Figures computed from official regulatory filings — .
Ask the machine
Search and compare insider transactions, companies and their statistics in plain language. Your question becomes a query over available data, not a conversation or investment advice.
Data for PLATINUM UNDERWRITERS HOLDINGS LTD only. No web search. Global per-insider statistics are excluded.
An executed search uses one credit, even with no results. Errors and unsupported questions use no credits.
Business description unavailable in our sources.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
25 buys170 sellsbar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Hass A John | Other | n/a (No price was disclosed in the filing) | SEC | ||
| Mitchell H Elizabeth |
| Other |
| n/a (No price was disclosed in the filing) |
| SEC |
| Mitchell H Elizabeth | Other | n/a (No price was disclosed in the filing) | SEC |
| Mitchell H Elizabeth | OtherD (derivative) | $546.7K | Unusual size | SEC |
| Steffen Christopher J | OtherD (derivative) | $53K | SEC |
| PRICE MICHAEL D | OtherD (derivative) | $1.8M | SEC |
| CARMICHAEL DAN R | OtherD (derivative) | $53K | SEC |
| Mitchell H Elizabeth | OtherD (derivative) | $767.4K | Unusual size | SEC |
| LOMBARDOZZI MICHAEL E | OtherD (derivative) | $546.7K | SEC |
| Megna Edmund R Jr | Other | $811.7K | SEC |
| Kurtzman Kenneth A | OtherD (derivative) | n/a (No price was disclosed in the filing) | SEC |
| Porter Robert S | Other | $12.5M | SEC |
| SCHMIDT NEAL J | OtherD (derivative) | $449K | Unusual size | SEC |
| Mitchell H Elizabeth | Other | n/a (No price was disclosed in the filing) | SEC |
| Kurtzman Kenneth A | OtherD (derivative) | n/a (No price was disclosed in the filing) | SEC |
| SCHMIDT NEAL J | Other | $2.4M | Unusual size | SEC |
| Lancaster Antony P.D. | Other | n/a (No price was disclosed in the filing) | SEC |
| Decleir Allan Carl | Other | n/a (No price was disclosed in the filing) | SEC |
| PRICE MICHAEL D | OtherD (derivative) | $1M | SEC |
| LOMBARDOZZI MICHAEL E | Other | $4.6M | Unusual size | SEC |
| Porter Robert S | OtherD (derivative) | $767.4K | SEC |
| Ransom Linda E | OtherD (derivative) | $53K | SEC |
| Steffen Christopher J | Other | $660.1K | SEC |
| Hass A John | OtherD (derivative) | $53K | SEC |
| Kurtzman Kenneth A | Other | n/a (No price was disclosed in the filing) | SEC |