How many institutional investors hold ILMN?

5 tracked institutional investors disclosed a position in ILMN (ILLUMINA INC) in their most recent 13F filing.

Who is the largest institutional holder of ILMN?

Ken Griffin, Citadel Advisors, holds the largest disclosed position in ILMN, valued at $159M.

Where does this ILMN ownership data come from?

SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.

ILMN — ILLUMINA INC

Name: ILLUMINA INC (ILMN) — Institutional Ownership
Creator: InvestorLens
License: https://www.sec.gov/about/website-policies

Public company

For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About ILLUMINA INC (ILMN)

ILLUMINA INC (ILMN) appears in the most recent 13F filings of 5 tracked institutional investors. The largest disclosed position is held by Ken Griffin (Citadel Advisors), valued at $159M. Across recent filings, tracked investors recorded 2 new positions, 1 increased, 2 reduced, and 0 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in ILMN

/100

Institutional Accumulation

Added / Increased3

Reduced2

Exited0

BearishBullish

Crowded Trade Score™

How many top investors track ILMN

/100

Emerging Interest

5investors

A small number of top investors own this.

UndiscoveredCrowded

151015+

ILMN Ownership Composition

How ILLUMINA INC is held across tracked investor types, based on reported 13F positions.

Dominant Type

Growth Funds

68% of tracked value

Institutions

tracked investors

Total Reported

$206.2M

combined 13F value

Growth Funds67.5%
Other27.9%
Hedge Funds4.6%

Growth Funds(1)

67.5%

Other(3)

27.9%

Hedge Funds(1)

4.6%

Tracked investors reporting ILMN

Investor	Firm	Shares	Market value	% of portfolio	As of
Ken Griffin	Citadel Advisors	215.5K	$26.6M	0.00%	Mar 31, 2026
Cathie Wood	ARK Investment Management	1.1M	$139.2M	1.08%	Mar 31, 2026
Izzy Englander	Millennium Management	238.2K	$29.4M	0.01%	Mar 31, 2026
Steve Cohen	Point72 Asset Management	76.7K	$9.5M	0.01%	Mar 31, 2026
Ray Dalio	Bridgewater Associates	12.8K	$1.6M	0.01%	Mar 31, 2026

Ken GriffinMar 31, 2026
Citadel Advisors
Shares
215.5K
Value
$26.6M
% Portfolio
0.00%
Cathie WoodMar 31, 2026
ARK Investment Management
Shares
1.1M
Value
$139.2M
% Portfolio
1.08%
Izzy EnglanderMar 31, 2026
Millennium Management
Shares
238.2K
Value
$29.4M
% Portfolio
0.01%
Steve CohenMar 31, 2026
Point72 Asset Management
Shares
76.7K
Value
$9.5M
% Portfolio
0.01%
Ray DalioMar 31, 2026
Bridgewater Associates
Shares
12.8K
Value
$1.6M
% Portfolio
0.01%

Recent activity

Investor	Action	Δ %	Current value	Filing date
Ray Dalio	New	—	$1.6M	May 15, 2026
Cathie Wood	Reduced	-26.68%	$139.2M	May 12, 2026
Ken Griffin	Reduced	-36.65%	$139.1K	Feb 17, 2026
Cathie Wood	Increased	4.94%	$202K	Feb 11, 2026
Cathie Wood	New	—	$139.4M	Nov 12, 2025

Ray Dalio
New
$1.6MMay 15, 2026
Cathie Wood
Reduced
$139.2M(-26.68%)May 12, 2026
Ken Griffin
Reduced
$139.1K(-36.65%)Feb 17, 2026
Cathie Wood
Increased
$202K(4.94%)Feb 11, 2026
Cathie Wood
New
$139.4MNov 12, 2025

Frequently asked questions

How many institutional investors hold ILMN?: 5 tracked institutional investors disclosed a position in ILMN (ILLUMINA INC) in their most recent 13F filing.
Who is the largest institutional holder of ILMN?: Ken Griffin, Citadel Advisors, holds the largest disclosed position in ILMN, valued at $159M.
Did institutional ownership of ILMN increase or decrease?: Across recent 13F filings, tracked investors recorded 2 new positions, 1 increased, 2 reduced, and 0 fully exited ILMN.
Where does this ILMN ownership data come from?: SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.