Insider Screener
Real-time Form 4 Filtering Engine
| Filing Date | Trade Date | Ticker | Company Name | Reporting Person | Relationship | Industry (by SEC) | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-04-01 20:16 | 2026-03-30 | LODE | Comstock Inc. | Merrill Judd | Officer; Chief Financial Officer | Industrial Organic Chemicals | BUY | $3.08 | 3,700 | $11,396 | 4,210 | +725.5% |
| 2026-04-01 19:35 | 2026-03-30 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner; CEO, President, Chairman | Surgical & Medical Instruments & Apparatus | SALE | $95.02 | 7,500 | $712,614 | 2,225,000 | -0.3% |
| 2026-04-01 13:44 | 2026-03-16 | HBIO | HARVARD BIOSCIENCE INC | Frost Mark T | Officer; Chief Financial Officer | Laboratory Analytical Instruments | BUY | $5.00 | 5,000 | $25,000 | 17,500 | +40.0% |
| 2026-04-01 13:25 | 2026-03-31 | REX | REX AMERICAN RESOURCES Corp | BRUGGEMAN DOUGLAS | Officer; CFO, VP-Finance, Treasurer | Industrial Organic Chemicals | SALE | $45.41 | 5,000 | $227,050 | 261,170 | -1.9% |
| 2026-03-31 21:19 | 2026-03-23 | BLFS | BIOLIFE SOLUTIONS INC | Foster Karen A. | Officer; Chief Quality and Operations | Electromedical & Electrotherapeutic Apparatus | SALE | $19.17 | 2,577 | $49,401 | 108,758 | -2.3% |
| 2026-03-31 20:16 | 2026-03-30 | PLRZ | Polyrizon Ltd. | Turgeman Tidhar | Director, Officer; Chief Technology Officer | Surgical & Medical Instruments & Apparatus | SALE | $10.90 | 2,917 | $31,795 | 17,518 | -14.3% |
| 2026-03-31 20:17 | 2026-03-30 | PLRZ | Polyrizon Ltd. | Izraeli Tomer | Director, Officer; Chief Executive Officer | Surgical & Medical Instruments & Apparatus | SALE | $10.90 | 3,900 | $42,510 | 32,012 | -10.9% |
| 2026-03-31 20:17 | 2026-03-30 | PLRZ | Polyrizon Ltd. | Carmel Liron | Director | Surgical & Medical Instruments & Apparatus | SALE | $11.00 | 100 | $1,100 | 4,069 | -2.4% |
| 2026-03-31 20:01 | 2026-03-30 | LWLG | Lightwave Logic, Inc. | Quan Snizhana P. | Officer; Principal Financial Officer | Miscellaneous Plastics Products | OPT+S | $7.27 | 25,000 | $181,750 | 51,125 | -32.8% |
| 2026-03-31 13:48 | 2026-03-27 | WLK | WESTLAKE CORP | Buesinger Robert F. | Officer; EVP, PEM Segment Head | Industrial Organic Chemicals | SALE | $115.25 | 4,000 | $461,000 | 34,482 | -10.4% |
| 2026-03-30 21:57 | 2026-03-26 | LXU | LSB INDUSTRIES, INC. | Boehly Todd L | 10% owner | Industrial Inorganic Chemicals | SALE | $14.85 | 4,889,159 | $72,604,011 | 10,374,334 | -32.0% |
| 2026-03-31 01:16 | 2026-03-26 | VERO | Venus Concept Inc. | Madryn Asset Management, LP | 10% owner | Surgical & Medical Instruments & Apparatus | BUY | $0.04 | 37,537,187 | $1,501,487 | 37,547,373 | +368,517.4% |
| 2026-03-30 23:41 | 2026-03-30 | STIM | Neuronetics, Inc. | Chernett Jorey | 10% owner | Surgical & Medical Instruments & Apparatus | BUY | $1.25 | 385,442 | $481,803 | 9,778,988 | +4.1% |
| 2026-03-30 23:49 | 2026-03-19 | AHCO | AdaptHealth Corp. | OEP VII GP, L.L.C. | 10% owner | Services-Home Health Care Services | BUY | $9.91 | 447,827 | $4,438,906 | 16,312,698 | +2.8% |
| 2026-03-30 23:32 | 2026-03-10 | AHCO | AdaptHealth Corp. | OEP VII GP, L.L.C. | 10% owner | Services-Home Health Care Services | BUY | $9.73 | 2,046,691 | $19,912,052 | 15,864,871 | +14.8% |
| 2026-03-30 22:29 | 2026-03-26 | CSTL | CASTLE BIOSCIENCES INC | MAETZOLD DEREK J | Director, Officer; Pres. & Chief Exec. Officer | Services-Medical Laboratories | OPT+S | $25.55 | 4,172 | $106,599 | 3,058 | -57.7% |
| 2026-03-30 22:06 | 2026-03-26 | KMTS | KESTRA MEDICAL TECHNOLOGIES, LTD. | COHEN RAYMOND W | Director | Surgical & Medical Instruments & Apparatus | BUY | $19.98 | 10,000 | $199,800 | 50,903 | +24.4% |
| 2026-03-30 21:38 | 2026-03-26 | WGS | GeneDx Holdings Corp. | Feeley Kevin | Officer; CHIEF FINANCIAL OFFICER | Services-Health Services | OPT+S | $63.17 | 8,818 | $557,052 | 34,580 | -20.3% |
| 2026-03-30 21:30 | 2026-03-26 | WGS | GeneDx Holdings Corp. | Stueland Katherine | Director, Officer; CHIEF EXECUTIVE OFFICER | Services-Health Services | OPT+S | $63.17 | 46,933 | $2,964,842 | 91,514 | -33.9% |
| 2026-03-30 21:31 | 2026-03-27 | ALNT | ALLIENT INC | Bendre Ashish | Officer; VP and Group President | Instruments For Meas & Testing of Electricity & Elec Signals | SALE | $63.00 | 6,000 | $378,000 | 20,198 | -22.9% |
| 2026-03-30 20:10 | 2026-03-27 | WLK | WESTLAKE CORP | Bender Mark Steven | Officer; EVP & CFO | Industrial Organic Chemicals | SALE | $112.54 | 16,413 | $1,847,037 | 28,015 | -36.9% |
| 2026-03-30 16:54 | 2026-03-27 | LH | LABCORP HOLDINGS INC. | Wilkinson Peter J | Officer; SVP, Chief Accounting Officer | Services-Medical Laboratories | SALE | $267.05 | 1,633 | $436,093 | 1,852 | -46.9% |
| 2026-03-30 16:42 | 2026-03-27 | CHE | CHEMED CORP | MCNAMARA KEVIN J | Director, Officer; president and CEO | Services-Home Health Care Services | SALE | $369.37 | 1,500 | $554,055 | 92,219 | -1.6% |
| 2026-03-30 16:44 | 2026-03-27 | LH | LABCORP HOLDINGS INC. | Meltzer Jonathan C | Officer; EVP, Operations | Services-Medical Laboratories | SALE | $267.05 | 839 | $224,055 | 3,620 | -18.8% |
| 2026-03-30 13:37 | 2026-03-27 | STIM | Neuronetics, Inc. | Chernett Jorey | 10% owner | Surgical & Medical Instruments & Apparatus | BUY | $1.35 | 500,000 | $675,000 | 9,393,276 | +5.6% |
| 2026-03-30 13:38 | 2026-03-27 | TOI | Oncology Institute, Inc. | Chernett Jorey | 10% owner | Services-Offices & Clinics of Doctors of Medicine | BUY | $2.96 | 27,429 | $81,190 | 10,479,358 | +0.3% |
| 2026-03-28 00:32 | 2026-03-25 | GKOS | GLAUKOS Corp | Thurman Alex R. | Officer; SVP & CHIEF FINANCIAL OFFICER | Surgical & Medical Instruments & Apparatus | SALE | $106.46 | 2,511 | $267,321 | 41,967 | -5.6% |
| 2026-03-28 00:09 | 2026-03-25 | ESTA | ESTABLISHMENT LABS HOLDINGS INC. | Chacon Quiros Juan Jose | Director | Orthopedic, Prosthetic & Surgical Appliances & Supplies | SALE | $60.08 | 3,575 | $214,768 | 1,220,004 | -0.3% |
| 2026-03-27 17:49 | 2026-03-26 | BDX | BECTON DICKINSON & CO | Feld Michael | Officer; EVP, Chief Revenue Officer | Surgical & Medical Instruments & Apparatus | SALE | $156.83 | 75 | $11,762 | 21,233 | -0.4% |
| 2026-03-27 13:34 | 2026-03-26 | TOI | Oncology Institute, Inc. | Chernett Jorey | 10% owner | Services-Offices & Clinics of Doctors of Medicine | BUY | $3.15 | 50,000 | $157,500 | 10,451,929 | +0.5% |
| 2026-03-27 13:33 | 2026-03-25 | STIM | Neuronetics, Inc. | Chernett Jorey | 10% owner | Surgical & Medical Instruments & Apparatus | BUY | $1.41 | 150,000 | $211,005 | 8,893,276 | +1.7% |
| 2026-03-26 20:35 | 2026-01-29 | NXTS | Nexentis Technologies Inc. | Lee Eun Young | 10% owner | Agricultural Chemicals | SALE | $1.36 | 127 | $172 | 479,524 | 0.0% |
| 2026-03-26 00:40 | 2026-03-24 | GKOS | GLAUKOS Corp | Thurman Alex R. | Officer; SVP & CHIEF FINANCIAL OFFICER | Surgical & Medical Instruments & Apparatus | SALE | $105.24 | 1,521 | $160,070 | 46,498 | -3.2% |
| 2026-03-25 21:14 | 2023-05-30 | IFF | INTERNATIONAL FLAVORS & FRAGRANCES INC | Costa Mark J | Director | Industrial Organic Chemicals | SALE | $71.77 | 30 | $2,153 | 463 | -6.1% |
| 2026-03-25 21:14 | 2023-03-24 | IFF | INTERNATIONAL FLAVORS & FRAGRANCES INC | Costa Mark J | Director | Industrial Organic Chemicals | BUY | $82.28 | 25 | $2,057 | 478 | +5.5% |
| 2026-03-25 21:14 | 2026-03-23 | HYPR | Hyperfine, Inc. | HALE BRETT | Officer; CFO and CAO | Electromedical & Electrotherapeutic Apparatus | SALE | $1.21 | 24,188 | $29,267 | 275,812 | -8.1% |
| 2026-03-25 21:15 | 2026-03-23 | HYPR | Hyperfine, Inc. | TEISSEYRE THOMAS | Officer; Chief Operating Officer | Electromedical & Electrotherapeutic Apparatus | SALE | $1.21 | 24,188 | $29,267 | 354,648 | -6.4% |
| 2026-03-25 21:15 | 2026-03-23 | TXG | 10x Genomics, Inc. | Saxonov Serge | Director, Officer; Chief Executive Officer | Laboratory Analytical Instruments | SALE | $19.26 | 15,000 | $288,909 | 1,172,273 | -1.3% |
| 2026-03-25 20:05 | 2026-03-23 | IRMD | IRADIMED CORP | Susi Roger E. | Director, Officer, 10% owner; CEO, PRESIDENT, CHAIRMAN | Surgical & Medical Instruments & Apparatus | SALE | $100.35 | 7,500 | $752,609 | 2,232,500 | -0.3% |
| 2026-03-25 17:43 | 2026-03-23 | AIRS | Airsculpt Technologies, Inc. | Chernett Jorey | 10% owner | Services-Offices & Clinics of Doctors of Medicine | BUY | $2.91 | 50,000 | $145,500 | 6,843,761 | +0.7% |
| 2026-03-25 13:33 | 2026-03-24 | TOI | Oncology Institute, Inc. | Chernett Jorey | 10% owner | Services-Offices & Clinics of Doctors of Medicine | BUY | $3.11 | 125,000 | $388,750 | 10,401,929 | +1.2% |
| 2026-03-24 22:49 | 2026-03-20 | QSI | Quantum-Si Inc | Hawkins Jeffrey Alan | Director, Officer; President & CEO | Measuring & Controlling Devices, NEC | SALE | $0.84 | 23,777 | $19,906 | 3,859,847 | -0.6% |
| 2026-03-24 22:55 | 2026-03-20 | QSI | Quantum-Si Inc | Vieceli John S. | Officer; Chief Product Officer | Measuring & Controlling Devices, NEC | SALE | $0.84 | 21,997 | $18,416 | 1,170,657 | -1.8% |
| 2026-03-24 22:55 | 2026-03-20 | QSI | Quantum-Si Inc | LaPointe Christian | Officer; GC & Corp. Secretary | Measuring & Controlling Devices, NEC | SALE | $0.84 | 11,959 | $10,012 | 1,198,017 | -1.0% |
| 2026-03-24 23:02 | 2026-03-20 | QSI | Quantum-Si Inc | Keyes Jeffry R. | Officer; Chief Financial Officer | Measuring & Controlling Devices, NEC | SALE | $0.84 | 8,655 | $7,246 | 1,807,345 | -0.5% |
| 2026-03-24 22:09 | 2026-03-20 | HIMS | Hims & Hers Health, Inc. | Okupe Oluyemi | Officer; Chief Financial Officer | Services-Offices & Clinics of Doctors of Medicine | OPT+S | $23.77 | 9,217 | $219,067 | 318,789 | -2.8% |
| 2026-03-24 21:50 | 2026-03-19 | STIM | Neuronetics, Inc. | Sullivan Keith J | Other | Surgical & Medical Instruments & Apparatus | SALE | $1.34 | 46,289 | $62,027 | 1,590,924 | -2.8% |
| 2026-03-24 21:52 | 2026-03-19 | STIM | Neuronetics, Inc. | Pfanstiel Steven | Officer; EVP, CFO and Treasurer | Surgical & Medical Instruments & Apparatus | SALE | $1.34 | 16,431 | $22,018 | 828,781 | -1.9% |
| 2026-03-24 21:48 | 2026-03-19 | STIM | Neuronetics, Inc. | MACAN WILLIAM ANDREW | Officer; EVP, CLO and CS | Surgical & Medical Instruments & Apparatus | SALE | $1.34 | 16,005 | $21,447 | 897,270 | -1.8% |
| 2026-03-24 20:30 | 2026-03-23 | ARQ | Arq, Inc. | Campbell-Breeden Richard | Director | Miscellaneous Chemical Products | BUY | $2.21 | 150,000 | $331,665 | 404,786 | +58.9% |
Strategic Signal Filtering
Our screener allows you to cut through the noise of routine stock grants and small trades. By focusing on high-value transactions from C-suite executives (CEO/CFO), you can identify where the "Smart Money" is being deployed with maximum conviction.
Investing Without Illusions
Insider data is not a magic wand, but it is the most honest indicator available. While insiders sell for many reasons (taxes, personal needs), they generally buy for only one: they believe the stock price is undervalued. We provide the tools to track these skin-in-the-game moves.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.