Home › BLAIR WILLIAM & CO/IL

BLAIR WILLIAM & CO/IL 13F holdings

Filed 2026-08-11 · BLAIR WILLIAM & CO/IL · 2,054 positions · $38.4B

View QoQ Changes Export CSV

TickerCompanySharesValue% of portfolio
AAPLAPPLE INC5.7M$1.7B4.3%
AMZNAMAZON COM INC5.9M$1.4B3.6%
MSFTMICROSOFT CORP3.4M$1.3B3.3%
NVDANVIDIA CORPORATION5.4M$1.1B2.8%
GOOGALPHABET INC3.0M$1.0B2.7%
GOOGLALPHABET INC2.4M$856.8M2.2%
GEVGE VERNOVA INC659.7K$775.0M2.0%
JPMJPMORGAN CHASE & CO2.3M$743.2M1.9%
SPYSTATE STR SPDR S&P 500 ETF T848.0K$633.3M1.6%
VVISA INC1.8M$631.8M1.6%
COSTCOSTCO WHOLESALE CORPORATION524.1K$490.3M1.3%
IDXXIDEXX LABS INC917.9K$483.2M1.3%
APHAMPHENOL CORP2.5M$441.1M1.1%
MAMASTERCARD INCORPORATED840.4K$431.6M1.1%
RSPINVESCO EXCHANGE TRADED FD T2.0M$421.8M1.1%
PANWPALO ALTO NETWORKS INC1.2M$418.3M1.1%
LLYELI LILLY & CO347.1K$416.3M1.1%
METAMETA PLATFORMS INC669.0K$376.8M1.0%
VEUVANGUARD INTL EQUITY INDEX F4.5M$375.1M1.0%
MUMICRON TECHNOLOGY INC315.9K$364.6M0.9%
IVVISHARES TR484.7K$363.0M0.9%
FASTFASTENAL CO7.4M$355.8M0.9%
AVGOBROADCOM INC925.6K$349.6M0.9%
ABBVABBVIE INC1.3M$324.1M0.8%
VEAVANGUARD TAX-MANAGED FDS4.3M$305.7M0.8%
BWXTBWX TECHNOLOGIES INC1.6M$303.0M0.8%
VOOVANGUARD INDEX FDS419.4K$288.0M0.8%
ANETARISTA NETWORKS INC1.6M$272.6M0.7%
VTVVANGUARD INDEX FDS1.2M$268.6M0.7%
QQQINVESCO QQQ TR359.2K$264.5M0.7%
WMTWALMART INC2.3M$257.2M0.7%
HDHOME DEPOT INC697.6K$246.0M0.6%
JNJJOHNSON & JOHNSON956.3K$242.9M0.6%
BRK-BBERKSHIRE HATHAWAY INC DEL483.6K$242.0M0.6%
PEVERPURE INC3.0M$240.2M0.6%
ECLECOLAB INC854.3K$238.0M0.6%
WSOWATSCO INC564.0K$235.0M0.6%
AXPAMERICAN EXPRESS CO680.3K$230.1M0.6%
PGRPROGRESSIVE CORP1.0M$225.9M0.6%
NOWSERVICENOW INC2.2M$222.1M0.6%
TDGTRANSDIGM GROUP INC165.0K$219.7M0.6%
SYKSTRYKER CORPORATION684.4K$215.5M0.6%
IWMISHARES TR701.1K$210.6M0.5%
CRWDCROWDSTRIKE HLDGS INC271.7K$207.4M0.5%
UBERUBER TECHNOLOGIES INC2.8M$201.7M0.5%
VTIVANGUARD INDEX FDS528.5K$195.6M0.5%
AAONAAON INC1.5M$194.5M0.5%
BABOEING CO878.4K$190.1M0.5%
DHRDANAHER CORP DEL971.1K$185.0M0.5%
CTASCINTAS CORP1.1M$180.9M0.5%
VIGVANGUARD SPECIALIZED FUNDS718.6K$170.0M0.4%
PWRQUANTA SVCS INC224.7K$161.8M0.4%
ISRGINTUITIVE SURGICAL INC397.6K$158.1M0.4%
MRVLMARVELL TECHNOLOGY INC530.5K$158.0M0.4%
ICEINTERCONTINENTAL EXCHANGE IN1.3M$158.0M0.4%
GSGOLDMAN SACHS GROUP INC147.2K$148.9M0.4%
CWCURTISS WRIGHT CORP185.4K$140.5M0.4%
ROKROCKWELL AUTOMATION INC282.3K$139.8M0.4%
RBCRBC BEARINGS INC215.9K$139.0M0.4%
IBMINTERNATIONAL BUSINESS MACHS486.0K$136.7M0.4%
Top Fund Holdings
13F
Top Fund Holdings

What did the whales just file?

Funds
Funds
{{ r.name }}CIK {{ r.cik }}
→
Stocks
Stocks
{{ sm.ticker }} — {{ sm.name }}See who holds it
→
No 13F filers or stocks match “{{ searchQuery }}”. Try a ticker like AAPL or a manager name like Buffett.
{{ searchError }} Refresh and try again, or search a shorter name.

13F data from SEC EDGAR. Quotes are delayed and not for trading. Not investment advice.

Most widely searched
Person / Company
Value
{{ f.person }}{{ f.name }}
{{ f.value }}
Most widely held
Ticker
Company
Funds
{{ s.ticker }}
{{ s.name }}
{{ s.holders }}
› {{ activeFund.name }}

{{ activeFund.name }}

Filed {{ activeFund.filedDate }} · {{ activeFund.quarter }}
Portfolio Value{{ activeFund.value }}
Positions{{ activeFund.positions }}
{{ activeFund.errorMsg }}
{{ activeFund.holdingsNoteText }}
{{ activeFund.holdingsViewNote }}

Holdings

Ticker
Company
{{ sortSharesLabel }}
{{ sortShareChgLabel }}
{{ sortValueLabel }}
{{ sortPctLabel }}
{{ sortPriorLabel }}
{{ sortFirstLabel }}
{{ sortPaidLabel }}
{{ sortNowLabel }}
{{ sortEstLabel }}
{{ h.ticker }}
{{ h.company }}
{{ h.shares }}
{{ h.shareChg }}
{{ h.value }}
{{ h.pct }}
{{ h.priorPct }}
{{ h.firstHeld }}
{{ h.estPaid }}
{{ h.priceNow }}
{{ h.estReturn }}
› {{ stockPageQuery }}

Who holds {{ stockPageQuery }}

{{ stockPageSubtitle }}
{{ quote.ticker }} {{ quote.price }} {{ quote.change }} ({{ quote.changePct }}) {{ quote.asOf }} · {{ quote.marketStatus }} · Chart
{{ stockSharesNote }}
{{ stockPageProgressText }}
{{ stockPageError }} Try again in a moment, or search the fund that holds it.

Holders

Fund
{{ sortHoldersSharesLabel }}
{{ sortHoldersValueLabel }}
{{ sortHoldersPctLabel }}
{{ sortHoldersOwnLabel }}
{{ sr.fundName }}
{{ sr.shares }}
{{ sr.value }}
{{ sr.pct }}
{{ sr.ownership }}
No filers found reporting a position in {{ stockPageQuery }}. Try the CUSIP or a different share class.
› › QoQ

{{ activeFund.name }} — Quarter-over-Quarter
{{ g.label }}
Ticker
Company
Shares
Value
{{ compareFromPctLabel }}
{{ compareToPctLabel }}
Change
{{ h.ticker }}
{{ h.company }}
{{ h.detail1 }}
{{ h.detail2 }}
{{ h.pct }}
{{ h.priorPct }}
{{ h.change }}
13F data from SEC EDGAR. Quotes are delayed and not for trading. Not investment advice.
Loading {{ quote.name }}