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Filing Detail
Form 497 - Definitive materials:
SEC Accession No. 0000912938-08-000267
Filing Date
2008-04-01 09:27:44
Effectiveness Date

Document Format Files

Seq Description Document Type Size
1 STICKER allocation.txt 497 30098
  Complete submission text file 0000912938-08-000267.txt   39188

Series and Classes/Contracts Information:

  Status Name Ticker Symbol
CIK 0000783740      
Series S000002506   MFS Aggressive Growth Allocation Fund
Class/Contract C000006838   A MAAGX
Class/Contract C000006839   R5 MAALX
Class/Contract C000006840   529A EAGTX
Class/Contract C000006841   529B EBAAX
Class/Contract C000006842   529C ECAAX
Class/Contract C000006843   B MBAGX
Class/Contract C000006844   C MCAGX
Class/Contract C000006845   I MIAGX
Class/Contract C000006846   R MAARX
Class/Contract C000006847   R1 MAAFX
Class/Contract C000006848   R2 MAAMX
Class/Contract C000006849   R3 MAWAX
Class/Contract C000006850   R4 MAAHX
  Status Name Ticker Symbol
CIK 0000783740      
Series S000002507   MFS Moderate Allocation Fund
Class/Contract C000006851   A MAMAX
Class/Contract C000006852   R5 MAMJX
Class/Contract C000006853   529A EAMDX
Class/Contract C000006854   529B EBMDX
Class/Contract C000006855   529C ECMAX
Class/Contract C000006856   B MMABX
Class/Contract C000006857   C MMACX
Class/Contract C000006858   I MMAIX
Class/Contract C000006859   R MAMRX
Class/Contract C000006860   R1 MAMFX
Class/Contract C000006861   R2 MAMKX
Class/Contract C000006862   R3 MARRX
Class/Contract C000006863   R4 MAMHX
  Status Name Ticker Symbol
CIK 0000783740      
Series S000002510   MFS Conservative Allocation Fund
Class/Contract C000006887   A MACFX
Class/Contract C000006888   R5 MACJX
Class/Contract C000006889   529A ECLAX
Class/Contract C000006890   529B EBCAX
Class/Contract C000006891   529C ECACX
Class/Contract C000006892   B MACBX
Class/Contract C000006893   C MACVX
Class/Contract C000006894   I MACIX
Class/Contract C000006895   R MACRX
Class/Contract C000006896   R1 MACKX
Class/Contract C000006897   R2 MACLX
Class/Contract C000006898   R3 MCARX
Class/Contract C000006899   R4 MACNX
  Status Name Ticker Symbol
CIK 0000783740      
Series S000002514   MFS Growth Allocation Fund
Class/Contract C000006911   A MAGWX
Class/Contract C000006912   R5 MAGJX
Class/Contract C000006913   529A EAGWX
Class/Contract C000006914   529B EBGWX
Class/Contract C000006915   529C ECGWX
Class/Contract C000006916   B MBGWX
Class/Contract C000006917   C MCGWX
Class/Contract C000006918   I MGWIX
Class/Contract C000006919   R MGARX
Class/Contract C000006920   R1 MAGMX
Class/Contract C000006921   R2 MAGNX
Class/Contract C000006922   R3 MGALX
Class/Contract C000006923   R4 MAGEX
Mailing Address 500 BOYLSTON STREET 15TH FL BOSTON MA 02116
Business Address 500 BOYLSTON ST 15TH FL BOSTON MA 02116 18006372929
MFS SERIES TRUST X (Filer) CIK: 0000783740 (see all company filings)

IRS No.: 000000000 | State of Incorp.: MA | Fiscal Year End: 1130
Type: 497 | Act: 33 | File No.: 033-01657 | Film No.: 08727469