GUARDANT HEALTH INC GH
COM · Common Stock · CUSIP 40131M109 · ISIN US40131M1099
American biotechnology company
- SectorHealth care
- IndustryServices-Medical Laboratories
- HeadquartersPalo Alto, CA
- Founded2012
- Websiteguardanthealth.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($13.4m this quarter). Holder counts are more reliable. Shares outstanding: 117.7m as of 2023-07-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $35.36. Options: 10 managers hold calls ($23.9m notional), 15 hold puts ($13.4m).
Trends to Q2 2023
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 329 |
| Q4 2022 | 293 |
| Q1 2023 | 281 |
| Q2 2023 | 303 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 138 | 186 |
| Q1 2023 | 158 | 127 |
| Q2 2023 | 177 | 132 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2022 | $207.2m | $135.6m | 0.65 |
| Q4 2022 | $110.9m | $21.6m | 0.19 |
| Q1 2023 | $31.8m | $11.3m | 0.36 |
| Q2 2023 | $23.9m | $13.4m | 0.56 |
Biggest buyers
| BlackRock Inc. | Added | +3.8m |
| Point72 Asset Management, L.P. | New | +2.7m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +2.5m |
| EVENTIDE ASSET MANAGEMENT, LLC | Added | +2.1m |
| WELLINGTON MANAGEMENT GROUP LLP | New | +1.6m |
| VANGUARD GROUP INC | Added | +1.6m |
| Deep Track Capital, LP | New | +1.5m |
| T. Rowe Price Investment Management, Inc. | New | +1.5m |
| JENNISON ASSOCIATES LLC | New | +1.5m |
| Parkwood LLC | New | +1.3m |
Biggest sellers
| FMR LLC | Reduced | -8.7m |
| Capital International Investors | Reduced | -4.3m |
| Balyasny Asset Management L.P. | Reduced | -1.5m |
| Invesco Ltd. | Reduced | -1.3m |
| VIKING GLOBAL INVESTORS LP | Reduced | -944.6k |
| Clearbridge Investments, LLC | Reduced | -753.0k |
| Qube Research & Technologies Ltd | Sold out | -658.7k |
| Cubist Systematic Strategies, LLC | Sold out | -647.8k |
| D. E. Shaw & Co., Inc. | Sold out | -490.7k |
| Eversept Partners, LP | Sold out | -483.1k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $9.7m271.1k shares |
| GROUP ONE TRADING LLC | Reduced | $5.2m146.0k shares |
| JANE STREET GROUP, LLC | Reduced | $4.5m124.4k shares |
| CITADEL ADVISORS LLC | Reduced | $1.6m45.5k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.1m29.4k shares |
| Walleye Capital LLC | Reduced | $701.7k19.6k shares |
| Walleye Trading LLC | Reduced | $443.9k12.4k shares |
| CAPITAL FUND MANAGEMENT S.A. | New | $372.3k10.4k shares |
| TWO SIGMA SECURITIES, LLC | Reduced | $307.9k8.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.7m132.0k shares |
| CITADEL ADVISORS LLC | Reduced | $2.1m57.5k shares |
| III Capital Management | New | $1.8m50.0k shares |
| JANE STREET GROUP, LLC | Reduced | $1.3m37.4k shares |
| GROUP ONE TRADING LLC | Added | $848.5k23.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $794.0k22.2k shares |
| Walleye Capital LLC | Added | $447.5k12.5k shares |
| D. E. Shaw & Co., Inc. | New | $422.4k11.8k shares |
| TWO SIGMA SECURITIES, LLC | Reduced | $408.1k11.4k shares |
| Cubist Systematic Strategies, LLC | New | $325.8k9.1k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -2.3 pts · filed 2026-07-28 | 5.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.0% |
Fell to 5% or below in the last year: PRICE T ROWE ASSOCIATES INC /MD/ (4.9%, 2026-08-14), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)
Insider purchases and sales in Q2 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2021 | 0 | — | 0 | — | — |
| Q4 2021 | 2 | $17.7m | 1 | $1.5m | — |
| Q1 2022 | 0 | — | 1 | $1.1m | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 2 | $587.4k | — |
| Q4 2022 | 0 | — | 1 | $162.1k | — |
| Q1 2023 | 2 | $4.9m | 1 | $207.5k | — |
| Q2 2023 | 1 | $97.5k | 1 | $103.9k | $103.9k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-06-15 | Joyce Meghan V. Director | Sold plan | $103.9k2.8k shares |
| 2023-06-09 | Kalia Kumud Chief Information Officer | Bought | $97.5k3.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2023
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.01% of their portfolio | 10.8m $386.8m | Added +1.6m |
| BlackRock Inc. 0.01% of their portfolio | 9.7m $346.5m | Added +3.8m |
| FMR LLC 0.03% of their portfolio | 8.8m $315.1m | Reduced -8.7m |
| ALLIANCEBERNSTEIN L.P. 0.07% of their portfolio | 4.5m $159.8m | Added +1.2m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.02% of their portfolio | 4.2m $150.9m | Added +2.5m |
| EVENTIDE ASSET MANAGEMENT, LLC 2.43% of their portfolio | 4.0m $143.5m | Added +2.1m |
| Temasek Holdings (Private) Ltd 0.82% of their portfolio | 4.0m $141.9m | Added +299.5k |
| Capital International Investors 0.03% of their portfolio | 2.9m $103.6m | Reduced -4.3m |
| Point72 Asset Management, L.P. 0.34% of their portfolio | 2.7m $97.2m | New |
| MILLENNIUM MANAGEMENT LLC 0.09% of their portfolio | 2.4m $87.1m | Added +1.1m |
| STATE STREET CORP 0.00% of their portfolio | 2.3m $84.1m | Added +775.8k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 2.3m $80.9m | Added +790.1k |
| CREDIT SUISSE AG/ 0.08% of their portfolio | 2.2m $78.5m | Added +43.9k |
| FIL Ltd 0.08% of their portfolio | 2.1m $73.6m | Added +623.2k |
| Clearbridge Investments, LLC 0.06% of their portfolio | 2.0m $69.8m | Reduced -753.0k |
| MORGAN STANLEY 0.01% of their portfolio | 1.7m $61.8m | Added +18.4k |
| Capital Research Global Investors 0.02% of their portfolio | 1.7m $60.5m | Added +690.3k |
| VIKING GLOBAL INVESTORS LP 0.23% of their portfolio | 1.6m $57.1m | Reduced -944.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 1.6m $56.2m | New |
| Deep Track Capital, LP 2.51% of their portfolio | 1.5m $53.7m | New |
| T. Rowe Price Investment Management, Inc. 0.04% of their portfolio | 1.5m $53.5m | New |
| JENNISON ASSOCIATES LLC 0.04% of their portfolio | 1.5m $53.2m | New |
| Parkwood LLC 0.17% of their portfolio | 1.3m $938.0k | New |
| DEERFIELD MANAGEMENT COMPANY, L.P. 0.96% of their portfolio | 1.3m $44.9m | Added +475.0k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 1.2m $44.1m | Added +32.1k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 1.1m $38.7m | Added +641.5k |
| TWO SIGMA INVESTMENTS, LP 0.10% of their portfolio | 1.0m $36.4m | Added +231.6k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.17% of their portfolio | 978.2k $35.0m | Reduced -66.3k |
| PICTET ASSET MANAGEMENT SA 0.04% of their portfolio | 943.0k $33.8m | Added +553.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 918.6k $32.9m | Added +312.9k |
| FEDERATED HERMES, INC. 0.08% of their portfolio | 909.0k $32.5m | Added +300.0k |
| Invesco Ltd. 0.01% of their portfolio | 890.6k $31.9m | Reduced -1.3m |
| LORD, ABBETT & CO. LLC 0.05% of their portfolio | 890.4k $31.9m | New |
| Fiera Capital Corp 0.09% of their portfolio | 888.0k $31.8m | Added +329.8k |
| Aristotle Atlantic Partners, LLC 1.16% of their portfolio | 857.6k $30.7m | Added +237.1k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 783.3k $28.0m | Added +504.1k |
| NORGES BANK 0.01% of their portfolio | 766.7k $27.4m | Reduced -278.6k |
| TWO SIGMA ADVISERS, LP 0.07% of their portfolio | 746.2k $26.7m | Added +359.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 688.0k $24.6m | Added +44.9k |
| Blue Water Life Science Advisors, LP 16.34% of their portfolio | 676.0k $24.2m | Added +185.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 660.9k $23.7m | Reduced -378.1k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 631.8k $22.6m | Reduced -301.1k |
| ARK Investment Management LLC 0.14% of their portfolio | 575.0k $20.6m | Reduced -8.3k |
| Erste Asset Management GmbH 0.36% of their portfolio | 572.6k $20.5m | Unchanged |
| Candriam S.C.A. 0.14% of their portfolio | 559.4k $20.0m | Added +38.2k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 552.0k $19.8m | Added +65.8k |
| RTW INVESTMENTS, LP 0.34% of their portfolio | 500.9k $17.9m | Added +70.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.10% of their portfolio | 495.7k $17.7m | Reduced -368.7k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 473.4k $16.9m | Added +104.3k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 458.8k $16.4m | Added +406.0k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 455.3k $16.3m | Added +84.2k |
| Eagle Health Investments LP 2.98% of their portfolio | 445.2k $15.9m | Reduced -151.4k |
| Integral Health Asset Management, LLC 1.94% of their portfolio | 412.0k $14.7m | Added +62.0k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 409.9k $14.7m | Added +142.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 386.6k $13.8m | New |
| Railway Pension Investments Ltd 0.14% of their portfolio | 379.1k $13.6m | Unchanged |
| MARSHALL WACE, LLP 0.03% of their portfolio | 353.3k $12.6m | Added +332.7k |
| Tekla Capital Management LLC 0.48% of their portfolio | 346.1k $12.4m | Reduced -126.1k |
| PRUDENTIAL FINANCIAL INC 0.02% of their portfolio | 324.4k $11.6m | New |
| Ghisallo Capital Management LLC 1.28% of their portfolio | 300.0k $10.7m | New |
| KINGDON CAPITAL MANAGEMENT, L.L.C. 1.86% of their portfolio | 297.0k $10.6m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 288.3k $6.8m | Unchanged |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 287.7k $10.3m | Added +50.6k |
| BRAIDWELL LP 0.32% of their portfolio | 270.0k $9.7m | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 249.0k $8.9m | Added +13.4k |
| Swiss National Bank 0.01% of their portfolio | 238.2k $8.5m | Added +28.1k |
| CAPITAL FUND MANAGEMENT S.A. 0.13% of their portfolio | 236.4k $8.5m | Added +8.1k |
| Trexquant Investment LP 0.22% of their portfolio | 231.6k $8.3m | Added +139.4k |
| TUDOR INVESTMENT CORP ET AL 0.13% of their portfolio | 216.0k $7.7m | Reduced -54.6k |
| BARCLAYS PLC 0.00% of their portfolio | 202.9k $7.3m | Added +50.4k |
| Rock Springs Capital Management LP 0.17% of their portfolio | 200.0k $7.2m | Unchanged |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 199.6k $7.1m | Reduced -41.8k |
| First Light Asset Management, LLC 0.55% of their portfolio | 197.7k $7.1m | Reduced -7.1k |
| LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio | 196.6k $7.0m | Reduced -197 |
| Legal & General Group Plc 0.00% of their portfolio | 177.1k $6.3m | Added +25.1k |
| TD Asset Management Inc 0.01% of their portfolio | 175.2k $6.3m | Added +79.1k |
| Polar Asset Management Partners Inc. 0.12% of their portfolio | 172.6k $6.2m | New |
| PDT Partners, LLC 0.79% of their portfolio | 160.3k $5.7m | Added +17.4k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 151.0k $5.4m | Added +29.3k |
| California Public Employees Retirement System 0.00% of their portfolio | 150.0k $5.4m | Added +9.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 141.1k $5.1m | Reduced -203.5k |
| PURA VIDA INVESTMENTS, LLC 2.07% of their portfolio | 139.6k $5.0m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 133.3k $4.8m | Added +11.3k |
| GUGGENHEIM CAPITAL LLC 0.04% of their portfolio | 133.0k $4.8m | Added +8.9k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.01% of their portfolio | 131.8k $4.7m | New |
| Holocene Advisors, LP 0.02% of their portfolio | 131.6k $4.7m | Added +91.8k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 128.8k $4.6m | Reduced -19.1k |
| RAYMOND JAMES & ASSOCIATES 0.00% of their portfolio | 124.4k $4.5m | Reduced -4.0k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 123.7k $4.4m | Reduced -122.5k |
| Granite Investment Partners, LLC 0.18% of their portfolio | 123.2k $4.4m | Reduced -8.6k |
| PRIMECAP MANAGEMENT CO/CA/ 0.00% of their portfolio | 123.0k $4.4m | Reduced -58.1k |
| Handelsbanken Fonder AB 0.02% of their portfolio | 114.1k $4.1m | Added +1.3k |
| Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio | 111.9k $4.0m | Added +3.7k |
| Amova Asset Management Americas, Inc. 0.04% of their portfolio | 111.9k $4.0m | Added +3.7k |
| Ergoteles LLC 0.19% of their portfolio | 111.6k $4.0m | New |
| UBS Group AG 0.00% of their portfolio | 111.4k $4.0m | Added +75.0k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 108.9k $3.9m | Added +2.6k |
| ExodusPoint Capital Management, LP 0.04% of their portfolio | 102.0k $3.7m | Reduced -51.6k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 101.3k $3.6m | Reduced -5.2k |
| Maven Securities LTD 0.51% of their portfolio | 100.0k $3.6m | New |