FULGENT GENETICS INC FLGT
COM · Common Stock · CUSIP 359664109 · ISIN US3596641098
Biotechnology company
- SectorHealth care
- IndustryServices-Medical Laboratories
- HeadquartersEl Monte, CA
- Founded2011
- Websitefulgentgenetics.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 ($738.6k this quarter). Holder counts are more reliable. Shares outstanding: 28.4m as of 2026-04-27, 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 ≈ $15.90. Options: 4 managers hold calls ($1.6m notional), 3 hold puts ($405.4k).
Trends to Q1 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 235 |
| Q4 2022 | 225 |
| Q1 2023 | 217 |
| Q2 2023 | 215 |
| Q3 2023 | 202 |
| Q4 2023 | 197 |
| Q1 2024 | 181 |
| Q2 2024 | 175 |
| Q3 2024 | 184 |
| Q4 2024 | 190 |
| Q1 2025 | 178 |
| Q2 2025 | 169 |
| Q3 2025 | 163 |
| Q4 2025 | 179 |
| Q1 2026 | 158 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 86 | 82 |
| Q3 2024 | 76 | 79 |
| Q4 2024 | 93 | 75 |
| Q1 2025 | 85 | 84 |
| Q2 2025 | 77 | 78 |
| Q3 2025 | 75 | 74 |
| Q4 2025 | 87 | 68 |
| Q1 2026 | 71 | 101 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $8.9m | $635.2k | 0.07 |
| Q3 2025 | $10.7m | $103.4k | 0.01 |
| Q4 2025 | $6.4m | $919.5k | 0.14 |
| Q1 2026 | $1.6m | $405.4k | 0.26 |
Biggest buyers
| Invenomic Capital Management LP | New | +610.3k |
| RTW INVESTMENTS, LP | Added | +584.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | New | +356.4k |
| JPMORGAN CHASE & CO | Added | +210.2k |
| Medina Value Partners, LLC | New | +170.1k |
| Diametric Capital, LP | Added | +160.9k |
| UBS Group AG | Added | +157.2k |
| Quantinno Capital Management LP | Added | +108.5k |
| Almitas Capital LLC | Added | +86.3k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +76.0k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -537.6k |
| Qube Research & Technologies Ltd | Sold out | -286.5k |
| Point72 Asset Management, L.P. | Sold out | -237.0k |
| Nuveen, LLC | Reduced | -227.6k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -217.3k |
| D. E. Shaw & Co., Inc. | Reduced | -214.5k |
| TWO SIGMA ADVISERS, LP | Sold out | -193.5k |
| CITADEL ADVISORS LLC | Reduced | -190.2k |
| BlackRock, Inc. | Reduced | -187.7k |
| JANE STREET GROUP, LLC | Sold out | -150.0k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $777.5k48.9k shares |
| GROUP ONE TRADING LLC | Reduced | $453.1k28.5k shares |
| CITADEL ADVISORS LLC | Reduced | $190.8k12.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $149.5k9.4k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $240.1k15.1k shares |
| CITADEL ADVISORS LLC | New | $162.2k10.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.2k200 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 |
|---|---|
Hsieh Ming
13D · may seek influence
+1.5 pts · filed 2026-05-27
Stated purposeThe Reporting Person holds the shares of Common Stock reported in this Statement for general investment purposes. The Reporting Person may, from time to time, acquire additional, or dispose of, shares of Common Stock or other securities of the Issuer, in the Reporting Person's capacity as Chief Executive Officer and Chairperson of the Board of the Issuer or otherwise, or engage in discussions with the Issuer concerning investments in the Issuer. The Reporting Person intends to review his ownership of Common Stock (including shares of Common Stock held through the Trust) on a continuing basis and, depending upon the price and availability of shares of Common Stock of the Issuer, subsequent developments affecting the Issuer, the Issuer's business and prospects, other investment and business … Full filing |
32.3% |
| BARCLAYS PLC 13G · institution +2.2 pts · filed 2025-05-13 | 7.6% |
| BlackRock, Inc. 13G · institution filed 2025-04-03 | 5.9% |
Fell to 5% or below in the last year: MILLENNIUM MANAGEMENT LLC (3.0%, 2026-02-04)
Insider purchases and sales in Q1 2026
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 |
|---|---|---|---|---|---|
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 4 | $203.5k | — |
| Q4 2024 | 0 | — | 3 | $117.5k | — |
| Q1 2025 | 1 | $1.6m | 0 | — | — |
| Q2 2025 | 0 | — | 2 | $98.1k | — |
| Q3 2025 | 0 | — | 2 | $121.0k | — |
| Q4 2025 | 0 | — | 2 | $454.1k | — |
| Q1 2026 | 0 | — | 0 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 2.8m $44.1m | Reduced -187.7k |
| RTW INVESTMENTS, LP 0.20% of their portfolio | 1.3m $20.5m | Added +584.0k |
| ACADIAN ASSET MANAGEMENT LLC 0.03% of their portfolio | 1.2m $19.6m | Added +48.1k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 880.1k $14.0m | First filing |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 671.7k $10.7m | Reduced -217.3k |
| Invenomic Capital Management LP 0.45% of their portfolio | 610.3k $9.7m | New |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 584.2k $9.3m | Added +76.0k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 563.4k $9.0m | Added +63.9k |
| STATE STREET CORP 0.00% of their portfolio | 529.4k $8.4m | Added +35.7k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 486.8k $7.7m | Reduced -214.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 460.4k $7.2m | Added +210.2k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 401.8k $6.4m | Reduced -537.6k |
| Diametric Capital, LP 1.50% of their portfolio | 361.0k $5.7m | Added +160.9k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.02% of their portfolio | 356.4k $5.7m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 354.2k $5.6m | Reduced -48.6k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 325.4k $5.2m | Reduced -113.5k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 322.2k $5.1m | Added +24.8k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 311.4k $5.0m | Reduced -37.1k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 302.6k $4.8m | Reduced -72.3k |
| UBS Group AG 0.00% of their portfolio | 240.8k $3.8m | Added +157.2k |
| Peapod Lane Capital LLC 2.86% of their portfolio | 220.6k $3.5m | Added +54.8k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 215.9k $3.4m | First filing |
| MORGAN STANLEY 0.00% of their portfolio | 192.4k $3.1m | Reduced -122.8k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 182.1k $2.9m | Added +3.3k |
| Allianz Asset Management GmbH 0.00% of their portfolio | 181.9k $2.9m | Added +48.4k |
| Medina Value Partners, LLC 0.57% of their portfolio | 170.1k $2.7m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 147.1k $2.3m | Added +26.4k |
| BARCLAYS PLC 0.00% of their portfolio | 141.0k $2.2m | Reduced -31.3k |
| Quantinno Capital Management LP 0.00% of their portfolio | 137.5k $2.2m | Added +108.5k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 129.5k $2.1m | First filing |
| TCW GROUP INC 0.02% of their portfolio | 126.6k $2.0m | Reduced -1.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 120.6k $1.9m | Reduced -32.3k |
| Portolan Capital Management, LLC 0.09% of their portfolio | 106.6k $1.7m | Reduced -62.9k |
| Almitas Capital LLC 0.38% of their portfolio | 104.8k $1.7m | Added +86.3k |
| Nuveen, LLC 0.00% of their portfolio | 104.0k $1.7m | Reduced -227.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 101.3k $1.6m | Added +1.0k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 93.5k $1.5m | Added +15.4k |
| XTX Topco Ltd 0.03% of their portfolio | 92.5k $1.5m | Added +70.3k |
| Hennion & Walsh Asset Management, Inc. 0.04% of their portfolio | 84.0k $1.3m | Added +17.8k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 76.3k $1.2m | Reduced -8.5k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 74.2k $1.2m | Reduced -320 |
| Jump Financial, LLC 0.02% of their portfolio | 71.8k $1.1m | Added +51.1k |
| Corient Private Wealth LP 0.00% of their portfolio | 69.7k $1.1m | New |
| Y-Intercept (Hong Kong) Ltd 0.02% of their portfolio | 67.7k $1.1m | New |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 65.2k $1.0m | Reduced -38.9k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 64.1k $1.0m | Reduced -52.0k |
| Invesco Ltd. 0.00% of their portfolio | 57.0k $906.0k | Reduced -5.0k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.07% of their portfolio | 56.3k $895.3k | Added +18.8k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 53.9k $857.7k | Reduced -790 |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 52.9k $841.9k | Reduced -190.2k |
| Squarepoint Ops LLC 0.00% of their portfolio | 52.5k $835.3k | Reduced -3.7k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 49.2k $782.4k | Added +2.1k |
| HRT FINANCIAL LP 0.00% of their portfolio | 46.4k $738.0k | Reduced -77.8k |
| MOORE CAPITAL MANAGEMENT, LP 0.03% of their portfolio | 46.1k $733.4k | New |
| LEVIN CAPITAL STRATEGIES, L.P. 0.05% of their portfolio | 43.2k $687.4k | New |
| Amundi 0.00% of their portfolio | 41.6k $661.4k | Added +6.1k |
| Swiss National Bank 0.00% of their portfolio | 39.2k $623.3k | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 38.1k $605.4k | Added +27.3k |
| Counterpoint Mutual Funds LLC 0.08% of their portfolio | 34.3k $545.5k | Added +15.1k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 33.7k $536.5k | Added +32.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 29.4k $468.2k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 29.4k $467.8k | Reduced -835 |
| Susquehanna Portfolio Strategies, LLC 0.01% of their portfolio | 28.9k $458.9k | Reduced -9.6k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 27.1k $431.6k | Reduced -1.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 26.7k $425.0k | Added +4.3k |
| ALPS ADVISORS INC 0.00% of their portfolio | 25.4k $404.2k | Added +36 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 24.6k $391.8k | Added +758 |
| Aquatic Capital Management LLC 0.01% of their portfolio | 23.2k $368.5k | Added +4.9k |
| Headlands Technologies LLC 0.04% of their portfolio | 22.3k $355.3k | Added +10.3k |
| Quadrature Capital Ltd 0.00% of their portfolio | 19.6k $312.3k | New |
| Legal & General Group Plc 0.00% of their portfolio | 18.8k $299.0k | Reduced -2.1k |
| SG Americas Securities, LLC 0.00% of their portfolio | 18.4k $292.0k | Added +14 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 18.1k $287.7k | Reduced -154 |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 18.0k $286.2k | Reduced -64.9k |
| CITIGROUP INC 0.00% of their portfolio | 17.4k $276.7k | Added +16.8k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 16.4k $261.2k | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 16.0k $420.9k | Reduced -2.4k |
| EntryPoint Capital, LLC 0.07% of their portfolio | 15.7k $250.3k | Added +8.1k |
| VIRGINIA RETIREMENT SYSTEMS ET Al 0.00% of their portfolio | 14.3k $227.6k | Reduced -11.3k |
| Creative Planning 0.00% of their portfolio | 14.2k $225.7k | Reduced -39.5k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 13.8k $219.1k | Reduced -91 |
| Polymer Capital Management (US) LLC 0.03% of their portfolio | 13.0k $206.2k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 12.6k $200.0k | Unchanged |
| Inscription Capital, LLC 0.02% of their portfolio | 12.4k $197.1k | New |
| Linden Thomas Advisory Services, LLC 0.02% of their portfolio | 11.9k $188.5k | New |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 11.8k $187.6k | First filing |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 10.9k $173.0k | Unchanged |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 10.7k $170.6k | Reduced -1.3k |
| Advisors Asset Management, Inc. 0.00% of their portfolio | 10.5k $166.6k | Added +2.0k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 10.2k $161.5k | Reduced -2.2k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 8.6k $136.8k | First filing |
| Freestone Grove Partners LP 0.00% of their portfolio | 8.4k $133.7k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 8.2k $130.0k | Unchanged |
| Quantbot Technologies LP 0.00% of their portfolio | 7.4k $117.8k | Added +7.4k |
| Vanguard Investments Australia, Ltd. 0.00% of their portfolio | 5.4k $85.1k | First filing |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 5.1k $80.8k | Unchanged |
| CWM, LLC 0.00% of their portfolio | 4.3k $68.5k | Added +4.1k |
| KLP KAPITALFORVALTNING AS 0.00% of their portfolio | 4.3k $68.4k | Unchanged |
| Versant Capital Management, Inc 0.00% of their portfolio | 2.7k $42.8k | Added +1.2k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 2.6k $42.0k | Unchanged |