Who owns Guardant Health (GH)
Which tracked institutional funds hold GH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See GH company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on GH is one-sided between 2026-Q1 and 2026-Q2: 297 added or opened and 79 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
GH’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.1pp gap the other way — the median holder sizes GH more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in GH divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 562 tracked filers holding GH, 330 increased or opened the position and 251 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in GH between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 64
- BOUSSARD & GAVAUDAN GESTION SAS$60M
- 1832 Asset Management L.P.$55M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$51M
- Clearbridge Investments, LLC$42M
- Stephens Investment Management Group LLC$38M
- Science & Technology Partners, L.P.$31M
Full exits 43
- LORD, ABBETT & CO. LLC$175M
- T. Rowe Price Investment Management, Inc.$70M
- RENAISSANCE TECHNOLOGIES LLC$31M
- Styrax Capital, LP$28M
- AGF MANAGEMENT LTD$18M
- TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY$14M
Largest adds
- FMR LLC$443M
- BlackRock, Inc.$354M
- VANGUARD CAPITAL MANAGEMENT LLC$344M
- AMERIPRISE FINANCIAL INC$342M
- PRICE T ROWE ASSOCIATES INC /MD/$329M
- VANGUARD PORTFOLIO MANAGEMENT LLC$278M
Largest trims
- ALLIANCEBERNSTEIN L.P.$66M
- Alyeska Investment Group, L.P.$40M
- BNP PARIBAS FINANCIAL MARKETS$26M
- BRAIDWELL LP$24M
- EMERALD ADVISERS, LLC$23M
- PERCEPTIVE ADVISORS LLC$22M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 7,622,935 | $1.1B | 6.3% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 6,514,952 | $977M | 5.4% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 5,755,857 | $864M | 4.8% | 2026-Q2 |
| FMR LLC added | 5,488,272 | $823M | 4.6% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 5,445,785 | $817M | 4.5% | 2026-Q2 |
| Invesco Ltd. trimmed | 4,429,755 | $665M | 3.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 3,775,895 | $566M | 3.1% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP trimmed | 3,719,301 | $558M | 3.1% | 2026-Q2 |
| Capital International Investors trimmed | 3,399,604 | $510M | 2.8% | 2026-Q2 |
| Deep Track Capital, LP added | 3,393,312 | $509M | 2.8% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 3,236,065 | $486M | 2.7% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 3,150,897 | $473M | 2.6% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 2,629,007 | $394M | 2.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 2,521,596 | $378M | 2.1% | 2026-Q2 |
| BAILLIE GIFFORD & CO trimmed | 2,284,127 | $343M | 1.9% | 2026-Q2 |
| STATE STREET CORP trimmed | 2,263,504 | $340M | 1.9% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 1,999,178 | $300M | 1.7% | 2026-Q2 |
| EVENTIDE ASSET MANAGEMENT, LLC trimmed | 1,957,828 | $294M | 1.6% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 1,783,444 | $268M | 1.5% | 2026-Q2 |
| WESTFIELD CAPITAL MANAGEMENT CO LP added | 1,624,459 | $244M | 1.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 1,622,458 | $243M | 1.4% | 2026-Q2 |
| NORGES BANK added | 1,548,518 | $232M | 1.3% | 2026-Q2 |
| Driehaus Capital Management LLC added | 1,533,985 | $230M | 1.3% | 2026-Q2 |
| RTW INVESTMENTS, LP | 1,481,033 | $222M | 1.2% | 2026-Q2 |
| Artisan Partners Limited Partnership added | 1,478,928 | $222M | 1.2% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,449,534 | $217M | 1.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 1,439,787 | $216M | 1.2% | 2026-Q2 |
| Hood River Capital Management LLC added | 1,395,307 | $209M | 1.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 1,395,240 | $129M | 0.7% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 1,390,337 | $209M | 1.2% | 2026-Q2 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC added | 1,311,320 | $197M | 1.1% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 1,268,587 | $190M | 1.1% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 1,255,658 | $188M | 1.0% | 2026-Q2 |
| MORGAN STANLEY trimmed | 1,088,477 | $163M | 0.9% | 2026-Q2 |
| Temasek Holdings (Private) Ltd added | 1,023,927 | $154M | 0.9% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 994,688 | $149M | 0.8% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 976,793 | $147M | 0.8% | 2026-Q2 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC added | 967,697 | $145M | 0.8% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 920,807 | $138M | 0.8% | 2026-Q2 |
| UBS Group AG trimmed | 866,046 | $130M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO trimmed | 848,468 | $127M | 0.7% | 2026-Q2 |
| CADIAN CAPITAL MANAGEMENT, LP trimmed | 757,393 | $114M | 0.6% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 743,769 | $112M | 0.6% | 2026-Q2 |
| Alyeska Investment Group, L.P. trimmed | 647,818 | $97M | 0.5% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC added | 646,509 | $110M | 0.6% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 644,138 | $97M | 0.5% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 621,500 | $93M | 0.5% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 608,695 | $91M | 0.5% | 2026-Q2 |
| ORBIMED ADVISORS LLC added | 583,700 | $88M | 0.5% | 2026-Q2 |
| Squarepoint Ops LLC added | 580,133 | $87M | 0.5% | 2026-Q2 |
| Erste Asset Management GmbH trimmed | 577,313 | $89M | 0.5% | 2026-Q2 |
| SAMLYN CAPITAL, LLC added | 561,876 | $84M | 0.5% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 549,088 | $85M | 0.5% | 2026-Q2 |
| ARK Investment Management LLC added | 506,416 | $76M | 0.4% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 480,839 | $72M | 0.4% | 2026-Q2 |
| BROWN ADVISORY INC added | 445,558 | $67M | 0.4% | 2026-Q2 |
| Aristotle Atlantic Partners, LLC trimmed | 442,816 | $66M | 0.4% | 2026-Q2 |
| First Light Asset Management, LLC added | 441,586 | $66M | 0.4% | 2026-Q2 |
| FRED ALGER MANAGEMENT, LLC trimmed | 416,566 | $62M | 0.3% | 2026-Q2 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 404,816 | $61M | 0.3% | 2026-Q2 |
| Amova Asset Management Americas, Inc. trimmed | 403,817 | $61M | 0.3% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 391,974 | $59M | 0.3% | 2026-Q2 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. trimmed | 371,763 | $56M | 0.3% | 2026-Q2 |
| 1832 Asset Management L.P. added | 369,000 | $55M | 0.3% | 2026-Q2 |
| EMERALD ADVISERS, LLC trimmed | 364,022 | $55M | 0.3% | 2026-Q2 |
| JENNISON ASSOCIATES LLC added | 356,001 | $53M | 0.3% | 2026-Q2 |
| SEI INVESTMENTS CO added | 346,438 | $52M | 0.3% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP new | 341,574 | $51M | 0.3% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 337,197 | $51M | 0.3% | 2026-Q2 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 330,145 | $50M | 0.3% | 2026-Q2 |
| FARALLON CAPITAL MANAGEMENT, L.L.C. added | 322,200 | $48M | 0.3% | 2026-Q2 |
| Eagle Health Investments LP trimmed | 300,685 | $45M | 0.3% | 2026-Q2 |
| Nuveen, LLC trimmed | 289,325 | $43M | 0.2% | 2026-Q2 |
| Clearbridge Investments, LLC new | 280,294 | $42M | 0.2% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 274,052 | $41M | 0.2% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 272,671 | $41M | 0.2% | 2026-Q2 |
| EMERALD MUTUAL FUND ADVISERS TRUST trimmed | 271,380 | $41M | 0.2% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 264,263 | $40M | 0.2% | 2026-Q2 |
| Stephens Investment Management Group LLC new | 254,310 | $38M | 0.2% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH added | 250,012 | $38M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 243,500 | $37M | 0.2% | 2026-Q2 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 236,340 | $35M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 231,600 | $35M | 0.2% | 2026-Q2 |
| Sicart Associates LLC added | 231,015 | $35M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System added | 228,884 | $34M | 0.2% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 215,395 | $32M | 0.2% | 2026-Q2 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 210,541 | $32M | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 210,062 | $32M | 0.2% | 2026-Q2 |
| Science & Technology Partners, L.P. added | 208,817 | $31M | 0.2% | 2026-Q2 |
| NEXT CENTURY GROWTH INVESTORS LLC added | 200,672 | $30M | 0.2% | 2026-Q2 |
| TREMBLANT CAPITAL GROUP new | 197,795 | $30M | 0.2% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT trimmed | 191,876 | $29M | 0.2% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 185,430 | $28M | 0.2% | 2026-Q2 |
| MARSHALL WACE, LLP added | 185,150 | $28M | 0.2% | 2026-Q2 |
| Casdin Capital, LLC trimmed | 185,000 | $28M | 0.2% | 2026-Q2 |
| Atika Capital Management LLC added | 181,000 | $27M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 179,490 | $27M | 0.1% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 179,482 | $27M | 0.1% | 2026-Q2 |
| BLAIR WILLIAM & CO/IL added | 179,266 | $27M | 0.1% | 2026-Q2 |
| BOUSSARD & GAVAUDAN GESTION SAS new | 23,950 | $60M | 0.3% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.