Advent Life Sciences LLP, Insider at Versartis, Inc. (VSAR), bought 55,000 shares at $17.25 ($949K) on 2015-01-22, disclosed to the SEC on 2015-01-26.
Open-market purchase of $949k VSAR by Insider. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history).
Nothing distinguishes this filing.