MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Boston, MA · CIK 912938 · 13F filing filed 2026-08-03

SEC-registered investment adviser since 1982 · corporation

Assets managed$514.1bn
Staff1,244 · 327 in investment roles
Main clients (by assets)Mutual funds and ETFs 85%, Private funds 14%
Form ADV · 2026-03-31SEC adviser record

Legal entityMASSACHUSETTS FINANCIAL SERVICES COMPANY (US)

Other 13F filers in this group: MFS International Australia Pty Ltd files a notice, MFS International Singapore Pte. Ltd. files a notice

$315.2bn reported value +5.9% vs Q1 2026

1,003positions

23.1%in top 10

129 new 368 added 503 reduced 70 sold out vs Q1 2026

Options: 1 call positions ($15.2m notional), 1 put positions ($173.0k notional) – listed below, not included above.

This report includes the holdings of 9 other managers that share the investment decisions:

New York Life Investment Management LLC – files its own report too
MFS Heritage Trust CO – reports through this filing
MFS Institutional Advisors, Inc. – reports through this filing
MFS International (U.K.) Ltd. – reports through this filing
MFS International Australia Pty Ltd – reports through this filing
MFS International Singapore Pte. Ltd. – reports through this filing
MFS Investment Management CO (LUX) S.A.R.L. – reports through this filing
MFS Investment Management Canada LTD – reports through this filing

1 more

MFS Investment Management K.K. – reports through this filing

Also in the report of:

Shares in two reports are counted once in each security's totals.

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	NVIDIA CORPORATION COM NVDA	NVDA	62,506,436	$13.7bn4.33%	4.33%	Reduced -2.8m	-2,769,122 -4.2%
2	ALPHABET INC CAP STK CL A GOOGL	GOOGL	28,694,648	$10.5bn3.34%	3.34%	Added +5.3m	+5,281,416 22.6%
3	APPLE INC COM AAPL	AAPL	30,364,165	$8.9bn2.83%	2.83%	Added +47.0k	+47,023 0.2%
4	AMAZON COM INC COM AMZN	AMZN	32,066,835	$8.8bn2.81%	2.81%	Added +6.1m	+6,114,335 23.6%
5	MICROSOFT CORP COM MSFT	MSFT	20,441,967	$8.8bn2.78%	2.78%	Reduced -5.0m	-5,032,014 -19.8%
6	BROADCOM INC COM AVGO	AVGO	12,084,090	$5.5bn1.73%	1.73%	Added +3.1m	+3,103,168 34.5%
7	TAIWAN SEMICONDUCTOR MFG LTD SPONSORED ADS TSM	TSM	9,510,209	$4.7bn1.50%	1.50%	Reduced -167.6k	-167,646 -1.7%
8	KLA CORP COM NEW KLAC	KLAC	14,668,801	$4.5bn1.42%	1.42%	Reduced -1.7m	-1,747,549 -10.7%
9	JPMORGAN CHASE & CO COM JPM	JPM	12,270,986	$4.0bn1.28%	1.28%	Reduced -2.4m	-2,391,113 -16.3%
10	LINDE PLC SHS LIN	LIN	4,922,872	$3.3bn1.03%	1.03%	Added +165.2k	+165,186 3.5%
11	UBS GROUP AG SHS UBS	UBS	62,927,553	$3.2bn1.01%	1.01%	Reduced -2.6m	-2,614,508 -4.0%
12	THE CIGNA GROUP COM CI	CI	10,443,691	$2.9bn0.92%	0.92%	Reduced -1.2m	-1,151,491 -9.9%
13	MASTERCARD INCORPORATED CL A MA	MA	5,375,808	$2.8bn0.90%	0.90%	Reduced -145.9k	-145,888 -2.6%
14	JOHNSON & JOHNSON COM JNJ	JNJ	10,539,098	$2.7bn0.86%	0.86%	Reduced -2.9m	-2,895,204 -21.6%
15	MEDTRONIC PLC SHS MDT	MDT	19,872,600	$2.6bn0.83%	0.83%	Reduced -1.6m	-1,564,999 -7.3%
16	AON PLC SHS CL A AON	AON	7,615,397	$2.6bn0.82%	0.82%	Reduced -742.7k	-742,700 -8.9%
17	VISA INC COM CL A V	V	3,743,063	$2.5bn0.81%	0.81%	Reduced -422.4k	-422,410 -10.1%
18	WATERS CORP COM WAT	WAT	4,625,035	$2.5bn0.80%	0.80%	Reduced -5.1k	-5,083 -0.1%
19	SEAGATE TECHNOLOGY HLDNGS PL ORD SHS STX	STX	2,560,276	$2.5bn0.80%	0.80%	Added +24.2k	+24,154 0.9%
20	BECTON DICKINSON & CO COM BDX	BDX	8,650,967	$2.5bn0.79%	0.79%	Reduced -450.5k	-450,487 -5.0%
21	FRANCO NEV CORP COM FNV	FNV	11,045,957	$2.4bn0.75%	0.75%	Reduced -47.2k	-47,191 -0.4%
22	THERMO FISHER SCIENTIFIC INC COM TMO	TMO	2,965,714	$2.3bn0.72%	0.72%	Reduced -47.4k	-47,395 -1.6%
23	WILLIS TOWERS WATSON PLC LTD SHS WTW	WTW	5,491,383	$2.3bn0.72%	0.72%	Reduced -376.1k	-376,150 -6.4%
24	RTX CORPORATION COM RTX	RTX	11,737,526	$2.2bn0.71%	0.71%	Reduced -2.4m	-2,410,337 -17.0%
25	EXXON MOBIL CORP COM XOM	XOM	15,993,858	$2.2bn0.69%	0.69%	Reduced -1.9m	-1,928,299 -10.8%
26	ANALOG DEVICES INC COM ADI	ADI	5,399,929	$2.2bn0.68%	0.68%	Reduced -816.7k	-816,709 -13.1%
27	SCHWAB CHARLES CORP COM SCHW	SCHW	13,356,306	$2.1bn0.68%	0.68%	Reduced -1.2m	-1,165,581 -8.0%
28	EATON CORP PLC SHS ETN	ETN	4,880,412	$2.1bn0.67%	0.67%	Added +192.0k	+192,048 4.1%
29	META PLATFORMS INC CL A META	META	3,600,708	$2.1bn0.66%	0.66%	Reduced -806.5k	-806,527 -18.3%
30	CHUBB LIMITED COM CB	CB	5,887,366	$2.0bn0.64%	0.64%	Reduced -627.6k	-627,618 -9.6%
31	AMPHENOL CORP CL A APH	APH	10,522,112	$1.9bn0.61%	0.61%	Reduced -3.4m	-3,442,515 -24.6%
32	AGNICO EAGLE MINES LTD COM AEM	AEM	11,922,732	$1.9bn0.61%	0.61%	Added +55.7k	+55,731 0.5%
33	MORGAN STANLEY COM NEW MS	MS	9,212,711	$1.9bn0.61%	0.61%	Reduced -2.5m	-2,537,145 -21.6%
34	CATERPILLAR INC COM CAT	CAT	1,748,257	$1.9bn0.60%	0.60%	Added +164.7k	+164,692 10.4%
35	CONOCOPHILLIPS COM COP	COP	17,973,897	$1.9bn0.60%	0.60%	Reduced -2.3m	-2,293,264 -11.3%
36	MCKESSON CORP COM MCK	MCK	2,446,386	$1.9bn0.59%	0.59%	Reduced -453.8k	-453,847 -15.7%
37	GE VERNOVA INC COM GEV	GEV	1,551,035	$1.8bn0.59%	0.59%	Reduced -78.0k	-78,049 -4.8%
38	NASDAQ INC COM NDAQ	NDAQ	23,259,539	$1.8bn0.58%	0.58%	Reduced -5.8m	-5,800,900 -20.0%
39	NXP SEMICONDUCTORS N V COM NXPI	NXPI	6,458,702	$1.8bn0.58%	0.58%	Reduced -1.1m	-1,116,263 -14.7%
40	UNION PAC CORP COM UNP	UNP	6,272,629	$1.7bn0.55%	0.55%	Reduced -757.3k	-757,303 -10.8%
41	ARISTA NETWORKS INC COM SHS ANET	ANET	9,725,196	$1.7bn0.54%	0.54%	Added +2.5m	+2,497,275 34.5%
42	PG&E CORP COM PCG	PCG	101,483,416	$1.7bn0.54%	0.54%	Reduced -7.9m	-7,910,420 -7.2%
43	PROGRESSIVE CORP COM PGR	PGR	7,663,770	$1.7bn0.53%	0.53%	Reduced -4.4m	-4,435,885 -36.7%
44	HUMANA INC COM HUM	HUM	3,578,245	$1.7bn0.53%	0.53%	Reduced -904.1k	-904,125 -20.2%
45	DUKE ENERGY CORP NEW COM NEW DUK	DUK	12,742,489	$1.6bn0.52%	0.52%	Reduced -1.6m	-1,648,807 -11.5%
46	RYANAIR HOLDINGS PLC SPONSORED ADR RYAAY	RYAAY	24,062,089	$1.6bn0.50%	0.50%	Reduced -58.2k	-58,205 -0.2%
47	MICRON TECHNOLOGY INC COM MU	MU	1,356,814	$1.6bn0.50%	0.50%	Added +1.3m	+1,295,401 2109.3%
48	PHILIP MORRIS INTL INC COM PM	PM	8,573,094	$1.6bn0.50%	0.50%	Reduced -58.7k	-58,678 -0.7%
49	PROLOGIS INC. COM PLD	PLD	11,217,207	$1.5bn0.49%	0.49%	Reduced -2.8m	-2,846,125 -20.2%
50	AMERICAN EXPRESS CO COM AXP	AXP	4,467,904	$1.5bn0.49%	0.49%	Reduced -599.8k	-599,751 -11.8%
51	CITIGROUP INC COM NEW C	C	10,945,923	$1.5bn0.49%	0.49%	Reduced -2.4m	-2,408,779 -18.0%
52	TORONTO DOMINION BK ONT COM NEW TD	TD	11,159,532	$1.5bn0.48%	0.48%	Reduced -3.1m	-3,059,561 -21.5%
53	BOSTON SCIENTIFIC CORP COM BSX	BSX	24,859,191	$1.5bn0.48%	0.48%	Added +13.9m	+13,862,619 126.1%
54	PNC FINL SVCS GROUP INC COM PNC	PNC	6,019,533	$1.5bn0.47%	0.47%	Reduced -1.5m	-1,508,762 -20.0%
55	CRH PLC ORD CRH	CRH	13,557,749	$1.5bn0.47%	0.47%	Added +50.0k	+49,952 0.4%
56	TRANSUNION COM TRU	TRU	10,667,983	$1.5bn0.47%	0.47%	Reduced -2.5m	-2,478,942 -18.9%
57	GENERAL DYNAMICS CORP COM GD	GD	4,140,985	$1.5bn0.47%	0.47%	Reduced -1.6m	-1,561,644 -27.4%
58	BOEING CO COM BA	BA	6,890,252	$1.5bn0.47%	0.47%	Reduced -1.8m	-1,843,167 -21.1%
59	HONEYWELL INTL INC COM HON	HON	5,068,155	$1.4bn0.45%	0.45%	New
60	TRAVELERS COMPANIES INC COM TRV	TRV	4,241,289	$1.4bn0.44%	0.44%	Reduced -662.4k	-662,376 -13.5%
61	RB GLOBAL INC COM RBA	RBA	11,723,635	$1.4bn0.44%	0.44%	Added +483.0k	+482,983 4.3%
62	TEXAS INSTRS INC COM TXN	TXN	4,646,473	$1.4bn0.44%	0.44%	Reduced -673.8k	-673,821 -12.7%
63	PFIZER INC COM PFE	PFE	56,551,011	$1.4bn0.44%	0.44%	Reduced -360.8k	-360,819 -0.6%
64	MARRIOTT INTL INC NEW CL A MAR	MAR	3,713,960	$1.4bn0.44%	0.44%	Reduced -552.5k	-552,533 -12.9%
65	HONEYWELL AEROSPACE INC COM HONA	HONA	5,005,241	$1.4bn0.44%	0.44%	New
66	AGILENT TECHNOLOGIES INC COM A	A	10,010,867	$1.4bn0.43%	0.43%	Reduced -2.6m	-2,613,223 -20.7%
67	DOMINION ENERGY INC COM D	D	20,030,451	$1.4bn0.43%	0.43%	Reduced -6.6m	-6,590,991 -24.8%
68	HOWMET AEROSPACE INC COM HWM	HWM	4,971,798	$1.4bn0.43%	0.43%	Reduced -2.7m	-2,652,902 -34.8%
69	ADVANCED MICRO DEVICES INC COM AMD	AMD	2,321,366	$1.4bn0.43%	0.43%	Added +1.7m	+1,742,587 301.1%
70	SOUTHERN CO COM SO	SO	13,831,354	$1.3bn0.42%	0.42%	Reduced -1.8m	-1,764,446 -11.3%
71	XCEL ENERGY INC COM XEL	XEL	16,269,553	$1.3bn0.42%	0.42%	Reduced -1.8m	-1,809,087 -10.0%
72	ABBOTT LABS COM ABT	ABT	13,359,956	$1.2bn0.39%	0.39%	Reduced -2.1m	-2,139,914 -13.8%
73	SPACE EXPLORATION TECHN CORP CLASS A COM STK SPCX	SPCX	7,062,255	$1.2bn0.39%	0.39%	New
74	CHECK POINT SOFTWARE TECH LT ORD CHKP	CHKP	8,569,897	$1.2bn0.37%	0.37%	Added +627.6k	+627,617 7.9%
75	LOWES COS INC COM LOW	LOW	5,224,770	$1.1bn0.36%	0.36%	Reduced -797.6k	-797,594 -13.2%
76	HILTON WORLDWIDE HLDGS INC COM HLT	HLT	3,356,582	$1.1bn0.36%	0.36%	Reduced -94.3k	-94,274 -2.7%
77	ABBVIE INC COM ABBV	ABBV	4,388,338	$1.1bn0.35%	0.35%	Reduced -1.2m	-1,221,992 -21.8%
78	APPLIED MATLS INC COM AMAT	AMAT	1,522,200	$1.1bn0.35%	0.35%	Added +340.4k	+340,362 28.8%
79	CADENCE DESIGN SYSTEM INC COM CDNS	CDNS	2,921,983	$1.1bn0.35%	0.35%	Reduced -52.5k	-52,537 -1.8%
80	NEXTERA ENERGY INC COM NEE	NEE	12,519,204	$1.1bn0.35%	0.35%	Reduced -672.9k	-672,867 -5.1%
81	WELLS FARGO CO NEW COM WFC	WFC	13,262,862	$1.1bn0.35%	0.35%	Reduced -1.8m	-1,842,320 -12.2%
82	MARSH & MCLENNAN COS INC COM MRSH	MRSH	6,507,415	$1.1bn0.35%	0.35%	Reduced -1.7m	-1,692,894 -20.6%
83	VIKING HOLDINGS LTD ORD SHS VIK	VIK	9,691,495	$1.0bn0.32%	0.32%	Added +1.8m	+1,795,810 22.7%
84	PACCAR INC COM PCAR	PCAR	8,486,853	$1.0bn0.32%	0.32%	Reduced -1.8m	-1,829,200 -17.7%
85	CHEVRON CORP NEW COM CVX	CVX	6,072,686	$1.0bn0.32%	0.32%	Reduced -1.0m	-1,036,733 -14.6%
86	NORTHERN TR CORP COM NTRS	NTRS	5,702,539	$1.0bn0.32%	0.32%	Reduced -103.2k	-103,177 -1.8%
87	SPOTIFY TECHNOLOGY S A SHS SPOT	SPOT	2,133,009	$990.4m0.31%	0.31%	Added +73.0k	+73,031 3.5%
88	KKR & CO INC COM KKR	KKR	10,616,489	$977.6m0.31%	0.31%	Reduced -3.7m	-3,733,544 -26.0%
89	COHERENT CORP COM COHR	COHR	2,322,386	$920.6m0.29%	0.29%	Added +509.1k	+509,130 28.1%
90	BLACKROCK INC COM BLK	BLK	954,863	$919.1m0.29%	0.29%	Reduced -140.3k	-140,294 -12.8%
91	ARAMARK COM ARMK	ARMK	15,576,375	$903.1m0.29%	0.29%	Reduced -2.0m	-1,980,953 -11.3%
92	KIMBERLY-CLARK CORP COM KMB	KMB	8,156,490	$894.9m0.28%	0.28%	Added +511.7k	+511,679 6.7%
93	PEPSICO INC COM PEP	PEP	6,463,867	$887.4m0.28%	0.28%	Reduced -812.9k	-812,872 -11.2%
94	BANK AMERICA CORP COM BAC	BAC	15,187,077	$884.4m0.28%	0.28%	Added +5.4m	+5,353,770 54.5%
95	GILEAD SCIENCES INC COM GILD	GILD	6,651,833	$876.7m0.28%	0.28%	Added +370.2k	+370,224 5.9%
96	KENVUE INC COM KVUE	KVUE	44,715,586	$861.9m0.27%	0.27%	Reduced -5.0m	-5,028,398 -10.1%
97	STERIS PLC SHS USD STE	STE	3,801,077	$850.4m0.27%	0.27%	Reduced -209.3k	-209,272 -5.2%
98	HUBBELL INC COM HUBB	HUBB	1,546,097	$833.4m0.26%	0.26%	Added +8.5k	+8,500 0.6%
99	CREDICORP LTD COM BAP	BAP	2,126,364	$832.4m0.26%	0.26%	Reduced -660.9k	-660,853 -23.7%
100	CANADIAN PACIFIC KANSAS CITY COM CP	CP	7,959,047	$820.5m0.26%	0.26%	Added +3.1m	+3,120,538 64.5%

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
HONEYWELL INTL INC		4,353,524	$2.5bn4.4m shares
APTIV PLC APTV-W	APTV-W	7,985,744	$475.7m8.0m shares
ASCENDIS PHARMA A/S		1,860,669	$425.6m1.9m shares
MASIMO CORP MASI	MASI	2,342,790	$416.7m2.3m shares
CARNIVAL CORP		5,916,649	$153.1m5.9m shares
DUPONT DE NEMOURS INC DWDP	DWDP	821,982	$112.9m822.0k shares
REVVITY INC RVTY	RVTY	1,065,520	$93.4m1.1m shares
HUNTINGTON INGALLS INDS INC HII	HII	241,938	$91.9m241.9k shares
GE HEALTHCARE TECHNOLOGIES I GEHC	GEHC	1,260,998	$89.8m1.3m shares
GRAPHIC PACKAGING HLDG CO GPK	GPK	7,459,614	$74.1m7.5m shares
V F CORP VFC	VFC	4,103,674	$69.7m4.1m shares
ORACLE CORP ORCL	ORCL	438,254	$64.9m438.3k shares
PETROLEO BRASILEIRO SA PETRO PBR	PBR	3,077,153	$64.1m3.1m shares
INTERNATIONAL BUSINESS MACHS IBM	IBM	260,190	$63.5m260.2k shares
SUNSTONE HOTEL INVS INC NEW SHO	SHO	4,733,474	$45.9m4.7m shares
THOMSON REUTERS CORP		344,927	$42.3m344.9k shares
ISHARES TR USHY	USHY	1,030,800	$38.3m1.0m shares
MCCORMICK & CO INC MKC	MKC	666,345	$36.4m666.3k shares
NEW JERSEY RES CORP NJR	NJR	655,430	$36.0m655.4k shares
SUNBELT RENTALS HOLDINGS INC SUNB	SUNB	560,208	$31.7m560.2k shares
DOUGLAS EMMETT INC DEI	DEI	2,791,942	$28.2m2.8m shares
TAYLOR MORRISON HOME CORP TMHC	TMHC	440,817	$25.7m440.8k shares
OR ROYALTIES INC. OR	OR	660,101	$25.1m660.1k shares
BEL FUSE INC BELFB	BELFB	123,498	$24.5m123.5k shares
CHEMOURS CO CC	CC	947,322	$20.9m947.3k shares

Options (notional value)

Underlying	Ticker	Type	Shares controlled	Notional	Change
WELLTOWER INC WELL · Call	WELL	Call	1,087,800	$15.2m1.1m shares	Reduced
ISHARES TR Put		Put	186,000	$173.0k186.0k shares	Reduced

Stakes above 5%

Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.

Company	Ticker	Stake	Change	Schedule	Last filed
QIAGEN NV QGEN · 13G · filed 2025-05-14	QGEN	11.6%		13G	2025-05-14
CHECK POINT SOFTWARE TECH LT CHKP · 13G · filed 2026-01-28	CHKP	7.4%≈ $1.0bn	+1.7 pts	13G	2026-01-28
BLACKSTONE DIGITAL INFRASTRU BXDC · 13G · filed 2026-08-12	BXDC	6.8%≈ $147.5m	new	13G	2026-08-12
ARAMARK ARMK · 13G · filed 2025-05-14	ARMK	6.7%≈ $1.0bn	+1.6 pts	13G	2025-05-14
HYATT HOTELS CORP H · 13G · filed 2025-11-04	H	6.5%≈ $536.1m	+1.2 pts	13G	2025-11-04
BRUNSWICK CORP BC · 13G · filed 2026-08-12	BC	6.4%≈ $348.5m	+1.2 pts	13G	2026-08-12
WILLIS TOWERS WATSON PLC LTD WTW · 13G · filed 2025-02-13	WTW	6.4%≈ $1.7bn		13G	2025-02-13
QIAGEN NV QGEN · 13G · filed 2026-06-05	QGEN	6.0%≈ $486.7m		13G	2026-06-05
JAMES HARDIE INDS PLC JHX · 13G · filed 2026-05-14	JHX	5.9%≈ $898.9m	new	13G	2026-05-14
HIGHWOODS PPTYS INC HIW · 13G · filed 2025-05-14	HIW	5.7%≈ $184.5m	new	13G	2025-05-14
TRANSUNION TRU · 13G · filed 2026-08-12	TRU	5.6%≈ $769.6m	-1.2 pts	13G	2026-08-12