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Chesley Taft & Associates LLC
Period ended Sep 30, 2026 · Latest filing Oct 13, 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: $2,558,837,177
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
- ALPHABET INC · CAP STK CL C · 02079K107 · shares: $139,404,937
- MICROSOFT CORP · COM · 594918104 · shares: $109,630,551
- NVIDIA CORPORATION · COM · 67066G104 · shares: $105,800,910
- APPLE INC · COM · 037833100 · shares: $92,896,912
- AMAZON COM INC · COM · 023135106 · shares: $83,907,491
- BROADCOM INC · COM · 11135F101 · shares: $74,111,977
- PALO ALTO NETWORKS INC · COM · 697435105 · shares: $62,438,856
- COSTCO WHOLESALE CORPORATION · COM · 22160K105 · shares: $59,127,494
- JPMORGAN CHASE & CO · COM · 46625H100 · shares: $55,826,570
- JOHNSON & JOHNSON · COM · 478160104 · shares: $55,155,667
Reported holdings
629 reported entries| Issuer | Class | CUSIP | Type | Shares / principal | Reported value (USD) |
|---|---|---|---|---|---|
| CATERPILLAR INC | COM | 149123101 | — | 1,908 shares | $1,546,987 |
| HONEYWELL AEROSPACE INC | COM | 43849R105 | — | 9,934 shares | $1,539,472 |
| VANGUARD TAX-MANAGED FDS | VAN FTSE DEV MKT | 921943858 | — | 21,750 shares | $1,535,768 |
| HUBBELL INC | COM | 443510607 | — | 3,363 shares | $1,525,457 |
| ALCON AG | ORD SHS | H01301128 | — | 23,464 shares | $1,519,294 |
| VANECK ETF TRUST | JP MRGAN EM LOC | 92189H300 | — | 60,350 shares | $1,498,491 |
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 | — | 2 shares | $1,494,010 |
| AT&T INC | COM | 00206R102 | — | 60,360 shares | $1,472,784 |
| FRANKLIN ELEC INC | COM | 353514102 | — | 15,065 shares | $1,444,583 |
| HONEYWELL INTL INC | COM | 438516205 | — | 6,834 shares | $1,441,564 |
| XYLEM INC | COM | 98419M100 | — | 13,953 shares | $1,413,020 |
| PEPSICO INC | COM | 713448108 | — | 11,070 shares | $1,402,790 |
| ISHARES TR | IBONDS DEC2026 | 46435GAA0 | — | 57,182 shares | $1,386,092 |
| SPDR SERIES TRUST | ST STR RATE ETF | 78468R200 | — | 44,450 shares | $1,370,838 |
| ISHARES TR | IBONDS DEC 2032 | 46436E312 | — | 56,900 shares | $1,369,583 |
| TARGET CORP | COM | 87612E106 | — | 8,736 shares | $1,368,821 |
| ALPHABET INC | CAP STK CL A | 02079K305 | — | 3,930 shares | $1,352,234 |
| J P MORGAN EXCHANGE TRADED F | MUNICIPAL ETF | 46641Q647 | — | 28,213 shares | $1,342,375 |
| VERIZON COMMUNICATIONS INC | COM | 92343V104 | — | 28,795 shares | $1,320,835 |
| THERMO FISHER SCIENTIFIC INC | COM | 883556102 | — | 1,945 shares | $1,312,972 |
| CADENCE DESIGN SYSTEM INC | COM | 127387108 | — | 3,896 shares | $1,286,401 |
| PLAINS GP HLDGS L P | LTD PARTNR INT A | 72651A207 | — | 49,100 shares | $1,271,690 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 | — | 2,545 shares | $1,267,283 |
| OMNICOM GROUP INC | COM | 681919106 | — | 17,163 shares | $1,263,712 |
| CORNING INC | COM | 219350105 | — | 8,183 shares | $1,258,218 |
| CORTEVA INC | COM | 22052L104 | — | 16,098 shares | $1,250,036 |
| LOCKHEED MARTIN CORP | COM | 539830109 | — | 2,442 shares | $1,243,589 |
| META PLATFORMS INC | CL A | 30303M102 | — | 1,700 shares | $1,232,806 |
| DUKE ENERGY CORP NEW | COM NEW | 26441C204 | — | 10,787 shares | $1,229,826 |
| IRON MTN INC DEL | COM | 46284V101 | — | 11,062 shares | $1,227,329 |
| VERTIV HOLDINGS CO | COM CL A | 92537N108 | — | 5,077 shares | $1,225,131 |
| S&P GLOBAL INC | COM | 78409V104 | — | 3,051 shares | $1,203,528 |
| SHELL PLC | SPON ADS | 780259305 | — | 12,268 shares | $1,166,073 |
| CHURCH & DWIGHT CO INC | COM | 171340102 | — | 12,200 shares | $1,149,484 |
| ISHARES TR | NATIONAL MUN ETF | 464288414 | — | 11,350 shares | $1,147,485 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | — | 1,524 shares | $1,127,409 |
| ISHARES TR | RUS 1000 VAL ETF | 464287598 | — | 4,543 shares | $1,126,346 |
| ZOETIS INC | CL A | 98978V103 | — | 16,067 shares | $1,121,959 |
| SLB LIMITED | COM STK | 806857108 | — | 22,077 shares | $1,075,591 |
| ISHARES TR | JPMORGAN USD EMG | 464288281 | — | 11,815 shares | $1,073,315 |
| CAESARS ENTERTAINMENT INC NE | COM | 12769G100 | — | 36,155 shares | $1,071,996 |
| ISHARES TR | CORE S&P TTL STK | 464287150 | — | 6,424 shares | $1,068,183 |
| ISHARES TR | S&P 500 GRWT ETF | 464287309 | — | 7,478 shares | $1,063,772 |
| VANGUARD SCOTTSDALE FDS | MTG-BKD SECS ETF | 92206C771 | — | 23,631 shares | $1,049,453 |
| VANGUARD MUN BD FDS | TAX EXEMPT BD | 922907746 | — | 22,100 shares | $1,046,656 |
| ILLINOIS TOOL WKS INC | COM | 452308109 | — | 4,052 shares | $1,042,499 |
| LAMAR ADVERTISING CO | CL A | 512816109 | — | 7,205 shares | $1,038,313 |
| CANADIAN IMPERIAL BANK OF CO | COM | 136069101 | — | 9,389 shares | $1,034,480 |
| US BANCORP | COM NEW | 902973304 | — | 17,748 shares | $1,025,124 |
| DELTA AIR LINES INC | COM NEW | 247361702 | — | 12,214 shares | $1,019,380 |
| GENERAL MTRS CO | COM | 37045V100 | — | 13,216 shares | $1,017,663 |
| ISHARES TR | 20 YR TR BD ETF | 464287432 | — | 12,996 shares | $1,010,850 |
| GILEAD SCIENCES INC | COM | 375558103 | — | 6,748 shares | $1,005,789 |
| VANGUARD WORLD FD | ESG US STK ETF | 921910733 | — | 7,403 shares | $1,003,340 |
| KEYCORP | COM | 493267108 | — | 49,844 shares | $1,000,369 |
| VANGUARD INTL EQUITY INDEX F | ALLWRLD EX US | 922042775 | — | 12,040 shares | $998,959 |
| DOMINION ENERGY INC | COM | 25746U109 | — | 16,457 shares | $995,978 |
| INVESCO EXCHANGE TRADED FD T | S&P500 EQL WGT | 46137V357 | — | 4,654 shares | $968,125 |
| ZEBRA TECHNOLOGIES CORPORATI | CL A | 989207105 | — | 2,579 shares | $962,766 |
| BUNGE GLOBAL SA | COM SHS | H11356104 | — | 8,893 shares | $951,106 |
| SYSCO CORP | COM | 871829107 | — | 12,183 shares | $949,787 |
| TESLA INC | COM | 88160R101 | — | 2,662 shares | $944,504 |
| SNAP ON INC | COM | 833034101 | — | 2,550 shares | $926,543 |
| ISHARES TR | MORNINGSTAR VALU | 464288109 | — | 8,742 shares | $920,882 |
| ELI LILLY & CO | COM | 532457108 | — | 780 shares | $902,522 |
| LAM RESEARCH CORP | COM NEW | 512807306 | — | 2,723 shares | $894,533 |
| SOUTHERN CO | COM | 842587107 | — | 10,771 shares | $892,808 |
| VANGUARD INTL EQUITY INDEX F | TT WRLD ST ETF | 922042742 | — | 5,652 shares | $892,214 |
| BORGWARNER INC | COM | 099724106 | — | 14,841 shares | $892,093 |
| MONDELEZ INTL INC | CL A | 609207105 | — | 15,397 shares | $890,255 |
| ISHARES TR | SHRT NAT MUN ETF | 464288158 | — | 8,495 shares | $888,067 |
| SIMON PPTY GROUP INC NEW | COM | 828806109 | — | 4,415 shares | $886,355 |
| KLA CORP | COM NEW | 482480100 | — | 4,539 shares | $884,787 |
| VANGUARD INDEX FDS | MRNGSTR VAL ETF | 922908744 | — | 4,090 shares | $883,767 |
| SEAGATE TECHNOLOGY HLDNGS PL | ORD SHS | G7997R103 | — | 940 shares | $867,000 |
| ISHARES TR | RUSSELL 2000 ETF | 464287655 | — | 3,106 shares | $863,126 |
| GOLDMAN SACHS GROUP INC | COM | 38141G104 | — | 958 shares | $862,545 |
| AON PLC | SHS CL A | G0403H108 | — | 3,105 shares | $859,371 |
| KRAFT HEINZ CO | COM | 500754106 | — | 37,170 shares | $844,502 |
| HCA HEALTHCARE INC | COM | 40412C101 | — | 1,965 shares | $838,544 |
| AMERICAN EXPRESS CO | COM | 025816109 | — | 2,740 shares | $833,234 |
| VANGUARD INDEX FDS | MRNGSTR SML CP V | 922908611 | — | 3,487 shares | $805,602 |
| FLEX LTD | ORD | Y2573F102 | — | 7,024 shares | $772,570 |
| MARSH & MCLENNAN COS INC | COM | 571748102 | — | 4,451 shares | $759,919 |
| INVESCO QQQ TR | UNIT SER 1 | 46090E103 | — | 1,009 shares | $746,428 |
| CMS ENERGY CORP | COM | 125896100 | — | 11,806 shares | $744,722 |
| TJX COS INC NEW | COM | 872540109 | — | 5,569 shares | $736,834 |
| MICRON TECHNOLOGY INC | COM | 595112103 | — | 687 shares | $731,731 |
| PHILIP MORRIS INTL INC | COM | 718172109 | — | 3,825 shares | $729,937 |
| BLOCK H & R INC | COM | 093671105 | — | 17,650 shares | $721,003 |
| STATE STR SPDR S&P MIDCAP 40 | UTSER1 S&PDCRP | 78467Y107 | — | 1,085 shares | $712,530 |
| WILLIAMS COS INC | COM | 969457100 | — | 10,435 shares | $709,267 |
| WELLS FARGO & CO | COM | 949746101 | — | 8,836 shares | $707,322 |
| SPDR SERIES TRUST | ST STR SP BIOT | 78464A870 | — | 4,475 shares | $705,618 |
| CUMMINS INC | COM | 231021106 | — | 1,341 shares | $692,720 |
| GENERAL MILLS INC | COM | 370334104 | — | 21,179 shares | $681,117 |
| CARVANA CO | CL A | 146869102 | — | 10,812 shares | $676,182 |
| ISHARES TR | TIPS BD ETF | 464287176 | — | 6,443 shares | $670,330 |
| ISHARES TR | FLTG RATE NT ETF | 46429B655 | — | 13,000 shares | $663,650 |
| NORTHROP GRUMMAN CORP | COM | 666807102 | — | 1,340 shares | $647,863 |