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Illumina ILMN

Illumina is the 269th largest S&P 500 company by market cap, worth $40.7 billion. It joined the S&P 500 in the week of 25 Sep 2026. 10 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 8 other officers are on file. At 30 Jun 2026, BlackRock was its largest institutional holder, with 12.7% of the company.

CEO
Jacob Thaysen
Sector
Health Care
Sub-industry
Life Sciences Tools & Services
Headquarters
San Diego, California
Founded
1998
More
Wikipedia
Market cap
$40.7B
269th largest, 23 Oct 2026 close
Revenue
$4.3B
Fiscal year 2025
Price to sales
9.4
Market cap over revenue
Employees
8,650
10-K, 28 Dec 2025
Market cap per employee
$4.7M
Market cap over employees
Connections
7
S&P 500 companies sharing a director or officer

Largest institutional holders

Each fund group's share of Illumina. Where a company has several share classes, the share is of its total value.

13F filings for the quarter to 30 Jun 2026

These five hold 41.1% of Illumina.

Source: SEC Form 13F data sets, SEC XBRL shares outstanding 路 All holders

Board and officers

6 people here also hold roles at other S&P 500 companies.

Roles filed up to 30 Sep 2026

NameTitle
Directors (10)
Jacob ThaysenChief Executive OfficerLast filed 9 Mar 2026Chief Executive Officer
Caroline DorsaDirectorAlso at Duke EnergyDirector
Scott GottliebDirectorAlso at Pfizer and UnitedHealth GroupDirector
David P. KingDirectorDirector
Keith A. MeisterDirectorAlso at MGM ResortsDirector
Anna RichoDirectorAlso at ExelonDirector
Philip W. SchillerDirectorDirector
Susan E. SiegelDirectorAlso at Align TechnologyDirector
Daniel SkovronskyDirectorAlso at Eli LillyDirector
Scott B. UllemDirectorDirector
Officers (8)
Ankur DhingraSVP, Chief Financial OfficerLast filed 9 Mar 2026SVP, Chief Financial Officer
Steven BarnardSVP, Chief Technology OfficerLast filed 9 Sep 2026SVP, Chief Technology Officer
Julie Ann ColettiChief Legal OfficerLast filed 10 Sep 2026Chief Legal Officer
Scott D. EricksenVP, Chief Accounting OfficerLast filed 1 Jun 2026VP, Chief Accounting Officer
Patricia LeckmanSVP, Chief People OfficerLast filed 9 Jun 2026SVP, Chief People Officer
Kevin Carl PegelsChief of Global OperationsLast filed 9 Mar 2026Chief of Global Operations
Michael C. SullivanChief Commercial OfficerLast filed 7 Aug 2026Chief Commercial Officer
Christensen Jakob WedelSVP, Strategy/Corp DevelopmentLast filed 20 Aug 2026SVP, Strategy/Corp Development

Source: SEC insider filings (Forms 3, 4 and 5), Illumina's Form 4 filings 路 All directors and officers

Companies that share people with Illumina

Each person's title here, then at the other company.

  • Align Technology ALGN
    • Susan E. Siegel: Director here, Director there
  • Duke Energy DUK
    • Caroline Dorsa: Director here, Director there
  • Exelon EXC
    • Anna Richo: Director here, Director there
  • Eli Lilly LLY
    • Daniel Skovronsky: Director here, EVP, CS&PO & Pres. LRL there
  • MGM Resorts MGM
    • Keith A. Meister: Director here, Director there
  • Pfizer PFE
    • Scott Gottlieb: Director here, Director there
  • UnitedHealth Group UNH
    • Scott Gottlieb: Director here, Director there

Source: SEC insider filings 路 See the whole network

Illumina's market cap since December 2008

Weekly, up to 23 Oct 2026

Show equal percentage changes as equal steps.
201020122014201620182020202220242026$40.7B

Source: Yahoo Finance closing prices, SEC XBRL shares outstanding

Workforce

Headcount at 28 Dec 2025

Employees
8,650
As of December 28, 2025, our global workforce was comprised of approximately 8,600 full time employees, 50 part time employees, and 1,430 contingent workers.
Illumina Form 10-K

Source: Illumina Form 10-K

Insider trades

Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.

Trades from 30 Sep 2025 to 30 Sep 2026

Directors and officers sold $593 million of stock in 29 sales and bought $84,627 in 2 purchases in the 12 months to 30 Sep 2026.

DatePersonTitleTypeSharesValue
4 Sep 2026SaleKeith A. MeisterDirectorDirectorSale119,501$26M
3 Sep 2026SaleKeith A. MeisterDirectorDirectorSale75,951$17M
2 Sep 2026SaleKeith A. MeisterDirectorDirectorSale68,108$15M
27 Aug 2026SaleKeith A. MeisterDirectorDirectorSale138,379$32M
26 Aug 2026SaleKeith A. MeisterDirectorDirectorSale106,543$24M
25 Aug 2026SaleKeith A. MeisterDirectorDirectorSale131,019$30M
21 Aug 2026SaleKeith A. MeisterDirectorDirectorSale299,336$65M
20 Aug 2026SaleKeith A. MeisterDirectorDirectorSale285,238$61M
19 Aug 2026SaleKeith A. MeisterDirectorDirectorSale95,000$19M
18 Aug 2026SaleChristensen Jakob WedelSVP, Strategy/Corp DevelopmentSVP, Strategy/Corp DevelopmentSale1,033$198K

Showing 10 of 31 trades

Source: SEC insider transactions data sets, Illumina's Form 4 filings

Trades by members of Congress and officials

Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.

Trades from 20 Oct 2023 to 20 Oct 2026

6 people disclosed 11 purchases and 12 sales of Illumina stock since October 2023.

DateMember or officialTypeAmount
15 Apr 2026Donald J Trump (President)President 路 BoughtPurchase$1,001 to $15,000$1K to $15K
7 Apr 2026Donald J Trump (President)President 路 BoughtPurchase$1,001 to $15,000$1K to $15K
10 Feb 2026Gilbert Cisneros (House, D-CA)House, D-CA 路 BoughtPurchase$1,001 to $15,000$1K to $15K
29 Jan 2026Rohit Khanna (House, D-CA)House, D-CA 路 SoldSale$1,001 to $15,000$1K to $15K
31 Oct 2025Lisa McClain (House, R-MI)House, R-MI 路 SoldSale$1,001 to $15,000$1K to $15K
30 Oct 2025Lisa McClain (House, R-MI)House, R-MI 路 SoldSale$1,001 to $15,000$1K to $15K
30 Oct 2025Lisa McClain (House, R-MI)House, R-MI 路 BoughtPurchase$1,001 to $15,000$1K to $15K
9 Jun 2025Lisa McClain (House, R-MI)House, R-MI 路 BoughtPurchase$1,001 to $15,000$1K to $15K
1 Apr 2025Thomas H. Kean Jr (House, R-NJ)House, R-NJ 路 BoughtPurchase$1,001 to $15,000$1K to $15K
1 Apr 2025Thomas H. Kean Jr (House, R-NJ)House, R-NJ 路 BoughtPurchase$1,001 to $15,000$1K to $15K

Showing 10 of 23 trades

Source: House, Senate and OGE disclosures via the Congress trading monitor

WARN layoff notices

Notices filed under Illumina's own name. Subsidiaries that file under their own names are not included.

Notices from 26 Oct 2023 to 26 Oct 2026

Illumina filed 9 notices covering 305 workers since October 2023.

NoticePlaceWorkersEffective
23 Dec 2025San Diego, CA122 Dec 2025
12 Dec 2025San Diego, CA78 Dec 2025
4 Dec 2025San Diego, CA317 Feb 2026
21 Nov 2025San Diego, CA719 Jan 2026
7 Nov 2025San Diego, CA285 Jan 2026
13 Feb 2025San Diego, CA9614 Apr 2025
5 Sep 2024San Diego, CA36 Nov 2024
1 Aug 2024San Diego, CA491 Oct 2024
11 Jan 2024CA11112 Mar 2024

Source: State WARN notices via the US layoffs tracker