Guardant Health, Inc.
MX ˙ BMV ˙ US40131M1099
SecurityMX:GH / Guardant Health, Inc.
InstitutionBnp Paribas Arbitrage, Sa
Latest Disclosed Ownership572,650 shares
Latest Disclosed Value $ 52,895,680
Bnp Paribas Arbitrage, Sa ownership in GH / Guardant Health, Inc.

On May 12, 2026 - Bnp Paribas Arbitrage, Sa filed a 13F-HR form disclosing ownership of 572,650 shares of Guardant Health, Inc. (MX:GH) valued at $52,895,680 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 624,776 shares of Guardant Health, Inc.. This represents a change in shares of -8.34% during the quarter.

Bnp Paribas Arbitrage, Sa has a history of taking positions in derivatives of the underlying security (GH) in the form of stock options.

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.

MX:GH / 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 Equity 40131M109 572,650 -52,126 -8.34 52,896 -17.11 0.0257
2026-02-10 2025-12-31 13F Guardant Health Equity 40131M109 624,776 567,008 981.53 63,815 1,668.19 0.0289
2025-11-13 2025-09-30 13F Guardant Health Equity 40131M109 57,768 -81,183 -58.43 3,609 -50.09 0.0019
2025-08-14 2025-06-30 13F Guardant Health Equity 40131M109 138,951 -311,520 -69.15 7,231 -62.32 0.0041
2025-05-14 2025-03-31 13F Guardant Health Equity 40131M109 450,471 9,145 2.07 19,190 42.34 0.0113
2025-02-14 2024-12-31 13F Guardant Health Equity 40131M109 441,326 374,419 559.61 13,483 778.88 0.0076
2024-11-13 2024-09-30 13F Guardant Health Equity 40131M109 66,907 -149,327 -69.06 1,535 -75.43 0.0010
2024-08-13 2024-06-30 13F Guardant Health Equity 40131M109 216,234 112,883 109.22 6,245 192.87 0.0051
2024-05-01 2024-03-31 13F Guardant Health Equity 40131M109 103,351 -220,102 -68.05 2,132 -75.63 0.0019
2024-02-14 2023-12-31 13F/A-2 Guardant Health Equity 40131M109 323,453 104,302 47.59 8,749 34.70 0.0099
2024-02-07 2023-12-31 13F/A-1 Guardant Health Equity 40131M109 323,453 104,302 8,749 0.0012
2024-02-07 2023-12-31 13F Guardant Health Equity 40131M109 323,453 104,302 8,749 0.0101
2023-11-14 2023-09-30 13F Guardant Health Equity 40131M109 219,151 19,562 9.80 6,496 -9.10 0.0083
2023-08-09 2023-06-30 13F Guardant Health Equity 40131M109 199,589 -41,776 -17.31 7,145 26.30 0.0089
2023-05-12 2023-03-31 13F GUARDANT HEALTH EQUITY 40131M109 241,365 172,452 250.25 5,658 201.87 0.0079
2023-02-14 2022-12-31 13F Guardant Health Equity 40131M109 68,913 68,913 1,874 0.0029
2022-11-15 2022-09-30 13F/A-1 Guardant Health Equity 40131M109 0 -18,676 -100.00 0 -100.00
2022-11-15 2022-09-30 13F Guardant Health Equity 40131M109 0 -18,676 0
2022-08-12 2022-06-30 13F Guardant Health Equity 40131M109 18,676 -10,598 -36.20 753 -61.17 0.0012
2022-05-18 2022-03-31 13F/A-1 Guardant Health Equity 40131M109 29,274 18,180 163.87 1,939 74.84 0.0026
2022-02-09 2021-12-31 13F GUARDANT HEALTH EQUITY 40131M109 11,094 -50,256 -81.92 1,110 -85.54 0.0016
2021-11-16 2021-09-30 13F/A-1 GUARDANT HEALTH EQUITY 40131M109 61,350 -9,389 -13.27 7,669 -12.70 0.0109
2021-11-12 2021-09-30 13F GUARDANT HEALTH EQUITY 40131M109 2,363 -68,376 264 0.0000
2021-08-10 2021-06-30 13F GUARDANT HEALTH EQUITY 40131M109 70,739 35,097 98.47 8,785 61.49 0.0116
2021-05-07 2021-03-31 13F GUARDANT HEALTH EQUITY 40131M109 35,642 19,489 120.65 5,441 161.41 0.0080
2021-02-10 2020-12-31 13F GUARDANT HEALTH EQUITY 40131M109 16,153 13,790 583.58 2,082 688.26 0.0039
2020-10-30 2020-09-30 13F GUARDANT HEALTH EQUITY 40131M109 2,363 -6,115 -72.13 264 -61.57 0.0004
2020-08-06 2020-06-30 13F GUARDANT HEALTH EQUITY 40131M109 8,478 -2,487 -22.68 688 -9.96 0.0012
2020-05-13 2020-03-31 13F GUARDANT HEALTH EQUITY 40131M109 10,965 910 9.05 763 -2.80 0.0016
2020-02-12 2019-12-31 13F GUARDANT HEALTH EQUITY 40131M109 10,055 7,491 292.16 786 381.60 0.0014
2019-11-07 2019-09-30 13F GUARDANT HEALTH EQUITY 40131M109 2,564 -332 -11.46 164 -34.80 0.0003
2019-07-30 2019-06-30 13F GUARDANT HEALTH EQUITY 40131M109 2,896 2,896 250 0.0005
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
(%)
2022-11-15 2022-09-30 13F/A Guardant Health Option Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-15 2022-09-30 13F Guardant Health Option Put 0 0 n/a n/a n/a
2022-08-12 2022-06-30 13F Guardant Health Option Put 300 1,210 n/a n/a n/a
2022-02-09 2021-12-31 13F GUARDANT HEALTH OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-16 2021-09-30 13F/A GUARDANT HEALTH OPTION Put 50 625 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.