← Back to Discover
GRANDFIELD & DODD, LLC
Period ended Sep 30, 2026 · Latest filing Oct 29, 2026
These quarterly holdings are delayed and may not include all assets or short positions.
Values are from the reporting date, not current prices or purchase costs.
The same security may appear in multiple rows.
Source: SEC
Reported portfolio value
Quarter-end reported holdings; not current value or investment performance.
View reported values
- Sep 30, 2026: $1,874,849,680
More quarters will appear as history becomes available.
Top holdings
Top 10 at Sep 30, 2026. Matching entries are combined; security classes and options remain separate. Shares exclude principal amounts; option shares reflect the reported underlying amount.
View top holdings values
- APPLIED MATLS INC · COM · 038222105 · shares: $123,563,377
- MICROSOFT CORP · COM · 594918104 · shares: $115,435,199
- ANALOG DEVICES INC · COM · 032654105 · shares: $90,247,558
- GE AEROSPACE · COM NEW · 369604301 · shares: $69,587,055
- JOHNSON CONTROLS INTERNATION · SHS · G51502105 · shares: $61,634,898
- RTX CORPORATION · COM · 75513E101 · shares: $60,888,744
- CACI INTL INC · CL A · 127190304 · shares: $53,237,432
- LINDE PLC · SHS · G54950103 · shares: $50,635,508
- BERKSHIRE HATHAWAY INC DEL · CL B NEW · 084670702 · shares: $50,257,596
- CHUBB LIMITED · COM · H1467J104 · shares: $46,625,622
Reported holdings
216 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| HUBBELL INC | COM | 443510607 | — | 3,095 shares | $1,403,892 |
| PFIZER INC | COM | 717081103 | — | 48,815 shares | $1,392,205 |
| INTUITIVE SURGICAL INC | COM NEW | 46120E602 | — | 3,296 shares | $1,340,252 |
| GENMAB A/S | SPONSORED ADS | 372303206 | — | 37,538 shares | $1,339,168 |
| INVESCO EXCHANGE TRADED FD T | S&P500 EQL WGT | 46137V357 | — | 6,237 shares | $1,297,629 |
| VISA INC | COM CL A | 92826C839 | — | 3,368 shares | $1,210,223 |
| ISHARES TR | S&P 500 GRWT ETF | 464287309 | — | 8,430 shares | $1,199,252 |
| HOME DEPOT INC | COM | 437076102 | — | 4,023 shares | $1,144,503 |
| BIOMARIN PHARMACEUTICAL INC | COM | 09061G101 | — | 18,872 shares | $1,132,320 |
| EATON CORP PLC | SHS | G29183103 | — | 2,631 shares | $1,130,567 |
| UNION PAC CORP | COM | 907818108 | — | 4,103 shares | $1,116,549 |
| VANGUARD INDEX FDS | MRNGSTR LRG CAP | 922908637 | — | 2,955 shares | $1,039,717 |
| CISCO SYS INC | COM | 17275R102 | — | 9,111 shares | $980,617 |
| DEERE & CO | COM | 244199105 | — | 1,439 shares | $966,360 |
| VANGUARD INTL EQUITY INDEX F | FTSE PACIFIC ETF | 922042866 | — | 8,340 shares | $965,855 |
| FREEPORT MCMORAN INC | CL B | 35671D857 | — | 13,519 shares | $946,330 |
| IOVANCE BIOTHERAPEUTICS INC | COM | 462260100 | — | 62,500 shares | $926,250 |
| VANGUARD TAX-MANAGED FDS | VAN FTSE DEV MKT | 921943858 | — | 12,423 shares | $877,253 |
| ISHARES TR | MSCI EAFE ETF | 464287465 | — | 8,355 shares | $868,087 |
| TESLA INC | COM | 88160R101 | — | 2,445 shares | $867,510 |
| VANGUARD INTL EQUITY INDEX F | FTSE EMR MKT ETF | 922042858 | — | 14,516 shares | $861,062 |
| SPDR GOLD TR | GOLD SHS | 78463V107 | — | 2,254 shares | $858,414 |
| ORACLE CORP | COM | 68389X105 | — | 6,230 shares | $855,379 |
| VANGUARD INDEX FDS | MRNGSTR MID CAP | 922908629 | — | 10,892 shares | $854,229 |
| ALNYLAM PHARMACEUTICALS INC | COM | 02043Q107 | — | 3,379 shares | $833,734 |
| LAM RESEARCH CORP | COM NEW | 512807306 | — | 2,468 shares | $810,763 |
| MCDONALDS CORP | COM | 580135101 | — | 3,394 shares | $783,810 |
| WALMART INC | COM | 931142103 | — | 7,244 shares | $752,796 |
| VANGUARD INDEX FDS | MRNGSTR SML CAP | 922908751 | — | 2,599 shares | $739,476 |
| TARGET CORP | COM | 87612E106 | — | 4,542 shares | $711,686 |
| HONEYWELL INTL INC | COM | 438516205 | — | 3,243 shares | $684,078 |
| BP PLC | SPONSORED ADR | 055622104 | — | 15,431 shares | $678,810 |
| BRISTOL-MYERS SQUIBB CO | COM | 110122108 | — | 10,826 shares | $675,542 |
| INTEL CORP | COM | 458140100 | — | 5,508 shares | $662,227 |
| INTELLIA THERAPEUTICS INC | COM | 45826J105 | — | 52,310 shares | $630,859 |
| WATERS CORP | COM | 941848103 | — | 1,416 shares | $622,176 |
| WEST PHARMACEUTICAL SVSC INC | COM | 955306105 | — | 1,667 shares | $618,057 |
| MORGAN STANLEY | COM NEW | 617446448 | — | 3,246 shares | $610,631 |
| EMCOR GROUP INC | COM | 29084Q100 | — | 800 shares | $603,592 |
| AMETEK INC | COM | 031100100 | — | 2,422 shares | $600,002 |
| FULLER H B CO | COM | 359694106 | — | 11,824 shares | $584,933 |
| META PLATFORMS INC | CL A | 30303M102 | — | 795 shares | $576,518 |
| BROADCOM INC | COM | 11135F101 | — | 1,640 shares | $575,952 |
| OREILLY AUTOMOTIVE INC | COM | 67103H107 | — | 6,480 shares | $553,457 |
| MAGNUM ICE CREAM CO NV | ORD SHS | N5505D105 | — | 29,997 shares | $533,347 |
| ISHARES TR | RUSSELL 2000 ETF | 464287655 | — | 1,871 shares | $519,932 |
| ISHARES TR | NATIONAL MUN ETF | 464288414 | — | 5,115 shares | $517,127 |
| ADVANCED MICRO DEVICES INC | COM | 007903107 | — | 834 shares | $510,208 |
| VANGUARD INDEX FDS | MRNGSTR VAL ETF | 922908744 | — | 2,339 shares | $505,627 |
| HONEYWELL AEROSPACE INC | COM | 43849R105 | — | 3,181 shares | $492,960 |
| KIMBERLY-CLARK CORP | COM | 494368103 | — | 5,024 shares | $489,488 |
| ASTRAZENECA PLC | ORD | G0593M107 | — | 2,977 shares | $480,858 |
| KINDER MORGAN INC DEL | COM | 49456B101 | — | 15,939 shares | $480,576 |
| CAPITAL ONE FINL CORP | COM | 14040H105 | — | 2,474 shares | $477,752 |
| NEXTERA ENERGY INC | COM | 65339F101 | — | 6,270 shares | $474,890 |
| MARATHON PETE CORP | COM | 56585A102 | — | 1,190 shares | $470,550 |
| INTERNATIONAL BUSINESS MACHS | COM | 459200101 | — | 2,110 shares | $464,052 |
| NUCOR CORP | COM | 670346105 | — | 1,975 shares | $461,656 |
| CATERPILLAR INC | COM | 149123101 | — | 545 shares | $441,881 |
| NETFLIX INC. | COM | 64110L106 | — | 6,293 shares | $437,867 |
| CONSOLIDATED EDISON INC | COM | 209115104 | — | 4,274 shares | $436,873 |
| BLACK STONE MINERALS L P | COM UNIT | 09225M101 | — | 30,382 shares | $435,070 |
| SALESFORCE INC | COM | 79466L302 | — | 1,866 shares | $428,378 |
| EOG RES INC | COM | 26875P101 | — | 3,084 shares | $424,852 |
| 3M CO | COM | 88579Y101 | — | 2,577 shares | $423,116 |
| ISHARES TR | S&P 500 VAL ETF | 464287408 | — | 1,848 shares | $421,861 |
| EQUINOR ASA | SPONSORED ADR | 29446M102 | — | 10,000 shares | $416,000 |
| ALTRIA GROUP INC | COM | 02209S103 | — | 6,148 shares | $414,006 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | — | 547 shares | $404,671 |
| ISHARES TR | CORE MSCI EAFE | 46432F842 | — | 4,155 shares | $402,536 |
| SLB LIMITED | COM STK | 806857108 | — | 8,234 shares | $401,160 |
| ISHARES TR | CORE S&P MCP ETF | 464287507 | — | 5,300 shares | $381,407 |
| AMPHENOL CORP | CL A | 032095101 | — | 4,512 shares | $380,362 |
| ISHARES TR | RUS 1000 GRW ETF | 464287614 | — | 3,028 shares | $379,287 |
| EBAY INC. | COM | 278642103 | — | 3,477 shares | $368,736 |
| DIMENSIONAL ETF TRUST | US MKTWIDE VALUE | 25434V724 | — | 6,583 shares | $362,065 |
| JACOBS SOLUTIONS INC | COM | 46982L108 | — | 2,650 shares | $358,466 |
| DIMENSIONAL ETF TRUST | US COR EQU 2 ETF | 25434V708 | — | 8,043 shares | $357,511 |
| ISHARES TR | SELECT DIVID ETF | 464287168 | — | 2,299 shares | $349,609 |
| BECTON DICKINSON & CO | COM | 075887109 | — | 1,936 shares | $346,544 |
| BLACKROCK INC | COM | 09290D101 | — | 319 shares | $337,595 |
| VANGUARD STAR FDS | VG TL INTL STK F | 921909768 | — | 3,951 shares | $335,762 |
| ISHARES TR | RUS MID CAP ETF | 464287499 | — | 3,086 shares | $329,307 |
| DIMENSIONAL ETF TRUST | INTERNATNAL VAL | 25434V807 | — | 5,856 shares | $327,116 |
| LOWES COS INC | COM | 548661107 | — | 1,756 shares | $323,613 |
| NOVO-NORDISK A S | ADR | 670100205 | — | 8,507 shares | $322,500 |
| SCHWAB STRATEGIC TR | US BRD MKT ETF | 808524102 | — | 10,539 shares | $308,898 |
| WASTE MGMT INC DEL | COM | 94106L109 | — | 1,475 shares | $300,782 |
| DIMENSIONAL ETF TRUST | US EQUI MARK ETF | 25434V401 | — | 3,599 shares | $298,908 |
| DUKE ENERGY CORP NEW | COM NEW | 26441C204 | — | 2,601 shares | $296,540 |
| PHILLIPS 66 | COM | 718546104 | — | 1,147 shares | $292,841 |
| ISHARES TR | SHRT NAT MUN ETF | 464288158 | — | 2,750 shares | $287,485 |
| AMERICAN TOWER CORP | COM | 03027X100 | — | 1,727 shares | $282,693 |
| HERSHEY CO | COM | 427866108 | — | 1,787 shares | $281,649 |
| QUALCOMM INC | COM | 747525103 | — | 1,529 shares | $281,397 |
| FEDEX CORP | COM | 31428X106 | — | 983 shares | $280,243 |
| QNITY ELECTRONICS INC | COMMON STOCK | 74743L100 | — | 2,181 shares | $274,365 |
| EQUINIX INC | COM | 29444U700 | — | 262 shares | $265,034 |
| NRG ENERGY INC | COM NEW | 629377508 | — | 2,716 shares | $259,785 |
| BANK OF NY MELLON CORP | COM | 064058100 | — | 1,788 shares | $258,598 |