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 SOUTHWEST ROYALTIES INSTITUTIONAL INCOME FUND VIII B L P 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
36 buysbar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details |
|---|---|---|---|---|
| SOUTHWEST ROYALTIES INC | Buy | $6.9K | conv 11 | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $6.9K | conv 11 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $63.8K | conv 44Unusual size | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $63.8K | conv 44Unusual size | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $3.5K | conv 11 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $3.5K | conv 11 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $20.7K | conv 12 | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $20.7K | conv 12 | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $24.6K | conv 25 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $24.6K | conv 25 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $20K | conv 11 | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $20K | conv 11 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $193.8K | conv 45Unusual size | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $193.8K | conv 45Unusual size | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $45.7K | conv 22 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $45.7K | conv 21 | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $4.3K | conv 11 | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $4.3K | conv 11 | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $128.4K | conv 41Unusual size | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $128.4K | conv 45Unusual size | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $238.2K | conv 46Unusual size | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $238.2K | conv 46Unusual size | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $245.1K | conv 50Unusual size | SEC |
| SOUTHWEST ROYALTIES INC | Buy | $245.1K | conv 51Unusual size | SEC |
| CLAYTON WILLIAMS ENERGY INC /DE | Buy | $11.4K | conv 8 | SEC |