Summary
Updated Aug 31, 2026
David Crombie files SEC Form 4 reports at Nine Energy Service, Inc. (NINE). 3 SEC Form 4 filings on record going back to 2024, most recently on 20 May 2026. Most recent open-market trade: sold $46K of NINE on 7 November 2024. Lifetime open-market sales: $46K.
Recent Transactions
3Every recent SEC Form 4 transaction David Crombie has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David Crombie go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who have reported open-market trades at the same companies as David Crombie. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- William Monroe - $1.84M of NINE open-market activity on record
- Ann G. Fox - $391K of NINE open-market activity on record
- Guy Sirkes - $92K of NINE open-market activity on record
- Theodore R. Moore - $26K of NINE open-market activity on record
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is David Crombie?
David Crombie is a corporate insider of Nine Energy Service, Inc. (NINE). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did David Crombie last file a Form 4?
The most recent primary Form 4 on record is dated 20 May 2026, one of 3 filings going back to 2024.
Has David Crombie been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($46K) across all tracked filings.
Where can I see all of David Crombie's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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