Guardant Health, Inc.
US ˙ NasdaqGS ˙ US40131M1099

SecurityGH / Guardant Health, Inc.
InstitutionCerity Partners LLC
Latest Disclosed Ownership109,250 shares
Latest Disclosed Value $ 10,091,430
Cerity Partners LLC reports 7.41% decrease in ownership of GH / Guardant Health, Inc.

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 109,250 shares of Guardant Health, Inc. (US:GH) valued at $10,091,422 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 117,996 shares of Guardant Health, Inc.. This represents a change in shares of -7.41% during the quarter. The current value of the position is $13,878,028 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)
2026-05-15 2026-03-31 13F GUARDANT HEALTH COM 40131M109 109,250 -8,746 -7.41 10,091 -16.27 0.0071
2026-02-11 2025-12-31 13F GUARDANT HEALTH COM 40131M109 117,996 -12,981 -9.91 12,052 47.28 0.0176
2025-10-22 2025-09-30 13F GUARDANT HEALTH COM 40131M109 130,977 -13,404 -9.28 8,183 8.92 0.0133
2025-08-13 2025-06-30 13F GUARDANT HEALTH Stock 40131M109 144,381 -1,094 -0.75 7,514 21.24 0.0134
2025-04-30 2025-03-31 13F GUARDANT HEALTH Stock 40131M109 145,475 8,725 6.38 6,197 89.80 0.0126
2025-02-13 2024-12-31 13F GUARDANT HEALTH COM 40131M109 136,750 -58,258 -29.87 3,266 -27.01 0.0071
2024-11-12 2024-09-30 13F GUARDANT HEALTH Stock 40131M109 195,008 68,883 54.61 4,473 22.82 0.0099
2024-08-13 2024-06-30 13F GUARDANT HEALTH COM 40131M109 126,125 -62,334 -33.08 3,642 -6.30 0.0096
2024-05-14 2024-03-31 13F GUARDANT HEALTH Stock 40131M109 188,459 138,817 279.64 3,888 189.64 0.0103
2024-01-26 2023-12-31 13F GUARDANT HEALTH Stock 40131M109 49,642 34,388 225.44 1,343 196.90 0.0044
2023-11-14 2023-09-30 13F GUARDANT HEALTH Stock 40131M109 15,254 -46,258 -75.20 452 -79.47 0.0022
2023-08-14 2023-06-30 13F GUARDANT HEALTH COM 40131M109 61,512 17,266 39.02 2,202 112.34 0.0086
2023-05-11 2023-03-31 13F GUARDANT HEALTH Stock 40131M109 44,246 13,178 42.42 1,037 22.72 0.0024
2023-02-15 2022-12-31 13F GUARDANT HEALTH Stock 40131M109 31,068 9,435 43.61 845 -27.47 0.0054
2022-11-14 2022-09-30 13F GUARDANT HEALTH Stock 40131M109 21,633 6,317 41.24 1,165 88.51 0.0140
2022-08-10 2022-06-30 13F GUARDANT HEALTH STOCK 40131M109 15,316 -1,636 -9.65 618 -44.97 0.0068
2022-04-25 2022-03-31 13F GUARDANT HEALTH Stock 40131M109 16,952 1,519 9.84 1,123 -27.27 0.0174
2022-02-14 2021-12-31 13F GUARDANT HEALTH Stock 40131M109 15,433 186 1.22 1,544 -18.99 0.0235
2021-10-25 2021-09-30 13F Guardant Health Stock 40131M109 15,247 113 0.75 1,906 1.44 0.0419
2021-08-11 2021-06-30 13F GUARDANT HEALTH Stock 40131M109 15,134 122 0.81 1,879 -18.02 0.0411
2021-08-11 2021-03-31 13F/A-1 GUARDANT HEALTH Stock 40131M109 15,012 563 3.90 2,292 23.09 0.0544
2021-05-12 2021-03-31 13F GUARDANT HEALTH Stock 40131M109 14,251 -198 2,175 0.0644
2021-02-11 2020-12-31 13F GUARDANT HEALTH Common Stock 40131M109 14,449 -338 -2.29 1,862 12.64 0.0597
2020-11-12 2020-09-30 13F GUARDANT HEALTH Common Stock 40131M109 14,787 14,787 1,653 0.0680
2019-08-14 2019-06-30 13F GUARDANT HEALTH COM 40131M109 0 -13,279 -100.00 0 -100.00
2019-05-14 2019-03-31 13F GUARDANT HEALTH COM 40131M109 13,279 13,279 1,018 0.0685
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.