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Innospec (IOSP) Stock Analysis & Price (Updated Oct 16, 2026, 4:00 PM ET)

Updated Oct 16, 2026, 4:00 PM ET

What changed since yesterday

IOSP ends flat (+0.2%) to $96.81. Closed at $96.81, +0.22% vs the prior close of $96.60. Day range $96.06–$97.36, opened at $96.75.

Last close$96.81+0.22%
Day range96.06–97.36
Open96.75
Volume173.64K
52-week range65.51–100.48
Avg volume (20d)221.79K

IOSP daily analysis β€” what happened

A plain-English, data-only note written after every US trading day. Newest first; older days stay archived below.

Oct 16, 2026 β€” IOSP ends flat (+0.2%) to $96.81
Oct 15, 2026 β€” IOSP dips 0.5% to $96.60
Oct 14, 2026 β€” IOSP dips 0.3% to $97.10
Oct 13, 2026 β€” IOSP rises 1.9% to $97.43
Oct 12, 2026 β€” IOSP ends flat (+0.0%) to $95.66
Oct 9, 2026 β€” IOSP dips 2.1% to $95.65
Oct 8, 2026 β€” IOSP ends flat (+0.3%) to $97.69
Oct 7, 2026 β€” IOSP dips 1.1% to $97.42
Oct 6, 2026 β€” IOSP rises 0.9% to $98.55, 3 up days in a row
Oct 5, 2026 β€” IOSP ends flat (+0.2%) to $97.65
Oct 2, 2026 β€” IOSP rises 2.4% to $97.41

IOSP latest news & SEC filings

Every SEC filing by or about IOSP in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.

Oct 7, 2026 Β· Form SCHEDULE 13G/A β€” Update to a passive 5%+ stake (13G)

Update to a passive 5%+ stake (13G)

Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.

Source: SEC EDGAR filing 0001890906-26-000074

Oct 7, 2026 Β· Form SCHEDULE 13G β€” Passive stake (13G)

Passive stake (13G) β€” an investor reported owning more than 5%

Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.

Source: SEC EDGAR filing 0001890906-26-000068

Oct 5, 2026 Β· Form 4 β€” Insider trade

Insider trade report (Form 4) β€” a director, officer or 10%+ owner changed their holdings

Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).

Source: SEC EDGAR filing 0001193125-26-414699

Oct 5, 2026 Β· Form 4 β€” Insider trade

Insider trade report (Form 4) β€” a director, officer or 10%+ owner changed their holdings

Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).

Source: SEC EDGAR filing 0001193125-26-414694

Oct 5, 2026 Β· Form 4 β€” Insider trade

Insider trade report (Form 4) β€” a director, officer or 10%+ owner changed their holdings

Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).

Source: SEC EDGAR filing 0001193125-26-414685

Oct 5, 2026 Β· Form 4 β€” Insider trade

Insider trade report (Form 4) β€” a director, officer or 10%+ owner changed their holdings

Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).

Source: SEC EDGAR filing 0001193125-26-414672

Oct 5, 2026 Β· Form 4 β€” Insider trade

Insider trade report (Form 4) β€” a director, officer or 10%+ owner changed their holdings

Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).

Source: SEC EDGAR filing 0001193125-26-414650

Oct 5, 2026 Β· Form 4 β€” Insider trade

Insider trade report (Form 4) β€” a director, officer or 10%+ owner changed their holdings

Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).

Source: SEC EDGAR filing 0001193125-26-414645

Aug 5, 2026 Β· Form 10-Q β€” Quarterly report

Quarterly report (unaudited financial statements for the quarter)

Quarter ended Jun 30, 2026:

Source: SEC EDGAR filing 0001193125-26-334178

Aug 5, 2026 Β· Form 8-K β€” Major event / current report

Current report β€” a filing companies must make within 4 business days of a major event

This is a results-day filing: the earnings press release is attached as an exhibit.

Source: SEC EDGAR filing 0001193125-26-333724

Jul 31, 2026 Β· Form SCHEDULE 13G/A β€” Update to a passive 5%+ stake (13G)

Update to a passive 5%+ stake (13G)

Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.

Source: SEC EDGAR filing 0001890906-26-000051

Jul 14, 2026 Β· Form SCHEDULE 13G β€” Passive stake (13G)

Passive stake (13G) β€” an investor reported owning more than 5%

Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.

Source: SEC EDGAR filing 0000354204-26-000796

Things to know before you trade IOSP

IOSP market data (last 20 sessions)

DateOpenHighLowCloseVolume
Oct 16, 202696.7597.3696.0696.81173.64K
Oct 15, 202697.5698.6796.1296.60240.90K
Oct 14, 202696.5097.6696.5097.10150.90K
Oct 13, 202696.3097.8995.9097.43131.60K
Oct 12, 202695.7096.5095.0095.66172.40K
Oct 9, 202697.4897.8995.5395.65182.40K
Oct 8, 202697.0598.4996.0697.69181.20K
Oct 7, 202697.3998.6496.8597.42304.60K
Oct 6, 202698.2799.2297.3298.55233.60K
Oct 5, 202697.6298.6096.7297.65193.40K
Oct 2, 202696.4398.6795.4497.41196.50K
Oct 1, 202694.8395.6993.6495.17330.60K
Sep 30, 202697.1697.2495.0995.32226.40K
Sep 29, 202697.5698.0996.1196.72185.20K
Sep 28, 202698.72100.4897.5897.88300.00K
Sep 25, 202697.1098.7796.8798.72258.30K
Sep 24, 202696.6197.5095.7696.87211.70K
Sep 23, 202696.0898.0095.7796.60262.10K
Sep 22, 202693.5296.4092.5996.08349.80K
Sep 21, 202692.8593.3492.3092.56150.50K

About Innospec

Innospec (IOSP) is listed on the Nasdaq and classified by the SEC under β€œChemicals & Allied Products”. Its business address is in ENGLEWOOD, CO. State of incorporation: DE. Fiscal year ends December 31. SEC CIK 1054905.

IOSP board of directors & executives

From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).

Directors

NameRoleLatest filing
Elizabeth K ArnoldDirectorFeb 25, 2026
Shelley J BauschDirectorJul 1, 2026
Milton C BlackmoreDirectorMar 6, 2026
David LandlessDirectorMar 6, 2026
Larry PadfieldDirectorMar 6, 2026
Leslie J ParretteDirectorFeb 24, 2026
Claudia PocciaDirectorMar 6, 2026

Executive officers

NameTitleLatest filing
Corbin BarnesSVP, Corporate Dev and IRMar 3, 2026
Graeme BlairHead of Group FinanceFeb 25, 2026
Ian CleminsonEVP & CFOMar 6, 2026
Hardy Louis Iii GriffinSVP, HUMAN RESOURCESMar 3, 2026
David B. JonesSVP, GC & CCOMar 3, 2026
Ian Malcolm McrobbieSenior VP R&TFeb 25, 2026
Patrick WilliamsPRESIDENT & CEOMar 3, 2026

Recent insider buys & sales

DateInsiderTypeSharesPrice
Mar 3, 2026David B. JonesSale1,028$75.64
Mar 3, 2026David B. JonesSale1,028$75.64
Mar 3, 2026David B. JonesSale1,028$75.64
Mar 3, 2026David B. JonesSale1,028$75.64
Feb 27, 2026Milton C BlackmoreSale307$76.79
Feb 27, 2026Milton C BlackmoreSale287$76.30
Feb 27, 2026Milton C BlackmoreSale307$76.79
Feb 27, 2026Milton C BlackmoreSale287$76.30
Feb 27, 2026Milton C BlackmoreSale307$76.79
Feb 27, 2026Milton C BlackmoreSale287$76.30
Feb 27, 2026Milton C BlackmoreSale307$76.79
Feb 27, 2026Milton C BlackmoreSale287$76.30
Feb 27, 2026Ian CleminsonSale1,231$76.79
Feb 27, 2026Ian CleminsonSale1,149$76.30
Feb 27, 2026Ian CleminsonSale1,231$76.79

IOSP financials (annual, from XBRL filings)

Fiscal year endRevenueNet incomeDiluted EPSOperating cash flow
Dec 31, 2025$1.78Bβ€”4.67$138.30M
Dec 31, 2024$1.85Bβ€”1.42$184.50M
Dec 31, 2023$1.95Bβ€”5.56$207.30M
Dec 31, 2022$1.96Bβ€”5.32$81.70M
Dec 31, 2021$1.48Bβ€”3.75$93.20M

Latest balance sheet: total assets $1.85B, total liabilities $495.20M, cash $250.20M (as of Jun 30, 2026).

IOSP earnings / results-day log

DateFilingClose that day
Aug 5, 20268-K Item 2.02 (results)$91.96
May 8, 20268-K Item 2.02 (results)$80.55
Feb 18, 20268-K Item 2.02 (results)$86.36
Nov 5, 20258-K Item 2.02 (results)$74.01
Aug 6, 20258-K Item 2.02 (results)$78.25
May 9, 20258-K Item 2.02 (results)$90.51
Feb 19, 20258-K Item 2.02 (results)$102.20
Nov 6, 20248-K Item 2.02 (results)$124.90
Aug 7, 20248-K Item 2.02 (results)β€”
May 10, 20248-K Item 2.02 (results)β€”
Feb 14, 20248-K Item 2.02 (results)β€”
Nov 8, 20238-K Item 2.02 (results)β€”

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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 16, 2026, 4:00 PM ET. Filings: SEC EDGAR. Updated after every US trading day.