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 National Interstate CORP 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 buys215 sellsbar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Schwegman Donald W | Other | $67.5K | SEC | ||
| Other |
| $6.3M |
| Unusual size |
| SEC |
| Monda Gary N | Other | $252.8K | SEC |
| Spachman Alan R | Other | $62M | Unusual size | SEC |
| ROSENTHAL NORMAN L | Other | $45.6K | SEC |
| Michelson David W | Other | $384K | Unusual size | SEC |
| Monda Gary N | Other | $146.6K | SEC |
| Cholnoky I John | Other | $28.4K | SEC |
| Consolino Joseph E | Other | $303.3K | SEC |
| Denzer Patrick J | Other | $166.4K | SEC |
| Brichler Ronald J | Other | $32K | SEC |
| MCGRAW JULIE A | Other | $30.9K | SEC |
| Gonzales Arthur J | OtherD (derivative) | $382K | SEC |
| Phillips Terry E | Other | $146.6K | SEC |
| Gonzales Arthur J | Other | $170.6K | SEC |
| Mercurio Anthony J | Other | $267.8K | SEC |
| Larson Donald D | Other | $32K | SEC |
| MCGRAW JULIE A | Other | $146.6K | SEC |
| Monda Gary N | Other | $1.3M | SEC |
| Mercurio Anthony J | Other | $837.5K | SEC |
| Gruber Gary J | Other | $32K | SEC |
| Phillips Terry E | Other | $1.4M | SEC |
| Michelson David W | Gift | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Michelson David W | Gift | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Michelson David W | Gift | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |