Guardant Health, Inc.
DE ˙ DB ˙ US40131M1099
111,48 € ↑2,18 (1,99%)
2026-06-05
DEL PRIS
SecurityDE:5GH / Guardant Health, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership157,909 shares
Latest Disclosed Value $ 14,586,039
Rhumbline Advisers reports 1.34% increase in ownership of 5GH / Guardant Health, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 157,909 shares of Guardant Health, Inc. (DE:5GH) valued at $11,896,864 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 155,818 shares of Guardant Health, Inc.. This represents a change in shares of 1.34% during the quarter. The current value of the position is $17,603,695 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)
2026-05-12 2026-03-31 13F GUARDANT HEALTH COM 40131M109 157,909 2,091 1.34 14,586 -8.35 0.0125
2026-02-13 2025-12-31 13F GUARDANT HEALTH COM 40131M109 155,818 -24,349 -13.51 15,915 41.39 0.0129
2025-11-06 2025-09-30 13F GUARDANT HEALTH COM 40131M109 180,167 -4,557 -2.47 11,257 17.09 0.0090
2025-08-12 2025-06-30 13F GUARDANT HEALTH COM 40131M109 184,724 9,292 5.30 9,613 28.64 0.0082
2025-05-29 2025-03-31 13F/A-1 GUARDANT HEALTH COM 40131M109 175,432 8,202 4.90 7,473 46.30 0.0070
2025-04-08 2025-03-31 13F GUARDANT HEALTH COM 40131M109 175,432 8,202 7,473 0.0070
2025-05-29 2024-12-31 13F/A-1 GUARDANT HEALTH COM 40131M109 167,230 3,529 2.16 5,109 36.03 0.0046
2025-01-30 2024-12-31 13F GUARDANT HEALTH COM 40131M109 167,230 3,529 5,109 0.0046
2024-11-12 2024-09-30 13F GUARDANT HEALTH COM 40131M109 163,701 -9,597 -5.54 3,755 -24.96 0.0034
2024-08-01 2024-06-30 13F GUARDANT HEALTH COM 40131M109 173,298 10,162 6.23 5,005 48.71 0.0047
2024-05-09 2024-03-31 13F GUARDANT HEALTH COM 40131M109 163,136 3,890 2.44 3,365 -21.87 0.0032
2024-02-08 2023-12-31 13F GUARDANT HEALTH COM 40131M109 159,246 -414 -0.26 4,308 -8.98 0.0045
2023-11-09 2023-09-30 13F GUARDANT HEALTH COM 40131M109 159,660 8,688 5.75 4,732 -12.44 0.0055
2023-08-08 2023-06-30 13F GUARDANT HEALTH COM 40131M109 150,972 29,315 24.10 5,405 270,100.00 0.0061
2023-05-11 2023-03-31 13F GUARDANT HEALTH COM 40131M109 121,657 11,406 10.35 3 -99.93 0.0035
2023-02-14 2022-12-31 13F GUARDANT HEALTH COM 40131M109 110,251 4,099 3.86 2,999 -47.51 0.0040
2022-11-10 2022-09-30 13F GUARDANT HEALTH COM 40131M109 106,152 8,536 8.74 5,714 45.10 0.0085
2022-08-11 2022-06-30 13F GUARDANT HEALTH COM 40131M109 97,616 15,962 19.55 3,938 -27.20 0.0057
2022-05-12 2022-03-31 13F GUARDANT HEALTH COM 40131M109 81,654 -4,578 -5.31 5,409 -37.29 0.0070
2022-02-10 2021-12-31 13F GUARDANT HEALTH COM 40131M109 86,232 2,708 3.24 8,625 -17.39 0.0106
2021-11-12 2021-09-30 13F GUARDANT HEALTH COM 40131M109 83,524 -708 -0.84 10,441 -0.19 0.0141
2021-08-05 2021-06-30 13F GUARDANT HEALTH COM 40131M109 84,232 -268 -0.32 10,461 -18.90 0.0137
2021-05-06 2021-03-31 13F GUARDANT HEALTH COM 40131M109 84,500 -2,552 -2.93 12,899 14.97 0.0175
2021-02-10 2020-12-31 13F GUARDANT HEALTH COM 40131M109 87,052 5,358 6.56 11,219 22.85 0.0155
2020-11-12 2020-09-30 13F GUARDANT HEALTH COM 40131M109 81,694 -4,645 -5.38 9,132 30.36 0.0143
2020-08-13 2020-06-30 13F GUARDANT HEALTH COM 40131M109 86,339 48,550 128.48 7,005 166.35 0.0117
2020-05-06 2020-03-31 13F GUARDANT HEALTH COM 40131M109 37,789 965 2.62 2,630 -8.59 0.0055
2020-02-05 2019-12-31 13F GUARDANT HEALTH COM 40131M109 36,824 983 2.74 2,877 25.74 0.0048
2019-10-23 2019-09-30 13F GUARDANT HEALTH COM 40131M109 35,841 1,538 4.48 2,288 -22.73 0.0042
2019-08-14 2019-06-30 13F GUARDANT HEALTH COM 40131M109 34,303 14,056 69.42 2,961 90.66 0.0056
2019-05-01 2019-03-31 13F GUARDANT HEALTH COM 40131M109 20,247 367 1.85 1,553 107.90 0.0030
2019-01-31 2018-12-31 13F GUARDANT HEALTH COM 40131M109 19,880 19,880 747 0.0016
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.