Form 485BPOS - Post-effective amendment [Rule 485(b)]:
SEC Accession No. 0001741773-24-004826
Filing Date
2024-12-26
Accepted
2024-12-26 08:44:52
Documents
55
Effectiveness Date
2024-12-27

Document Format Files

Seq Description Document Type Size
1 c485bpos.htm   iXBRL 485BPOS 15837041
7 ex99ilegalopinin-1.htm EX-99.I LEGAL OPININ 2633
8 ex99jotheropinin-1.htm EX-99.J OTHER OPININ 16166
9 ex99jotheropinin-2.htm EX-99.J OTHER OPININ 10815
10 ex99jotheropinin-3.htm EX-99.J OTHER OPININ 2478
11 ex99jotheropinin-4.htm EX-99.J OTHER OPININ 2911
13 img_5660561730ad4f2.jpg GRAPHIC 11271
14 img_86bc2c057cc94f2.jpg GRAPHIC 21208
15 img_60d0c1ee83084f3.jpg GRAPHIC 22465
16 img_ffd465ee81564f4.jpg GRAPHIC 21359
17 img_190ae989b8344f5.jpg GRAPHIC 22432
18 img_b340190823d84f6.jpg GRAPHIC 23390
19 img_71cf704f869c4f7.jpg GRAPHIC 22845
20 img_190b8308ebff4f8.jpg GRAPHIC 17449
21 img_581c4bbe9d674f9.jpg GRAPHIC 20453
22 img_a93f299858e84f10.jpg GRAPHIC 8726
23 img_c7117b0b4c5d4f18.jpg GRAPHIC 22921
  Complete submission text file 0001741773-24-004826.txt   25857531

Data Files

Seq Description Document Type Size
2 c485bpos-20241226.xsd EX-101.SCH 53979
3 c485bpos-20241226_cal.xml EX-101.CAL 4877
4 c485bpos-20241226_def.xml EX-101.DEF 1040588
5 c485bpos-20241226_lab.xml EX-101.LAB 227817
6 c485bpos-20241226_pre.xml EX-101.PRE 1134950
59 EXTRACTED XBRL INSTANCE DOCUMENT c485bpos_htm.xml XML 847816

Series and Classes/Contracts Information:

Existing
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000762   MFS U.S. Government Cash Reserve Fund
Class/Contract C000002179   A MSRXX
Class/Contract C000002182   B MCRXX
Class/Contract C000002183   C MCCXX
Class/Contract C000002184   R1 CRVXX
Class/Contract C000002186   R2 CRMXX
Class/Contract C000002187   R3 CRJXX
Class/Contract C000002188   R4 CRKXX
Class/Contract C000206004   R6 CRRXX
Class/Contract C000206005   I CRHXX
  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
Class/Contract C000124424   R6 MRGKX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000765   MFS New Discovery Fund
Class/Contract C000002210   A MNDAX
Class/Contract C000002211   R4 MNDJX
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
Class/Contract C000075013   R6 MNDKX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000766   MFS Research International Fund
Class/Contract C000002223   A MRSAX
Class/Contract C000002224   R4 MRSJX
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   R6 MRSKX
  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
Class/Contract C000124425   R6 MTCLX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000000769   MFS Value Fund
Class/Contract C000002259   A MEIAX
Class/Contract C000002260   R4 MEIJX
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   R6 MEIKX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000042701   MFS Low Volatility Equity Fund
Class/Contract C000132013   A MLVAX
Class/Contract C000132014   B MLVBX
Class/Contract C000132015   C MLVGX
Class/Contract C000132016   I MLVHX
Class/Contract C000132017   R1 MLVMX
Class/Contract C000132018   R2 MLVOX
Class/Contract C000132019   R3 MLVPX
Class/Contract C000132020   R4 MLVRX
Class/Contract C000132021   R6 MLVTX
  Status Name Ticker Symbol
CIK 0000798244      
Series S000042702   MFS Low Volatility Global Equity Fund
Class/Contract C000132022   A MVGAX
Class/Contract C000132023   B MVGBX
Class/Contract C000132024   C MVGCX
Class/Contract C000132025   I MVGIX
Class/Contract C000132026   R1 MVGJX
Class/Contract C000132027   R2 MVGKX
Class/Contract C000132028   R3 MVGLX
Class/Contract C000132029   R4 MVGMX
Class/Contract C000132030   R6 MVGNX
Mailing Address 111 HUNTINGTON AVENUE 21ST FLOOR BOSTON MA 02199
Business Address 111 HUNTINGTON AVENUE 21ST FLOOR BOSTON MA 02199 18006372929
MFS SERIES TRUST I (Filer) CIK: 0000798244 (see all company filings)

EIN.: 000000000 | State of Incorp.: MA | Fiscal Year End: 1130
Type: 485BPOS | Act: 40 | File No.: 811-04777 | Film No.: 241576801

Mailing Address 111 HUNTINGTON AVENUE 21ST FLOOR BOSTON MA 02199
Business Address 111 HUNTINGTON AVENUE 21ST FLOOR BOSTON MA 02199 18006372929
MFS SERIES TRUST I (Filer) CIK: 0000798244 (see all company filings)

EIN.: 000000000 | State of Incorp.: MA | Fiscal Year End: 1130
Type: 485BPOS | Act: 33 | File No.: 033-07638 | Film No.: 241576800