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 ($817.8k this quarter). Holder counts are more reliable. Shares outstanding: 30.9m as of 2025-11-03, 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 ≈ $26.27. Options: 6 managers hold calls ($6.4m notional), 3 hold puts ($919.5k).
Trends to Q4 2025
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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2024 | 75 | 100 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2025 | $6.9m | $934.5k | 0.13 |
| Q2 2025 | $8.9m | $635.2k | 0.07 |
| Q3 2025 | $10.7m | $103.4k | 0.01 |
| Q4 2025 | $6.4m | $919.5k | 0.14 |
Biggest buyers
| RTW INVESTMENTS, LP | New | +705.0k |
| Qube Research & Technologies Ltd | Added | +201.5k |
| Portolan Capital Management, LLC | New | +169.6k |
| GOLDMAN SACHS GROUP INC | Added | +164.5k |
| TWO SIGMA INVESTMENTS, LP | Added | +139.7k |
| D. E. Shaw & Co., Inc. | Added | +133.5k |
| TWO SIGMA ADVISERS, LP | Added | +107.2k |
| WELLS FARGO & COMPANY/MN | Added | +87.3k |
| RENAISSANCE TECHNOLOGIES LLC | New | +82.9k |
| VANGUARD GROUP INC | Added | +80.8k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -529.5k |
| JPMORGAN CHASE & CO | Reduced | -347.9k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -244.1k |
| Point72 Asset Management, L.P. | Reduced | -134.3k |
| CITADEL ADVISORS LLC | Reduced | -128.4k |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | -110.5k |
| DEUTSCHE BANK AG\ | Reduced | -65.5k |
| Walleye Capital LLC | Sold out | -64.8k |
| GSA CAPITAL PARTNERS LLP | Reduced | -61.2k |
| TUDOR INVESTMENT CORP ET AL | Reduced | -55.4k |
Biggest calls
| GROUP ONE TRADING LLC | Reduced | $2.3m87.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $1.4m52.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.4m51.5k shares |
| IMC-Chicago, LLC | New | $583.2k22.2k shares |
| CITADEL ADVISORS LLC | Reduced | $475.5k18.1k shares |
| JANE STREET GROUP, LLC | Reduced | $275.8k10.5k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $496.5k18.9k shares |
| SIMPLEX TRADING, LLC | Added | $302.1k11.5k shares |
| GROUP ONE TRADING LLC | Added | $120.8k4.6k 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 Q4 2025
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 |
|---|---|---|---|---|---|
| Q1 2024 | 0 | — | 0 | — | — |
| 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 | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-12-02 | Xie Jian President and COO | Sold | $32.3k1.1k shares |
| 2025-12-02 | Gao Hanlin Chief Scientific Officer | Sold | $30.5k1.1k shares |
| 2025-11-28 | Xie Jian President and COO | Sold | $35.4k1.2k shares |
| 2025-11-28 | Gao Hanlin Chief Scientific Officer | Sold | $27.9k943 shares |
| 2025-11-24 | Xie Jian President and COO | Sold | $20.8k681 shares |
| 2025-11-24 | Gao Hanlin Chief Scientific Officer | Sold | $16.3k535 shares |
| 2025-11-19 | Xie Jian President and COO | Sold | $291.0k10.0k 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, Q4 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 3.0m $77.8m | Reduced -13.2k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.3m $33.1m | Added +80.8k |
| ACADIAN ASSET MANAGEMENT LLC 0.05% of their portfolio | 1.2m $31.1m | Added +45.7k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 939.4k $24.7m | Reduced -529.5k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 889.0k $23.4m | Reduced -244.1k |
| RTW INVESTMENTS, LP 0.19% of their portfolio | 705.0k $18.5m | New |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 701.3k $18.4m | Added +133.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 508.2k $13.4m | Added +6.6k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 499.5k $13.1m | Added +4.6k |
| STATE STREET CORP 0.00% of their portfolio | 493.7k $13.0m | Reduced -8.3k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 439.0k $11.5m | Reduced -65.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 402.8k $10.6m | Added +43.5k |
| Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio | 374.8k $9.8m | Added +43.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 348.5k $9.2m | Added +164.5k |
| Nuveen, LLC 0.00% of their portfolio | 331.6k $8.7m | Added +40.8k |
| MORGAN STANLEY 0.00% of their portfolio | 315.3k $8.3m | Added +38.7k |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 297.4k $7.8m | Added +139.7k |
| Qube Research & Technologies Ltd 0.01% of their portfolio | 286.5k $7.5m | Added +201.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 250.1k $6.6m | Reduced -347.9k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 243.1k $6.4m | Reduced -128.4k |
| Point72 Asset Management, L.P. 0.01% of their portfolio | 237.0k $6.2m | Reduced -134.3k |
| Diametric Capital, LP 1.41% of their portfolio | 200.2k $5.3m | Reduced -41.5k |
| TWO SIGMA ADVISERS, LP 0.01% of their portfolio | 193.5k $5.1m | Added +107.2k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 178.8k $4.7m | Reduced -22.0k |
| BARCLAYS PLC 0.00% of their portfolio | 172.3k $4.5m | Reduced -6.6k |
| Portolan Capital Management, LLC 0.24% of their portfolio | 169.6k $4.5m | New |
| Peapod Lane Capital LLC 3.71% of their portfolio | 165.8k $4.4m | Added +1.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 152.9k $4.0m | Reduced -3.3k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 150.0k $3.9m | Added +23.0k |
| Trexquant Investment LP 0.03% of their portfolio | 140.7k $3.7m | Reduced -31.6k |
| Allianz Asset Management GmbH 0.00% of their portfolio | 133.5k $3.5m | Added +42.6k |
| TCW GROUP INC 0.02% of their portfolio | 128.4k $3.4m | Unchanged |
| Brandywine Global Investment Management, LLC 0.02% of their portfolio | 125.2k $3.3m | Reduced -4.7k |
| HRT FINANCIAL LP 0.01% of their portfolio | 124.2k $3.3m | Added +17.9k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 120.8k $3.2m | Added +87.3k |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 116.0k $3.0m | Reduced -55.4k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 104.1k $2.7m | Added +26.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 100.3k $2.6m | Added +43.0k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 84.7k $2.2m | Added +5.7k |
| UBS Group AG 0.00% of their portfolio | 83.6k $2.2m | Added +62.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 82.9k $2.2m | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 78.0k $2.1m | Reduced -21.6k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 74.6k $2.0m | Added +149 |
| Hennion & Walsh Asset Management, Inc. 0.06% of their portfolio | 66.2k $1.7m | New |
| Invesco Ltd. 0.00% of their portfolio | 62.0k $1.6m | Reduced -7.2k |
| Squarepoint Ops LLC 0.00% of their portfolio | 56.2k $1.5m | Added +6.9k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 54.7k $1.4m | Reduced -3.9k |
| Creative Planning 0.00% of their portfolio | 53.7k $1.4m | Added +2.4k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 47.1k $1.2m | Added +552 |
| AlphaQuest LLC 0.06% of their portfolio | 39.5k $1.0m | Added +14.5k |
| Swiss National Bank 0.00% of their portfolio | 39.2k $1.0m | Added +1.2k |
| Susquehanna Portfolio Strategies, LLC 0.02% of their portfolio | 38.5k $1.0m | Added +4.6k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.07% of their portfolio | 37.5k $985.0k | Reduced -31.7k |
| Amundi 0.00% of their portfolio | 35.5k $933.2k | New |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 30.5k $801.3k | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 30.3k $794.9k | Reduced -110.5k |
| Quantinno Capital Management LP 0.00% of their portfolio | 29.0k $760.8k | Added +3.1k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 28.7k $753.0k | Reduced -4.3k |
| Campbell & CO Investment Adviser LLC 0.03% of their portfolio | 27.0k $709.7k | Added +5.4k |
| Verition Fund Management LLC 0.00% of their portfolio | 26.1k $685.3k | Reduced -3.2k |
| VIRGINIA RETIREMENT SYSTEMS ET Al 0.00% of their portfolio | 25.6k $672.9k | Reduced -2.5k |
| ALPS ADVISORS INC 0.00% of their portfolio | 25.4k $666.9k | Added +10.8k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 23.9k $627.4k | Reduced -456 |
| STRS OHIO 0.00% of their portfolio | 22.9k $601.6k | Added +22.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 22.4k $589.0k | Added +1.5k |
| XTX Topco Ltd 0.02% of their portfolio | 22.2k $583.1k | Added +5.5k |
| Legal & General Group Plc 0.00% of their portfolio | 21.0k $550.5k | Reduced -69 |
| Jump Financial, LLC 0.01% of their portfolio | 20.7k $543.8k | Reduced -19.7k |
| GSA CAPITAL PARTNERS LLP 0.05% of their portfolio | 20.3k $533.0k | Reduced -61.2k |
| Counterpoint Mutual Funds LLC 0.04% of their portfolio | 19.2k $505.7k | New |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 19.0k $498.8k | Unchanged |
| Almitas Capital LLC 0.11% of their portfolio | 18.5k $485.4k | Reduced -24.5k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 18.5k $484.9k | Reduced -4.8k |
| SG Americas Securities, LLC 0.00% of their portfolio | 18.3k $482.0k | Reduced -825 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 18.2k $479.4k | Reduced -255 |
| Aquatic Capital Management LLC 0.01% of their portfolio | 18.2k $479.1k | Reduced -24.5k |
| Engineers Gate Manager LP 0.01% of their portfolio | 17.0k $446.4k | Added +3.3k |
| ExodusPoint Capital Management, LP 0.00% of their portfolio | 14.0k $367.1k | New |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 13.9k $364.3k | Added +3.0k |
| ALGERT GLOBAL LLC 0.01% of their portfolio | 13.7k $359.8k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 12.6k $330.4k | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.00% of their portfolio | 12.3k $323.6k | New |
| Magnetar Financial LLC 0.00% of their portfolio | 12.2k $320.7k | New |
| Headlands Technologies LLC 0.03% of their portfolio | 12.0k $316.4k | Added +2.6k |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 12.0k $317.9k | Reduced -129 |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio | 10.9k $285.8k | Added +2.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 10.8k $282.9k | Reduced -9.5k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.01% of their portfolio | 10.6k $278.1k | Reduced -8.8k |
| Prime Capital Investment Advisors, LLC 0.00% of their portfolio | 10.2k $267.6k | Unchanged |
| OXFORD ASSET MANAGEMENT LLP 0.09% of their portfolio | 9.7k $254.1k | Not comparable |
| R Squared Ltd 0.12% of their portfolio | 9.5k $249.7k | Reduced -1.6k |
| INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 9.3k $243.3k | Reduced -1.1k |
| FOX RUN MANAGEMENT, L.L.C. 0.04% of their portfolio | 9.0k $236.2k | New |
| Unison Advisors LLC 0.02% of their portfolio | 8.8k $230.0k | New |
| Advisors Asset Management, Inc. 0.00% of their portfolio | 8.5k $222.9k | Added +8.1k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 8.3k $187.6k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 8.2k $214.7k | Unchanged |
| Ancora Advisors LLC 0.00% of their portfolio | 8.1k $212.8k | New |
| PharVision Advisers, LLC 0.11% of their portfolio | 8.0k $208.9k | New |
| EntryPoint Capital, LLC 0.08% of their portfolio | 7.6k $200.7k | Reduced -1.7k |