Guardant Health, Inc.
US ˙ NasdaqGS ˙ US40131M1099

SecurityGH / Guardant Health, Inc.
InstitutionCandriam Luxembourg S.C.A.
Latest Disclosed Ownership89,216 shares
Latest Disclosed Value $ 8,240,882
Candriam Luxembourg S.C.A. reports 39.88% decrease in ownership of GH / Guardant Health, Inc.

On April 30, 2026 - Candriam Luxembourg S.C.A. filed a 13F-HR form disclosing ownership of 89,216 shares of Guardant Health, Inc. (US:GH) valued at $8,240,882 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on April 30, 2026 disclosing 148,406 shares of Guardant Health, Inc.. This represents a change in shares of -39.88% during the quarter. The current value of the position is $11,206,422 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)
2026-04-30 2026-03-31 13F GUARDANT HEALTH COM 40131M109 89,216 -59,190 -39.88 8,241 -45.64 0.0428
2026-04-30 2025-12-31 13F/A-1 GUARDANT HEALTH COM 40131M109 148,406 -23,347 -13.59 15,159 41.25 0.0756
2026-02-13 2025-12-31 13F GUARDANT HEALTH COM 40131M109 148,406 -23,347 15,159 0.0755
2025-11-06 2025-09-30 13F GUARDANT HEALTH COM 40131M109 171,753 1,231 0.72 10,731 20.93 0.0562
2025-08-08 2025-06-30 13F GUARDANT HEALTH COM 40131M109 170,522 -2,352 -1.36 8,874 20.51 0.0512
2025-05-14 2025-03-31 13F GUARDANT HEALTH COM 40131M109 172,874 -179,618 -50.96 7,364 -31.61 0.0461
2025-02-07 2024-12-31 13F GUARDANT HEALTH COM 40131M109 352,492 -13,653 -3.73 10,769 28.22 0.0620
2024-11-13 2024-09-30 13F GUARDANT HEALTH COM 40131M109 366,145 0 0.00 8,399 -20.57 0.0483
2024-08-05 2024-06-30 13F GUARDANT HEALTH COM 40131M109 366,145 -99,992 -21.45 10,574 9.95 0.0641
2024-05-06 2024-03-31 13F GUARDANT HEALTH COM 40131M109 466,137 0 0.00 9,616 -23.74 0.0615
2024-02-14 2023-12-31 13F GUARDANT HEALTH COM 40131M109 466,137 -25,000 -5.09 12,610 -13.38 0.0870
2023-11-13 2023-09-30 13F GUARDANT HEALTH COM 40131M109 491,137 -68,225 -12.20 14,557 -27.31 0.1032
2023-08-08 2023-06-30 13F GUARDANT HEALTH COM 40131M109 559,362 38,180 7.33 20,025 78.09 0.1447
2023-05-12 2023-03-31 13F GUARDANT HEALTH COM 40131M109 521,182 61,538 13.39 11,244 -10.06 0.0780
2023-02-13 2022-12-31 13F GUARDANT HEALTH COM 40131M109 459,644 270,594 143.13 12,502 22.84 0.0843
2022-11-10 2022-09-30 13F GUARDANT HEALTH COM 40131M109 189,050 39,469 26.39 10,177 68.69 0.0717
2022-08-03 2022-06-30 13F GUARDANT HEALTH COM 40131M109 149,581 10,000 7.16 6,033 -34.75 0.0497
2022-05-13 2022-03-31 13F GUARDANT HEALTH COM 40131M109 139,581 -7,708 -5.23 9,246 -37.24 0.0629
2022-02-10 2021-12-31 13F GUARDANT HEALTH COM 40131M109 147,289 22,917 18.43 14,732 -5.24 0.0940
2021-11-09 2021-09-30 13F GUARDANT HEALTH COM 40131M109 124,372 26,676 27.31 15,547 28.14 0.1057
2021-07-20 2021-06-30 13F GUARDANT HEALTH COM 40131M109 97,696 9,344 10.58 12,133 10.97 0.0830
2021-04-29 2021-03-31 13F GUARDANT HEALTH COM 40131M109 88,352 0 0.00 10,934 -3.94 0.0910
2021-01-22 2020-12-31 13F GUARDANT HEALTH COM 40131M109 88,352 -3,986 -4.32 11,383 10.29 0.0901
2020-10-19 2020-09-30 13F GUARDANT HEALTH COM 40131M109 92,338 13,751 17.50 10,321 61.87 0.0970
2020-07-23 2020-06-30 13F GUARDANT HEALTH COM 40131M109 78,587 20,829 36.06 6,376 44.48 0.0673
2020-05-26 2020-03-31 13F GUARDANT HEALTH COM 40131M109 57,758 6 0.01 4,413 -2.24 0.0489
2020-02-05 2019-12-31 13F/A-1 GUARDANT HEALTH COM 40131M109 57,752 47,552 466.20 4,514 593.39 0.0484
2020-01-21 2019-12-31 13F GUARDANT HEALTH COM 40131M109 57,752 47,552 5 53,625.0536
2020-02-05 2019-09-30 13F/A-1 GUARDANT HEALTH COM 40131M109 10,200 -4,590 -31.03 651 -88.13 0.0086
2019-10-21 2019-09-30 13F GUARDANT HEALTH COM 40131M109 10,200 -4,590 1 12,567.5506
2019-08-01 2019-06-30 13F GUARDANT HEALTH COM 40131M109 14,790 8,590 138.55 5,485 1,052.31 0.0684
2019-05-02 2019-03-31 13F GUARDANT HEALTH COM 40131M109 6,200 6,200 476 0.0061
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.