Guardant Health, Inc.
US ˙ NasdaqGS ˙ US40131M1099

SecurityGH / Guardant Health, Inc.
InstitutionCwm, Llc
Latest Disclosed Ownership2,745 shares
Latest Disclosed Value $ 253,556
Cwm, Llc reports 18.88% increase in ownership of GH / Guardant Health, Inc.

On May 14, 2026 - Cwm, Llc filed a 13F-HR form disclosing ownership of 2,745 shares of Guardant Health, Inc. (US:GH) valued at $253,556 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 2,309 shares of Guardant Health, Inc.. The current value of the position is $348,697 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)
2026-05-14 2026-03-31 13F GUARDANT HEALTH COM 40131M109 2,745 436 18.88 254 0.0007
2026-01-26 2025-12-31 13F GUARDANT HEALTH COM 40131M109 2,309 289 14.31 0 0.0006
2025-10-15 2025-09-30 13F GUARDANT HEALTH COM 40131M109 2,020 359 21.61 0 0.0004
2025-07-25 2025-06-30 13F GUARDANT HEALTH COM 40131M109 1,661 -635 -27.66 0 0.0003
2025-05-01 2025-03-31 13F GUARDANT HEALTH COM 40131M109 2,296 1,477 180.34 0 0.0004
2025-02-04 2024-12-31 13F GUARDANT HEALTH COM 40131M109 819 434 112.73 0 0.0001
2024-10-08 2024-09-30 13F GUARDANT HEALTH COM 40131M109 385 -19 -4.70 0 0.0000
2024-07-10 2024-06-30 13F GUARDANT HEALTH COM 40131M109 404 -22 -5.16 0 0.0001
2024-04-05 2024-03-31 13F GUARDANT HEALTH COM 40131M109 426 -126 -22.83 0 0.0000
2024-02-01 2023-12-31 13F GUARDANT HEALTH COM 40131M109 552 -432 -43.90 0 0.0001
2023-10-11 2023-09-30 13F GUARDANT HEALTH COM 40131M109 984 569 137.11 0 0.0002
2023-08-03 2023-06-30 13F GUARDANT HEALTH COM 40131M109 415 -936 -69.28 0 0.0001
2023-05-01 2023-03-31 13F GUARDANT HEALTH COM 40131M109 1,351 -114 -7.78 0 0.0002
2023-02-01 2022-12-31 13F GUARDANT HEALTH COM 40131M109 1,465 -220 -13.06 0 -100.00 0.0003
2022-10-27 2022-09-30 13F GUARDANT HEALTH COM 40131M109 1,685 -49 -2.83 91 30.00 0.0007
2022-07-28 2022-06-30 13F GUARDANT HEALTH COM 40131M109 1,734 735 73.57 70 6.06 0.0005
2022-04-21 2022-03-31 13F GUARDANT HEALTH COM 40131M109 999 -689 -40.82 66 -60.95 0.0005
2022-01-31 2021-12-31 13F GUARDANT HEALTH COM 40131M109 1,688 -50,421 -96.76 169 -97.39 0.0012
2021-09-15 2021-06-30 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2021-07-29 2021-06-30 13F GUARDANT HEALTH COM 40131M109 52,109 0 6,471 0.0516
2021-09-15 2021-03-31 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2021-04-27 2021-03-31 13F GUARDANT HEALTH COM 40131M109 49,499 -2,610 7,556 0.0665
2021-09-15 2020-12-31 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2021-01-27 2020-12-31 13F GUARDANT HEALTH COM 40131M109 44,131 -7,978 5,688 0.0533
2021-09-15 2020-09-30 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2020-10-19 2020-09-30 13F GUARDANT HEALTH COM 40131M109 33,193 -18,916 3,710 0.0412
2021-09-15 2020-06-30 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2020-07-22 2020-06-30 13F GUARDANT HEALTH COM 40131M109 22,586 -29,523 1,832 0.0217
2021-09-15 2020-03-31 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2020-04-28 2020-03-31 13F GUARDANT HEALTH COM 40131M109 21 -52,088 1 0.0000
2021-09-14 2019-12-31 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2020-01-27 2019-12-31 13F GUARDANT HEALTH COM 40131M109 21 -52,088 2 0.0000
2021-09-14 2019-09-30 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2019-10-22 2019-09-30 13F GUARDANT HEALTH COM 40131M109 21 -52,088 1 0.0000
2021-09-14 2019-06-30 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 0 0.00 6,471 0.00 0.0516
2019-07-31 2019-06-30 13F GUARDANT HEALTH COM 40131M109 21 -52,088 2 0.0000
2021-09-02 2019-03-31 13F/A-1 GUARDANT HEALTH COM 40131M109 52,109 52,095 372,107.14 6,471 647,000.00 0.0516
2019-04-22 2019-03-31 13F GUARDANT HEALTH COM 40131M109 21 7 2 0.0000
2019-01-25 2018-12-31 13F GUARDANT HEALTH COM 40131M109 14 14 1 0.0000
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.