Illumina ILMN Institutional Ownership

NASDAQ ILMN

$278.17 +13.60 (+5.14%)

At close: Oct 9, 2026 · 4:00 PM EDT

As of the 13F quarter ended Jun 30, 2026, 931 institutions reported holding Illumina (ILMN) shares. Versus the prior quarter, the holder count rose by 86 and shares held were up 0.35%. The largest holder is BlackRock, Inc. with 19.19Mn shares (12.71% of outstanding).

Updated Oct 10, 2026 Illumina (ILMN) stock price and overview

Institutions by Trading Activity

931 Institutions

Increased 462 49.6%

Unchanged 141 15.1%

Reduced 328 35.2%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

156.74Mn

of 151.00Mn outstanding

▲+0.35% QoQ

Shares Outstanding

151.00Mn

Institutional Investors

931

filed 13F for Jun 2026

▲+86 vs prior quarter

Net Shares Added (QoQ)

+546.01K

accumulated since last quarter

Value of Holdings

$43.60Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 10, 2026

Illumina, Inc. (NASDAQ:ILMN) appeared in the 13F filings of 931 institutional investors for the quarter ended June 30, 2026.

Total shares held in Illumina rose 0.35% versus Q1 2026, while the number of holders rose 25.30% versus Q2 2025.
Of the 931 holders, 462 added to their positions, 328 reduced their stakes and 141 left their positions unchanged in Q2 2026.
The aggregate institutional position in Illumina was 156.74Mn shares at the end of Q2 2026, up 546.01K from the prior quarter and up 2.76Mn from a year earlier.
BlackRock, Inc. was the top holder of Illumina as of June 30, 2026, with 19.19Mn shares.
Holders that added the most shares of Illumina in Q2 2026 were FMR LLC (+2.98Mn shares), Primecap Management Co (+1.45Mn shares), Wellington Management Group LLP (+1.19Mn shares), Ascentis Wealth Management, LLC (+740.23K shares) and Massachusetts Financial Services Co (+720.49K shares).
The largest position reductions in ILMN for Q2 2026 were by Sessa Capital IM, L.P. (-2.16Mn shares), Southpoint Capital Advisors LP (-1.7Mn shares), Loomis Sayles & Co L.P. (-1.01Mn shares), Corvex Management LP (-999.06K shares) and Invesco Ltd. (-663.36K shares).
According to Business Quant data, the leading holders of ILMN for Q2 2026 were BlackRock, Inc. (19.19Mn shares), Capital World Investors (15.43Mn shares), Vanguard Portfolio Management LLC (6.63Mn shares), Vanguard Capital Management LLC (6.59Mn shares), State Street Corp (6.51Mn shares), WCM Investment Management, LLC (6.21Mn shares), FMR LLC (4.52Mn shares), AQR Capital Management LLC (3.54Mn shares), Primecap Management Co (3.51Mn shares) and Geode Capital Management, LLC (2.95Mn shares).

Form 13F Holdings

931 Institutional Holders

Report period 30 Jun, 2026

Total shares held 156.74Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	19,191,398	12.71%	▲167,808	+0.88%	$3.37Bn
2	Capital World Investors	0001422849	15,425,298	10.22%	▼124,662	-0.80%	$2.71Bn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	6,627,157	4.39%	▼196,497	-2.88%	$1.17Bn
4	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	6,587,534	4.36%	▼7,302	-0.11%	$1.16Bn
5	State Street Corp	0000093751	6,507,288	4.31%	▲77,944	+1.21%	$1.14Bn
6	WCM INVESTMENT MANAGEMENT, LLC	0001061186	6,206,701	4.11%	▲283,528	+4.79%	$1.12Bn
7	FMR LLC	0000315066	4,523,417	3.00%	▲2,976,556	+192.43%	$795.35Mn
8	AQR CAPITAL MANAGEMENT LLC	0001167557	3,544,465	2.35%	▼436,615	-10.97%	$623.22Mn
9	PRIMECAP MANAGEMENT CO/CA/	0000763212	3,514,649	2.33%	▲1,447,350	+70.01%	$617.98Mn
10	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,946,669	1.95%	▼104,610	-3.43%	$516.72Mn
11	Corvex Management LP	0001535472	2,830,552	1.87%	▼999,056	-26.09%	$497.70Mn
12	Jupiter Topco LLC	0002146052	2,039,763	1.35%	▲2,039,763	0.00%	$358.65Mn
13	Invesco Ltd.	0000914208	1,994,241	1.32%	▼663,361	-24.96%	$350.65Mn
14	LOOMIS SAYLES & CO L P	0000312348	1,931,948	1.28%	▼1,011,029	-34.35%	$339.69Mn
15	WELLINGTON MANAGEMENT GROUP LLP	0000902219	1,812,928	1.20%	▲1,188,004	+190.10%	$318.77Mn
16	MASSACHUSETTS FINANCIAL SERVICES CO /MA/	0000912938	1,744,209	1.16%	▲720,487	+70.38%	$308.48Mn
17	Bank of New York Mellon Corp	0001390777	1,671,192	1.11%	▲171,176	+11.41%	$293.85Mn
18	Morgan Stanley	0000895421	1,654,664	1.10%	▼188,948	-10.25%	$290.94Mn
19	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0000861177	1,502,137	0.99%	▼61,102	-3.91%	$264.12Mn
20	Bank Of America Corp /De/	0000070858	1,455,287	0.96%	▼61,342	-4.04%	$255.88Mn

Showing 1 to 20 of 931 holders