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ILMN in the 13F filings

Illumina Inc · CUSIP 452327109

Sector · Medical devices and instrumentsTheme · Healthcare: biopharma and medtech· L3VLUP-defined
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 8 May 2026
Managers listing it
28
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 10 listed it in both
Shares listed
34,209,499
combined, among listed positions
Reported value
$4.2bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 15 buyers (opened or added shares) and 19 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -3,564,580.

Managers listing ILMN in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

28 of 28 holders

ActionFiling
Capital World Investors15,549,960$1.9bn0.26%Trimmed-4,551,21313 May 2026 (the filing on sec.gov)
AQR Capital Management LLC3,981,080$491m0.22%Trimmed-445,04615 May 2026 (the filing on sec.gov)
Invesco Ltd2,657,602$328munder 0.1%Trimmed-90,38412 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd2,100,638$259m0.12%Added+29,09418 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)1,546,861$191munder 0.1%Trimmed-147,49315 May 2026 (the filing on sec.gov)
Baillie Gifford & Co1,535,106$189m0.19%Trimmed-91,6708 May 2026 (the filing on sec.gov)
AllianceBernstein LP1,091,559$143munder 0.1%Added+854,74715 May 2026 (the filing on sec.gov)
ARK Investment Management LLC1,129,459$139m1.08%Trimmed-410,89212 May 2026 (the filing on sec.gov)
MFS Investment Management1,023,722$127munder 0.1%Added+463,09014 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC972,642$120m0.19%Trimmed-162,00014 May 2026 (the filing on sec.gov)
Wellington Management Group LLP624,924$77munder 0.1%Added+494,04815 May 2026 (the filing on sec.gov)
Marshall Wace LLP504,363$62m0.06%Added+357,88515 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP399,336$49munder 0.1%Trimmed-97,45714 May 2026 (the filing on sec.gov)
Woodline Partners LP262,609$32m0.12%Added+260,30915 May 2026 (the filing on sec.gov)
Millennium Management LLC204,782$25munder 0.1%Added+169,43115 May 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC178,851$22m0.16%Newnew15 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc149,197$18munder 0.1%Added+15,28015 May 2026 (the filing on sec.gov)
Two Sigma Investments LP73,717$9.1munder 0.1%Added+19,40015 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC71,062$8.8munder 0.1%Added+45827 Oct 2026 (the filing on sec.gov)
Point72 Asset Management LP53,700$6.6munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.47,575$5.9munder 0.1%Added+24,15615 May 2026 (the filing on sec.gov)
Verition Fund Management LLC18,114$2.2munder 0.1%Trimmed-24,57515 May 2026 (the filing on sec.gov)
Bridgewater Associates LP12,751$1.6munder 0.1%Newnew15 May 2026 (the filing on sec.gov)
Jane Street Group LLC8,224$1.0munder 0.1%Trimmed-3,94112 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP5,827$718kunder 0.1%Trimmed-174,61015 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (6)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
22 in Q3 2024 to 13 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
ILMN by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201316$4.0bnn.a.n.a.
Q3 201315$4.5bnn.a.n.a.
Q4 201319$6.8bnn.a.n.a.
Q1 201424$8.9bnn.a.n.a.
Q2 201416$9.2bnn.a.n.a.
Q3 201424$8.4bnn.a.n.a.
Q4 201423$8.8bnn.a.n.a.
Q1 201521$9.1bnn.a.n.a.
Q2 201522$11.1bnn.a.n.a.
Q3 201521$8.7bnn.a.n.a.
Q4 201515$9.4bnn.a.n.a.
Q1 201612$6.9bnn.a.n.a.
Q2 201612$6.3bnn.a.n.a.
Q3 201615$8.3bnn.a.n.a.
Q4 201614$6.2bnn.a.n.a.
Q1 201715$8.1bnn.a.n.a.
Q2 201721$7.7bnn.a.n.a.
Q3 201721$8.4bnn.a.n.a.
Q4 201717$8.7bnn.a.n.a.
Q1 201819$9.1bnn.a.n.a.
Q2 201825$10.9bnn.a.n.a.
Q3 201826$11.8bnn.a.n.a.
Q4 201825$9.2bnn.a.n.a.
Q1 201921$9.6bnn.a.n.a.
Q2 201923$12.0bnn.a.n.a.
Q3 201921$11.2bnn.a.n.a.
Q4 201919$11.7bnn.a.n.a.
Q1 202020$8.8bnn.a.n.a.
Q2 202019$11.9bnn.a.n.a.
Q3 202019$9.2bnn.a.n.a.
Q4 202022$11.9bnn.a.n.a.
Q1 202127$13.7bnn.a.n.a.
Q2 202123$16.3bnn.a.n.a.
Q3 202131$14.7bnn.a.n.a.
Q4 202122$13.3bnn.a.n.a.
Q1 202220$12.1bnn.a.n.a.
Q2 202221$6.3bnn.a.n.a.
Q3 202218$7.3bnn.a.n.a.
Q4 202213$7.7bnn.a.n.a.
Q1 202322$8.9bnn.a.n.a.
Q2 202315$6.8bnn.a.n.a.
Q3 202314$4.6bnn.a.n.a.
Q4 202321$3.6bn129
Q1 202416$3.4bn811
Q2 202422$2.3bn184
Q3 202422$2.9bn138
Q4 202416$4.1bn514
Q1 202511$2.3bn84
Q2 20258$2.5bn35
Q3 20259$2.9bn73
Q4 202510$4.6bn2114
Q1 202613$3.9bn1519
Q2 202613$5.9bn1518

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

ILMN and LLY →ILMN and JNJ →ILMN and VRTX →Choose a stock to compare with ILMN →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own ILMN, latest filings →Back to the 13F Explorer →