William A. Siffermann, Vice President at Nuveen Build America Bond Opportunity Fund (NBD), bought 200 shares at $22.31 ($4K) on 2018-04-13, disclosed to the SEC on 2018-04-16.
Open-market purchase of $4k NBD by Vice President. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade B.
Several strong factors at once. The rarest rating we give.
| Filing → |
| NBB | BUY | 2026-03-06 | $1K | — | Filing → |
| JRS | BUY | 2026-03-06 | $811 | — | Filing → |
| NMZ | BUY | 2026-03-06 | $1K | — | Filing → |