Chesley Taft & Associates LLC

CIK

1164632

Location

CHICAGO, IL

Portfolio Value

Mid $1,888,718,420

Diversification

Diversified

Filing Date

Global Rank

#1,338 / 8,517 ▼ 106

Top Industry

Semiconductors 11.0%

3Y Alpha vs SPY

+21.3%

Period ended 46 days ago

Filed Jul 8, 2026 · 38d

26 quarters · since Mar 2020

Clone Performance

Aug 2023–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+183.8%

SPY

+75.3%

Annualised alpha

+21.0%

Max drawdown

−17.3%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends; a captured split can shorten the simulated window. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

258 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

4.9%

−2.8 pts

Top 5

22.1%

−1.5 pts

Top 10

36.9%

−1.1 pts

HHI

202

Diversified−18

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	30.6%	$577,298,843	48
Financial Services	17.7%	$333,711,655	42
Healthcare	13.2%	$249,042,732	29
Consumer Cyclical	8.5%	$160,371,141	22
Industrials	7.8%	$147,365,743	38
Consumer Defensive	7.0%	$132,918,658	18
Unclassified	5.1%	$95,411,482	7
Communication Services	4.6%	$87,240,204	10
Energy	2.1%	$39,273,954	14
Basic Materials	1.7%	$32,742,383	10
Utilities	1.1%	$20,975,430	13
Real Estate	0.7%	$12,366,195	7

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
UBER	Uber Technologies, Inc	+45,090	271,677	$19,604,212
CRM	Salesforce, Inc.	+41,847	85,183	$13,344,768
ABT	Abbott Laboratories	+37,055	279,684	$25,378,525
BKNG	Booking Holdings Inc.	+10,847	11,300	$2,014,112
CVNA	Carvana Co.	+10,779	12,642	$832,096
KLAC	Kla Corp	+8,214	9,565	$2,885,856
COF	Capital One Financial Corp	+6,841	108,726	$21,812,609
DELL	Dell Technologies Inc.	+5,984	16,222	$6,999,143
NEE	Nextera Energy Inc	+5,724	144,257	$12,661,436
CSL	Carlisle Companies Inc	+4,564	10,224	$3,708,756
MU	Micron Technology Inc	+3,454	6,502	$7,505,193
RTX	RTX Corp	+3,257	124,452	$23,612,277
KEY	Keycorp /New/	+3,252	50,944	$1,174,259
C	Citigroup Inc	+3,120	152,055	$21,281,617
EMR	Emerson Electric Co	+3,083	31,831	$4,556,607
CTSH	Cognizant Technology Solutions Corp	+2,542	30,433	$1,178,669
AZN	Astrazeneca PLC	+2,474	81,276	$15,411,554
MET	Metlife Inc	+2,202	26,392	$2,233,026
ULTA	Ulta Beauty, Inc.	+2,057	3,227	$1,455,311
CTVA	Corteva, Inc.	+1,903	17,058	$1,444,641
SLB	Slb Limited/Nv	+1,774	30,187	$1,403,392
BX	Blackstone Inc.	+1,648	66,521	$7,827,525
LOW	Lowes Companies Inc	+1,597	19,089	$4,208,933
TXN	Texas Instruments Inc	+1,239	14,230	$4,241,536
QCOM	Qualcomm Inc/De	+1,215	17,061	$3,152,701
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
GOOGL	Alphabet Inc.	−428,981	100,825	$36,031,830
MSFT	Microsoft Corp	−20,915	217,171	$81,009,125
ZTS	Zoetis Inc.	−17,131	16,067	$1,154,574
ALC	Alcon Inc	−15,841	25,438	$1,706,889
ADBE	Adobe Inc.	−12,274	12,693	$2,602,318
WY	Weyerhaeuser Co	−11,157	141,938	$3,397,995
PANW	Palo Alto Networks Inc	−10,434	182,105	$62,101,447
CDNS	Cadence Design Systems Inc	−10,367	3,311	$1,242,684
PFE	Pfizer Inc	−9,511	194,317	$4,679,152
NVDA	Nvidia Corp	−8,483	464,689	$92,979,621
ACN	Accenture plc	−7,790	90,271	$11,233,322
MO	Altria Group, Inc.	−6,380	3,689	$265,423
PM	Philip Morris International Inc.	−6,113	4,675	$845,753
KO	Coca Cola Co	−5,971	267,641	$21,751,183
CL	Colgate Palmolive Co	−5,968	2,353	$215,723
PGR	Progressive Corp/Oh/	−5,946	14,180	$3,097,620
AVGO	Broadcom Inc.	−5,463	212,959	$80,445,261
PEP	Pepsico Inc	−4,917	162,052	$21,941,840
CM	Canadian Imperial Bank Of Commerce /Can/	−4,576	70,388	$8,094,620
T	At&T Inc.	−4,316	67,471	$1,396,649
MDLZ	Mondelez International, Inc.	−4,246	16,938	$979,693
APH	Amphenol Corp /De/	−4,212	202,062	$35,627,571
HD	Home Depot, Inc.	−4,082	60,835	$21,455,287
HBAN	Huntington Bancshares Inc /Md/	−4,060	24,431	$433,161
JPM	Jpmorgan Chase & Co	−4,050	171,069	$55,996,014
No positions match the current search.

New Positions

Positions the filer opened this quarter

14 positions

Ticker	Company	Shares	Value
AMD	Advanced Micro Devices Inc	5,051	$2,934,175
TOST	Toast, Inc.	57,600	$1,602,431
USB	US Bancorp De	19,123	$1,155,029
GNRC	Generac Holdings Inc.	2,365	$692,494
EQH	Equitable Holdings, Inc.	9,670	$424,318
MRVL	Marvell Technology, Inc.	1,309	$389,937
DVN	Devon Energy Corp/De	7,139	$294,983
WMG	Warner Music Group Corp.	10,578	$286,345
GEN	Gen Digital Inc.	11,335	$282,128
BNY	Bank of New York Mellon Corp	1,890	$273,312
KMB	Kimberly Clark Corp	1,936	$212,514
BAC	Bank Of America Corp /De/	3,682	$209,800
DHI	Horton D R Inc /De/	1,268	$206,531
CVS	CVS HEALTH Corp	1,989	$205,762
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
XOM	ExxonMobil Holdings Corp	134,642	$22,843,360
HON	Honeywell International Inc	99,097	$22,398,897
VEA	Vanguard FTSE Developed Markets ETF	339,275	$21,740,742
VEU	Vanguard FTSE All-World Ex-US ETF	261,536	$19,641,353
VB	Vanguard Morningstar Small-Cap ETF	37,423	$9,801,831
TSCO	Tractor Supply Co /De/	114,324	$5,178,876
IBB	iShares Biotechnology ETF	23,808	$4,019,980
CWI	State Street SPDR MSCI ACWI ex-US ETF	86,520	$3,165,765
ALB	Albemarle Corp	7,012	$1,258,864
MDT	Medtronic plc	13,198	$1,143,606
VXUS	Vanguard Total International Stock ETF	11,995	$924,933
NEU	Newmarket Corp	1,120	$717,864
VXF	Vanguard Extended Market ETF	2,765	$569,037
VRSK	Verisk Analytics, Inc.	2,710	$514,222
CME	Cme Group Inc.	1,348	$398,131
NOW	ServiceNow, Inc.	3,135	$327,764
IBIT	iShares Bitcoin Trust ETF	7,450	$286,229
PSX	Phillips 66	1,383	$251,954
FLNC	Fluence Energy, Inc.	17,261	$237,510
IBOC	International Bancshares Corp	3,500	$235,515
KR	Kroger Co	3,109	$224,966
ESLT	Elbit Systems Ltd	254	$215,668
EXC	Exelon Corp	4,343	$212,893
VIG	Vanguard Dividend Appreciation ETF	953	$204,952
CTRA	Coterra Energy Inc.	10,180	$0
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

258 tracked positions · $1,888,718,420 total · as of Jun 30, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 258 positions by value · page 1 of 6

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Reduced	464,689	-8,483	$92,979,621	+12.7%	4.92%
AAPL	Apple Inc. Technology	Reduced	284,343	-44	$82,277,489	+14.0%	4.36%
AMZN	Amazon Com Inc Consumer Cyclical	Added	340,030	+358	$81,042,749	+14.6%	4.29%
MSFT	Microsoft Corp Technology	Reduced	217,171	-20,915	$81,009,125	−8.1%	4.29%
AVGO	Broadcom Inc. Technology	Reduced	212,959	-5,463	$80,445,261	+19.0%	4.26%
PANW	Palo Alto Networks Inc Technology	Reduced	182,105	-10,434	$62,101,447	+101.2%	3.29%
COST	Costco Wholesale Corp /New Consumer Defensive	Reduced	66,032	-1,213	$61,770,954	−7.8%	3.27%
JPM	Jpmorgan Chase & Co Financial Services	Reduced	171,069	-4,050	$55,996,014	+8.7%	2.96%
JNJ	Johnson & Johnson Healthcare	Reduced	209,735	-977	$53,266,397	+3.4%	2.82%
SPY	Spdr S&P 500 ETF Trust	Reduced	61,466	-994	$45,900,964	+13.0%	2.43%
SYK	Stryker Corp Healthcare	Reduced	138,749	-445	$43,683,734	−4.5%	2.31%
V	Visa Inc. Financial Services	Reduced	122,542	-13	$42,042,934	+13.5%	2.23%
GOOGL	Alphabet Inc. Communication Services	Reduced	100,825	-428,981	$36,031,830	−76.3%	1.91%
APH	Amphenol Corp /De/ Technology	Reduced	202,062	-4,212	$35,627,571	—	1.89%
CB	Chubb Ltd Financial Services	Added	103,675	+1,104	$35,326,219	+5.7%	1.87%
GLD	Spdr Gold Trust	Reduced	93,673	-2,154	$34,507,259	−16.3%	1.83%
AXP	American Express Co Financial Services	Reduced	81,938	-1,273	$27,715,528	+10.1%	1.47%
MA	Mastercard Inc Financial Services	Added	50,518	+92	$25,946,044	+3.0%	1.37%
ABT	Abbott Laboratories Healthcare	Added	279,684	+37,055	$25,378,525	+1.9%	1.34%
LLY	ELI LILLY & Co Healthcare	Reduced	20,347	-77	$24,404,803	+29.9%	1.29%
RTX	RTX Corp Industrials	Added	124,452	+3,257	$23,612,277	+1.0%	1.25%
PEP	Pepsico Inc Consumer Defensive	Reduced	162,052	-4,917	$21,941,840	−15.4%	1.16%
COF	Capital One Financial Corp Financial Services	Added	108,726	+6,841	$21,812,609	+17.4%	1.15%
KO	Coca Cola Co Consumer Defensive	Reduced	267,641	-5,971	$21,751,183	+4.5%	1.15%
ORCL	Oracle Corp Technology	Reduced	147,204	-1,568	$21,572,746	−1.4%	1.14%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	60,835	-4,082	$21,455,287	+0.5%	1.14%
C	Citigroup Inc Financial Services	Added	152,055	+3,120	$21,281,617	+26.0%	1.13%
TMO	Thermo Fisher Scientific Inc. Healthcare	Added	42,333	+470	$21,224,072	+3.1%	1.12%
AZO	Autozone Inc Consumer Cyclical	Added	6,569	+78	$20,994,128	−4.2%	1.11%
META	Meta Platforms, Inc. Communication Services	Reduced	37,262	-124	$20,989,311	−1.9%	1.11%
WM	Waste Management Inc Industrials	Added	92,482	+582	$20,612,387	−2.4%	1.09%
ITW	Illinois Tool Works Inc Industrials	Reduced	74,412	-3,493	$20,126,213	−0.7%	1.07%
UBER	Uber Technologies, Inc Technology	Added	271,677	+45,090	$19,604,212	+20.3%	1.04%
EQT	EQT Corp Energy	Reduced	343,445	-829	$18,260,969	−16.7%	0.97%
WFC	Wells Fargo & Company/Mn Financial Services	Reduced	219,282	-1,958	$18,121,463	+2.9%	0.96%
AZN	Astrazeneca PLC Healthcare	Added	81,276	+2,474	$15,411,554	−0.8%	0.82%
DIS	Walt Disney Co Communication Services	Reduced	144,873	-3,810	$13,944,026	−2.7%	0.74%
UNP	Union Pacific Corp Industrials	Added	49,293	+678	$13,407,696	+13.7%	0.71%
CRM	Salesforce, Inc. Technology	Added	85,183	+41,847	$13,344,768	+65.0%	0.71%
NEE	Nextera Energy Inc Utilities	Added	144,257	+5,724	$12,661,436	−1.6%	0.67%
ECL	Ecolab Inc. Basic Materials	Added	40,413	+420	$11,259,465	+5.8%	0.60%
ACN	Accenture plc Technology	Reduced	90,271	-7,790	$11,233,322	−42.2%	0.59%
UNH	Unitedhealth Group Inc Healthcare	Reduced	24,620	-327	$10,232,810	+51.6%	0.54%
MDY	Spdr S&P Midcap 400 ETF Trust	Reduced	14,342	-20	$10,087,301	+13.9%	0.53%
CHD	Church & Dwight Co Inc /De/ Consumer Defensive	Reduced	98,751	-519	$9,566,996	+3.3%	0.51%
GWW	W.W. Grainger, Inc. Industrials	Added	7,001	+50	$9,524,160	+25.6%	0.50%
ICE	Intercontinental Exchange, Inc. Financial Services	Reduced	76,832	-451	$9,458,787	−22.2%	0.50%
WTW	Willis Towers Watson PLC Financial Services	Reduced	31,336	-1,070	$8,190,289	−13.1%	0.43%
CM	Canadian Imperial Bank Of Commerce /Can/ Financial Services	Reduced	70,388	-4,576	$8,094,620	+14.0%	0.43%
GEV	GE Vernova Inc. Industrials	Added	6,864	+169	$8,064,238	+38.0%	0.43%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.