Illumina Ownership | Who Owns Illumina?

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Illumina Ownership Summary

Illumina is owned by 97.33% institutional investors, 0.20% insiders, and 2.47% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 12.15% of ILMN shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.26% of its assets in Illumina shares.

ILMN Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Illumina	97.33%	0.20%	2.47%
Sector	Healthcare Stocks	279.15%	10.63%	-189.78%
Industry	Diagnostics & Research Stocks	48.87%	8.42%	42.71%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	19.32M	12.15%	$2.58B
Blackrock	18.07M	11.37%	$1.89B
Capital world investors	18.03M	11.34%	$2.41B
Vanguard group	15.81M	9.95%	$2.11B
State street	5.60M	3.52%	$584.23M
Loomis sayles & co l p	4.21M	2.65%	$562.60M
Wcm investment management	4.13M	2.60%	$551.62M
Bank of new york mellon	3.40M	2.14%	$454.62M
Baillie gifford	3.02M	1.90%	$403.32M
Geode capital management	2.73M	1.72%	$364.67M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Thunderbird partners llp	88.82K	19.20%	$11.87M
Nan fung group	119.20K	13.62%	$15.93M
Eagle health investments lp	343.36K	11.25%	$45.88M
Casdin capital	750.00K	6.67%	$100.22M
Corvex management lp	1.70M	6.31%	$227.19M
Ion asset management	800.50K	6.23%	$106.97M
Guardcap asset management	2.40M	5.18%	$320.73M
Soma equity partners lp	787.62K	4.73%	$82.21M
Senvest management	1.07M	4.40%	$143.02M
Spyglass capital management	537.72K	4.04%	$71.85M

Top Buyers

Holder	Shares	% Assets	Change
Capital world investors	18.03M	0.37%	14.48M
Blackrock	18.07M	0.04%	4.26M
Brown advisory	1.91M	0.32%	1.91M
Norges bank	1.71M	0.03%	1.71M
Bessemer group	1.35M	0.29%	1.34M

Top Sellers

Holder	Shares	% Assets	Change
Morgan stanley	1.95M	0.02%	-1.66M
Marshall wace, llp	-	-	-1.24M
State street	5.60M	0.03%	-1.22M
Nuveen asset management	984.13K	0.04%	-1.09M
Artisan partners limited partnership	-	-	-1.05M

New Positions

Holder	Shares	% Assets	Change	Value
Norges bank	1.71M	0.03%	1.71M	$228.71M
Ark investment management	686.33K	0.76%	686.33K	$91.71M
Spyglass capital management	537.72K	4.04%	537.72K	$71.85M
Ako capital llp	495.29K	0.91%	495.29K	$66.19M
Nikko asset management americas	492.54K	0.71%	492.54K	$65.81M

Sold Out

Holder	Change
Abound wealth management	-1.00
Hm payson	-1.00
Bogart wealth	-1.00
West branch capital	-1.00
Halbert hargrove global advisors	-1.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2025	746	-16.27%	154,758,191	0.16%	97	1.03%	341	-17.03%	278	-7.64%
Dec 31, 2024	810	-2.88%	144,795,665	2.90%	91	1.16%	373	-10.77%	273	0.37%
Sep 30, 2024	826	5.22%	140,424,974	-0.01%	88	1.13%	414	12.81%	271	-4.24%
Jun 30, 2024	774	-5.49%	140,128,785	-1.54%	88	1.10%	364	-10.57%	277	5.73%
Mar 31, 2024	819	-3.19%	142,327,786	0.32%	89	1.12%	407	1.75%	262	-14.10%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Mid-Cap ETF	5.16M	3.26%	2.70K
Vanguard Total Stock Mkt Idx Inv	5.08M	3.21%	3.27K
American Funds Growth Fund of Amer A	5.04M	3.19%	-1.72M
Capital Group Growth Fnd of Amer Comp	5.04M	3.19%	-1.72M
Vanguard US Total Market Shares ETF	5.04M	3.19%	3.78K
Edgewood Growth Instl	3.51M	2.21%	-150.34K
Invesco QQQ Trust	3.16M	1.99%	-
Capital Group Fundamental Invtrs Comp	2.63M	1.66%	-320.88K
American Funds Fundamental Invs A	2.63M	1.66%	-320.88K
Vanguard Institutional Extnd Mkt Idx Tr	2.47M	1.56%	18.72K

Recent Insider Transactions

Date	Name	Role	Activity	Value
May 12, 2025	Dhingra Ankur	SVP, Chief Financial Officer	Buy	$495.38K
May 13, 2025	Thaysen Jacob	Chief Executive Officer	Buy	$399.14K
May 13, 2025	Thaysen Jacob	Chief Executive Officer	Buy	$8.23K
May 13, 2025	Thaysen Jacob	Chief Executive Officer	Buy	$65.57K
May 12, 2025	Thaysen Jacob	Chief Executive Officer	Buy	$16.53K

Insider Transactions Trends

Date	Buy	Sell
2025 Q2	8	-
2025 Q1	-	-
2024 Q4	-	-
2024 Q3	-	-
2024 Q2	-	-

ILMN Ownership FAQ

Who Owns Illumina?

Illumina shareholders are primarily institutional investors at 97.33%, followed by 0.20% insiders and 2.47% retail investors. The average institutional ownership in Illumina's industry, Diagnostics & Research Stocks, is 48.87%, which Illumina exceeds.

Who owns the most shares of Illumina?

Illumina’s largest shareholders are Blackrock funding, inc. /de (19.32M shares, 12.15%), Blackrock (18.07M shares, 11.37%), and Capital world investors (18.03M shares, 11.34%). Together, they hold 34.85% 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 3.26% of its total shares outstanding invested in 5.16M Illumina shares.

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