Illumina ILMN Institutional Ownership

NASDAQ ILMN

$227.74 +2.90 (+1.29%)

As of: Aug 27, 2026 · 3:59 PM EDT

Institutions by Trading Activity

929 Institutions

Increased 462 49.7%

Unchanged 141 15.2%

Reduced 326 35.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

104.18%

▲+0.56 pp QoQ

Shares Held by Institutions

157.31Mn

of 151.00Mn outstanding

▲+3.65% QoQ

Shares Outstanding

151.00Mn

-6.31Mn held outside 13F filers

Institutional Investors

929

filed 13F for Jun 2026

▲+85 vs prior quarter

Net Shares Added (QoQ)

+5.54Mn

accumulated since last quarter

Value of Holdings

$35.37Bn

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

Quarter ending 30 Jun, 2026

Illumina, Inc. (NASDAQ:ILMN) appears in 831 institutional 13F filings for the quarter ending March 2026.

Collectively, these holders controlled 103.4% of Illumina's outstanding shares in March 2026, up from 102.7% in December 2025.
Their total shares held in ILMN increased 11.73% from the prior quarter, while the number of investors in Illumina increased 14.46% year over year.
Among the 831 funds, 384 bought more Illumina shares, 311 sold down, and 136 held their ground.
In total, institutional investors held 158.14Mn shares in Illumina as of March 2026, up by 16.6Mn shares quarter on quarter, and down 735.5K shares year over year.
BlackRock, Inc. holds the largest position in ILMN at 19.02Mn shares as of March 31, 2026, or 12.43% of shares outstanding.
The biggest buyers of Illumina for the quarter ending March 2026 included VANGUARD PORTFOLIO MANAGEMENT LLC (6.82Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.59Mn), Janus Henderson Group Plc (2.13Mn), WCM INVESTMENT MANAGEMENT, LLC (1.85Mn), VANGUARD FIDUCIARY TRUST CO (944.16K).
Leading sellers of Illumina shares for the quarter ending March 2026 were Capital World Investors (4.55Mn), Swedbank AB (1.63Mn), LOOMIS SAYLES & CO L P (1.23Mn), GUARDCAP ASSET MANAGEMENT Ltd (689.13K), Morgan Stanley (685.43K).
According to Business Quant data, leading holders of ILMN for March 2026 are BlackRock, Inc. (19.02Mn), Capital World Investors (15.55Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (6.82Mn), VANGUARD CAPITAL MANAGEMENT LLC (6.59Mn), State Street Corp (6.43Mn), WCM INVESTMENT MANAGEMENT, LLC (5.92Mn), Janus Henderson Group Plc (4.2Mn), AQR CAPITAL MANAGEMENT LLC (3.98Mn), Corvex Management LP (3.83Mn), Sessa Capital IM, L.P. (3.28Mn).

Form 13F Holdings

929 Institutional Holders

Report period 30 Jun, 2026

Total shares held 157.31Mn

Of outstanding 104.18%

#	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 929 holders