Form 4 for IOSP INNOSPEC INC.
Accepted 2026-02-24 00:00:00 ET · period of report 2026-02-20 · accession 0001193125-26-067750 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-02-24 | 2026-02-23 | IOSP | Blackmore Milton C | Dir | A - Grant | $0.00 | +1,539 | 11.1K | +16% | $0 |
| D | 2026-02-24 | 2026-02-20 | IOSP | Blackmore Milton C | Dir | M - OptEx | $44.18 | +1,030 | 10.6K | +11% | +$45.5K |
| D | 2026-02-24 | 2026-02-20 | IOSP | Blackmore Milton C | Dir | S - Sale+OE | $81.84 | -1,030 | 9,585 | -10% | -$84.3K |
| D | 2026-02-24 | 2026-02-20 | IOSP | Blackmore Milton C | Dir | M - OptEx | $0.00 | -1,030 | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-02-23 | A | A | 1,539 | $0.00 | 11,124 | D | — | — | (F1) Represents Restricted Stock Units ("RSUs") vesting in full on February 23, 2029, granted by Issuer in connection with Reporting Person's service as a non-employee director. |
| 2 | Common | Common Stock | 2026-02-20 | M | A | 1,030 | $44.18 | 10,615 | D | — | — | |
| 3 | Common | Common Stock | 2026-02-20 | S | D | 1,030 | $81.84 | 9,585 | D | — | — | |
| 4 | Derivative | Stock Option | 2026-02-20 | M | D | 1,030 | $0.00 | 0 | D | $44.18 · 2019-02-22 to 2026-02-22 | 1,030 Common Stock |