Chesley Taft & Associates LLC reported 254 positions worth $2.00B for the quarter ended Sep 30, 2026, up 0.1% on the prior quarter. It opened 8 new positions, added to 68, trimmed 125 and exited 10. Its largest holding is Alphabet Inc. at 7% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| HONA Honeywell Aerospace Inc. | +93.1K | – | $14.42M | 0.721% |
| HON Honeywell International Inc | +52.5K | – | $11.08M | 0.554% |
| VLO Valero Energy Corp | +8,418 | +484.9% | $3.26M | 0.197% |
| CVX Chevron Corp | +14.0K | +30.1% | $2.86M | 0.619% |
| GLD Spdr Gold Trust | +5,683 | +6.1% | $2.16M | 1.89% |
| AZN Astrazeneca Plc | +10.1K | +12.4% | $1.63M | 0.738% |
| UNP Union Pacific Corp | +3,909 | +7.9% | $1.06M | 0.724% |
| SPCX Space Exploration Technologies Corp | +4,716 | – | $711.46K | 0.036% |
| MCK Mckesson Corp | +593 | +11.6% | $506.31K | 0.243% |
| COF Capital One Financial Corp | +2,188 | +2.0% | $422.44K | 1.07% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| XOM ExxonMobil Holdings Corp | -129.7K | -100.0% | $17.73M | Exited |
| UBER Uber Technologies, Inc | -161.0K | -59.3% | $11.03M | 0.379% |
| PANW Palo Alto Networks Inc | -25.0K | -13.7% | $9.91M | 3.12% |
| HD Home Depot, Inc. | -33.1K | -54.4% | $9.41M | 0.395% |
| OKE Oneok Inc | -62.3K | -100.0% | $5.41M | Exited |
| GOOG Alphabet Inc. | -9,325 | -2.2% | $3.18M | 6.97% |
| ADBE Adobe Inc. | -11.8K | -92.9% | $2.83M | 0.011% |
| NFLX Netflix Inc | -34.8K | -33.3% | $2.42M | 0.242% |
| EQT EQT Corp | -42.6K | -12.4% | $2.07M | 0.731% |
| FISV Fiserv Inc | -38.6K | -100.0% | $1.90M | Exited |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| HONA Honeywell Aerospace Inc. | +93.1K | $14.42M | 0.721% |
| HON Honeywell International Inc | +52.5K | $11.08M | 0.554% |
| SPCX Space Exploration Technologies Corp | +4,716 | $711.46K | 0.036% |
| GPN Global Payments Inc | +5,165 | $421.83K | 0.021% |
| TTWO Take Two Interactive Software Inc | +1,139 | $236.34K | 0.012% |
| NOW ServiceNow, Inc. | +1,749 | $234.38K | 0.012% |
| IBIT iShares Bitcoin Trust ETF | +4,850 | $229.60K | 0.011% |
| EL Estee Lauder Companies Inc | +2,471 | $229.24K | 0.011% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| XOM ExxonMobil Holdings Corp | -129.7K | $17.73M | 0.888% |
| OKE Oneok Inc | -62.3K | $5.41M | 0.271% |
| FISV Fiserv Inc | -38.6K | $1.90M | 0.095% |
| GFS GLOBALFOUNDRIES Inc. | -3,590 | $295.85K | 0.015% |
| XEL Xcel Energy Inc | -3,403 | $273.26K | 0.014% |
| KMB Kimberly Clark Corp | -1,936 | $212.52K | 0.011% |
| BAC Bank Of America Corp | -3,682 | $209.80K | 0.011% |
| DHI Horton D R Inc | -1,268 | $206.53K | 0.01% |
| CVS CVS HEALTH Corp | -1,989 | $205.76K | 0.01% |
| BRBR Bellring Brands, Inc. | -11.9K | $153.51K | <0.01% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | GOOG Alphabet Inc. | Technology | 409.1K | $139.40M | 6.97% | -9,325 | -2.2% | Reduced | 0% |
| 2 | MSFT Microsoft Corp | Technology | 213.7K | $109.63M | 5.48% | -3,425 | -1.6% | Reduced | 0% |
| 3 | NVDA Nvidia Corp | Technology | 463.3K | $105.80M | 5.29% | -1,422 | -0.3% | Reduced | 0% |
| 4 | AAPL Apple Inc. | Technology | 279.0K | $92.90M | 4.65% | -5,390 | -1.9% | Reduced | 0% |
| 5 | AMZN Amazon Com Inc | Consumer Discretionary | 336.8K | $83.91M | 4.2% | -3,255 | -1.0% | Reduced | 0% |
| 6 | AVGO Broadcom Inc. | Technology | 211.0K | $74.11M | 3.71% | -1,928 | -0.9% | Reduced | 0% |
| 7 | PANW Palo Alto Networks Inc | Technology | 157.2K | $62.44M | 3.12% | -25.0K | -13.7% | Reduced | 0.02% |
| 8 | COST Costco Wholesale Corp | Consumer Staples | 65.0K | $59.13M | 2.96% | -1,081 | -1.6% | Reduced | 0.01% |
| 9 | JPM Jpmorgan Chase & Co | Financial Services | 168.7K | $55.83M | 2.79% | -2,322 | -1.4% | Reduced | 0.01% |
| 10 | JNJ Johnson & Johnson | Healthcare | 208.3K | $55.16M | 2.76% | -1,396 | -0.7% | Reduced | 0.01% |
| 11 | V Visa Inc. | Financial Services | 121.4K | $43.64M | 2.18% | -1,106 | -0.9% | Reduced | 0.01% |
| 12 | SYK Stryker Corp | Healthcare | 138.0K | $38.00M | 1.9% | -769 | -0.6% | Reduced | 0.04% |
| 13 | GLD Spdr Gold Trust | Financial Services | 99.4K | $37.84M | 1.89% | +5,683 | +6.1% | Added | 0.03% |
| 14 | GOOGL Alphabet Inc. | Technology | 98.7K | $33.95M | 1.7% | -2,158 | -2.1% | Reduced | 0% |
| 15 | CB Chubb Ltd | Financial Services | 104.2K | $33.90M | 1.7% | +539 | +0.5% | Added | 0.03% |
Tip. Select a row to see that position’s full history at Chesley Taft & Associates.
As of its Q3 2026 13F filing, Chesley Taft & Associates LLC’s five largest positions were Alphabet Inc. (GOOG) at 7.0%, Microsoft Corp (MSFT) at 5.5%, Nvidia Corp (NVDA) at 5.3%, Apple Inc. (AAPL) at 4.6%, Amazon Com Inc (AMZN) at 4.2% of the reported portfolio.
Chesley Taft & Associates LLC reported a 13F portfolio worth $2.00B across 254 positions for Q3 2026. That is up 0.1% from the previous quarter.
Its largest purchases by value were Honeywell Aerospace Inc. ($14.42M), Honeywell International Inc ($11.08M), Valero Energy Corp ($3.26M). It opened 8 new positions.
Its largest sales by value were ExxonMobil Holdings Corp ($17.73M), Uber Technologies, Inc ($11.03M), Palo Alto Networks Inc ($9.91M). It exited 10 positions entirely.
From the Form 13F-HR reports Chesley Taft & Associates LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.