BLAIR WILLIAM & CO/IL

CIK

902367

Location

CHICAGO, IL

Portfolio Value

Large $33,871,544,731

Diversification

Diversified

Filing Date

Global Rank

#227 / 8,700 ▼ 19

Top Industry

Semiconductors 8.1%

Period ended 2 months ago

Filed Aug 11, 2026 · 33d

26 quarters · since Mar 2020

Portfolio Concentration

1,281 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

5.6%

+0.9 pts

Top 5

21.6%

+0.8 pts

Top 10

32.4%

+1.5 pts

HHI

155

Diversified+11

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	28.9%	$9,787,273,226	205
Industrials	17.3%	$5,848,905,001	201
Financial Services	12.6%	$4,261,492,927	212
Healthcare	10.3%	$3,494,708,250	183
Communication Services	7.9%	$2,679,093,412	39
Consumer Cyclical	7.6%	$2,584,550,748	120
Unclassified	6.5%	$2,214,617,814	46
Consumer Defensive	4.0%	$1,343,250,924	53
Basic Materials	1.8%	$612,831,185	53
Energy	1.6%	$530,920,212	61
Real Estate	1.0%	$353,499,222	55
Utilities	0.5%	$160,401,810	53

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
MIAX	Miami International Holdings, Inc.	+1,103,651	1,769,432	$65,752,093
ANET	Arista Networks, Inc.	+453,489	1,604,716	$272,609,154
NOW	ServiceNow, Inc.	+439,042	2,240,030	$222,390,177
VEA	Vanguard FTSE Developed Markets ETF	+428,937	4,291,023	$305,735,388
TTAN	ServiceTitan, Inc.	+306,036	363,384	$25,694,882
PPLT	abrdn Platinum ETF Trust	+260,664	304,766	$4,306,343
KLAC	Kla Corp	+256,312	288,392	$87,010,750
PRCT	PROCEPT BioRobotics Corp	+207,789	531,724	$12,006,327
TWST	Twist Bioscience Corp	+199,139	256,556	$26,394,481
BAC	Bank Of America Corp /De/	+162,566	1,204,669	$68,642,039
HON	Honeywell International Inc	+158,553	454,384	$101,736,577
TWLO	Twilio Inc	+147,735	376,430	$77,668,801
ZM	Zoom Communications, Inc.	+143,460	256,974	$22,179,425
CVNA	Carvana Co.	+139,856	175,096	$11,524,818
NTLA	Intellia Therapeutics, Inc.	+134,402	152,612	$2,582,195
P	Everpure, Inc.	+130,048	3,048,094	$240,159,326
PTLO	Portillo's Inc.	+129,590	1,242,512	$5,889,506
FIG	Figma, Inc.	+120,753	174,161	$3,150,572
BWXT	BWX Technologies, Inc.	+118,292	1,556,417	$302,956,569
TDUP	ThredUp Inc.	+113,175	2,195,729	$15,040,743
SOLS	Solstice Advanced Materials Inc.	+108,954	153,677	$13,615,782
SLDB	Solid Biosciences Inc.	+105,061	756,277	$7,555,207
CTAS	Cintas Corp	+89,977	1,063,530	$180,885,182
SOFI	SoFi Technologies, Inc.	+87,305	493,064	$8,840,637
BBDC	Barings BDC, Inc.	+84,000	98,833	$842,057
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
AAXJ	iShares MSCI All Country Asia ex Japan ETF	−12,103,536	296	$35,321
FNDA	Schwab Fundamental U.S. Small Company ETF	−2,752,953	5,288	$201,261
VB	Vanguard Morningstar Small-Cap ETF	−2,640,497	73,321	$22,225,061
CPRT	Copart Inc	−1,919,038	2,151,952	$60,663,526
RYAN	Ryan Specialty Holdings, Inc.	−1,133,310	508,270	$19,192,275
ROL	Rollins Inc	−788,286	1,476,727	$61,638,584
VEU	Vanguard FTSE All-World Ex-US ETF	−747,100	4,479,218	$375,134,507
MDLN	Medline Inc.	−607,519	557,911	$22,004,009
STT	State Street Corp	−546,178	10,671	$1,809,801
BIV	Vanguard Intermediate-Term Bond ETF	−543,811	108,356	$8,310,905
UBER	Uber Technologies, Inc	−505,006	2,794,590	$201,657,614
GDYN	Grid Dynamics Holdings, Inc.	−485,795	13,560	$77,020
NFLX	Netflix Inc	−477,970	1,285,481	$91,783,343
IVZ	Invesco Ltd.	−418,366	19,608	$517,455
TECH	BIO-TECHNE Corp	−350,756	513,573	$36,283,932
DHR	Danaher Corp /De/	−325,709	971,095	$184,974,175
VEEV	Veeva Systems Inc	−316,733	750,843	$133,252,107
ICE	Intercontinental Exchange, Inc.	−309,874	1,283,754	$158,042,954
NDAQ	Nasdaq, Inc.	−280,595	745,415	$58,753,610
VRSK	Verisk Analytics, Inc.	−276,712	103,394	$18,562,324
VIGI	Vanguard International Dividend Appreciation ETF	−269,109	75,207	$7,022,829
CWI	State Street SPDR MSCI ACWI ex-US ETF	−268,028	13,770	$560,025
ABT	Abbott Laboratories	−264,550	1,063,211	$96,475,766
DXCM	Dexcom Inc	−261,722	1,665,665	$112,182,537
GWRE	Guidewire Software, Inc.	−248,909	726,387	$89,381,920
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
HONA	Honeywell Aerospace Inc.	454,071	$100,386,016
PTRN	Pattern Group Inc.	703,580	$17,723,180
SPCX	Space Exploration Technologies Corp	59,525	$10,170,441
CDNL	Cardinal Infrastructure Group Inc.	98,193	$9,249,780
CBRS	Cerebras Systems Inc.	28,986	$6,405,906
HTFL	Heartflow, Inc.	102,482	$3,006,821
NBIS	Nebius Group N.V.	9,719	$2,684,096
FDXF	FedEx Freight Holding Company, Inc.	17,052	$2,574,852
INFQ	Infleqtion, Inc.	174,983	$2,330,773
AEHR	Aehr Test Systems	17,838	$1,713,518
TLX	Telix Pharmaceuticals Ltd	122,985	$1,418,017
TARS	Tarsus Pharmaceuticals, Inc.	22,053	$1,388,015
OCFC	Oceanfirst Financial Corp	67,737	$1,322,903
LIFE	Ethos Technologies Inc.	63,365	$1,149,441
HRZN	Horizon Technology Finance Corp	239,073	$1,130,815
BKSY	BlackSky Technology Inc.	34,630	$966,869
AM	Antero Midstream Corp	37,159	$845,367
BLLN	BillionToOne, Inc.	6,978	$837,220
BCSF	Bain Capital Specialty Finance, Inc.	64,468	$807,139
MAA	Mid America Apartment Communities Inc.	5,377	$747,080
MLKN	Millerknoll, Inc.	36,075	$738,094
MAIR	Madison Air Solutions Corp	16,365	$638,235
NNN	Nnn REIT, Inc.	13,704	$637,647
CNQ	CANADIAN NATURAL RESOURCES Ltd	15,842	$625,759
CNC	Centene Corp	9,519	$611,024
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
ABI	VictoryShares Pioneer Asset-Based Income ETF	2,175,571	$358,302,762
XOM	ExxonMobil Holdings Corp	946,386	$160,563,848
BAPR	Innovator U.S. Equity Buffer ETF - April	2,824,450	$118,985,637
AIRR	First Trust RBA American Industrial Renaissance ETF	2,364,514	$118,782,336
BWX	State Street SPDR Bloomberg International Treasury Bond ETF	1,641,159	$108,980,637
AAPR	Innovator Equity Defined Protection ETF - 2 Yr to April 2028	2,359,785	$93,336,408
XLBI	State Street Materials Select Sector SPDR Premium Income ETF	859,893	$83,420,110
AGGY	WisdomTree Yield Enhanced U.S. Aggregate Bond Fund	1,149,608	$68,803,294
AFK	VanEck Africa Index ETF	596,818	$49,268,734
EDV	Vanguard World Funds Extended Duration ETF	298,683	$46,767,571
BNDW	Vanguard Total World Bond ETF	472,155	$39,252,056
BKF	iShares MSCI BIC ETF	387,423	$28,544,499
ACES	ALPS Clean Energy ETF	539,352	$28,466,501
AGNG	Global X Funds Global X Aging Population ETF	660,217	$26,991,903
—		168,191	$22,512,399
CVY	Invesco Zacks Multi-Asset Income ETF	278,349	$20,759,055
BBAG	JPMorgan BetaBuilders U.S. Aggregate Bond ETF	182,483	$11,916,569
AAAP	Pacer Barings CLO Market Flex ETF	186,668	$10,927,594
ANEW	ProShares MSCI Transformational Changes ETF	150,077	$8,210,277
ACYN	FT Vest Laddered Autocallable Barrier & Income ETF	112,314	$7,074,769
BCLO	iShares BBB-B CLO Active ETF	127,237	$6,607,417
HURN	Huron Consulting Group Inc.	51,446	$6,558,850
PBH	Prestige Consumer Healthcare Inc.	106,485	$6,311,365
—		80,727	$5,156,315
AIEQ	Amplify AI Powered Equity ETF	114,298	$5,154,136
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

1,281 tracked positions · $33,871,544,731 total · filing declares 2,054 positions · $38,388,159,607 · 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 1,281 positions by value · page 1 of 26

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
GOOGL	Alphabet Inc. Communication Services	Reduced	5,356,345	-115,537	$1,902,263,966	+21.1%	5.62%
AAPL	Apple Inc. Technology	Reduced	5,731,525	-199,389	$1,658,474,073	+10.2%	4.90%
AMZN	Amazon Com Inc Consumer Cyclical	Reduced	5,875,124	-182,814	$1,400,277,053	+11.0%	4.13%
MSFT	Microsoft Corp Technology	Reduced	3,442,574	-55,536	$1,284,148,952	−0.8%	3.79%
NVDA	Nvidia Corp Technology	Reduced	5,374,424	-53,451	$1,075,368,497	+13.6%	3.17%
APH	Amphenol Corp /De/ Technology	Reduced	2,504,409	-15,910	$883,154,789	+38.7%	2.61%
GEV	GE Vernova Inc. Industrials	Reduced	659,673	-4,930	$775,023,420	+33.6%	2.29%
JPM	Jpmorgan Chase & Co Financial Services	Reduced	2,270,360	-36,893	$743,156,938	+9.5%	2.19%
SPY	Spdr S&P 500 ETF Trust	Added	848,034	+2,740	$633,286,350	+15.2%	1.87%
V	Visa Inc. Financial Services	Reduced	1,841,604	-2,979	$631,835,916	+13.3%	1.87%
COST	Costco Wholesale Corp /New Consumer Defensive	Added	524,692	+3,415	$490,833,624	−5.5%	1.45%
IDXX	Idexx Laboratories Inc /De Healthcare	Reduced	918,556	-27,780	$483,564,619	−9.1%	1.43%
MA	Mastercard Inc Financial Services	Reduced	842,350	-81,055	$432,630,959	−6.2%	1.28%
PANW	Palo Alto Networks Inc Technology	Reduced	1,226,519	-78,339	$418,267,509	+99.9%	1.23%
LLY	ELI LILLY & Co Healthcare	Added	347,098	+23,080	$416,319,788	+39.7%	1.23%
META	Meta Platforms, Inc. Communication Services	Reduced	670,881	-50,839	$377,900,558	−8.5%	1.12%
VEU	Vanguard FTSE All-World Ex-US ETF	Reduced	4,479,218	-747,100	$375,134,507	−1.0%	1.11%
MU	Micron Technology Inc Technology	Reduced	315,878	-16,433	$364,614,816	+224.8%	1.08%
FAST	Fastenal Co Industrials	Added	7,407,059	+33,352	$355,761,043	+4.0%	1.05%
AVGO	Broadcom Inc. Technology	Added	929,716	+11,388	$351,200,219	+23.6%	1.04%
ABBV	AbbVie Inc. Healthcare	Reduced	1,287,857	-46,252	$324,076,335	+11.7%	0.96%
VEA	Vanguard FTSE Developed Markets ETF	Added	4,291,023	+428,937	$305,735,388	+23.5%	0.90%
BWXT	BWX Technologies, Inc. Industrials	Added	1,556,417	+118,292	$302,956,569	+3.0%	0.89%
BRK-B	Berkshire Hathaway Inc Financial Services	Reduced	483,649	-11,737	$289,159,148	+2.1%	0.85%
ANET	Arista Networks, Inc. Technology	Added	1,604,716	+453,489	$272,609,154	+92.9%	0.80%
QQQ	Invesco Qqq Trust, Series 1	Added	359,219	+48,203	$264,528,871	+47.4%	0.78%
WMT	Walmart Inc. Consumer Defensive	Reduced	2,270,879	-103,403	$257,199,755	−12.8%	0.76%
HD	Home Depot, Inc. Consumer Cyclical	Reduced	697,590	-63,829	$246,026,041	−1.8%	0.73%
JNJ	Johnson & Johnson Healthcare	Added	956,262	+630	$242,861,860	+4.0%	0.72%
P	Everpure, Inc. Technology	Added	3,048,094	+130,048	$240,159,326	+39.4%	0.71%
ECL	Ecolab Inc. Basic Materials	Reduced	854,294	-12,117	$238,014,851	+3.3%	0.70%
WSO	Watsco Inc Industrials	Reduced	564,024	-18,676	$235,045,721	+10.9%	0.69%
AXP	American Express Co Financial Services	Reduced	680,321	-13,446	$230,118,578	+9.7%	0.68%
PGR	Progressive Corp/Oh/ Financial Services	Reduced	1,034,104	-185,645	$225,900,018	−6.6%	0.67%
NOW	ServiceNow, Inc. Technology	Added	2,240,030	+439,042	$222,390,177	+18.1%	0.66%
TDG	TransDigm Group INC Industrials	Reduced	164,960	-1,288	$219,733,318	+14.0%	0.65%
SYK	Stryker Corp Healthcare	Reduced	684,392	-163,309	$215,473,977	−22.6%	0.64%
CRWD	CrowdStrike Holdings, Inc. Technology	Added	272,235	+19,856	$207,753,417	+110.9%	0.61%
UBER	Uber Technologies, Inc Technology	Reduced	2,794,590	-505,006	$201,657,614	−15.0%	0.60%
AAON	Aaon, Inc. Industrials	Reduced	1,533,434	-88,769	$194,531,437	+44.9%	0.57%
BA	Boeing Co Industrials	Reduced	878,396	-43,706	$190,146,382	+3.6%	0.56%
DHR	Danaher Corp /De/ Healthcare	Reduced	971,095	-325,709	$184,974,175	−24.8%	0.55%
CTAS	Cintas Corp Industrials	Added	1,063,530	+89,977	$180,885,182	+9.8%	0.53%
VIG	Vanguard Dividend Appreciation ETF	Reduced	718,567	-99,618	$170,027,323	+6.6%	0.50%
PWR	Quanta Services, Inc. Industrials	Reduced	224,665	-1,185	$161,767,786	+30.5%	0.48%
ISRG	Intuitive Surgical Inc Healthcare	Reduced	397,640	-27,588	$158,133,475	−19.3%	0.47%
MRVL	Marvell Technology, Inc. Technology	Reduced	530,549	-193,427	$158,045,241	+120.4%	0.47%
ICE	Intercontinental Exchange, Inc. Financial Services	Reduced	1,283,754	-309,874	$158,042,954	−36.9%	0.47%
GS	Goldman Sachs Group Inc Financial Services	Reduced	147,217	-9,048	$148,890,857	+12.6%	0.44%
CW	Curtiss Wright Corp Industrials	Added	185,609	+18,582	$140,647,075	+23.6%	0.42%

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.