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 SEMITOOL INC 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
16 buys97 sellsbar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| DODKIN TIMOTHY C | Sell | $1.8K | SEC | ||
| Siblerud Paul M |
| Sell |
| $6.8K |
| Unusual size |
| SEC |
| SCHUSTER RICHARD P | Sell | $6.8K | SEC |
| Wright James L | Sell | $7.2K | Unusual size | SEC |
| Murphy Lawrence E | Sell | $14.3K | SEC |
| DODKIN TIMOTHY C | Sell | $169.6K | Unusual size | SEC |
| VIANO LARRY A | Sell | $7.2K | SEC |
| Oetzlinger Hebert | Award | $24.6K | SEC |
| Hegger Richard C | Sell | $7.2K | SEC |
| DODKIN TIMOTHY C | Sell | $142.7K | SEC |
| SCHUSTER RICHARD P | Sell | $2.6K | SEC |
| SCHUSTER RICHARD P | Sell | $8.2K | SEC |
| SCHUSTER RICHARD P | Sell | $3.8K | SEC |
| Stahlberg Steven C | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| BAUMANN DONALD P | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| EIGEMAN DANIEL J | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| GRENIER CHARLES P | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| BATEMAN HOWARD E | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| DODKIN TIMOTHY C | Sell | $14.6 | SEC |
| DODKIN TIMOTHY C | Sell | $311.4 | SEC |
| Siblerud Paul M | Sell | $1.2K | SEC |
| DODKIN TIMOTHY C | Sell | $311.4 | SEC |
| Siblerud Paul M | Sell | $51.3 | SEC |
| Murphy Lawrence E | Sell | $3.1K | SEC |
| Wright James L | Sell | $1.5K | SEC |