Blair William & Co/Il Top Holdings and 13F Report (2026)

About Blair William & Co/Il

Investment Activity

Blair William & Co/Il has $34.90 billion in total holdings as of March 31, 2026.
Blair William & Co/Il owns shares of 1,922 different stocks, but just 146 companies or ETFs make up 80% of its holdings.
Approximately 6.27% of the portfolio was purchased this quarter.
About 5.88% of the portfolio was sold this quarter.
This quarter, Blair William & Co/Il has purchased 1,867 new stocks and bought additional shares in 799 stocks.
Blair William & Co/Il sold shares of 745 stocks and completely divested from 100 stocks this quarter.

Largest Holdings

Apple: $1,505,206,630
Microsoft: $1,294,895,307
Amazon.com: $1,261,686,654
NVIDIA: $946,621,332
Alphabet: $870,839,461

Largest New Holdings this Quarter

G0593M107 - AstraZeneca: $19,844,615 Holding
82706C108 - Silicon Motion Technology: $11,585,992 Holding
40131M109 - Guardant Health: $9,573,596 Holding
83422E204 - Solid Biosciences: $4,688,755 Holding
754907103 - Rayonier: $2,699,962 Holding

Largest Purchases this Quarter

Invesco S&P 500 Equal Weight ETF: 1,130,618 shares (about $216.99M)
Vanguard FTSE All-World ex-US ETF: 1,457,190 shares (about $109.43M)
Quanta Services: 145,549 shares (about $79.91M)
SPDR Gold Shares: 131,532 shares (about $56.60M)
Vanguard Value ETF: 267,888 shares (about $52.56M)

Largest Sales this Quarter

Clearwater Analytics: 3,295,378 shares (about $77.94M)
Workday: 574,666 shares (about $74.66M)
Tyler Technologies: 185,480 shares (about $63.50M)
APPLOVIN CORP: 154,488 shares (about $61.49M)
Uber Technologies: 807,962 shares (about $58.12M)

Sector Allocation Over Time

Selling

Neutral

Buying

Latest 13F Holdings and Changes Since Previous Quarterly Filing

Issuer Name	Holdings Value	Approximate Purchase/Sale	Change in Shares	Shares Held	% of Portfolio	Sector
AAPL Apple	$1,505,206,630	$4,830,639 ▼	-0.3%	5,930,914	4.3%	Computer and Technology
MSFT Microsoft	$1,294,895,307	$28,302,456 ▼	-2.1%	3,498,110	3.7%	Computer and Technology
AMZN Amazon.com	$1,261,686,654	$1,350,839 ▼	-0.1%	6,057,938	3.6%	Retail/Wholesale
NVDA NVIDIA	$946,621,332	$11,593,239 ▼	-1.2%	5,427,875	2.7%	Computer and Technology
GOOG Alphabet	$870,839,461	$23,807,656 ▼	-2.7%	3,035,765	2.5%	Computer and Technology
GOOGL Alphabet	$700,529,693	$16,524,058 ▼	-2.3%	2,436,117	2.0%	Computer and Technology
JPM JPMorgan Chase & Co.	$678,701,562	$751,873 ▼	-0.1%	2,307,253	1.9%	Finance
GE VERNOVA INC	$580,132,301	$10,734,058 ▲	1.9%	664,603	1.7%	COM
V Visa	$557,506,856	$25,585,829 ▼	-4.4%	1,844,583	1.6%	Business Services
SPY SPDR S&P 500 ETF Trust	$549,728,310	$8,135,100 ▼	-1.5%	845,294	1.6%	Finance
IDXX IDEXX Laboratories	$531,736,581	$30,925,855 ▼	-5.5%	946,336	1.5%	Medical
COST Costco Wholesale	$519,416,520	$94,661 ▲	0.0%	521,277	1.5%	Retail/Wholesale
MA Mastercard	$461,388,665	$15,880,698 ▼	-3.3%	923,405	1.3%	Business Services
META Meta Platforms	$412,917,905	$8,285,592 ▼	-2.0%	721,720	1.2%	Computer and Technology
FAST Fastenal	$342,140,020	$16,659,503 ▲	5.1%	7,373,707	1.0%	Retail/Wholesale
RSP Invesco S&P 500 Equal Weight ETF	$322,541,611	$216,988,268 ▲	205.6%	1,680,604	0.9%	ETF
APH Amphenol	$318,442,307	$16,876,822 ▼	-5.0%	2,520,319	0.9%	Computer and Technology
IVV iShares Core S&P 500 ETF	$317,354,713	$1,685,934 ▼	-0.5%	485,839	0.9%	ETF
VEU Vanguard FTSE All-World ex-US ETF	$313,063,774	$109,434,982 ▲	53.7%	4,168,625	0.9%	ETF
LLY Eli Lilly and Company	$298,021,975	$715,581 ▼	-0.2%	324,018	0.9%	Medical
WALMART INC	$295,075,768	$4,760,173 ▼	-1.6%	2,374,282	0.8%	COM
BWXT BWX Technologies	$294,082,157	$315,119 ▼	-0.1%	1,438,125	0.8%	Aerospace
ABBV AbbVie	$290,155,471	$729,027 ▼	-0.3%	1,334,109	0.8%	Medical
AVGO Broadcom	$284,231,851	$6,772,701 ▲	2.4%	918,328	0.8%	Computer and Technology
SYK Stryker	$278,545,919	$920,709 ▲	0.3%	847,701	0.8%	Medical
ICE Intercontinental Exchange	$250,645,776	$15,246,406 ▼	-5.7%	1,593,628	0.7%	Finance
HD Home Depot	$250,423,255	$1,722,398 ▲	0.7%	761,419	0.7%	Retail/Wholesale
VEA Vanguard FTSE Developed Markets ETF	$247,482,484	$45,724,607 ▲	22.7%	3,862,086	0.7%	ETF
DHR Danaher	$245,874,062	$14,375,473 ▼	-5.5%	1,296,804	0.7%	Medical
PGR Progressive	$241,803,102	$37,126,991 ▼	-13.3%	1,219,749	0.7%	Finance
VOO Vanguard S&P 500 ETF	$237,454,594	$13,235,742 ▲	5.9%	397,380	0.7%	ETF
BRK.B Berkshire Hathaway	$237,358,312	$23,126,193 ▲	10.8%	495,322	0.7%	Finance
UBER Uber Technologies	$237,339,968	$58,116,713 ▼	-19.7%	3,299,596	0.7%	Computer and Technology
JNJ Johnson & Johnson	$233,594,709	$1,480,573 ▲	0.6%	955,632	0.7%	Medical
ECL Ecolab	$230,482,633	$2,271,811 ▲	1.0%	866,411	0.7%	Basic Materials
VTV Vanguard Value ETF	$228,751,900	$52,559,618 ▲	29.8%	1,165,912	0.7%	ETF
WSO Watsco	$211,980,580	$33,737,908 ▼	-13.7%	582,700	0.6%	Construction
AXP American Express	$209,850,760	$1,899,575 ▼	-0.9%	693,767	0.6%	Finance
PANW Palo Alto Networks	$209,194,794	$8,735,194 ▲	4.4%	1,304,858	0.6%	Computer and Technology
ISRG Intuitive Surgical	$196,025,760	$6,519,317 ▼	-3.2%	425,228	0.6%	Medical
TDG Transdigm Group	$192,675,350	$4,614,992 ▼	-2.3%	166,248	0.6%	Aerospace
NOW ServiceNow	$188,293,262	$43,268,219 ▼	-18.7%	1,800,988	0.5%	Computer and Technology
VEEV Veeva Systems	$187,530,423	$28,281,615 ▼	-13.1%	1,067,576	0.5%	Medical
BA Boeing	$183,525,972	$48,466,793 ▲	35.9%	922,102	0.5%	Aerospace
QQQ Invesco QQQ	$179,512,497	$17,151,508 ▲	10.6%	311,016	0.5%	Finance
EVERPURE INC	$172,281,462	$8,004,408 ▼	-4.4%	2,918,046	0.5%	CL A
NFLX Netflix	$169,555,835	$25,744,743 ▲	17.9%	1,763,451	0.5%	Consumer Discretionary
GLD SPDR Gold Shares	$166,408,231	$56,596,914 ▲	51.5%	386,735	0.5%	Finance
CTAS Cintas	$164,666,834	$3,630,423 ▼	-2.2%	973,553	0.5%	Business Services
XOM ExxonMobil	$160,563,928	$3,690,276 ▼	-2.2%	946,386	0.5%	Energy
IWM iShares Russell 2000 ETF	$155,800,632	$17,233,530 ▲	12.4%	628,228	0.4%	Finance
CVX Chevron	$148,137,437	$10,247,132 ▲	7.4%	715,986	0.4%	Energy
VIG Vanguard Dividend Appreciation ETF	$147,912,091	$3,057,509 ▲	2.1%	687,771	0.4%	ETF
GWRE Guidewire Software	$145,865,292	$23,818,181 ▼	-14.0%	975,296	0.4%	Computer and Technology
ARISTA NETWORKS INC	$141,347,604	$3,274,173 ▲	2.4%	1,151,227	0.4%	COM SHS
ABT Abbott Laboratories	$136,321,246	$25,671,406 ▼	-15.8%	1,327,761	0.4%	Medical
AON AON	$136,085,646	$24,112,309 ▼	-15.1%	421,605	0.4%	Finance
BX Blackstone	$135,528,580	$21,897,888 ▼	-13.9%	1,178,612	0.4%	Finance
CPRT Copart	$135,156,859	$11,420,268 ▼	-7.8%	4,070,990	0.4%	Business Services
AAON AAON	$134,237,265	$4,702,019 ▼	-3.4%	1,622,203	0.4%	Construction
GS The Goldman Sachs Group	$132,198,518	$1,067,638 ▲	0.8%	156,265	0.4%	Finance
PG Procter & Gamble	$129,119,696	$3,605,945 ▲	2.9%	893,933	0.4%	Consumer Staples
IBM International Business Machines	$125,668,840	$11,394,758 ▲	10.0%	518,457	0.4%	Computer and Technology
UNP Union Pacific	$124,907,914	$10,785,681 ▲	9.5%	514,829	0.4%	Transportation
PWR Quanta Services	$123,996,141	$79,909,295 ▲	181.3%	225,850	0.4%	Construction
DXCM DexCom	$121,039,928	$3,859,312 ▼	-3.1%	1,927,387	0.3%	Medical
ROL Rollins	$120,974,339	$227,260 ▲	0.2%	2,265,013	0.3%	Construction
VTI Vanguard Total Stock Market ETF	$119,460,233	$10,984,845 ▲	10.1%	372,371	0.3%	ETF
IUSV iShares Core S&P U.S. Value ETF	$119,218,604	$7,357,195 ▲	6.6%	1,165,952	0.3%	Manufacturing
RBC RBC Bearings	$118,309,459	$2,390,814 ▼	-2.0%	217,833	0.3%	Industrials
LINDE PLC	$115,602,266	$289,524 ▼	-0.2%	233,182	0.3%	SHS
CW Curtiss-Wright	$113,765,345	$6,828,904 ▲	6.4%	167,027	0.3%	Aerospace
IWF iShares Russell 1000 Growth ETF	$113,433,670	$1,282,613 ▲	1.1%	266,026	0.3%	ETF
MU Micron Technology	$112,268,109	$10,926,099 ▲	10.8%	332,311	0.3%	Computer and Technology
WM Waste Management	$111,288,088	$3,388,257 ▼	-3.0%	484,303	0.3%	Business Services
TSLA Tesla	$110,053,358	$950,938 ▲	0.9%	296,041	0.3%	Auto/Tires/Trucks
VUG Vanguard Growth ETF	$109,385,211	$233,246 ▲	0.2%	250,430	0.3%	ETF
MRK Merck & Co., Inc.	$108,476,224	$8,151,454 ▲	8.1%	901,789	0.3%	Medical
MCD McDonald's	$108,230,420	$1,598,082 ▲	1.5%	348,243	0.3%	Retail/Wholesale
KO CocaCola	$107,666,629	$2,822,063 ▼	-2.6%	1,415,735	0.3%	Consumer Staples
JLL Jones Lang LaSalle	$102,682,650	$2,844,477 ▼	-2.7%	337,417	0.3%	Finance
ORLY O'Reilly Automotive	$101,947,120	$889,868 ▼	-0.9%	1,104,400	0.3%	Retail/Wholesale
ROK Rockwell Automation	$101,946,046	$1,763,538 ▲	1.8%	284,067	0.3%	Computer and Technology
LYV Live Nation Entertainment	$100,974,003	$2,800,389 ▼	-2.7%	662,081	0.3%	Consumer Discretionary
GD General Dynamics	$100,232,354	$2,528,848 ▲	2.6%	292,035	0.3%	Aerospace
CRWD CrowdStrike	$98,531,293	$10,368,900 ▲	11.8%	252,379	0.3%	Computer and Technology
AME AMETEK	$98,058,314	$6,157,918 ▼	-5.9%	457,447	0.3%	Computer and Technology
ZTS Zoetis	$94,012,022	$20,647,260 ▼	-18.0%	795,297	0.3%	Medical
ITW Illinois Tool Works	$93,787,713	$2,370,462 ▼	-2.5%	360,320	0.3%	Industrials
EFA iShares MSCI EAFE ETF	$93,128,695	$3,100,583 ▲	3.4%	958,805	0.3%	Finance
HEI Heico	$92,350,261	$29,174,324 ▲	46.2%	336,799	0.3%	Aerospace
FANG Diamondback Energy	$88,083,397	$27,918,452 ▲	46.4%	445,338	0.3%	Energy
NDAQ Nasdaq	$87,098,004	$22,592,374 ▲	35.0%	1,026,010	0.2%	Finance
TMO Thermo Fisher Scientific	$85,011,447	$7,836,450 ▲	10.2%	172,953	0.2%	Medical
PEP PepsiCo	$84,876,203	$1,627,439 ▲	2.0%	546,566	0.2%	Consumer Staples
SBUX Starbucks	$84,084,510	$8,217,732 ▲	10.8%	938,548	0.2%	Retail/Wholesale
CAT Caterpillar	$83,952,882	$1,593,320 ▲	1.9%	118,501	0.2%	Industrials
SCHW Charles Schwab	$83,674,622	$16,247,450 ▲	24.1%	890,345	0.2%	Finance
IEFA iShares Core MSCI EAFE ETF	$83,557,019	$4,501,876 ▲	5.7%	922,976	0.2%	ETF
DE Deere & Company	$83,156,260	$8,975,646 ▲	12.1%	147,623	0.2%	Industrials

Showing largest 100 holdings. View all holdings.

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Blair William & Co/Il Top Holdings and 13F Report (2026)

About Blair William & Co/Il

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

Best-in-Class Portfolio Monitoring

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Advanced Stock Screeners and Research Tools

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Blair William & Co/Il Top Holdings and 13F Report (2026)

About Blair William & Co/Il

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Map of 500 Largest Holdings ofBlair William & Co/Il

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

MarketBeat All Access Features

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools