Guardant Health, Inc.
DE ˙ DB ˙ US40131M1099
111,48 € ↑1,98 (1,81%)
2026-06-03
DEL PRIS
SecurityDE:5GH / Guardant Health, Inc.
InstitutionCaption Management, LLC
Latest Disclosed Ownership115,183 shares
Latest Disclosed Value $ 10,639,454
Caption Management, LLC ownership in 5GH / Guardant Health, Inc.

On May 15, 2026 - Caption Management, LLC filed a 13F-HR form disclosing ownership of 115,183 shares of Guardant Health, Inc. (DE:5GH) valued at $8,677,887 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 14, 2025 disclosing 0 shares of Guardant Health, Inc.. The current value of the position is $12,840,601 USD.

Caption Management, LLC has a history of taking positions in derivatives of the underlying security (5GH) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:5GH / Guardant Health, Inc. Historical Put/Call Ratio
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 115,183 115,183 10,639 0.0621
2025-08-14 2025-06-30 13F GUARDANT HEALTH COM 40131M109 0 -8,930 -100.00 0 -100.00
2025-05-15 2025-03-31 13F GUARDANT HEALTH COM 40131M109 8,930 8,930 380 0.0037
2025-02-14 2024-12-31 13F GUARDANT HEALTH COM 40131M109 0 -12,248 -100.00 0 -100.00
2024-11-14 2024-09-30 13F GUARDANT HEALTH COM 40131M109 12,248 -6,711 -35.40 281 -48.81 0.0045
2024-08-14 2024-06-30 13F GUARDANT HEALTH COM 40131M109 18,959 13,959 279.18 548 431.07 0.0084
2024-05-15 2024-03-31 13F GUARDANT HEALTH COM 40131M109 5,000 -5,800 -53.70 103 -64.73 0.0016
2024-02-14 2023-12-31 13F GUARDANT HEALTH COM 40131M109 10,800 10,800 292 0.0039
2023-08-14 2023-06-30 13F GUARDANT HEALTH COM 40131M109 0 -5,600 -100.00 0 -100.00
2023-05-15 2023-03-31 13F GUARDANT HEALTH COM 40131M109 5,600 -43,745 -88.65 131 -90.24 0.0025
2023-02-14 2022-12-31 13F GUARDANT HEALTH COM 40131M109 49,345 35,651 260.34 1,342 81.84 0.0209
2022-11-14 2022-09-30 13F GUARDANT HEALTH COM 40131M109 13,694 -82,486 -85.76 738 -80.98 0.0102
2022-08-15 2022-06-30 13F GUARDANT HEALTH COM 40131M109 96,180 67,090 230.63 3,880 101.35 0.0535
2022-05-13 2022-03-31 13F GUARDANT HEALTH COM 40131M109 29,090 29,090 1,927 0.0232
2020-05-14 2020-03-31 13F GUARDANT HEALTH COM 40131M109 0 -52,834 -100.00 0 -100.00
2020-02-13 2019-12-31 13F GUARDANT HEALTH COM 40131M109 52,834 52,834 4,128 0.1387
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F GUARDANT HEALTH COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F GUARDANT HEALTH COM Call 175,000 -32.04 17,874 11.10 n/a n/a n/a
2025-11-14 2025-09-30 13F GUARDANT HEALTH COM Call 257,500 83.93 16,089 120.84 n/a n/a n/a
2025-08-14 2025-06-30 13F GUARDANT HEALTH COM Call 140,000 133.33 7,286 185.02 n/a n/a n/a
2025-05-15 2025-03-31 13F GUARDANT HEALTH COM Call 60,000 2,556 n/a n/a n/a
2024-08-14 2024-06-30 13F GUARDANT HEALTH COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F GUARDANT HEALTH COM Call 16,600 342 n/a n/a n/a
2023-08-14 2023-06-30 13F GUARDANT HEALTH COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F GUARDANT HEALTH COM Call 40,000 0.00 938 -13.88 n/a n/a n/a
2023-02-14 2022-12-31 13F GUARDANT HEALTH COM Call 40,000 -76.43 1,088 -88.09 n/a n/a n/a
2022-11-14 2022-09-30 13F GUARDANT HEALTH COM Call 169,700 -18.69 9,134 8.49 n/a n/a n/a
2022-08-15 2022-06-30 13F GUARDANT HEALTH COM Call 208,700 54.02 8,419 -6.18 n/a n/a n/a
2022-05-13 2022-03-31 13F GUARDANT HEALTH COM Call 135,500 8,974 n/a n/a n/a
2020-05-14 2020-03-31 13F GUARDANT HEALTH COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F GUARDANT HEALTH COM Call 19,300 1,508 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-02-17 2025-12-31 13F GUARDANT HEALTH COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F GUARDANT HEALTH COM Put 282,500 17,651 n/a n/a n/a
2025-08-14 2025-06-30 13F GUARDANT HEALTH COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F GUARDANT HEALTH COM Put 82,400 3,510 n/a n/a n/a
2025-02-14 2024-12-31 13F GUARDANT HEALTH COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-11-14 2024-09-30 13F GUARDANT HEALTH COM Put 150,700 0.00 3,457 -20.57 n/a n/a n/a
2024-08-14 2024-06-30 13F GUARDANT HEALTH COM Put 150,700 352.55 4,352 534.40 n/a n/a n/a
2024-05-15 2024-03-31 13F GUARDANT HEALTH COM Put 33,300 687 n/a n/a n/a
2023-02-14 2022-12-31 13F GUARDANT HEALTH COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F GUARDANT HEALTH COM Put 504,300 1,581.00 27,145 2,143.39 n/a n/a n/a
2022-08-15 2022-06-30 13F GUARDANT HEALTH COM Put 30,000 1,210 n/a n/a n/a
2022-05-13 2022-03-31 13F GUARDANT HEALTH COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-11 2021-12-31 13F GUARDANT HEALTH COM Put 1,300 130 n/a n/a n/a
2020-05-14 2020-03-31 13F GUARDANT HEALTH COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F GUARDANT HEALTH COM Put 90,000 7,033 n/a n/a n/a
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.