Company · Ownership research

INNOSPEC INC. IOSP

CIK 0001054905

Form 4 transactions dated Nov 1, 2023 to Nov 7, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 50 rows; the complete set is available through the API.

Insider filings on file run through Oct 5, 2026.

Insider purchases & sales

Purchased: $116.02K
Sold: $9.52M

Nov 1, 2023 – Oct 5, 2026
Available records · partial months are marked ·

202410 of 20 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Nov 22, 2024	Poccia Claudia Director	Sale	$35.96K 300 shares sold	7.18% sold Direct holding	▾
Nov 18, 2024	GRIFFIN HARDY LOUIS III SVP, HUMAN RESOURCES	Sale	$18.92K 161 shares sold	3.44% sold Direct holding	▾
Nov 18, 2024	BARNES CORBIN SVP, Corporate Dev and IR	Sale	$36.08K 307 shares sold	3.67% sold Direct holding	▾
Nov 13, 2024	Blackmore Milton C Director	Sale	$127.22K 1,035 shares sold	10.29% sold Direct holding	▾
Aug 26, 2024	Cleminson Ian VP & CFO	Sale	$389.90K 3,398 shares sold	20.73% sold Direct holding	▾
Aug 23, 2024	Cleminson Ian VP & CFO	Sale	$749.99K 6,602 shares sold	28.71% sold Direct holding	▾
Aug 13, 2024	PARRETTE LESLIE J Director	Purchase	$15.14K 143 shares bought	3.11% added Direct holding	▾
May 20, 2024	GRIFFIN HARDY LOUIS III SVP, HUMAN RESOURCES	Sale	$68.13K 525 shares sold	10.40% sold Direct holding	▾
May 16, 2024	PARRETTE LESLIE J Director	Purchase	$24.87K 189 shares bought	4.29% added Direct holding	▾
Mar 1, 2024	Jones David B. SVP, GC & CCO	Sale	$314.48K 2,500 shares sold	20.55% sold Direct holding	▾

Showing 20 / 20 record groups in 2024. The complete set is available through the API.

INNOSPEC INC. · IOSP

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{"action":"list","ticker":"IOSP","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.