🕵️ Innospec Inc. ($IOSP)

SEC insider & ownership activity, last 12 months · CIK 1054905 · every row links its SEC filing

Over the last 12 months insiders sold $574K against $25K of open-market buying. Cleminson Ian sold $182K in discretionary trades (Feb). No red-flag 8-Ks in the window.

Aug 2025: net +$0 Sep 2025: net +$0 Oct 2025: net +$0 Nov 2025: net +$25K Dec 2025: net +$0 Jan 2026: net +$0 Mar 2026: net -$78K Mar 2026: net -$78K Apr 2026: net +$0 May 2026: net +$0 Jun 2026: net +$0 Jul 2026: net +$0
Monthly net open-market insider flow, last 12 months (up = net buying)

Insider flow

1 buyer, $25K (1 lots) · 6 sellers, $574K (13 lots)

InsiderBuysBoughtSellsSoldLast
Cleminson Ian0– 2$182KFeb 27, 2026
Milton C. Blackmore0– 3$130KFeb 27, 2026
Padfield Larry0– 3$130KFeb 27, 2026
David B. Jones0– 1$78KMar 3, 2026
Landless David0– 2$45KFeb 27, 2026
Leslie J. Parrette1$25K 0–Nov 14, 2025
Poccia Claudia0– 2$9KFeb 27, 2026

5%+ holders

HolderStakeClassScheduleEvent
Blackrock, Inc. 14.7% 13GApr 30, 2025 filing ↗
Vanguard Portfolio Management 7.5% 13GApr 29, 2026 filing ↗
Dimensional Fund Advisors LP 5.3% 13GJul 14, 2026 filing ↗
Vanguard Capital Management 5.2% 13GApr 30, 2026 filing ↗

Planned insider sales (Form 144)

No sale notices filed in the last 12 months.

Material events (8-K)

ItemEvent date
Officer/director changes (5.02)Jun 2, 2026 filing ↗
Shareholder vote (5.07)May 8, 2026 filing ↗
Earnings (2.02)May 7, 2026 filing ↗
Reg FD disclosure (7.01)May 7, 2026 filing ↗
Financial Statements and Exhibits (9.01)May 7, 2026 filing ↗
Earnings (2.02)Feb 17, 2026 filing ↗
Financial Statements and Exhibits (9.01)Feb 17, 2026 filing ↗
Earnings (2.02)Nov 4, 2025 filing ↗
Reg FD disclosure (7.01)Nov 4, 2025 filing ↗
Financial Statements and Exhibits (9.01)Nov 4, 2025 filing ↗
Earnings (2.02)Aug 5, 2025 filing ↗
Financial Statements and Exhibits (9.01)Aug 5, 2025 filing ↗