Guardant Health, Inc.
DE ˙ DB ˙ US40131M1099
111,48 € ↑2,18 (1,99%)
2026-06-05
DEL PRIS
SecurityDE:5GH / Guardant Health, Inc.
InstitutionJane Street Group, Llc
Latest Disclosed Ownership4,803 shares
Latest Disclosed Value $ 443,653
Jane Street Group, Llc ownership in 5GH / Guardant Health, Inc.

On May 12, 2026 - Jane Street Group, Llc filed a 13F-HR form disclosing ownership of 4,803 shares of Guardant Health, Inc. (DE:5GH) valued at $361,858 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 513,620 shares of Guardant Health, Inc.. This represents a change in shares of -99.06% during the quarter. The current value of the position is $535,438 USD.

Jane Street Group, 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 101,000 of underlying shares valued at $9,329,370 USD and put options representing 63,800 of underlying shares valued at $5,893,206 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)
2026-05-12 2026-03-31 13F GUARDANT HEALTH COM 40131M109 4,803 -508,817 -99.06 444 -99.16 0.0000
2026-02-12 2025-12-31 13F GUARDANT HEALTH COM 40131M109 513,620 436,641 567.22 52,461 990.89 0.0079
2025-11-14 2025-09-30 13F GUARDANT HEALTH COM 40131M109 76,979 76,979 4,810 0.0007
2025-08-14 2025-06-30 13F GUARDANT HEALTH COM 40131M109 0 -31,873 -100.00 0 -100.00
2025-05-19 2025-03-31 13F/A-1 GUARDANT HEALTH COM 40131M109 31,873 -133,962 -80.78 1,358 -73.21 0.0003
2025-05-14 2025-03-31 13F GUARDANT HEALTH COM 40131M109 31,873 -133,962 1,358 0.0003
2025-02-14 2024-12-31 13F GUARDANT HEALTH COM 40131M109 165,835 67,353 68.39 5,066 124.26 0.0011
2024-11-15 2024-09-30 13F GUARDANT HEALTH COM 40131M109 98,482 -105,494 -51.72 2,259 -61.65 0.0005
2024-08-15 2024-06-30 13F GUARDANT HEALTH COM 40131M109 203,976 -5,336 -2.55 5,891 36.41 0.0013
2024-05-16 2024-03-31 13F GUARDANT HEALTH COM 40131M109 209,312 27,398 15.06 4,318 -12.24 0.0009
2024-02-15 2023-12-31 13F GUARDANT HEALTH COM 40131M109 181,914 107,279 143.74 4,921 122.42 0.0013
2023-11-15 2023-09-30 13F GUARDANT HEALTH COM 40131M109 74,635 -49,099 -39.68 2,212 -50.06 0.0007
2023-08-14 2023-06-30 13F GUARDANT HEALTH COM 40131M109 123,734 -122,518 -49.75 4,430 -23.27 0.0015
2023-05-16 2023-03-31 13F GUARDANT HEALTH COM 40131M109 246,252 53,742 27.92 5,772 10.24 0.0024
2023-02-15 2022-12-31 13F GUARDANT HEALTH COM 40131M109 192,510 57,345 42.43 5,236 -28.04 0.0024
2022-11-15 2022-09-30 13F GUARDANT HEALTH COM 40131M109 135,165 59,832 79.42 7,276 139.42 0.0032
2022-08-16 2022-06-30 13F GUARDANT HEALTH COM 40131M109 75,333 -28,692 -27.58 3,039 -55.90 0.0013
2022-05-17 2022-03-31 13F GUARDANT HEALTH COM 40131M109 104,025 87,260 520.49 6,891 310.91 0.0022
2022-02-15 2021-12-31 13F GUARDANT HEALTH COM 40131M109 16,765 14,255 567.93 1,677 434.08 0.0006
2021-11-16 2021-09-30 13F GUARDANT HEALTH COM 40131M109 2,510 -74,994 -96.76 314 -96.74 0.0001
2021-08-16 2021-06-30 13F GUARDANT HEALTH COM 40131M109 77,504 51,043 192.90 9,625 138.30 0.0038
2021-05-18 2021-03-31 13F GUARDANT HEALTH COM 40131M109 26,461 -73,509 -73.53 4,039 -68.65 0.0020
2021-02-17 2020-12-31 13F GUARDANT HEALTH COM 40131M109 99,970 32,628 48.45 12,884 71.17 0.0065
2020-11-17 2020-09-30 13F GUARDANT HEALTH COM 40131M109 67,342 -16,144 -19.34 7,527 11.13 0.0045
2020-08-17 2020-06-30 13F GUARDANT HEALTH COM 40131M109 83,486 64,610 342.29 6,773 415.45 0.0051
2020-05-15 2020-03-31 13F GUARDANT HEALTH COM 40131M109 18,876 -7,291 -27.86 1,314 -35.75 0.0013
2020-02-14 2019-12-31 13F GUARDANT HEALTH COM 40131M109 26,167 19,919 318.81 2,045 412.53 0.0029
2019-11-14 2019-09-30 13F GUARDANT HEALTH COM 40131M109 6,248 -6,163 -49.66 399 -62.75 0.0007
2019-08-15 2019-06-30 13F GUARDANT HEALTH COM 40131M109 12,411 12,411 1,071 0.0019
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
(%)
2026-05-12 2026-03-31 13F GUARDANT HEALTH COM Call 101,000 -70.20 9,329 -73.05 n/a n/a n/a
2026-02-12 2025-12-31 13F GUARDANT HEALTH COM Call 338,900 -25.57 34,615 21.68 n/a n/a n/a
2025-11-14 2025-09-30 13F GUARDANT HEALTH COM Call 455,300 34.47 28,447 61.45 n/a n/a n/a
2025-08-14 2025-06-30 13F GUARDANT HEALTH COM Call 338,600 8.49 17,621 32.53 n/a n/a n/a
2025-05-19 2025-03-31 13F/A GUARDANT HEALTH COM Call 312,100 525.45 13,295 772.38 n/a n/a n/a
2025-05-14 2025-03-31 13F GUARDANT HEALTH COM Call 312,100 13,295 n/a n/a n/a
2025-02-14 2024-12-31 13F GUARDANT HEALTH COM Call 49,900 -79.09 1,524 -72.15 n/a n/a n/a
2024-11-15 2024-09-30 13F GUARDANT HEALTH COM Call 238,600 186.09 5,473 127.28 n/a n/a n/a
2024-08-15 2024-06-30 13F GUARDANT HEALTH COM Call 83,400 304.85 2,409 467.92 n/a n/a n/a
2024-05-16 2024-03-31 13F GUARDANT HEALTH COM Call 20,600 -84.49 425 -88.20 n/a n/a n/a
2024-02-15 2023-12-31 13F GUARDANT HEALTH COM Call 132,800 -25.48 3,592 -31.98 n/a n/a n/a
2023-11-15 2023-09-30 13F GUARDANT HEALTH COM Call 178,200 43.25 5,282 18.59 n/a n/a n/a
2023-08-14 2023-06-30 13F GUARDANT HEALTH COM Call 124,400 -26.74 4,454 11.88 n/a n/a n/a
2023-05-16 2023-03-31 13F GUARDANT HEALTH COM Call 169,800 -27.25 3,980 -37.30 n/a n/a n/a
2023-02-15 2022-12-31 13F GUARDANT HEALTH COM Call 233,400 57.60 6,348 -20.37 n/a n/a n/a
2022-11-15 2022-09-30 13F GUARDANT HEALTH COM Call 148,100 -53.38 7,972 -37.80 n/a n/a n/a
2022-08-16 2022-06-30 13F GUARDANT HEALTH COM Call 317,700 130.22 12,816 40.20 n/a n/a n/a
2022-05-17 2022-03-31 13F GUARDANT HEALTH COM Call 138,000 15.19 9,141 -23.71 n/a n/a n/a
2022-02-15 2021-12-31 13F GUARDANT HEALTH COM Call 119,800 4.81 11,982 -16.15 n/a n/a n/a
2021-11-16 2021-09-30 13F GUARDANT HEALTH COM Call 114,300 20.19 14,289 20.99 n/a n/a n/a
2021-08-16 2021-06-30 13F GUARDANT HEALTH COM Call 95,100 150.26 11,810 103.59 n/a n/a n/a
2021-05-18 2021-03-31 13F GUARDANT HEALTH COM Call 38,000 -25.05 5,801 -11.22 n/a n/a n/a
2021-02-17 2020-12-31 13F GUARDANT HEALTH COM Call 50,700 -20.78 6,534 -8.67 n/a n/a n/a
2020-11-17 2020-09-30 13F GUARDANT HEALTH COM Call 64,000 88.79 7,154 160.15 n/a n/a n/a
2020-08-17 2020-06-30 13F GUARDANT HEALTH COM Call 33,900 -36.64 2,750 -26.15 n/a n/a n/a
2020-05-15 2020-03-31 13F GUARDANT HEALTH COM Call 53,500 22.99 3,724 9.56 n/a n/a n/a
2020-02-14 2019-12-31 13F GUARDANT HEALTH COM Call 43,500 90.79 3,399 133.61 n/a n/a n/a
2019-11-14 2019-09-30 13F GUARDANT HEALTH COM Call 22,800 1,455 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
(%)
2026-05-12 2026-03-31 13F GUARDANT HEALTH COM Put 63,800 -52.03 5,893 -56.62 n/a n/a n/a
2026-02-12 2025-12-31 13F GUARDANT HEALTH COM Put 133,000 -31.23 13,585 12.42 n/a n/a n/a
2025-11-14 2025-09-30 13F GUARDANT HEALTH COM Put 193,400 118.78 12,084 162.67 n/a n/a n/a
2025-08-14 2025-06-30 13F GUARDANT HEALTH COM Put 88,400 -5.15 4,600 15.87 n/a n/a n/a
2025-05-19 2025-03-31 13F/A GUARDANT HEALTH COM Put 93,200 140.21 3,970 235.02 n/a n/a n/a
2025-05-14 2025-03-31 13F GUARDANT HEALTH COM Put 93,200 3,970 n/a n/a n/a
2025-02-14 2024-12-31 13F GUARDANT HEALTH COM Put 38,800 43.70 1,185 91.44 n/a n/a n/a
2024-11-15 2024-09-30 13F GUARDANT HEALTH COM Put 27,000 -35.56 619 -48.84 n/a n/a n/a
2024-08-15 2024-06-30 13F GUARDANT HEALTH COM Put 41,900 -31.98 1,210 -4.72 n/a n/a n/a
2024-05-16 2024-03-31 13F GUARDANT HEALTH COM Put 61,600 -21.83 1,271 -40.40 n/a n/a n/a
2024-02-15 2023-12-31 13F GUARDANT HEALTH COM Put 78,800 114.13 2,132 95.50 n/a n/a n/a
2023-11-15 2023-09-30 13F GUARDANT HEALTH COM Put 36,800 -1.60 1,091 -18.54 n/a n/a n/a
2023-08-14 2023-06-30 13F GUARDANT HEALTH COM Put 37,400 -65.01 1,339 -46.59 n/a n/a n/a
2023-05-16 2023-03-31 13F GUARDANT HEALTH COM Put 106,900 -38.77 2,506 -47.25 n/a n/a n/a
2023-02-15 2022-12-31 13F GUARDANT HEALTH COM Put 174,600 26.06 4,749 -36.30 n/a n/a n/a
2022-11-15 2022-09-30 13F GUARDANT HEALTH COM Put 138,500 16.19 7,455 55.02 n/a n/a n/a
2022-08-16 2022-06-30 13F GUARDANT HEALTH COM Put 119,200 4.84 4,809 -36.14 n/a n/a n/a
2022-05-17 2022-03-31 13F GUARDANT HEALTH COM Put 113,700 16.02 7,531 -23.17 n/a n/a n/a
2022-02-15 2021-12-31 13F GUARDANT HEALTH COM Put 98,000 35.17 9,802 8.15 n/a n/a n/a
2021-11-16 2021-09-30 13F GUARDANT HEALTH COM Put 72,500 -58.17 9,063 -57.89 n/a n/a n/a
2021-08-16 2021-06-30 13F GUARDANT HEALTH COM Put 173,300 265.61 21,522 197.43 n/a n/a n/a
2021-05-18 2021-03-31 13F GUARDANT HEALTH COM Put 47,400 189.02 7,236 242.29 n/a n/a n/a
2021-02-17 2020-12-31 13F GUARDANT HEALTH COM Put 16,400 -77.44 2,114 -73.98 n/a n/a n/a
2020-11-17 2020-09-30 13F GUARDANT HEALTH COM Put 72,700 -18.13 8,126 12.80 n/a n/a n/a
2020-08-17 2020-06-30 13F GUARDANT HEALTH COM Put 88,800 685.84 7,204 816.54 n/a n/a n/a
2020-05-15 2020-03-31 13F GUARDANT HEALTH COM Put 11,300 -39.57 786 -46.20 n/a n/a n/a
2020-02-14 2019-12-31 13F GUARDANT HEALTH COM Put 18,700 22.22 1,461 49.54 n/a n/a n/a
2019-11-14 2019-09-30 13F GUARDANT HEALTH COM Put 15,300 977 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.