William A Siffermann
CIK 1714150 · Vice President · last filed 2026-03-06
William A Siffermann is a Vice President who has filed 17 SEC Form 4 insider transactions across 7 companies since 2018. The most recent filing shows the insider bought $811 of JRS on Mar 6, 2026. Across all open-market trades the lifetime net is +$24.0K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $40.3K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$40.3K
7
17
$24.0K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| JRS | Vice President | 485 | $8.52 | $4.1K | $2.7K | 3 | 2026-03-06 |
| NBB | Vice President | 615 | $15.78 | $9.7K | $1.2K | 2 | 2026-03-06 |
| NAD | Vice President | 1,041 | $11.95 | $12.4K | $8.4K | 4 | 2026-03-06 |
| NMAI | Vice President | 330 | $13.88 | $4.6K | $1.0K | 1 | 2026-03-06 |
| NMZ | Vice President | 913 | $10.37 | $9.5K | $6.1K | 3 | 2026-03-06 |
| JQC | Vice President | — | $4.83 | — | $0 | 1 | 2025-05-06 |
| Nuveen Build America Bond Opportunity Fund (NBD) Delisted | Vice President | 302 | — | — | $4.5K | 1 | 2018-04-16 |
Recent Filings
17 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-06 | JRS | Buy (P) | +100 | $811 | EDGAR |
| 2026-03-06 | NBB | Buy (P) | +75 | $1.2K | EDGAR |
| 2026-03-06 | NAD | Buy (P) | +100 | $1.2K | EDGAR |
| 2026-03-06 | NMAI | Buy (P) | +75 | $1.0K | EDGAR |
| 2026-03-06 | NMZ | Buy (P) | +100 | $1.0K | EDGAR |
| 2025-05-06 | JQC | Exer (X) | — | $0 | EDGAR |
| 2025-03-24 | NAD | Buy (P) | +300 | $3.5K | EDGAR |
| 2025-03-24 | NMZ | Buy (P) | +300 | $3.3K | EDGAR |
| 2023-04-05 | NAD | Buy (P) | +100 | $1.1K | EDGAR |
| 2018-11-20 | NBB | Other (J) | +324 | $0 | EDGAR |