED           1 205,000
Express Scripts Holding Co      COM          30219G108    10,377  180,000  SH          DEFINED           1 180,000
Exxon Mobil Corp                COM          30231G102    22,528  250,000  SH          DEFINED           2 250,000
Facebook Inc                    COM          30303M102     4,988  195,000  SH          DEFINED           1 195,000
Family Dollar Stores Inc        COM          307000109     5,905  100,000  SH          DEFINED           1 100,000
Fedex Corp                      COM          31428X106     3,928   40,000  SH          DEFINED           2  40,000
Franklin Resources Inc          COM          354613101     3,016   20,000  SH          DEFINED           2  20,000
Freeport-mcmoran Copper &
  Gold Inc                      COM          35671D857    20,522  620,000  SH          DEFINED           1 620,000
Freeport-mcmoran Copper &
  Gold Inc                      OPTIONS      35671D857       (46)  (3,050) SH   CALL   DEFINED           3                (3,050)
General Dynamics Corp           COM          369550108     5,641   80,000  SH          DEFINED           2  80,000
General Electric Co             COM          369604103    21,948  949,300  SH          DEFINED         1,2 949,300
General Electric Co             OPTIONS      369604103      (158)  (2,358) SH   CALL   DEFINED           3                (2,358)






COLUMN 1                   COLUMN 2    COLUMN 3   COLUMN 4         COLUMN 5        COLUMN 6    COLUMN 7         COLUMN 8
--------                   --------  ------------ ---------  --------------------  ----------  -------- ------------------------
                           TITLE OF                MARKET       AMOUNT & TYPE      INVESTMENT   OTHER            VOTING
NAME OF ISSUER              CLASS    CUSIP NUMBER   VALUE        OF SECURITY       DISCRETION  MANAGERS         AUTHORITY
--------------             --------  ------------ ---------  --------------------  ----------  -------- ------------------------
                                                              Shrs or
                                                                Prn     Sh/  Put/
                                                  (x$1,000)    Amnt     Prn  Call                         SOLE    SHARED   NONE
                                                  ---------  ---------  ---  -----                      --------- ------ -------
                                                                                        
Glaxosmithkline Plc        ADR          37733W105     3,495     74,500  SH          DEFINED           1    74,500
Glaxosmithkline Plc        OPTIONS      37733W105      (227)      (745) SH   CALL   DEFINED           3                     (745)
Goldman Sachs Group
  Inc/the                  COM          38141G104     2,943     20,000  SH          DEFINED           2    20,000
Google Inc                 COM          38259P508     4,764      6,000  SH          DEFINED           1     6,000
Google Inc                 OPTIONS      38259P508       (25)       (60) SH   CALL   DEFINED           3                      (60)
Hess Corp                  COM          42809H107     2,506     35,000  SH          DEFINED           1    35,000
Intel Corp                 COM          458140100    17,699    810,000  SH          DEFINED           1   810,000
Invesco Ltd                COM          G491BT108     5,647    195,000  SH          DEFINED           1   195,000
Ishares Msci Brazil
  Capped Index Fund        ETF          464286400     4,903     90,000  SH          DEFINED           1    90,000
Ishares Msci Chile Capped
  Investable Market
  Index Fund               ETF          464286640     1,493     23,000  SH          DEFINED           1    23,000
Ishares Msci Emerging
  Markets Index Fund       ETF          464287234    59,250  1,385,000  SH          DEFINED           1 1,385,000
Ishares Msci Taiwan
  Index Fund               ETF          464286731     4,469    335,000  SH          DEFINED           1   335,000
Johnson & Johnson          COM          478160104    13,045    160,000  SH          DEFINED           2   160,000
Jpmorgan Chase & Co        COM          46625H100    12,340    260,000  SH          DEFINED           2   260,000
Lockheed Martin Corp       COM          539830109     8,687     90,000  SH          DEFINED         1,2    90,000
Lorillard Inc              COM          544147101     5,447    135,000  SH          DEFINED           1   135,000
Lorillard Inc              OPTIONS      544147101      (131)    (1,350) SH   CALL   DEFINED           3                   (1,350)
Lowe's Cos Inc             COM          548661107     5,119    135,000  SH          DEFINED           2   135,000
Market Vectors Russia Etf  ETF          57060U506     2,773    100,000  SH          DEFINED           1   100,000
Mcdonald's Corp            COM          580135101     4,985     50,000  SH          DEFINED           2    50,000
Merck & Co Inc             OPTIONS      58933Y105       (93)    (1,350) SH   CALL   DEFINED           3                   (1,350)
Merck & Co Inc             COM          58933Y105    19,019    430,000  SH          DEFINED         1,2   430,000
Metlife Inc                COM          59156R108    15,778    415,000  SH          DEFINED           1   415,000
Metlife Inc                OPTIONS      59156R108       (47)    (1,750) SH   CALL   DEFINED           3                   (1,750)
Microchip Technology Inc   COM          595017104     2,757     75,000  SH          DEFINED           1    75,000
Microchip Technology Inc   OPTIONS      595017104      (194)      (750) SH   CALL   DEFINED           3                     (750)
Microsoft Corp             COM          594918104    27,895    975,000  SH          DEFINED         1,2   975,000
Microsoft Corp             OPTIONS      594918104      (155)    (1,850) SH   CALL   DEFINED           3                   (1,850)
Mondelez International Inc COM          609207105     8,571    280,000  SH          DEFINED           2   280,000
Morgan Stanley             COM          617446448     2,857    130,000  SH          DEFINED           1   130,000
Murphy Oil Corp            COM          626717102     7,966    125,000  SH          DEFINED           1   125,000
Newmont Mining Corp        COM          651639106    18,641    445,000  SH          DEFINED           1   445,000
Nordstrom Inc              COM          655664100     5,247     95,000  SH          DEFINED           1    95,000
Northern Trust Corp        COM          665859104    10,639    195,000  SH          DEFINED           1   195,000
Occidental Petroleum Corp  COM          674599105     7,445     95,000  SH          DEFINED           1    95,000
Oracle Corp                COM          68389X105    12,774    395,000  SH          DEFINED           1   395,000
Paychex Inc                COM          704326107    16,658    475,000  SH          DEFINED         1,2   475,000
Pepsico Inc                COM          713448108    15,189    192,000  SH          DEFINED           2   192,000
Petroleo Brasileiro Sa     ADR          71654V408       994     60,000  SH          DEFINED           1    60,000
PFIZER INC                 COM          717081103     8,081    280,000  SH          DEFINED           2   280,000
Philip Morris
  International Inc        COM          718172109     5,563     60,000  SH          DEFINED           2    60,000
Pnc Financial Services
  Group Inc                COM          693475105     5,320     80,000  SH          DEFINED           2    80,000
Powershares KBW Bank       ETF          73937B746       564     21,500  SH          DEFINED           3    21,500
Praxair Inc                COM          74005P104     5,019     45,000  SH          DEFINED           1    45,000
Precision Castparts Corp   COM          740189105     5,309     28,000  SH          DEFINED           2    28,000
Procter & Gamble Co/the    COM          742718109     5,394     70,000  SH          DEFINED           2    70,000
Prudential Financial Inc   COM          744320102    12,978    220,000  SH          DEFINED           1   220,000
Prudential Financial Inc   OPTIONS      744320102      (446)      (850) SH   CALL   DEFINED           3                     (850)
Qualcomm Inc               COM          747525103    15,399    230,000  SH          DEFINED           1   230,000
Rockwell Collins Inc       COM          774341101     7,890    125,000  SH          DEFINED           1   125,000
Royal Dutch Shell Plc      ADR          780259206     4,887     75,000  SH          DEFINED           1    75,000
S&P 500 Index              OPTIONS      SPX000009       201        600  SH    PUT   DEFINED           3                      600
S&P 500 Index              OPTIONS      SPX000009    (1,686)      (600) SH   CALL   DEFINED           3                     (600)
Schlumberger Ltd           COM          806857108    13,480    180,000  SH          DEFINED           1   180,000
Select Sector SPDR         ETF          81369Y803      (621)   (20,500) SH          DEFINED           3                  (20,500)
Staples Inc                COM          855030102     4,566    340,000  SH          DEFINED           1   340,000
T Rowe Price Group Inc     COM          74144T108     5,990     80,000  SH          DEFINED           1    80,000
Target Corp                COM          87612E106     5,818     85,000  SH          DEFINED           1    85,000
Teva Pharmaceutical
  Industries Ltd           ADR          881624209    12,301    310,000  SH          DEFINED           1   310,000
Tiffany & Co               COM          886547108     5,216     75,000  SH          DEFINED           2    75,000
Time Warner Cable Inc      COM          88732J207     5,283     55,000  SH          DEFINED           2    55,000
Total Sa                   ADR          89151E109    11,515    240,000  SH          DEFINED           1   240,000






COLUMN 1                    COLUMN 2    COLUMN 3   COLUMN 4         COLUMN 5        COLUMN 6    COLUMN 7         COLUMN 8
--------                    --------  ------------ ---------  --------------------  ----------  -------- -----------------------
                            TITLE OF                MARKET       AMOUNT & TYPE      INVESTMENT   OTHER            VOTING
NAME OF ISSUER               CLASS    CUSIP NUMBER   VALUE        OF SECURITY       DISCRETION  MANAGERS        AUTHORITY
--------------              --------  ------------ ---------  --------------------  ----------  -------- -----------------------
                                                               Shrs or
                                                                 Prn     Sh/  Put/
                                                   (x$1,000)    Amnt     Prn  Call                         SOLE    SHARED  NONE
                                                   ---------  ---------  ---  -----                      --------- ------ ------
                                                                                         
United Parcel Service Inc   COM          911312106     6,013     70,000  SH          DEFINED           1    70,000
United Parcel Service Inc   OPTIONS      911312106      (357)      (700) SH   CALL   DEFINED           3                    (700)
Unitedhealth Group Inc      COM          91324P102     5,435     95,000  SH          DEFINED           1    95,000
Us Bancorp                  COM          902973304    15,269    450,000  SH          DEFINED           1   450,000
Vale Sa                     ADR          91912E105     1,297     75,000  SH          DEFINED           1    75,000
Verizon Communications Inc  COM          92343V104     5,529    112,500  SH          DEFINED           1   112,500
Verizon Communications Inc  OPTIONS      92343V104      (574)    (1,125) SH   CALL   DEFINED           3                  (1,125)
Vmware Inc                  COM          928563402     2,761     35,000  SH          DEFINED           1    35,000
Vodafone Group Plc          ADR          92857W209     5,682    200,000  SH          DEFINED           1   200,000
Wal-mart Stores Inc         COM          931142103    16,088    215,000  SH          DEFINED           2   215,000
Wellpoint Inc               COM          94973V107     5,298     80,000  SH          DEFINED           1    80,000
Wells Fargo & Co            COM          949746101    23,859    645,000  SH          DEFINED         1,2   645,000
Wells Fargo & Co            OPTIONS      949746101      (190)    (1,450) SH   CALL   DEFINED           3                  (1,450)
Western Union Co/the        COM          959802109    16,694  1,110,000  SH          DEFINED           1 1,110,000
Western Union Co/the        OPTIONS      959802109      (335)    (3,600) SH   CALL   DEFINED           3                  (3,600)
Williams Cos Inc/the        COM          969457100     8,054    215,000  SH          DEFINED           1   215,000
Williams Cos Inc/the        OPTIONS      969457100      (520)    (2,150) SH   CALL   DEFINED           3                  (2,150)
Wynn Resorts Ltd            COM          983134107     5,632     45,000  SH          DEFINED           1    45,000