GRANDFIELD & DODD, LLC

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CIK 1308016

13F portfolio (2026-Q1)

$1.8B

Positions

209

Implied 1Y CAGR

modeled · as filed

Long positions in SEC Section 13(f) securities (US-listed stocks, ADRs and ETFs), largest first · Δ vs 2025-Q4. A lagged quarterly snapshot (filed ≤45 days after quarter-end); excludes shorts, options, cash, and shares listed only on non-US exchanges — foreign companies held via a US listing or ADR (e.g. Alibaba, TSMC) ARE included.

Implied return what this book implies · modeled, not advice methodology →

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As filed = each book applied at its quarter-end (what the reported book did) · As copyable = applied at its statutory 45-day filing deadline (what a 13F follower could have earned).

Computing…

Hypothetical modeled performance constructed with hindsight — not actual results, and not indicative of future results. See the Disclaimer.

Exposures · what this manager owns, by sector & size (2026-Q1)

Holdings

209

Top 5

21.9%

Top 10

36.7%

Effective N

46.0

HHI

0.022

This quarter

12 new · 0 exit →

By sector

Information Technology31.9%

Health Care14.5%

Industrials13.8%

Materials13.6%

Financials8.0%

Energy5.0%

Communication Services3.8%

Consumer Staples3.6%

Other5.9%

By market cap

Large ($10–200B)52.7%

Mega (>$200B)36.3%

Unknown8.3%

Mid ($2–10B)2.6%

Small ($300M–2B)0.0%

Micro (<$300M)0.0%

By region

North America91.9%

Europe5.8%

Other2.2%

By industry group GICS — finer than sector

Industry group	Weight	Names
Chemicals	12.76%	13
Semiconductors & Semiconductor Equipment	9.90%	8
Pharmaceuticals & Biotechnology	9.66%	25
Software	8.39%	6
Software & IT Services	7.38%	7
Machinery	6.41%	8
Aerospace & Defense	5.14%	5
Unclassified	4.99%	36
Oil, Gas & Consumable Fuels	4.96%	12
Technology Hardware & Equipment	4.48%	9
Electrical Equipment & Components	4.25%	3
Health Care Equipment & Supplies	3.78%	8
Insurance	2.88%	3
Food Products	2.19%	4
Professional Services	2.01%	1
Specialty Retail	1.88%	11
Commercial Services & Supplies	1.33%	5
Beverages	1.28%	3
Entertainment	1.22%	1
Life Sciences Tools & Services	1.09%	3
Banks	1.05%	6
Equity Real Estate Investment Trusts (REITs)	0.91%	3
Metals & Mining	0.57%	3
Hotels, Restaurants & Leisure	0.35%	2
Household Durables	0.34%	1
Construction Materials	0.20%	1
Utilities	0.13%	5
Tobacco	0.09%	2
Capital Markets	0.06%	3
Road & Rail	0.06%	1
Automobiles & Components	0.05%	1
Construction & Engineering	0.05%	2
Media & Entertainment	0.04%	2
Airlines	0.03%	1
Paper & Forest Products	0.03%	1
Diversified Telecommunication Services	0.01%	1
Transportation Infrastructure	0.01%	1
Communications Equipment	0.01%	1
Agricultural Products	0.01%	1

Top holdings

#	Ticker	Name	Sector	Weight
1	AMAT	APPLIED MATERIALS INC /DE	Information Technology	5.18%
2	MSFT	MICROSOFT CORP	Information Technology	4.70%
3	ADI	ANALOG DEVICES INC	Information Technology	4.46%
4	GE	GENERAL ELECTRIC CO	Information Technology	3.89%
5	RTX	RTX Corp	Industrials	3.67%
6	JCI	Johnson Controls International plc	Industrials	3.56%
7	LIN	LINDE PLC	Materials	3.02%
8	BRK.B	BERKSHIRE HATHAWAY INC	Financials	2.74%
9	CB	Chubb Ltd	Financials	2.72%
10	CACI	CACI INTERNATIONAL INC /DE/	Information Technology	2.72%

174/209 names classified · sector 97.8% of weight · industry 95.0% · mkt cap 91.7%; unclassified names shown, never dropped.

Sector allocation over time · how the GICS mix & top names shifted quarter by quarter

top 5/sector, rest → “Other” · 52 quarters

Information TechnologyMSFT, ADI, ADSK, AMAT, GE · other

Health CareMRK, SYK, MDT, AMGN, REGN · other

IndustrialsPAYX, ITW, JCI, FDX, RTX · other

MaterialsAPD, LIN, PG, ALB, HXL · other

FinancialsBRK.B, PYPL, CB, USB, MTB · other

Consumer StaplesHRL, DEO, MDLZ, PEP, LW · other

EnergyXOM, CVX, DVN, COP, SHEL · other

Communication ServicesWLY, DIS, VOD, GOOGL, WPP · other

Consumer DiscretionaryAZO, COST, SBUX, SHW, AOS · other

Real EstateWY, AMT, EQIX, ESRT, CCI

UtilitiesD, WMB, NEE, ED, DUK · other

UnclassifiedROYAL DUTCH SHELL PLC, ROCKWELL COLLINS INC, SPECTRA ENERGY CORP, PRAXAIR INC, VODAFONE GP PLC · other

Sector is classified on each name's CURRENT fundamentals, not point-in-time — apparent sector drift can reflect the market re-rating a holding, not a manager trade. 13F is a lagged quarterly snapshot of long positions in US-listed securities only — foreign companies held via a US listing or ADR ARE included, but shares listed only on non-US exchanges (plus shorts, options and cash) are not. Latest quarter: 97.8% of the book is sector-classified (unclassified names shown, never dropped).

Style box · size × value-growth placement of the reported book (2026-Q1), classified on current fundamentals (not point-in-time) — load it into PORT to overlay your own portfolio

holdings, colored by sector (155 classified)GRANDFIELD & DODD, LLC centroid (Mid Core)

Information TechnologyIndustrialsMaterialsHealth CareFinancialsCommunication ServicesEnergyConsumer DiscretionaryConsumer StaplesReal EstateUtilities

Style box summary for GRANDFIELD & DODD, LLC: centroid Mid Core. Heaviest cells: Large Core 23.9%, Large Growth 21.7%, Mid Core 13.9%.

Classified: 88.7% of book weight (155/209 names) · unclassified 11.3%: BRK.B, NVS, SHEL, UL, SNY, DEO, BRK.A, IONS, SPY, VEU +44 more. Size: cap 70/20/10 bands; style: value/growth composite on our own metrics — not Morningstar's model.

Contribution holdings-based, any period

No contribution data for this period.

Holdings· 209 positions (2026-Q1) · largest first · Δ vs 2025-Q4

#	Security	Shares	Value	Weight	Δ QoQ
1	AMATAPPLIED MATLS INC	268,345	$92M	5.2%	HOLD
2	MSFTMICROSOFT CORP	224,809	$83M	4.7%	HOLD
3	ADIANALOG DEVICES INC	248,177	$79M	4.5%	HOLD
4	GEGE AEROSPACE	242,587	$69M	3.9%	TRIM −2%
5	RTXRTX CORPORATION	337,142	$65M	3.7%	HOLD
6	JCIJOHNSON CONTROLS INTERNATION	481,569	$63M	3.6%	TRIM −6%
7	LINLINDE PLC	108,026	$54M	3.0%	HOLD
8	BRK.BBERKSHIRE HATHAWAY INC DEL	101,139	$48M	2.7%	HOLD
9	CBCHUBB LIMITED	147,754	$48M	2.7%	HOLD
10	CACICACI INTL INC	88,498	$48M	2.7%	HOLD
11	ALBALBEMARLE CORP	238,117	$43M	2.4%	HOLD
12	ITWILLINOIS TOOL WKS INC	163,248	$42M	2.4%	HOLD
13	GOOGLALPHABET INC	124,683	$36M	2.0%	HOLD
14	PAYXPAYCHEX INC	386,178	$36M	2.0%	ADD 5%
15	ADSKAUTODESK INC	146,122	$35M	2.0%	ADD 4%
16	APDAIR PRODS & CHEMS INC	111,061	$32M	1.8%	HOLD
17	SYKSTRYKER CORPORATION	96,942	$32M	1.8%	HOLD
18	REGNREGENERON PHARMACEUTICALS	36,415	$28M	1.6%	HOLD
19	SNPSSYNOPSYS INC	68,365	$27M	1.5%	ADD 4%
20	VRSKVERISK ANALYTICS INC	140,558	$27M	1.5%	HOLD
21	HXLHEXCEL CORP NEW	326,543	$26M	1.5%	HOLD
22	JNJJOHNSON & JOHNSON	107,398	$26M	1.5%	HOLD
23	TRMBTRIMBLE INC	389,493	$25M	1.4%	HOLD
24	AAPLAPPLE INC	95,697	$24M	1.4%	HOLD
25	GEHCGE HEALTHCARE TECHNOLOGIES I	337,024	$24M	1.4%	HOLD
26	NVSNOVARTIS AG	156,906	$24M	1.4%	HOLD
27	TDYTELEDYNE TECHNOLOGIES INC	39,546	$24M	1.4%	HOLD
28	CVXCHEVRON CORP NEW	115,506	$24M	1.3%	HOLD
29	GILDGILEAD SCIENCES INC	163,600	$23M	1.3%	TRIM −5%
30	SHELSHELL PLC	244,719	$23M	1.3%	HOLD
31	HRLHORMEL FOODS CORP	995,098	$23M	1.3%	ADD 3%
32	DISDISNEY WALT CO	224,475	$22M	1.2%	HOLD
33	MRKMERCK & CO INC	175,775	$21M	1.2%	ADD 5%
34	ULUNILEVER PLC	340,169	$19M	1.1%	HOLD
35	SNYSANOFI SA	387,230	$19M	1.1%	HOLD
36	XOMEXXON MOBIL CORP	105,125	$18M	1.0%	HOLD
37	PYPLPAYPAL HLDGS INC	385,899	$17M	1.0%	HOLD
38	PGPROCTER AND GAMBLE CO	118,874	$17M	1.0%	HOLD
39	DEODIAGEO PLC	226,232	$17M	1.0%	TRIM −9%
40	MTDMETTLER TOLEDO INTERNATIONAL	13,257	$17M	0.9%	HOLD
41	PPGPPG INDS INC	149,892	$16M	0.9%	ADD 3%
42	AZOAUTOZONE INC	4,662	$16M	0.9%	HOLD
43	ROKROCKWELL AUTOMATION INC	43,686	$16M	0.9%	TRIM −3%
44	WYWEYERHAEUSER CO	635,372	$16M	0.9%	HOLD
45	DVNDEVON ENERGY CORP NEW	304,957	$15M	0.9%	ADD 2%
46	BRK.ABERKSHIRE HATHAWAY INC DEL	15	$11M	0.6%	HOLD
47	LWLAMB WESTON HLDGS INC	252,083	$11M	0.6%	ADD 18%
48	CTSHCOGNIZANT TECHNOLOGY SOLUTIO	171,459	$11M	0.6%	HOLD
49	VRTXVERTEX PHARMACEUTICALS INC	21,704	$10M	0.5%	ADD 2%
50	TMOTHERMO FISHER SCIENTIFIC INC	19,451	$10M	0.5%	HOLD
51	GLWCORNING INC	65,964	$9M	0.5%	TRIM −5%
52	ECLECOLAB INC	31,384	$8M	0.5%	HOLD
53	GOOGALPHABET INC	27,518	$8M	0.4%	TRIM −5%
54	MDTMEDTRONIC PLC	76,460	$7M	0.4%	HOLD
55	JPMJPMORGAN CHASE & CO	20,744	$6M	0.3%	TRIM −5%
56	AOSSMITH A O CORP	90,106	$6M	0.3%	ADD 238%
57	MDLZMONDELEZ INTL INC	91,178	$5M	0.3%	ADD 3%
58	SBUXSTARBUCKS CORP	57,907	$5M	0.3%	HOLD
59	NKENIKE INC	96,767	$5M	0.3%	ADD 9%
60	COPCONOCOPHILLIPS	38,659	$5M	0.3%	HOLD
61	DOVDOVER CORP	23,107	$5M	0.3%	HOLD
62	COSTCOSTCO WHSL CORP NEW	4,778	$5M	0.3%	HOLD
63	GEVGE VERNOVA INC	5,153	$4M	0.3%	TRIM −15%
64	MAMASTERCARD INCORPORATED	8,980	$4M	0.3%	HOLD
65	AXPAMERICAN EXPRESS CO	13,386	$4M	0.2%	HOLD
66	USBUS BANCORP	75,792	$4M	0.2%	HOLD
67	MTBM & T BK CORP	18,566	$4M	0.2%	TRIM −2%
68	TJXTJX COS INC NEW	23,643	$4M	0.2%	TRIM −6%
69	VMCVULCAN MATLS CO	13,280	$4M	0.2%	ADD 6%
70	KOCOCA COLA CO	44,030	$3M	0.2%	HOLD
71	IONSIONIS PHARMACEUTICALS INC	37,326	$3M	0.2%	HOLD
72	AMGNAMGEN INC	7,691	$3M	0.2%	TRIM −6%
73	ALLALLSTATE CORP	13,023	$3M	0.2%	HOLD
74	FASTFASTENAL CO	52,228	$2M	0.1%	HOLD
75	PEPPEPSICO INC	15,420	$2M	0.1%	TRIM −3%
76	DHRDANAHER CORP DEL	12,620	$2M	0.1%	HOLD
77	AMZNAMAZON COM INC	11,457	$2M	0.1%	HOLD
78	SPYSTATE STR SPDR S&P 500 ETF T	3,663	$2M	0.1%	TRIM −4%
79	VEUVANGUARD INTL EQUITY INDEX F	31,282	$2M	0.1%	HOLD
80	NTRNUTRIEN LTD	30,960	$2M	0.1%	HOLD
81	NBIXNEUROCRINE BIOSCIENCES INC	16,462	$2M	0.1%	HOLD
82	IVVISHARES TR	3,144	$2M	0.1%	TRIM −4%
83	EMREMERSON ELEC CO	15,095	$2M	0.1%	HOLD
84	INCYINCYTE CORP	20,885	$2M	0.1%	HOLD
85	VOOVANGUARD INDEX FDS	3,211	$2M	0.1%	TRIM −6%
86	LLYELI LILLY & CO	2,035	$2M	0.1%	HOLD
87	ADBEADOBE INC	7,358	$2M	0.1%	HOLD
88	CTRACOTERRA ENERGY INC	50,104	$2M	0.1%	HOLD
89	CLCOLGATE PALMOLIVE CO	20,064	$2M	0.1%	HOLD
90	NVDANVIDIA CORPORATION	9,770	$2M	0.1%	HOLD
91	ISRGINTUITIVE SURGICAL INC	3,696	$2M	0.1%	HOLD
92	VVVANGUARD INDEX FDS	5,630	$2M	0.1%	HOLD
93	ZBHZIMMER BIOMET HOLDINGS INC	18,564	$2M	0.1%	TRIM −16%
94	VHTVANGUARD WORLD FD	6,090	$2M	0.1%	HOLD
95	IWBISHARES TR	4,523	$2M	0.1%	HOLD
96	HONHONEYWELL INTL INC	6,928	$2M	0.1%	TRIM −13%
97	HUBBHUBBELL INC	3,095	$2M	0.1%	HOLD
98	ABTABBOTT LABS	14,782	$2M	0.1%	ADD 5%
99	HDHOME DEPOT INC	4,323	$1M	0.1%	HOLD
100	PFEPFIZER INC	49,046	$1M	0.1%	TRIM −22%
101	ABBVABBVIE INC	6,153	$1M	0.1%	ADD 10%
102	ORCLORACLE CORP	8,618	$1M	0.1%	TRIM −21%
103	ADPAUTOMATIC DATA PROCESSING IN	5,704	$1M	0.1%	TRIM −3%
104	PMPHILIP MORRIS INTL INC	6,865	$1M	0.1%	HOLD
105	EXELEXELIXIS INC	26,439	$1M	0.1%	TRIM −2%
106	RSPINVESCO EXCHANGE TRADED FD T	5,691	$1M	0.1%	HOLD
107	MCDMCDONALDS CORP	3,417	$1M	0.1%	HOLD
108	ALNYALNYLAM PHARMACEUTICALS INC	3,081	$1M	0.1%	HOLD
109	VVISA INC	3,350	$1M	0.1%	HOLD
110	BMRNBIOMARIN PHARMACEUTICAL INC	17,861	$1M	0.1%	HOLD
111	ETNEATON CORP PLC	2,806	$1M	0.1%	HOLD
112	GMABGENMAB A/S	37,163	$997,083	0.1%	TRIM −2%
113	UNPUNION PAC CORP	4,103	$995,470	0.1%	TRIM −3%
114	GLDSPDR GOLD TR	2,254	$969,874	0.1%	HOLD
115	TSLATESLA INC	2,604	$968,037	0.1%	HOLD
116	MICCMAGNUM ICE CREAM CO NV	64,630	$966,219	0.1%	NEW
117	IVWISHARES TR	8,433	$953,857	0.1%	HOLD
118	WMTWALMART INC	7,244	$900,284	0.1%	ADD 30%
119	DEDEERE & CO	1,439	$810,589	0.0%	NEW
120	VPLVANGUARD INTL EQUITY INDEX F	8,255	$806,761	0.0%	HOLD
121	FCXFREEPORT MCMORAN INC	13,519	$794,647	0.0%	ADD 2%
122	VOVANGUARD INDEX FDS	2,686	$771,653	0.0%	HOLD
123	CSCOCISCO SYS INC	9,742	$755,882	0.0%	TRIM −2%
124	VEAVANGUARD TAX-MANAGED FDS	11,442	$733,263	0.0%	HOLD
125	FULFULLER H B CO	11,824	$729,304	0.0%	HOLD
126	BPBP PLC	15,431	$725,257	0.0%	ADD 22%
127	VWOVANGUARD INTL EQUITY INDEX F	13,402	$724,378	0.0%	HOLD
128	VBVANGUARD INDEX FDS	2,599	$680,755	0.0%	HOLD
129	BMYBRISTOL-MYERS SQUIBB CO	10,826	$656,597	0.0%	ADD 8%
130	EMEEMCOR GROUP INC	861	$635,685	0.0%	HOLD
131	NTLAINTELLIA THERAPEUTICS INC	48,430	$620,873	0.0%	HOLD
132	AZNASTRAZENECA PLC	3,144	$620,257	0.0%	NEW
133	ORLYOREILLY AUTOMOTIVE INC	6,480	$598,169	0.0%	HOLD
134	AVGOBROADCOM INC	1,914	$592,402	0.0%	HOLD
135	NEENEXTERA ENERGY INC	6,270	$582,358	0.0%	HOLD
136	EFAISHARES TR	5,955	$578,490	0.0%	HOLD
137	FDXFEDEX CORP	1,623	$578,080	0.0%	HOLD
138	LRCXLAM RESEARCH CORP	2,650	$566,199	0.0%	HOLD
139	IBMINTERNATIONAL BUSINESS MACHS	2,310	$559,921	0.0%	ADD 29%
140	TGTTARGET CORP	4,542	$550,490	0.0%	ADD 36%
141	WATWATERS CORP	1,834	$546,165	0.0%	ADD 16%
142	MUBISHARES TR	5,115	$542,957	0.0%	HOLD
143	AMEAMETEK INC	2,522	$540,616	0.0%	ADD 38%
144	KMIKINDER MORGAN INC DEL	15,939	$534,451	0.0%	HOLD
145	MSMORGAN STANLEY	3,246	$534,302	0.0%	HOLD
146	CATCATERPILLAR INC	745	$527,803	0.0%	TRIM −9%
147	KMBKIMBERLY-CLARK CORP	5,274	$508,783	0.0%	TRIM −18%
148	COFCAPITAL ONE FINL CORP	2,739	$499,767	0.0%	HOLD
149	EDCONSOLIDATED EDISON INC	4,349	$492,250	0.0%	HOLD
150	NFLXNETFLIX INC	4,993	$480,077	0.0%	TRIM −9%
151	METAMETA PLATFORMS INC	825	$472,007	0.0%	HOLD
152	LOWLOWES COS INC	1,994	$471,142	0.0%	HOLD
153	IWMISHARES TR	1,871	$464,008	0.0%	HOLD
154	BSMBLACK STONE MINERALS L P	30,382	$459,376	0.0%	HOLD
155	EOGEOG RES INC	3,084	$445,854	0.0%	NEW
156	SLBSCHLUMBERGER LTD	8,234	$423,145	0.0%	TRIM −13%
157	EQNREQUINOR ASA	10,000	$422,000	0.0%	HOLD
158	WSTWEST PHARMACEUTICAL SVSC INC	1,667	$417,817	0.0%	HOLD
159	MOALTRIA GROUP INC	6,048	$399,108	0.0%	HOLD
160	SUBISHARES TR	3,735	$397,778	0.0%	HOLD
161	NRGNRG ENERGY INC	2,716	$396,916	0.0%	HOLD
162	IVEISHARES TR	1,848	$390,205	0.0%	HOLD
163	IEFAISHARES TR	4,155	$376,152	0.0%	HOLD
164	HSYHERSHEY CO	1,787	$371,499	0.0%	HOLD
165	QQQINVESCO QQQ TR	628	$362,482	0.0%	HOLD
166	WMWASTE MGMT INC DEL	1,475	$338,940	0.0%	HOLD
167	NUENUCOR CORP	1,995	$337,355	0.0%	NEW
168	BABOEING CO	1,685	$335,538	0.0%	HOLD
169	IWFISHARES TR	777	$331,313	0.0%	HOLD
170	JJACOBS SOLUTIONS INC	2,573	$327,491	0.0%	HOLD
171	DUKDUKE ENERGY CORP NEW	2,485	$325,386	0.0%	HOLD
172	MMM3M CO	2,227	$323,517	0.0%	TRIM −5%
173	EBAYEBAY INC.	3,552	$323,303	0.0%	HOLD
174	IJHISHARES TR	4,740	$320,092	0.0%	HOLD
175	DFUVDIMENSIONAL ETF TRUST	6,583	$319,012	0.0%	HOLD
176	NVONOVO-NORDISK A S	8,507	$312,632	0.0%	HOLD
177	DFACDIMENSIONAL ETF TRUST	8,043	$312,551	0.0%	HOLD
178	CRMSALESFORCE INC	1,669	$311,552	0.0%	TRIM −12%
179	AMTAMERICAN TOWER CORP	1,802	$310,989	0.0%	HOLD
180	DFIVDIMENSIONAL ETF TRUST	5,856	$309,080	0.0%	HOLD
181	BLKBLACKROCK INC	319	$306,785	0.0%	HOLD
182	BDXBECTON DICKINSON & CO	1,904	$299,366	0.0%	HOLD
183	SCHBSCHWAB STRATEGIC TR	11,764	$295,276	0.0%	HOLD
184	MPCMARATHON PETE CORP	1,190	$290,574	0.0%	NEW
185	APHAMPHENOL CORP	2,256	$285,046	0.0%	TRIM −21%
186	OMCOMNICOM GROUP INC	3,675	$276,764	0.0%	HOLD
187	IWRISHARES TR	2,713	$263,785	0.0%	HOLD
188	TAT&T INC	9,063	$262,760	0.0%	HOLD
189	INTCINTEL CORP	5,908	$260,720	0.0%	TRIM −3%
190	EQIXEQUINIX INC	262	$256,823	0.0%	HOLD
191	DFUSDIMENSIONAL ETF TRUST	3,599	$255,276	0.0%	HOLD
192	QQNITY ELECTRONICS INC	2,181	$251,759	0.0%	NEW
193	CARRCARRIER GLOBAL CORPORATION	4,228	$238,079	0.0%	TRIM −2%
194	SCHWSCHWAB CHARLES CORP	2,480	$233,070	0.0%	HOLD
195	BKNGBOOKING HOLDINGS INC	54	$227,357	0.0%	HOLD
196	VLTOVERALTO CORP	2,466	$218,044	0.0%	HOLD
197	BNYBANK NEW YORK MELLON CORP	1,788	$212,110	0.0%	HOLD
198	DVYISHARES TR	1,399	$211,823	0.0%	TRIM −26%
199	IEMGISHARES INC	3,032	$211,482	0.0%	HOLD
200	IOVAIOVANCE BIOTHERAPEUTICS INC	60,180	$211,232	0.0%	TRIM −9%

showing the top 200 by weight

Position trends· top 15 holdings · shares held over 6 quarters

green added · red trimmed

Security

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

AMATAPPLIED MATLS INC

207K

222K

252K

270K

268K

$92M

MSFTMICROSOFT CORP

238K

237K

233K

231K

221K

225K

$83M

ADIANALOG DEVICES INC

260K

259K

250K

248K

$79M

GEGE AEROSPACE

272K

273K

270K

265K

248K

243K

$69M

RTXRTX CORPORATION

363K

362K

358K

355K

340K

337K

$65M

JCIJOHNSON CONTROLS INTERNATION

596K

592K

582K

555K

514K

482K

$63M

LINLINDE PLC

111K

110K

109K

107K

108K

$54M

BRK.BBERKSHIRE HATHAWAY INC DEL

103K

102K

103K

101K

100K

101K

$48M

CBCHUBB LIMITED

157K

155K

150K

148K

$48M

CACICACI INTL INC

84K

88K

89K

90K

87K

88K

$48M

ALBALBEMARLE CORP

231K

243K

254K

251K

238K

$43M

ITWILLINOIS TOOL WKS INC

164K

165K

166K

162K

163K

$42M

GOOGLALPHABET INC

105K

117K

124K

131K

127K

125K

$36M

PAYXPAYCHEX INC

382K

380K

376K

368K

386K

$36M

ADSKAUTODESK INC

144K

145K

141K

146K

$35M

Shares reported each quarter by the largest current holdings. Green = added vs the prior filing of that name, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

☆GRANDFIELD & DODD, LLC

Implied return what this book implies · modeled, not advice methodology →

Exposures · what this manager owns, by sector & size (2026-Q1)

By sector

By market cap

By region

By industry group GICS — finer than sector

Top holdings

Sector allocation over time · how the GICS mix & top names shifted quarter by quarter

Style box · size × value-growth placement of the reported book (2026-Q1), classified on current fundamentals (not point-in-time) — load it into PORT to overlay your own portfolio

Contribution holdings-based, any period

Holdings· 209 positions (2026-Q1) · largest first · Δ vs 2025-Q4

Position trends· top 15 holdings · shares held over 6 quarters

Related· where to look next

GRANDFIELD & DODD, LLC