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 ($14.9m this quarter). Holder counts are more reliable. Shares outstanding: 123.0m as of 2024-08-02, 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 ≈ $28.21. Options: 19 managers hold calls ($26.4m notional), 16 hold puts ($53.8m).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 329 |
| Q4 2022 | 293 |
| Q1 2023 | 281 |
| Q2 2023 | 303 |
| Q3 2023 | 299 |
| Q4 2023 | 296 |
| Q1 2024 | 260 |
| Q2 2024 | 284 |
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 |
| Q3 2023 | 145 | 139 |
| Q4 2023 | 120 | 164 |
| Q1 2024 | 130 | 164 |
| Q2 2024 | 148 | 132 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $25.2m | $9.1m | 0.36 |
| Q4 2023 | $21.9m | $17.1m | 0.78 |
| Q1 2024 | $63.3m | $42.2m | 0.67 |
| Q2 2024 | $26.4m | $53.8m | 2.03 |
Biggest buyers
| WELLINGTON MANAGEMENT GROUP LLP | New | +3.5m |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Added | +2.3m |
| FULLER & THALER ASSET MANAGEMENT, INC. | New | +1.9m |
| MILLENNIUM MANAGEMENT LLC | Added | +945.3k |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | New | +670.2k |
| Capital International Investors | Added | +645.8k |
| TWO SIGMA INVESTMENTS, LP | Added | +563.6k |
| JPMORGAN CHASE & CO | Added | +538.3k |
| CITADEL ADVISORS LLC | Added | +500.4k |
| MPM BIOIMPACT LLC | New | +500.0k |
Biggest sellers
| CADIAN CAPITAL MANAGEMENT, LP | Reduced | -2.7m |
| Deep Track Capital, LP | Reduced | -1.5m |
| MORGAN STANLEY | Reduced | -1.3m |
| Man Group plc | Sold out | -971.4k |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Sold out | -791.7k |
| Squarepoint Ops LLC | Reduced | -695.7k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | Reduced | -618.9k |
| Pictet Asset Management Holding SA | Reduced | -485.5k |
| Prosight Management, LP | Sold out | -470.0k |
| EVENTIDE ASSET MANAGEMENT, LLC | Reduced | -418.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.8m166.5k shares |
| GROUP ONE TRADING LLC | Reduced | $3.7m126.9k shares |
| PURA VIDA INVESTMENTS, LLC | Reduced | $2.9m100.0k shares |
| JANE STREET GROUP, LLC | Added | $2.4m83.4k shares |
| CITADEL ADVISORS LLC | Reduced | $1.9m66.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.7m59.7k shares |
| NOMURA HOLDINGS INC | Added | $1.7m59.4k shares |
| BOOTHBAY FUND MANAGEMENT, LLC | Reduced | $1.4m50.0k shares |
| BARCLAYS PLC | New | $1.3m45.5k shares |
| MILLENNIUM MANAGEMENT LLC | Added | $1.2m40.0k shares |
Biggest puts
| Parallax Volatility Advisers, L.P. | Added | $23.3m807.6k shares |
| CITADEL ADVISORS LLC | Added | $4.4m151.2k shares |
| Caption Management, LLC | Added | $4.4m150.7k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.2m145.4k shares |
| GROUP ONE TRADING LLC | Reduced | $3.8m133.1k shares |
| WOLVERINE ASSET MANAGEMENT LLC | Reduced | $3.2m110.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.8m98.6k shares |
| NOMURA HOLDINGS INC | Added | $2.3m78.9k shares |
| Walleye Capital LLC | Added | $1.4m49.0k shares |
| JANE STREET GROUP, LLC | Reduced | $1.2m41.9k 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 2024
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 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 |
| Q3 2023 | 0 | — | 2 | $72.8k | $3.5k |
| Q4 2023 | 0 | — | 2 | $155.6k | $2.6k |
| Q1 2024 | 1 | $39.0k | 1 | $1.9k | $1.9k |
| Q2 2024 | 0 | — | 1 | $2.8k | $2.8k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-04 | Joyce Meghan V. Director | Sold plan | $2.8k100 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 2024
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.01% of their portfolio | 11.6m $336.1m | Added +200.7k |
| BlackRock Inc. 0.01% of their portfolio | 11.2m $324.5m | Added +223.9k |
| BAILLIE GIFFORD & CO 0.14% of their portfolio | 6.1m $176.0m | Reduced -138.8k |
| Deep Track Capital, LP 3.88% of their portfolio | 4.5m $130.0m | Reduced -1.5m |
| Capital International Investors 0.03% of their portfolio | 4.5m $129.1m | Added +645.8k |
| EVENTIDE ASSET MANAGEMENT, LLC 1.86% of their portfolio | 3.8m $108.6m | Reduced -418.9k |
| Temasek Holdings (Private) Ltd 0.50% of their portfolio | 3.7m $108.3m | Reduced -362.1k |
| WELLINGTON MANAGEMENT GROUP LLP 0.02% of their portfolio | 3.5m $101.3m | New |
| CITADEL ADVISORS LLC 0.09% of their portfolio | 3.3m $95.0m | Added +500.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.03% of their portfolio | 3.2m $93.4m | Added +2.3m |
| CADIAN CAPITAL MANAGEMENT, LP 4.50% of their portfolio | 3.1m $90.4m | Reduced -2.7m |
| FMR LLC 0.01% of their portfolio | 3.1m $90.1m | Added +92.1k |
| BRAIDWELL LP 2.54% of their portfolio | 2.8m $81.1m | Added +331.2k |
| Parkwood LLC 0.27% of their portfolio | 2.8m $2.2m | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 2.8m $80.7m | Added +150.7k |
| STATE STREET CORP 0.00% of their portfolio | 2.8m $79.6m | Added +126.9k |
| MILLENNIUM MANAGEMENT LLC 0.05% of their portfolio | 2.1m $61.7m | Added +945.3k |
| FIL Ltd 0.06% of their portfolio | 2.1m $59.7m | Added +148.6k |
| MORGAN STANLEY 0.00% of their portfolio | 2.0m $58.4m | Reduced -1.3m |
| FULLER & THALER ASSET MANAGEMENT, INC. 0.24% of their portfolio | 1.9m $56.0m | New |
| Point72 Asset Management, L.P. 0.17% of their portfolio | 1.8m $52.4m | Added +388.6k |
| NORGES BANK 0.01% of their portfolio | 1.4m $40.0m | Added +214.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 1.4m $39.7m | Reduced -169.4k |
| Nuveen Asset Management, LLC 0.01% of their portfolio | 1.3m $37.8m | Added +492.2k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 1.3m $37.8m | Added +32.3k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.3m $37.0m | Added +309.2k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 1.2m $36.0m | Added +47.2k |
| Invesco Ltd. 0.01% of their portfolio | 1.2m $34.9m | Reduced -126.8k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 1.1m $31.0m | Added +58.1k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 1.1m $30.9m | Added +2.7k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 1.0m $29.8m | Reduced -14.2k |
| Erste Asset Management GmbH 0.36% of their portfolio | 932.6k $26.9m | Added +280.0k |
| FEDERATED HERMES, INC. 0.06% of their portfolio | 862.1k $24.9m | Reduced -44.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 858.8k $24.8m | Added +538.3k |
| TWO SIGMA INVESTMENTS, LP 0.06% of their portfolio | 814.5k $23.5m | Added +563.6k |
| TWO SIGMA ADVISERS, LP 0.05% of their portfolio | 770.8k $22.3m | Reduced -23.1k |
| Aristotle Atlantic Partners, LLC 0.70% of their portfolio | 749.2k $21.6m | Reduced -57.7k |
| KINGDON CAPITAL MANAGEMENT, L.L.C. 2.99% of their portfolio | 670.2k $19.4m | New |
| Pictet Asset Management Holding SA 0.02% of their portfolio | 664.1k $19.2m | Reduced -485.5k |
| Eagle Health Investments LP 3.24% of their portfolio | 626.9k $18.1m | Reduced -103.3k |
| Railway Pension Investments Ltd 0.21% of their portfolio | 620.9k $17.9m | Added +241.8k |
| Trexquant Investment LP 0.26% of their portfolio | 584.9k $16.9m | Added +312.4k |
| Blue Water Life Science Advisors, LP 16.04% of their portfolio | 571.0k $16.5m | Unchanged |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.06% of their portfolio | 542.0k $15.7m | Reduced -618.9k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.01% of their portfolio | 513.3k $14.8m | Reduced -19.2k |
| MPM BIOIMPACT LLC 2.24% of their portfolio | 500.0k $14.4m | New |
| JENNISON ASSOCIATES LLC 0.01% of their portfolio | 497.1k $14.4m | Added +7.4k |
| BARCLAYS PLC 0.01% of their portfolio | 477.4k $13.8m | Reduced -417.5k |
| ARK Investment Management LLC 0.12% of their portfolio | 453.6k $13.1m | Added +92.4k |
| ExodusPoint Capital Management, LP 0.14% of their portfolio | 440.4k $12.7m | Added +420.1k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 430.5k $12.4m | Reduced -99.1k |
| First Light Asset Management, LLC 1.06% of their portfolio | 417.0k $12.0m | Added +227.2k |
| Cubist Systematic Strategies, LLC 0.19% of their portfolio | 374.1k $10.8m | Added +308.6k |
| Aberdeen Group plc 0.02% of their portfolio | 373.6k $10.8m | Reduced -84.2k |
| Candriam S.C.A. 0.06% of their portfolio | 366.1k $10.6m | Reduced -100.0k |
| Mitsubishi UFJ Trust & Banking Corp 0.02% of their portfolio | 339.1k $9.8m | Reduced -63.2k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.02% of their portfolio | 299.8k $8.7m | Reduced -17.0k |
| Beck Bode, LLC 1.56% of their portfolio | 269.4k $7.8m | Added +65.8k |
| Swiss National Bank 0.00% of their portfolio | 239.4k $6.9m | Added +11.7k |
| TUDOR INVESTMENT CORP ET AL 0.08% of their portfolio | 239.2k $6.9m | New |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 216.2k $6.2m | Added +112.9k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 204.0k $5.9m | Reduced -5.3k |
| FRED ALGER MANAGEMENT, LLC 0.03% of their portfolio | 198.5k $5.7m | Added +64.2k |
| Granahan Investment Management, LLC 0.21% of their portfolio | 181.2k $5.2m | Reduced -17.3k |
| CAPITAL FUND MANAGEMENT S.A. 0.06% of their portfolio | 178.2k $5.1m | Reduced -133.8k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 173.3k $5.0m | Added +10.2k |
| Legal & General Group Plc 0.00% of their portfolio | 171.1k $4.9m | Reduced -11.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 159.6k $4.6m | Added +18.0k |
| California Public Employees Retirement System 0.00% of their portfolio | 153.8k $4.4m | Reduced -12.7k |
| TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY 0.04% of their portfolio | 153.0k $4.4m | Unchanged |
| Hood River Capital Management LLC 0.09% of their portfolio | 146.7k $4.2m | New |
| Sicart Associates LLC 1.62% of their portfolio | 146.0k $4.2m | Reduced -609 |
| PDT Partners, LLC 0.40% of their portfolio | 144.6k $4.2m | Added +75.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 143.7k $4.2m | Added +12.4k |
| GUGGENHEIM CAPITAL LLC 0.03% of their portfolio | 137.8k $4.0m | Reduced -17.4k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 136.3k $3.9m | Reduced -1.5k |
| Polar Asset Management Partners Inc. 0.10% of their portfolio | 134.0k $3.9m | Reduced -47.8k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 131.8k $3.8m | Added +1.6k |
| Cerity Partners LLC 0.01% of their portfolio | 126.1k $3.6m | Reduced -62.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 118.5k $3.4m | Added +3.5k |
| Pier Capital, LLC 0.50% of their portfolio | 115.9k $3.3m | New |
| Rathbones Group PLC 0.02% of their portfolio | 108.4k $3.1m | Added +4.7k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 106.6k $3.1m | Reduced -265 |
| Holocene Advisors, LP 0.01% of their portfolio | 102.9k $3.0m | Reduced -101.5k |
| Casdin Capital, LLC 0.22% of their portfolio | 100.0k $2.9m | New |
| Eversept Partners, LP 0.22% of their portfolio | 99.4k $2.9m | Reduced -350.2k |
| Edgestream Partners, L.P. 0.13% of their portfolio | 96.5k $2.8m | Added +49.6k |
| Engineers Gate Manager LP 0.06% of their portfolio | 95.7k $2.8m | Reduced -62.6k |
| ALGERT GLOBAL LLC 0.09% of their portfolio | 90.2k $2.6m | Added +17.0k |
| Sumitomo Mitsui Trust Group, Inc. 0.00% of their portfolio | 88.7k $2.6m | Reduced -229.0k |
| Amova Asset Management Americas, Inc. 0.03% of their portfolio | 88.7k $2.6m | Added +4.6k |
| Gotham Asset Management, LLC 0.03% of their portfolio | 84.7k $2.4m | New |
| Exome Asset Management LLC 2.03% of their portfolio | 79.0k $2.3m | Unchanged |
| SWS Partners 0.68% of their portfolio | 78.9k $2.3m | Added +33.4k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 72.0k $2.1m | Added +48.2k |
| WOLVERINE TRADING, LLC 0.03% of their portfolio | 72.0k $2.1m | Added +58.7k |
| State of New Jersey Common Pension Fund D 0.01% of their portfolio | 71.3k $2.1m | Reduced -67.2k |
| Adalta Capital Management LLC 1.12% of their portfolio | 71.0k $2.1m | Unchanged |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 69.7k $2.0m | Reduced -22.4k |
| MetLife Investment Management, LLC 0.01% of their portfolio | 68.1k $2.0m | Added +9.5k |