Illumina, Inc.
US ˙ NasdaqGS ˙ US4523271090

SecurityILMN / Illumina, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership561,619 shares
Latest Disclosed Value $ 69,226
Natixis Advisors, L.p. reports 86.56% increase in ownership of ILMN / Illumina, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 561,619 shares of Illumina, Inc. (US:ILMN) valued at $69,225,158 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 301,038 shares of Illumina, Inc.. This represents a change in shares of 86.56% during the quarter. The current value of the position is $95,997,536 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-13 2026-03-31 13F ILLUMINA COM 452327109 561,619 260,581 86.56 69 76.92 0.0963
2026-02-10 2025-12-31 13F ILLUMINA COM 452327109 301,038 -16,803 -5.29 39 30.00 0.0560
2025-11-13 2025-09-30 13F ILLUMINA COM 452327109 317,841 -1,379 -0.43 30 0.00 0.0440
2025-08-13 2025-06-30 13F ILLUMINA COM 452327109 319,220 23,451 7.93 30 30.43 0.0483
2025-05-08 2025-03-31 13F ILLUMINA COM 452327109 295,769 -29,267 -9.00 23 -46.51 0.0434
2025-02-10 2024-12-31 13F ILLUMINA COM 452327109 325,036 -46,575 -12.53 43 -10.42 0.0812
2024-11-06 2024-09-30 13F ILLUMINA COM 452327109 371,611 -1,368 -0.37 48 26.32 0.0945
2024-08-01 2024-06-30 13F ILLUMINA COM 452327109 372,979 -14,907 -3.84 39 -28.30 0.0846
2024-04-25 2024-03-31 13F ILLUMINA COM 452327109 387,886 73,642 23.43 53 23.26 0.1225
2024-02-06 2023-12-31 13F ILLUMINA COM 452327109 314,244 18,569 6.28 44 7.50 0.1152
2023-11-13 2023-09-30 13F ILLUMINA COM 452327109 295,675 -45,801 -13.41 41 -37.50 0.1241
2023-08-15 2023-06-30 13F ILLUMINA COM 452327109 341,476 15,845 4.87 64 -14.67 0.1977
2023-05-11 2023-03-31 13F ILLUMINA COM 452327109 325,631 45,586 16.28 76 33.93 0.2606
2023-01-27 2022-12-31 13F ILLUMINA COM 452327109 280,045 4,222 1.53 57 -99.89 0.2141
2022-11-14 2022-09-30 13F ILLUMINA COM 452327109 275,823 10,924 4.12 52,623 7.75 0.2226
2022-08-12 2022-06-30 13F ILLUMINA COM 452327109 264,899 12,522 4.96 48,836 -44.62 0.2148
2022-05-12 2022-03-31 13F ILLUMINA COM 452327109 252,377 -2,044 -0.80 88,181 -8.90 0.3363
2022-02-08 2021-12-31 13F ILLUMINA COM 452327109 254,421 -51,114 -16.73 96,792 -21.90 0.3696
2021-11-15 2021-09-30 13F ILLUMINA COM 452327109 305,535 123,654 67.99 123,929 43.99 0.5097
2021-08-12 2021-06-30 13F ILLUMINA COM 452327109 181,881 -851 -0.47 86,068 22.64 0.4017
2021-05-05 2021-03-31 13F ILLUMINA COM 452327109 182,732 2,935 1.63 70,180 5.49 0.3663
2021-02-12 2020-12-31 13F ILLUMINA COM 452327109 179,797 -1,600 -0.88 66,525 18.65 0.3832
2020-11-12 2020-09-30 13F ILLUMINA COM 452327109 181,397 31,054 20.66 56,067 0.70 0.3528
2020-08-11 2020-06-30 13F ILLUMINA COM 452327109 150,343 71,853 91.54 55,680 159.73 0.3695
2020-04-27 2020-03-31 13F ILLUMINA COM 452327109 78,490 53,487 213.92 21,438 158.48 0.1747
2020-02-10 2019-12-31 13F ILLUMINA IN COM 452327109 25,003 4,574 22.39 8,294 33.45 0.0585
2019-11-12 2019-09-30 13F ILLUMINA COM 452327109 20,429 -834 -3.92 6,215 -20.61 0.0493
2019-08-12 2019-06-30 13F ILLUMINA COM 452327109 21,263 3,445 19.33 7,828 41.40 0.0639
2019-05-15 2019-03-31 13F/A-1 ILLUMINA COM 452327109 17,818 2,124 13.53 5,536 17.61 0.0485
2019-05-15 2019-03-31 13F ILLUMINA COM 452327109 17,818 2,124 5,536
2019-02-13 2018-12-31 13F/A-1 ILLUMINA COM 452327109 15,694 3,645 30.25 4,707 6.42 0.0465
2019-02-13 2018-12-31 13F ILLUMINA COM 452327109 15,694 3,645 4,707
2018-11-13 2018-09-30 13F ILLUMINA COM 452327109 12,049 495 4.28 4,423 37.06 0.0389
2018-08-14 2018-06-30 13F/A-1 ILLUMINA COM 452327109 11,554 -333 -2.80 3,227 14.84 0.0308
2018-08-14 2018-06-30 13F ILLUMINA COM 452327109 11,554 3,227
2018-05-10 2018-03-31 13F ILLUMINA COM 452327109 11,887 1,504 14.49 2,810 23.84 0.0277
2018-02-14 2017-12-31 13F ILLUMINA COM 452327109 10,383 10,383 2,269 0.0231
2016-02-12 2015-12-31 13F ILLUMINA COM 452327109 0 0 0 0.0000
2015-11-12 2015-09-30 13F ILLUMINA COM 452327109 0 0 0 0.0000
2015-05-15 2015-03-31 13F ILLUMINA COM 452327109 0 -11,948 -100.00 0 -100.00
2015-02-05 2014-12-31 13F ILLUMINA COM 452327109 11,948 -34 -0.28 2,205 12.27 0.0413
2014-11-03 2014-09-30 13F ILLUMINA COM 452327109 11,982 2,509 26.49 1,964 16.14 0.0394
2014-08-13 2014-06-30 13F ILLUMINA COM 452327109 9,473 3,833 67.96 1,691 101.79 0.0242
2014-05-13 2014-03-31 13F ILLUMINA COM 452327109 5,640 377 7.16 838 97.18 0.0129
2013-10-30 2013-09-30 13F ILLUMINA COM 452327109 5,263 -660 -11.14 425 -4.06 0.0078
2013-07-19 2013-06-30 13F ILLUMINA COM 452327109 5,923 5,923 443 0.0088
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.