Summary
Updated Aug 31, 2026
William Monroe files SEC Form 4 reports at Nine Energy Service, Inc. (NINE). 2 SEC Form 4 filings on record going back to 2024, most recently on 9 April 2025. Most recent open-market trade: sold $682K of NINE on 9 April 2025. Lifetime open-market purchases: $1.16M. Lifetime open-market sales: $682K. Historical track record: 1/5 stars across 3 tracked purchases.
Recent Transactions
4Every recent SEC Form 4 transaction William Monroe has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★☆☆☆☆ (1/5) |
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 0% |
| 90-day win rate | 67% |
| Avg 5-day return | +22.05% |
| Avg 30-day return | -19.87% |
| Avg 90-day return | -0.99% |
| Best 30-day return | -15.25% |
Trading Pattern
InsiderAlpha's records for William Monroe go back to 2024: 2 primary Form 4 filings, an average of 0.7 per year. The typical open-market purchase is $387K (3 buys totaling $1.16M). The largest single buy on record is $518K of NINE in 2024. Sales side: 1 recorded sale totaling $682K, so the filing history runs buy-heavy by dollar value. 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 William Monroe. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Ann G. Fox - $391K of NINE open-market activity on record
- Guy Sirkes - $92K of NINE open-market activity on record
- David Crombie - $46K 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 William Monroe?
William Monroe is a corporate insider of Nine Energy Service, Inc. (NINE). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did William Monroe last file a Form 4?
The most recent primary Form 4 on record is dated 9 April 2025, one of 2 filings going back to 2024.
Has William Monroe been buying or selling stock?
Recorded transactions: 3 open-market purchases ($1.16M) and 1 open-market sale ($682K) across all tracked filings.
How accurate is William Monroe's historical track record?
Across 3 tracked purchases, William Monroe averaged -19.9% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
Where can I see all of William Monroe'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.
Learn More
Follow William Monroe and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial