PAA GP LLC, 10% Owner at PAA NATURAL GAS STORAGE LP (PNG), bought 3,828 shares at $23.27 ($89K) on 2011-05-05, disclosed to the SEC on 2011-05-19.
Open-market purchase of $89k PNG by 10% Owner. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Negative factors outweigh the positive ones.