Sarah R. Opperman, Director at ISABELLA BANK CORP (ISBA), bought 361 shares at $27.70 ($10K) on 2016-10-03, disclosed to the SEC on 2016-10-06.
Open-market purchase of $10k ISBA by Director. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.