가던트 헬스(주)
MX ˙ BMV ˙ US40131M1099
SecurityMX:GH / Guardant Health, Inc.
InstitutionAristotle Atlantic Partners, Llc
Latest Disclosed Ownership445,530 shares
Latest Disclosed Value $ 41,153,606
Aristotle Atlantic Partners, Llc reports 9.88% decrease in ownership of GH / Guardant Health, Inc.

On May 15, 2026 - Aristotle Atlantic Partners, Llc filed a 13F-HR form disclosing ownership of 445,530 shares of Guardant Health, Inc. (MX:GH) valued at $41,153,606 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 494,386 shares of Guardant Health, Inc.. This represents a change in shares of -9.88% during the quarter.

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)
2026-05-15 2026-03-31 13F GUARDANT HEALTH COM 40131M109 445,530 -48,856 -9.88 41,154 -18.50 1.0887
2026-02-17 2025-12-31 13F GUARDANT HEALTH COM 40131M109 494,386 -429,348 -46.48 50,497 -12.51 2.3102
2025-11-14 2025-09-30 13F GUARDANT HEALTH COM 40131M109 923,734 -8,222 -0.88 57,715 19.00 1.6743
2025-08-14 2025-06-30 13F GUARDANT HEALTH COM 40131M109 931,956 -32,565 -3.38 48,499 18.03 1.4751
2025-05-15 2025-03-31 13F GUARDANT HEALTH COM 40131M109 964,521 112,526 13.21 41,089 57.86 1.3865
2025-02-14 2024-12-31 13F GUARDANT HEALTH COM 40131M109 851,995 -41,513 -4.65 26,028 26.98 0.8184
2024-11-14 2024-09-30 13F GUARDANT HEALTH COM 40131M109 893,508 144,311 19.26 20,497 -5.26 0.6373
2024-08-14 2024-06-30 13F GUARDANT HEALTH COM 40131M109 749,197 -57,698 -7.15 21,637 29.98 0.7011
2024-05-15 2024-03-31 13F GUARDANT HEALTH COM 40131M109 806,895 -30,050 -3.59 16,646 -26.47 0.5433
2024-02-14 2023-12-31 13F GUARDANT HEALTH COM 40131M109 836,945 2,849 0.34 22,639 -8.43 0.7967
2023-11-14 2023-09-30 13F GUARDANT HEALTH COM 40131M109 834,096 -23,472 -2.74 24,723 -19.47 0.9899
2023-08-14 2023-06-30 13F GUARDANT HEALTH COM 40131M109 857,568 237,074 38.21 30,701 111.08 1.1562
2023-05-15 2023-03-31 13F GUARDANT HEALTH COM 40131M109 620,494 1,723 0.28 14,544 -13.58 0.7480
2023-02-14 2022-12-31 13F GUARDANT HEALTH COM 40131M109 618,771 237,627 62.35 16,831 -17.97 0.9427
2022-11-14 2022-09-30 13F GUARDANT HEALTH COM 40131M109 381,144 172,050 82.28 20,517 143.24 1.2481
2022-08-15 2022-06-30 13F GUARDANT HEALTH COM 40131M109 209,094 3,894 1.90 8,435 -37.95 0.6488
2022-05-16 2022-03-31 13F GUARDANT HEALTH COM 40131M109 205,200 2,847 1.41 13,593 -32.84 0.8412
2022-02-14 2021-12-31 13F GUARDANT HEALTH COM 40131M109 202,353 7,423 3.81 20,239 -16.94 1.1749
2021-11-15 2021-09-30 13F GUARDANT HEALTH COM 40131M109 194,930 2,223 1.15 24,368 1.82 1.6124
2021-08-16 2021-06-30 13F GUARDANT HEALTH COM 40131M109 192,707 1,839 0.96 23,932 -17.86 1.5786
2021-05-17 2021-03-31 13F GUARDANT HEALTH COM 40131M109 190,868 3,462 1.85 29,136 20.63 2.1307
2021-02-16 2020-12-31 13F GUARDANT HEALTH COM 40131M109 187,406 2,749 1.49 24,153 17.01 1.8639
2020-11-16 2020-09-30 13F GUARDANT HEALTH COM 40131M109 184,657 1,560 0.85 20,641 38.95 1.8182
2020-08-14 2020-06-30 13F GUARDANT HEALTH COM 40131M109 183,097 35,855 24.35 14,855 44.96 1.4269
2020-05-14 2020-03-31 13F GUARDANT HEALTH COM 40131M109 147,242 4,058 2.83 10,248 -8.40 1.5652
2020-02-13 2019-12-31 13F GUARDANT HEALTH COM 40131M109 143,184 100,167 232.85 11,188 307.43 1.4288
2019-11-14 2019-09-30 13F GUARDANT HEALTH COM 40131M109 43,017 1,011 2.41 2,746 -24.29 0.7908
2019-08-13 2019-06-30 13F GUARDANT HEALTH COM 40131M109 42,006 1,851 4.61 3,627 17.76 1.0545
2019-05-15 2019-03-31 13F GUARDANT HEALTH COM 40131M109 40,155 40,155 3,080 0.9359
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.