Updated Jul 16, 2026
Siffermann William A is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $5K. Historical track record: 1/5 stars across 5 tracked purchases.
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 | ★☆☆☆☆ (1/5) |
|---|---|
| Total purchases tracked | 5 |
| Purchases with forward-return data | 5 |
| 30-day win rate | 0% |
| 90-day win rate | 2000% |
| Avg 5-day return | -163.83% |
| Avg 30-day return | -447.96% |
| Avg 90-day return | -63.50% |
| Best 30-day return | -266.41% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-06 | JRS | NUVEEN REAL ESTATE INCOME FUND | P — Open-market purchase | 100 | $8.11 | $811 |
| 2026-03-06 | NMZ | NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND | P — Open-market purchase | 100 | $10.48 | $1K |
| 2026-03-06 | NAD | Nuveen Quality Municipal Income Fund | P — Open-market purchase | 100 | $12.06 | $1K |
| 2026-03-06 | NBB | Nuveen Taxable Municipal Income Fund | P — Open-market purchase | 75 | $16.20 | $1K |
| 2026-03-06 | NMAI | Nuveen Multi-Asset Income Fund | P — Open-market purchase | 75 | $13.44 | $1K |
Siffermann William A is a corporate insider — currently tracked as Vice President. InsiderAlpha tracks every SEC Form 4 filing in real time.
Recorded transactions: 5 open-market purchases ($5K) and 0 open-market sales () across all tracked filings.
Across 5 tracked purchases, Siffermann William A averaged -448.0% avg 30-day return with a 0% 30-day win rate. InsiderAlpha rates the track record at 1/5 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.
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