Illumina, Inc.
IT ˙ BIT ˙ US4523271090
139,84 € 0,00 (0,00%)
2026-06-03
DEL PRIS
SecurityIT:1ILMN / Illumina, Inc.
InstitutionWeil Company, Inc.
Latest Disclosed Ownership20,503 shares
Latest Disclosed Value $ 2,527,184
Weil Company, Inc. reports 2.40% decrease in ownership of 1ILMN / Illumina, Inc.

On April 15, 2026 - Weil Company, Inc. filed a 13F-HR form disclosing ownership of 20,503 shares of Illumina, Inc. (IT:1ILMN) valued at $2,131,492 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 14, 2026 disclosing 21,008 shares of Illumina, Inc.. This represents a change in shares of -2.40% during the quarter. The current value of the position is $2,867,140 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)
2026-04-15 2026-03-31 13F ILLUMINA COM 452327109 20,503 -505 -2.40 2,527 -8.28 0.5675
2026-01-14 2025-12-31 13F ILLUMINA COM 452327109 21,008 -1,417 -6.32 2,755 29.40 0.6337
2025-11-07 2025-09-30 13F ILLUMINA COM 452327109 22,425 -1,516 -6.33 2,130 -6.79 0.5125
2025-08-07 2025-06-30 13F ILLUMINA COM 452327109 23,941 2,779 13.13 2,284 36.11 0.6024
2025-04-30 2025-03-31 13F ILLUMINA COM 452327109 21,162 3,642 20.79 1,679 -28.32 0.5010
2025-02-05 2024-12-31 13F ILLUMINA COM 452327109 17,520 -3,624 -17.14 2,341 -15.09 0.8100
2024-11-04 2024-09-30 13F ILLUMINA COM 452327109 21,144 1,952 10.17 2,757 37.64 0.9039
2024-08-05 2024-06-30 13F ILLUMINA COM 452327109 19,192 -5,266 -21.53 2,003 -40.35 0.7310
2024-05-03 2024-03-31 13F ILLUMINA COM 452327109 24,458 4,308 21.38 3,359 19.71 1.3325
2024-02-09 2023-12-31 13F ILLUMINA COM 452327109 20,150 -2,813 -12.25 2,806 -11.01 1.2322
2023-11-08 2023-09-30 13F ILLUMINA COM 452327109 22,963 8,539 59.20 3,152 16.57 1.5667
2023-08-08 2023-06-30 13F ILLUMINA COM 452327109 14,424 626 4.54 2,704 -15.71 1.2040
2023-05-08 2023-03-31 13F ILLUMINA COM 452327109 13,798 6,399 86.48 3,209 114.44 1.4556
2023-02-08 2022-12-31 13F ILLUMINA COM 452327109 7,399 2,682 56.86 1,496 66.22 0.6807
2022-11-09 2022-09-30 13F ILLUMINA COM 452327109 4,717 129 2.81 900 6.38 0.5526
2022-08-05 2022-06-30 13F ILLUMINA COM 452327109 4,588 154 3.47 846 -45.38 0.4759
2022-05-06 2022-03-31 13F ILLUMINA COM 452327109 4,434 272 6.54 1,549 -2.15 0.7784
2022-02-10 2021-12-31 13F ILLUMINA COM 452327109 4,162 49 1.19 1,583 -5.10 0.7384
2021-11-12 2021-09-30 13F ILLUMINA COM 452327109 4,113 62 1.53 1,668 -12.99 0.8678
2021-07-20 2021-06-30 13F ILLUMINA COM 452327109 4,051 51 1.27 1,917 24.80 0.9686
2021-05-12 2021-03-31 13F ILLUMINA COM 452327109 4,000 -606 -13.16 1,536 -9.86 0.8696
2021-02-10 2020-12-31 13F ILLUMINA COM 452327109 4,606 -173 -3.62 1,704 15.37 1.0202
2020-11-12 2020-09-30 13F ILLUMINA COM 452327109 4,779 288 6.41 1,477 -11.18 1.0764
2020-08-13 2020-06-30 13F ILLUMINA COM 452327109 4,491 45 1.01 1,663 36.99 1.4052
2020-05-15 2020-03-31 13F ILLUMINA COM 452327109 4,446 -212 -4.55 1,214 -21.42 1.1414
2020-02-13 2019-12-31 13F ILLUMINA COM 452327109 4,658 -500 -9.69 1,545 -1.53 1.1804
2019-11-13 2019-09-30 13F ILLUMINA COM 452327109 5,158 -2,825 -35.39 1,569 -46.61 1.1654
2019-08-12 2019-06-30 13F ILLUMINA COM 452327109 7,983 -1,805 -18.44 2,939 -3.35 2.3863
2019-05-13 2019-03-31 13F ILLUMINA COM 452327109 9,788 -1,665 -14.54 3,041 -11.47 2.5427
2019-02-12 2018-12-31 13F ILLUMINA COM 452327109 11,453 -761 -6.23 3,435 -15.41 3.1100
2018-11-07 2018-09-30 13F ILLUMINA COM 452327109 12,214 -280 -2.24 4,061 16.39 3.3510
2018-08-13 2018-06-30 13F ILLUMINA COM 452327109 12,494 -933 -6.95 3,489 9.92 2.9509
2018-05-11 2018-03-31 13F ILLUMINA COM 452327109 13,427 -136 -1.00 3,174 7.12 2.9705
2018-02-14 2017-12-31 13F ILLUMINA COM 452327109 13,563 13,563 2,963 2.7107
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.