LOOMIS SAYLES & CO L P

Position in ILMN — Illumina, Inc.

CIK 312348 BOSTON, MA

Back to ILMN Full portfolio

Position in ILMN

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$362,751,344

-$184,411,451 QoQ

Shares Held

2,942,977

-29.5% QoQ

Ownership

1.95%

of shares outstanding

% of Portfolio

0.50%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 81.64365538704516.ToString("F0")% Shared 0.ToString("F0")% None 18.356344612954842.ToString("F0")%

Common Shares in ILMN Over Time

Shares Held

Position Value (USD)

Position in Diagnostics & Research

Healthcare · as of Mar 31, 2026

LOOMIS SAYLES & CO L P holds $1,412,201,549 across 13 Diagnostics & Research names. ILMN ranks #2 (25.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	TMO	Thermo Fisher Scientific Inc.	1,363,758	$670,327,969
2	ILMN	Illumina, Inc. This page	2,942,977	$362,751,344
3	MTD	Mettler Toledo International Inc/	107,446	$135,510,895
4	DHR	Danaher Corp /De/	556,853	$105,579,328
5	RDNT	RadNet, Inc.	686,215	$38,352,556
6	CRL	Charles River Laboratories International, Inc.	170,982	$29,494,394
7	NTRA	Natera, Inc.	142,019	$28,402,379
8	TWST	Twist Bioscience Corp	492,290	$23,393,620

All Filings in ILMN

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$362,751,344	2,942,977	-29.5%	Shares	Defined	2026-05-14
2025-12-31	$547,162,795	4,171,720	-2.7%	Shares	Defined	2026-02-12
2025-09-30	$407,177,036	4,287,428	+1.5%	Shares	Defined	2025-11-13
2025-06-30	$403,157,721	4,225,529	+1.9%	Shares	Defined	2025-08-13
2025-03-31	$329,039,799	4,147,212	-1.5%	Shares	Defined	2025-05-14
2024-12-31	$562,603,679	4,210,160	-3.1%	Shares	Defined	2025-02-12
2024-09-30	$566,336,722	4,342,740	-2.7%	Shares	Defined	2024-11-13
2024-06-30	$465,742,932	4,461,994	+1.1%	Shares	Defined	2024-08-13
2024-03-31	$589,391,079	4,412,277	-0.3%	Shares	Defined	2024-05-14
2023-12-31	$599,312,927	4,424,688	+10.4%	Shares	Defined	2024-02-13
2023-09-30	$535,226,184	4,007,957	+5.5%	Shares	Defined	2023-11-09
2023-06-30	$693,000,000	3,799,690	+11.4%	Shares	Defined	2023-08-11
2023-03-31	$771,795,152	3,411,762	+5.7%	Shares	Defined	2023-05-15
2022-12-31	$634,686,698	3,226,795	-10.3%	Shares	Defined	2023-02-10
2022-09-30	$667,818,874	3,598,290	-3.6%	Shares	Defined	2022-11-14
2022-06-30	$669,308,856	3,732,098	+5.4%	Shares	Defined	2022-08-05
2022-03-31	$1,203,444,173	3,540,757	-1.8%	Shares	Defined	2022-05-13
2021-12-31	$1,333,985,767	3,604,609	+12.7%	Shares	Defined	2022-02-14
2021-09-30	$1,261,979,107	3,198,428	-0.6%	Shares	Defined	2021-11-12
2021-06-30	$1,480,489,002	3,216,210	-4.3%	Shares	Defined	2021-08-13
2021-03-31	$1,255,804,769	3,361,369	-4.0%	Shares	Defined	2021-05-17
2020-12-31	$1,260,474,177	3,502,074	-0.0%	Shares	Defined	2021-02-12
2020-09-30	$1,053,105,087	3,502,627	+57.8%	Shares	Defined	2020-11-12
2020-06-30	$799,680,656	2,219,716	+89.4%	Shares	Defined	2020-08-14
2020-03-31	$311,418,928	1,172,154	—	Shares	Defined	2020-05-15
No filing history on record for this holder in this stock.