Yubao Li, Director at Yunhong CTI Ltd. (CTIB), bought 140,000 shares at $1.00 ($140K) on 2020-02-28, disclosed to the SEC on 2020-03-18.
Open-market purchase of $140k CTIB by Director. 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.
Something here stands out, but not much.
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