Figures computed from official regulatory filings — .
Ownershipinsiders 0.68% · institutions 0% · short 0.8% of float
In USD · as of Oct 5, 2026
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LadRx Corporation, a biopharmaceutical company, engages in research and development of chemotherapeutic drugs for solid tumors in the United States. The company offers linker activated drug releases (LADR) technology, a platform consists of an organic backbone that is attached to a chemotoxic agent that targets and delivers the chemotoxic agent to the tumor environment and release within the tumor. Its lead candidates comprising LADRs 7, 8, 9, and 10 with novel derivatives of the auristatin and maytansinoid drug targeting tumors; and aldoxorubicin, which is in phase II clinical development for the treatment of pancreatic cancer. In addition, the company develops albumin companion diagnostic (ACDx) to identify patients with cancer that benefits from treatment with the four LADR lead candidates. The company was formerly known as CytRx Corporation and changed its name to LadRx Corporation in September 2022. The company was incorporated in 1985 and is headquartered in Los Angeles, California.
Market information source · Oct 5, 2026
Periods recorded in the consulted sources. These do not certify the legal dates of name changes.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
49 buys10 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details |
|---|---|---|---|---|
| Claiborne Cary J | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Snowdy Stephen | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Caldwell Joel K | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Simpson Jennifer K.track record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| CALOZ JOHN Y | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Snowdy Stephen | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Simpson Jennifer K.track record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Brien Earl W | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Brien Earl W | Exercise | $39K | SEC |
| KRIEGSMAN STEVEN A | Exercise | $780K | Unusual size | SEC |
| KRIEGSMAN STEVEN A | Other | $780K | Unusual size | SEC |
| IGNARRO LOUIS | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| IGNARRO LOUIS | Other | $182K | SEC |
| KRIEGSMAN STEVEN A | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Caldwell Joel K | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Caldwell Joel K | Other | $117K | SEC |
| Caldwell Joel K | Exercise | $117K | SEC |
| IGNARRO LOUIS | Exercise | $182K | SEC |
| Brien Earl W | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| CALOZ JOHN Y | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| IGNARRO LOUIS | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Caldwell Joel K | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KRIEGSMAN STEVEN A | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Kratz Felix | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| KRIEGSMAN STEVEN A | Award | $678.3K | Unusual size | SEC |