MFS Research International Fund

S000000766MFS SERIES TRUST ICIK 0000798244

Share classes

9 classes of this one portfolio · 0 exchange-listed

Class ID	Symbol	Status	Security in the master	Type
C000002228	MRIBX	NOT_LISTED	not exchange-listed	—
C000002229	MRICX	NOT_LISTED	not exchange-listed	—
C000002223	MRSAX	NOT_LISTED	not exchange-listed	—
C000002232	MRSGX	NOT_LISTED	not exchange-listed	—

Share classes

Report period

1 period filed. Holdings below describe the selected month only.

2026-02-28

Filing

NPORT-P · filed 2026-04-24

Report date: 2026-02-28
Net assets: $18,843,128,458.63
Total assets: $18,881,087,151.98
Total liabilities: $37,958,693.35
Assets invested: $0
Cash not reported in C or D: $14,083.09
Amendment: No
Accession: 0001410368-26-040070

By asset category

N-PORT Item C.4.a

ECEquity - common$18.77B100.0%

OTHEROther; the filer describe…$44.320.0%

DEDerivative - equity$0.000.0%

By asset category

By issuer category

N-PORT Item C.4.b

CORPCorporate$18.55B98.8%

RFRegistered fund$218.85M1.2%

OTHEROther; the filer describe…$44.320.0%

By issuer category

By investment country

as filed

JPJP$4.28B26.7%

GBGB$2.45B15.3%

FRFR$2.12B13.2%

CHCH$1.63B10.2%

NLNL$1.44B9.0%

IEIE$936.55M5.8%

DEDE$917.82M5.7%

CACA$483.64M3.0%

USUS$471.88M2.9%

ITIT$451.65M2.8%

HKHK$451.52M2.8%

AUAU$382.81M2.4%

By country

Classification look-through

Positions resolved to the master through ISIN, then rolled up through the taxonomy. 12.1% of reported value reaches a classification.

Not resolved to the master(103)$16.50B87.9%

Equity · Financials(6)$1.07B5.7%

Equity · Materials(1)$331.31M1.8%

Equity · Energy(1)$311.07M1.7%

Equity · Health Care(2)$245.88M1.3%

Equity · Communication Services(1)$118.84M0.6%

Equity · Industrials(1)$113.80M0.6%

Equity · Information Technology(1)$74.28M0.4%

Classification covers part of the master. 5,771 of 13,106 active securities are classified. Anything unclassified is shown as its own band rather than dropped, so a look-through total that falls short of 100% is telling you about coverage, not about the fund.

Percentages are of the reported value of positions above ($18.77B), not of the fund’s net assets ($18.84B). The two differ by cash, derivatives filed with no market value, and rounding.

Classification look-through

Holdings

116 positions in this filing

Issuer nameAsset categoryIssuer categoryCountry

Issuer↕	In master	CUSIP / ISIN	Asset	Balance↕	Value↕	Weight▲	Country
Haleon PLC	—	000000000 GB00BMX86B70	EC CORP	46,925,990 NS

101–116 of 116

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Balance is meaningless without its unit. N-PORT Item C.2.a says what the balance column counts: shares (NS), principal amount (PA), contracts (NC), or something the filer describes (OU). A bond position read as a share count is off by orders of magnitude. Every balance on this page carries its unit code.

Missing CUSIPs are filed as placeholders. Filers with no CUSIP conventionally write 999999999 or N/A rather than leaving the field blank — 1,187,114 of 5,347,869 positions do. Those are shown as missing here, not as identifiers.