Summary
Updated Aug 31, 2026
Charles S. Miller is Senior EVP-Sales of FASTENAL CO (FAST). 3 SEC Form 4 filings on record going back to 2024, most recently on 10 February 2026. Most recent open-market trade: bought $2K of FAST on 10 February 2026. Lifetime open-market purchases: $5K. Lifetime open-market sales: $1.97M. Historical track record: 2/5 stars across 4 tracked purchases.
Recent Transactions
8Every recent SEC Form 4 transaction Charles S. Miller 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 | ★★☆☆☆ (2/5) |
| Total purchases tracked | 4 |
| Purchases with forward-return data | 4 |
| 30-day win rate | 50% |
| 90-day win rate | 100% |
| Avg 5-day return | +5.71% |
| Avg 30-day return | +3.91% |
| Avg 90-day return | +14.29% |
| Best 30-day return | +8.79% |
Trading Pattern
InsiderAlpha's records for Charles S. Miller go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. The typical open-market purchase is $1K (4 buys totaling $5K). The largest single buy on record is $2K of FAST in 2026. Sales side: 2 recorded sales totaling $1.97M, so the filing history runs sell-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 reported open-market trades in the last 12 months at the companies Charles S. Miller files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Rita J. Heise - $1.75M of FAST open-market activity in the last 12 months
- Reyne K. Wisecup - $1.75M of FAST open-market activity in the last 12 months
- John Lewis Soderberg - $1.66M of FAST open-market activity in the last 12 months
- Scott Satterlee - $705K of FAST open-market activity in the last 12 months
- Donnalee Kathleen Papenfuss - $476K of FAST open-market activity in the last 12 months
- Michael J. Ancius - $303K of FAST open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Charles S. Miller?
Charles S. Miller is a corporate insider, tracked as Senior EVP-Sales of FASTENAL CO (FAST). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Charles S. Miller last file a Form 4?
The most recent primary Form 4 on record is dated 10 February 2026, one of 3 filings going back to 2024.
Has Charles S. Miller been buying or selling stock?
Recorded transactions: 4 open-market purchases ($5K) and 2 open-market sales ($1.97M) across all tracked filings.
How accurate is Charles S. Miller's historical track record?
Across 4 tracked purchases, Charles S. Miller averaged +3.9% avg 30-day return with a 50% 30-day win rate. InsiderAlpha rates the track record at 2/5 stars.
Where can I see all of Charles S. Miller'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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