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 Gastar Exploration 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.
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
12 buys5 sellsbar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Selser John Michael SR | Sell | $154K | SEC | ||
| Selser John Michael SR |
| Sell |
| $110.7K |
| SEC |
| Selser John Michael SR | Sell | $167.6K | SEC |
| Porter J Russell | Sell | $1.9K | SEC |
| Porter J Russell | Sell | $243K | SEC |
| Gerlich Michael A | Buy | $4.9K | conv 29 | SEC |
| Gerlich Michael A | Buy | $36.7K | conv 74Unusual size | SEC |
| Selser John Michael SR | Buy | $25.2K | conv 26 | SEC |
| Gerlich Michael A | Buy | $10.2K | conv 44Cluster | SEC |
| Gerlich Michael A | Buy | $10.2K | conv 56ClusterFirst in 12mo | SEC |
| Selser John Michael SR | Buy | $56.8K | conv 45 | SEC |
| McCown Michael | Buy | $6.4K | conv 70First in 12mo | SEC |
| McCown Michael | Exercise | $516.7K | SEC |
| Porter J Russell | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Cassels John Hamilton | Award | $100K | SEC |
| Porter J Russell | ExerciseD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Gerlich Michael A | Other | $237.5K | Unusual size | SEC |
| Coley Randolph C | Other | $43.5K | Unusual size | SEC |
| Penner Robert David | Award | $100K | SEC |
| Porter J Russell | Exercise | $1.5M | SEC |
| Porter J Russell | Other | $546.5K | Unusual size | SEC |
| McCown Michael | Other | $177.9K | SEC |
| Porter J Russell | Other | $529.2K | Unusual size | SEC |
| Gerlich Michael A | Award | $305K | SEC |
| Cassels John Hamilton | Other | $34.8K | Unusual size | SEC |