1 members of Congress disclosed 1 transactions in IOSP between Jun 2, 2017 and Jun 2, 2017.
Price, with congressional trades marked
IOSP$98.72latest
Aug 21, 2025 – Sep 25, 2026 · closing price, dividend and split adjustedbuy·sell·% is what the stock has done since that purchase — not the member's return, and not benchmark-adjusted