Illumina Ownership | Who Owns Illumina?


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Illumina Ownership Summary


Illumina is owned by 102.02% institutional investors, 0.21% insiders. Blackrock funding, inc. /de is the largest institutional shareholder, holding 12.54% of ILMN shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.44% of its assets in Illumina shares.

ILMN Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockIllumina102.02%0.21%-2.22%
SectorHealthcare Stocks 244.59%12.11%-156.70%
IndustryDiagnostics & Research Stocks86.12%9.74%4.14%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock funding, inc. /de19.19M12.54%$3.37B
Blackrock18.07M11.37%$1.89B
Capital world investors15.43M10.08%$2.71B
Vanguard group14.36M9.20%$1.88B
Vanguard capital management6.59M4.31%$1.16B
State street6.51M4.25%$1.14B
Wcm investment management6.21M4.06%$1.12B
Fmr4.52M2.96%$795.35M
Aqr capital management3.54M2.32%$623.22M
Primecap management co/ca/3.51M2.30%$617.98M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Thunderbird partners llp88.82K19.20%$11.87M
Corvex management lp2.83M15.20%$497.70M
Guardcap asset management740.13K9.15%$128.75M
Kids capital management58.00K8.01%$10.20M
Eagle health investments lp187.41K5.46%$32.95M
Senvest management1.01M5.20%$177.36M
Casdin capital530.00K4.66%$93.19M
Spyglass capital management458.77K4.37%$80.67M
Ion asset management394.00K4.11%$37.42M
Sicart associates83.13K3.58%$14.62M

Top Buyers

HolderShares% AssetsChange
Blackrock18.07M0.04%4.26M
Fmr4.52M0.03%2.98M
Primecap management co/ca/3.51M0.37%1.45M
Agf management1.36M0.93%1.36M
Wellington management group llp1.81M0.05%1.19M

Top Sellers

HolderShares% AssetsChange
Sessa capital im1.12M3.29%-2.16M
Southpoint capital advisors lp400.00K1.60%-1.70M
Nuveen asset management984.13K0.04%-1.09M
Loomis sayles & co l p1.93M0.43%-1.01M
Corvex management lp2.83M15.20%-999.06K

New Positions

HolderShares% AssetsChangeValue
Agf management1.36M0.93%1.36M$239.98M
Norges bank827.07K0.01%827.07K$145.42M
Sixth street partners management company635.17K0.01%635.17K$111.68M
Howard capital management176.31K0.37%176.31K$31.00M
Artisan partners limited partnership167.69K0.05%167.69K$29.49M

Sold Out

HolderChange
Kingdom financial group llc.-1.00
Goalvest advisory-1.00
West branch capital-1.00
Hm payson-1.00
Quaker wealth management-1.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Jun 30, 20269569.01%156,087,952-0.19%1020.98%45818.04%3303.13%
Mar 31, 2026616-31.02%96,466,028-39.00%630.61%268-43.46%217-20.22%
Dec 31, 2025667-17.65%118,376,620-24.68%750.77%350-7.65%200-27.27%
Sep 30, 20257690.79%154,998,0473.40%981.09%356-11.44%26618.22%
Jun 30, 20257590.53%154,779,844-0.01%971.03%40617.00%222-20.14%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
iShares Core S&P Mid-Cap ETF5.20M3.44%160.00
Vanguard US Total Market Shares ETF5.04M3.19%3.78K
Vanguard MStar Total Stk Mkt Idx Invest4.58M3.03%13.19K
Vanguard Morn Total Stk Mkt Idx Investor4.56M3.02%-58.41K
Vanguard Total Stock Mkt Idx Inv4.56M3.00%-58.41K
American Funds American Balanced A3.49M2.30%-100.00K
American Funds Growth Fund of Amer A3.46M2.28%-2.75M
Edgewood Growth Instl3.51M2.21%-150.34K
Vanguard Small Cap Index3.30M2.19%6.90K
Invesco QQQ Trust3.16M1.99%-

Recent Insider Transactions


DateNameRoleActivityValue
Sep 03, 2026Meister Keith A.-Sell$1.82M
Sep 03, 2026Meister Keith A.-Sell$2.87M
Sep 02, 2026Meister Keith A.-Sell$12.26M
Sep 02, 2026Meister Keith A.-Sell$2.27M
Sep 03, 2026Meister Keith A.-Sell$3.08M

Insider Transactions Trends


DateBuySell
2026 Q3-69
2026 Q2-39
2026 Q112
2025 Q412
2025 Q3--

ILMN Ownership FAQ


Who Owns Illumina?

Illumina shareholders are primarily institutional investors at 102.02%, followed by 0.21% insiders and -2.23% retail investors. The average institutional ownership in Illumina's industry, Diagnostics & Research Stocks, is 86.12%, which Illumina exceeds.

Who owns the most shares of Illumina?

Illumina’s largest shareholders are Blackrock funding, inc. /de (19.19M shares, 12.54%), Blackrock (18.07M shares, 11.37%), and Capital world investors (15.43M shares, 10.08%). Together, they hold 33.99% of Illumina’s total shares outstanding.

Does Blackrock own Illumina?

Yes, BlackRock owns 11.37% of Illumina, totaling 18.07M shares as of Jun 2024. This represents 0.04% of BlackRock's total assets, with a market value of 1.89B$. In the last quarter, BlackRock increased its holdings by 4.26M shares, a 30.86% change.

Who is Illumina’s biggest shareholder by percentage of total assets invested?

Thunderbird partners llp is Illumina’s biggest shareholder by percentage of total assets invested, with 19.20% of its assets in 88.82K Illumina shares, valued at 11.87M$.

Who is the top mutual fund holder of Illumina shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of Illumina shares, with 3.44% of its total shares outstanding invested in 5.2M Illumina shares.

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