*Notional-weighted price return on lawmakers' disclosed buys of IOSP, marked to the latest close — per-share (share counts aren't disclosed).
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2016-03-29 | Hon. James B. Renacci | BUY | $1K–$15K | $44.31 | $82.63 2026-06-26 | +86.5% |
| 2016-03-28 | Hon. James B. Renacci | BUY | $1K–$15K | $43.67 | $82.63 2026-06-26 | +89.2% |
Return: buys marked to the latest close (open); sells tagged rt are realized round-trips vs a prior disclosed buy; exit = timing (stock move after the sale, seller's perspective).