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Filing Detail
Form N-CSRS - Certified Shareholder Report, Semi-Annual:
SEC Accession No. 0001193125-11-113762
Filing Date
2011-04-28
Accepted
2011-04-28 10:03:56
Documents
52
Period of Report
2011-02-28
Effectiveness Date
2011-04-28

Document Format Files

Seq Description Document Type Size
1 MFS SERIES TRUST I N-CSRS dncsrs.htm N-CSRS 7321136
2 SECTION 302 CERTIFICATIONS dex99cert.htm EX-99.CERT 19566
3 SECTION 906 CERTIFICATIONS dex99906cert.htm EX-99.906CERT 7248
4 GRAPHIC g150126202c_boxes.jpg GRAPHIC 19527
5 GRAPHIC g150126edelivery_logo.jpg GRAPHIC 10351
6 GRAPHIC g150126g10p54.jpg GRAPHIC 7604
7 GRAPHIC g150126g17w75.jpg GRAPHIC 29742
8 GRAPHIC g150126g28e17.jpg GRAPHIC 6580
9 GRAPHIC g150126g64j68.jpg GRAPHIC 12732
10 GRAPHIC g150126logo_01.jpg GRAPHIC 9632
11 GRAPHIC g150132202c_boxes.jpg GRAPHIC 19527
12 GRAPHIC g150132edelivery_logo.jpg GRAPHIC 10351
13 GRAPHIC g150132g10p54.jpg GRAPHIC 7604
14 GRAPHIC g150132g28e17.jpg GRAPHIC 6580
15 GRAPHIC g150132g52j16.jpg GRAPHIC 11721
16 GRAPHIC g150132g64j68.jpg GRAPHIC 12732
17 GRAPHIC g150132logo_01.jpg GRAPHIC 9632
18 GRAPHIC g150135202c_boxes.jpg GRAPHIC 19527
19 GRAPHIC g150135edelivery_logo.jpg GRAPHIC 10351
20 GRAPHIC g150135g10p54.jpg GRAPHIC 7604
21 GRAPHIC g150135g28e17.jpg GRAPHIC 6580
22 GRAPHIC g150135g39f53.jpg GRAPHIC 11982
23 GRAPHIC g150135g64j68.jpg GRAPHIC 12732
24 GRAPHIC g150135logo_01.jpg GRAPHIC 9632
25 GRAPHIC g152822202c_boxes.jpg GRAPHIC 19527
26 GRAPHIC g152822edelivery_logo.jpg GRAPHIC 10351
27 GRAPHIC g152822g10p54.jpg GRAPHIC 7604
28 GRAPHIC g152822g28e17.jpg GRAPHIC 6580
29 GRAPHIC g152822g61h40.jpg GRAPHIC 11826
30 GRAPHIC g152822g64j68.jpg GRAPHIC 12732
31 GRAPHIC g152822logo_01.jpg GRAPHIC 9632
32 GRAPHIC g155405202c_boxes.jpg GRAPHIC 19527
33 GRAPHIC g155405edelivery_logo.jpg GRAPHIC 10351
34 GRAPHIC g155405g10p54.jpg GRAPHIC 7604
35 GRAPHIC g155405g28e17.jpg GRAPHIC 6580
36 GRAPHIC g155405g39f53.jpg GRAPHIC 11907
37 GRAPHIC g155405g64j68.jpg GRAPHIC 12732
38 GRAPHIC g155405logo_01.jpg GRAPHIC 9632
39 GRAPHIC g155413202c_boxes.jpg GRAPHIC 19527
40 GRAPHIC g155413edelivery_logo.jpg GRAPHIC 10351
41 GRAPHIC g155413g10p54.jpg GRAPHIC 7604
42 GRAPHIC g155413g28e17.jpg GRAPHIC 6580
43 GRAPHIC g155413g39f53.jpg GRAPHIC 11304
44 GRAPHIC g155413g64j68.jpg GRAPHIC 12732
45 GRAPHIC g155413logo_01.jpg GRAPHIC 9632
46 GRAPHIC g155436202c_boxes.jpg GRAPHIC 19527
47 GRAPHIC g155436edelivery_logo.jpg GRAPHIC 10351
48 GRAPHIC g155436g10p54.jpg GRAPHIC 7604
49 GRAPHIC g155436g28e17.jpg GRAPHIC 6580
50 GRAPHIC g155436g39f53.jpg GRAPHIC 11354
51 GRAPHIC g155436g64j68.jpg GRAPHIC 12732
52 GRAPHIC g155436logo_01.jpg GRAPHIC 9632
  Complete submission text file 0001193125-11-113762.txt   8144579

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000762   MFS Cash Reserve Fund
Class/Contract C000002179   A MSRXX
Class/Contract C000002180   529B MRBXX
Class/Contract C000002181   529C MRCXX
Class/Contract C000002182   B MCRXX
Class/Contract C000002183   C MCCXX
Class/Contract C000002184   R1 CRVXX
Class/Contract C000002186   R2 MCRMX
Class/Contract C000002187   R3 CRJXX
Class/Contract C000002188   R4 MCRLX
Class/Contract C000002189   529A MACXX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000763   MFS Core Equity Fund
Class/Contract C000002190   A MRGAX
Class/Contract C000002191   R4 MRGJX
Class/Contract C000002192   B MRGBX
Class/Contract C000002193   C MRGCX
Class/Contract C000002194   I MRGRX
Class/Contract C000002196   R1 MRGGX
Class/Contract C000002198   R2 MRERX
Class/Contract C000002199   R3 MRGHX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000764   MFS Core Growth Fund
Class/Contract C000002200   A MFCAX
Class/Contract C000002201   R4 MFCJX
Class/Contract C000002202   B MFCBX
Class/Contract C000002203   C MFCCX
Class/Contract C000002204   I MFCIX
Class/Contract C000002206   R1 MFCGX
Class/Contract C000002208   R2 MCRRX
Class/Contract C000002209   R3 MFCHX
Class/Contract C000034435   Class W Shares MFCWX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000765   MFS New Discovery Fund
Class/Contract C000002210   A MNDAX
Class/Contract C000002211   R4 MNDJX
Class/Contract C000002212   529A EANDX
Class/Contract C000002213   529B EBNDX
Class/Contract C000002214   529C ECNDX
Class/Contract C000002215   B MNDBX
Class/Contract C000002216   C MNDCX
Class/Contract C000002217   I MNDIX
Class/Contract C000002219   R1 MNDGX
Class/Contract C000002221   R2 MNDRX
Class/Contract C000002222   R3 MNDHX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000766   MFS Research International Fund
Class/Contract C000002223   A MRSAX
Class/Contract C000002224   R4 MRSJX
Class/Contract C000002225   529A EARSX
Class/Contract C000002226   529B EBRIX
Class/Contract C000002227   529C ECRIX
Class/Contract C000002228   B MRIBX
Class/Contract C000002229   C MRICX
Class/Contract C000002230   I MRSIX
Class/Contract C000002232   R1 MRSGX
Class/Contract C000002234   R2 MRSRX
Class/Contract C000002235   R3 MRSHX
Class/Contract C000034436   Class W Shares MRIWX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000768   MFS Technology Fund
Class/Contract C000002249   A MTCAX
Class/Contract C000002250   R4 MTCJX
Class/Contract C000002251   B MTCBX
Class/Contract C000002252   C MTCCX
Class/Contract C000002253   I MTCIX
Class/Contract C000002255   R1 MTCKX
Class/Contract C000002257   R2 MTERX
Class/Contract C000002258   R3 MTCHX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000769   MFS Value Fund
Class/Contract C000002259   A MEIAX
Class/Contract C000002260   R4 MEIJX
Class/Contract C000002261   529A EAVLX
Class/Contract C000002262   529B EBVLX
Class/Contract C000002263   529C ECVLX
Class/Contract C000002264   B MFEBX
Class/Contract C000002265   C MEICX
Class/Contract C000002266   I MEIIX
Class/Contract C000002268   R1 MEIGX
Class/Contract C000002270   R2 MVRRX
Class/Contract C000002271   R3 MEIHX
Class/Contract C000033014   Class W Shares MEIWX
Mailing Address 500 BOYLSTON ST 15TH FLOOR BOSTON MA 02116
Business Address 500 BOYLSTON ST 15 TH FL BOSTON MA 02116 18006372929
MFS SERIES TRUST I (Filer) CIK: 0000798244 (see all company filings)

IRS No.: 000000000 | State of Incorp.: MA | Fiscal Year End: 1130
Type: N-CSRS | Act: 40 | File No.: 811-04777 | Film No.: 11786017