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ILMN Institutional Ownership & 13F Holders | SmartMoneyDB

ILMNILLUMINA INC

COM · CUSIP 452327109

Smart Money Ownership

Of the 16 tracked institutions holding ILMN, 9 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +2.8pt. It's a gauge of who owns the name, not just how many.

$145.3M · 0.2% of book

PRICE T ROWE ASSOCIATES INC /MD/

$27.9M

+3.5pt

ILMN (ILLUMINA INC) Institutional Ownership Summary

Among the 16 tracked institutional investors we monitor, ILMN (ILLUMINA INC) is held with a combined value of $8.84B across 53,908,693 shares. The largest holder is BlackRock, Inc. with a position worth $3.37B (0.05% of their portfolio). ARMISTICE CAPITAL, LLC opened a new position in the most recent quarter. 6 funds increased their holdings. 9 funds reduced their position.

Total Institutional Value

$8.84B

Total Shares Held

53,908,693

Institutional Holders

% of Shares Outstanding

35.7%

of 151.00M shares · SEC 2026-07-24

Days to Cover

4.8+17.5%

9.46M shares short · FINRA 2026-08-14

Tracked 13F institutions hold 35.7% of ILMN's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-07-24), not a live float.

This Quarter's Biggest Movers

Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.

Biggest Buyers

FMR LLC+192% shares~$523.3M WELLINGTON MANAGEMENT GROUP LLP+190% shares~$208.9M BlackRock, Inc.+1% shares~$30.1M ARMISTICE CAPITAL, LLCNew position~$16.0M STATE STREET CORP+1% shares~$13.6M

13F Institutional Holders

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AQR CAPITAL MANAGEMENT LLC

0.22% of book-11.0%

$623.22M

WELLINGTON MANAGEMENT GROUP LLP

ARK Investment Management LLC

1.19% of book-7.5%

$183.74M

RENAISSANCE TECHNOLOGIES LLC

0.20% of book-15.0%

$145.35M

Gotham Asset Management, LLC

0.15% of book+4.2%

$62.63M

#	Fund	Value↓	Shares	Portfolio %	Change
1	BlackRock, Inc.	$3.37B	19,191,398	0.05%	+0.9%
2	VANGUARD GROUP INC	$1.88B	14,355,380	0.03%	-1.9%
3	STATE STREET CORP	$1.14B	6,507,288	0.03%	+1.2%
4	FMR LLC	$795.35M	4,523,417	0.03%	+192.4%
5	AQR CAPITAL MANAGEMENT LLC	$623.22M	3,544,465	0.22%	-11.0%
6	WELLINGTON MANAGEMENT GROUP LLP	$318.77M	1,812,928	0.05%	+190.1%
7	BAILLIE GIFFORD & CO	$234.88M	1,335,846	0.21%	-13.0%
8	ARK Investment Management LLC	$183.74M	1,045,010	1.19%	-7.5%
9	RENAISSANCE TECHNOLOGIES LLC	$145.35M	826,642	0.20%	-15.0%
10	Gotham Asset Management, LLC	$62.63M	356,183	0.15%	+4.2%

Congress Trading

5 members · 17 disclosed trades in ILMN

Member	Type	Amount	Date
Gilbert Cisneros	Buy	$1,001 - $15,000	Feb 10, 2026
Lisa McClain	Sell	$1,001 - $15,000	Oct 31, 2025
Lisa McClain	Sell	$1,001 - $15,000	Oct 30, 2025
Lisa McClain	Buy	$1,001 - $15,000

Frequently Asked Questions

Which institutional investors own the most ILMN stock?

As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of ILMN with a position worth $3.37B, representing 0.05% of their portfolio. In total, 16 institutional investors hold ILMN with a combined value of $8.84B.

Are hedge funds buying or selling ILMN?

In the most recent quarter, 1 fund opened a new position in ILMN. Additionally, 6 increased their holdings and 9 reduced their positions.

What percentage of ILMN is owned by institutional investors?

Institutional investors hold $8.84B worth of ILMN stock across 16 positions. The largest institutional holder is BlackRock, Inc. with $3.37B in holdings.

What is a 13F filing and why does it matter for ILMN?

A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For ILMN, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.

Track ILMN institutional moves

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