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Mailing Address 111 HUNTINGTON AVENUE 21ST FLOOR BOSTON MA 02119
Business Address 111 HUNTINGTON AVENUE 21ST FLOOR BOSTON MA 02119 18006372929
MFS SERIES TRUST VIII CIK#: 0000819673 (see all company filings)

State location: MA | State of Inc.: MA | Fiscal Year End: 1031
formerly: MFS INCOME & OPPORTUNITY FUND / (filings through 1994-06-29)
formerly: MFS STRATEGIC INCOME FUND (filings through 1995-02-06)
Class/Contract: C000006707 A 
Ticker Symbol:   MFIOX
(List all Funds and Classes/Contracts for MFS SERIES TRUST VIII)

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Items 1 - 40  0000819673 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-24-067307 (40 Act)  Size: 1 MB
2024-03-26 811-05262
24782079
497  Documents Definitive materials
Acc-no: 0000912938-24-000279 (33 Act)  Size: 137 KB
2024-03-15 033-37972
24752696
497J  Documents Certification of no change in definitive materials
Acc-no: 0000912938-24-000273 (33 Act)  Size: 175 KB
2024-03-04 033-37972
24714328
497K  Documents Summary Prospectus for certain open-end management investment companies filed pursuant to Securities Act Rule 497(K)
Acc-no: 0001741773-24-000401 (33 Act)  Size: 218 KB
2024-02-27 033-37972
24682766
485BPOS  Documents   Interactive Data Post-effective amendment [Rule 485(b)]
Acc-no: 0001741773-24-000397 (33 Act)  Size: 8 MB
2024-02-27 033-37972
24682747
485BPOS  Documents   Interactive Data Post-effective amendment [Rule 485(b)]
Acc-no: 0001741773-24-000397 (40 Act)  Size: 8 MB
2024-02-27 811-05262
24682748
24F-2NT  Documents Rule 24F-2 notice
Acc-no: 0001683863-24-000113 (33 Act)  Size: 9 KB
2024-01-17 033-37972
24536966
N-CEN  Documents Annual Report for Registered Investment Companies
Acc-no: 0001752724-24-001493 (40 Act)  Size: 161 KB
2024-01-11 811-05262
24529639
497  Documents Definitive materials
Acc-no: 0000912938-23-000520 (33 Act)  Size: 137 KB
2023-12-29 033-37972
231524544
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-23-293481 (40 Act)  Size: 510 KB
2023-12-27 811-05262
231516800
N-CSR  Documents Certified Shareholder Report
Acc-no: 0001683863-23-008507 (40 Act)  Size: 2 MB
2023-12-21 811-05262
231504497
497  Documents Definitive materials
Acc-no: 0000912938-23-000510 (33 Act)  Size: 290 KB
2023-12-06 033-37972
231468546
497  Documents Definitive materials
Acc-no: 0000912938-23-000502 (33 Act)  Size: 685 KB
2023-11-28 033-37972
231442046
497  Documents Definitive materials
Acc-no: 0000912938-23-000419 (33 Act)  Size: 158 KB
2023-09-28 033-37972
231286289
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-23-217528 (40 Act)  Size: 1 MB
2023-09-26 811-05262
231281259
N-PX  Documents Annual Report of proxy voting record of management investment companies
Acc-no: 0001193125-23-223242 (40 Act)  Size: 143 KB
2023-08-29 811-05262
231218752
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-23-143684 (40 Act)  Size: 526 KB
2023-06-26 811-05262
231041701
N-CSRS  Documents Certified Shareholder Report, Semi-Annual
Acc-no: 0001683863-23-005160 (40 Act)  Size: 2 MB
2023-06-22 811-05262
231033141
497  Documents Definitive materials
Acc-no: 0000912938-23-000349 (33 Act)  Size: 65 KB
2023-05-31 033-37972
23979111
497  Documents Definitive materials
Acc-no: 0000912938-23-000351 (33 Act)  Size: 88 KB
2023-05-31 033-37972
23979130
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-23-068541 (40 Act)  Size: 1 MB
2023-03-28 811-05262
23766993
497J  Documents Certification of no change in definitive materials
Acc-no: 0000912938-23-000275 (33 Act)  Size: 114 KB
2023-03-03 033-37972
23701824
485BPOS  Documents   Interactive Data Post-effective amendment [Rule 485(b)]
Acc-no: 0001104659-23-025769 (33 Act)  Size: 7 MB
2023-02-27 033-37972
23671619
485BPOS  Documents   Interactive Data Post-effective amendment [Rule 485(b)]
Acc-no: 0001104659-23-025769 (40 Act)  Size: 7 MB
2023-02-27 811-05262
23671620
497K  Documents Summary Prospectus for certain open-end management investment companies filed pursuant to Securities Act Rule 497(K)
Acc-no: 0001104659-23-025772 (33 Act)  Size: 146 KB
2023-02-27 033-37972
23671638
24F-2NT  Documents Rule 24F-2 notice
Acc-no: 0001683863-23-000162 (33 Act)  Size: 9 KB
2023-01-18 033-37972
23533902
N-CEN  Documents Annual Report for Registered Investment Companies
Acc-no: 0001752724-23-001006 (40 Act)  Size: 166 KB
2023-01-12 811-05262
23525341
497  Documents Definitive materials
Acc-no: 0000912938-22-000499 (33 Act)  Size: 110 KB
2022-12-29 033-37972
221496712
497  Documents Definitive materials
Acc-no: 0000912938-22-000497 (33 Act)  Size: 260 KB
2022-12-29 033-37972
221496423
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-22-291233 (40 Act)  Size: 396 KB
2022-12-27 811-05262
221487459
N-CSR  Documents Certified Shareholder Report
Acc-no: 0001683863-22-007956 (40 Act)  Size: 2 MB
2022-12-22 811-05262
221482106
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-22-215260 (40 Act)  Size: 1 MB
2022-09-26 811-05262
221264000
N-PX  Documents Annual Report of proxy voting record of management investment companies
Acc-no: 0001193125-22-232520 (40 Act)  Size: 144 KB
2022-08-29 811-05262
221210249
497  Documents Definitive materials
Acc-no: 0000912938-22-000424 (33 Act)  Size: 125 KB
2022-08-26 033-37972
221199842
497  Documents Definitive materials
Acc-no: 0000912938-22-000427 (33 Act)  Size: 64 KB
2022-08-26 033-37972
221199880
497  Documents Definitive materials
Acc-no: 0000912938-22-000400 (33 Act)  Size: 415 KB
2022-07-29 033-37972
221117657
NPORT-P  Documents Monthly Portfolio Investments Report on Form N-PORT (Public)
Acc-no: 0001752724-22-146183 (40 Act)  Size: 398 KB
2022-06-24 811-05262
221038439
N-CSRS  Documents Certified Shareholder Report, Semi-Annual
Acc-no: 0001193125-22-179404 (40 Act)  Size: 2 MB
2022-06-23 811-05262
221033624
497  Documents Definitive materials
Acc-no: 0000912938-22-000384 (33 Act)  Size: 308 KB
2022-06-15 033-37972
221016751
497  Documents Definitive materials
Acc-no: 0000912938-22-000349 (33 Act)  Size: 157 KB
2022-05-17 033-37972
22932430