Updated Jul 16, 2026
Huml David W. is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $258K. Historical track record: 4/5 stars across 3 tracked purchases.
David W. Huml is associated with Tennant Company, a manufacturer of cleaning equipment. His specific role and contributions to the company are not widely documented in public sources, indicating he may not be a widely recognized figure outside of corporate contexts.
| Role | Insider |
|---|---|
| Notability | 20/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★★☆ (4/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 10000% |
| 90-day win rate | 10000% |
| Avg 5-day return | -54.55% |
| Avg 30-day return | +320.87% |
| Avg 90-day return | +3940.32% |
| Best 30-day return | +320.87% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-10 | TNC | TENNANT CO | G — Bona-fide gift | 26.8K | $0.00 | |
| 2026-03-10 | TNC | TENNANT CO | G — Bona-fide gift | 26.8K | $0.00 | |
| 2026-03-03 | TNC | TENNANT CO | F — Tax withholding / forfeiture | 4.3K | $61.03 | $260K |
| 2026-03-02 | TNC | TENNANT CO | A — Grant or award | 28.7K | $0.00 | |
| 2026-03-02 | TNC | TENNANT CO | P — Open-market purchase | 175 | $65.48 | $11K |
| 2026-03-02 | TNC | TENNANT CO | P — Open-market purchase | 1.2K | $65.01 | $80K |
| 2026-03-02 | TNC | TENNANT CO | P — Open-market purchase | 2.6K | $64.02 | $166K |
| 2026-03-02 | TNC | TENNANT CO | F — Tax withholding / forfeiture | 13.8K | $62.73 | $866K |
| 2026-03-02 | TNC | TENNANT CO | A — Grant or award | 35.5K | $0.00 | |
| 2026-03-02 | TNC | TENNANT CO | G — Bona-fide gift | 17.6K | $0.00 | |
| 2026-03-02 | TNC | TENNANT CO | G — Bona-fide gift | 17.6K | $0.00 |
David W. Huml is associated with Tennant Company, a manufacturer of cleaning equipment. His specific role and contributions to the company are not widely documented in public sources, indicating he may not be a widely recognized figure outside of corporate contexts.…
Recorded transactions: 3 open-market purchases ($258K) and 0 open-market sales () across all tracked filings.
Across 3 tracked purchases, Huml David W. averaged +320.9% avg 30-day return with a 10000% 30-day win rate. InsiderAlpha rates the track record at 4/5 stars.
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.
Open the live Huml David W. profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.