Milton C. Blackmore

CIK: 0001493440

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)6 (60.0%)

Position reduction

Option Exercises (M)2 (20.0%)

Derivative conversions

Awards (A)2 (20.0%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

IOSP

INNOSPEC INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (10 total)

IOSP
INNOSPEC INC.
Feb 27, 2026
Sale(S)
Direct
307 shares at avg. $76.79$24K
IOSP
INNOSPEC INC.
Feb 27, 2026
Sale(S)
Direct
287 shares at avg. $76.30$22K
IOSP
INNOSPEC INC.
Feb 27, 2026
Sale(S)
Direct
594 shares at avg. $76.56$45K
IOSP
INNOSPEC INC.
Feb 23, 2026
Award(A)
Direct
1.5K shares-
IOSP
INNOSPEC INC.
Feb 20, 2026
Exercise(M)
Direct
1K shares at avg. $44.18$46K
IOSP
INNOSPEC INC.
Feb 20, 2026
Sale(S)
Direct
1K shares at avg. $81.84$84K
IOSP
INNOSPEC INC.
Feb 24, 2025
Award(A)
Direct
1.2K shares-
IOSP
INNOSPEC INC.
Feb 21, 2025
Sale(S)
Direct
652 shares at avg. $103.30$67K
IOSP
INNOSPEC INC.
Nov 13, 2024
Exercise(M)
Direct
1K shares at avg. $43.95$45K
IOSP
INNOSPEC INC.
Nov 13, 2024
Sale(S)
Direct
1K shares at avg. $122.92$127K

		Type	Shares	Price		Ownership
Feb 27, 2026	IOSP INNOSPEC INC.	Sale(S)	307	$76.79	$23,575	Direct
Feb 27, 2026	IOSP INNOSPEC INC.	Sale(S)	287	$76.30	$21,898	Direct
Feb 27, 2026	IOSP INNOSPEC INC.	Sale(S)	594	$76.56	$45,474	Direct
Feb 23, 2026	IOSP INNOSPEC INC.	Award(A)	1,539	-	$0	Direct
Feb 20, 2026	IOSP INNOSPEC INC.	Exercise(M)	1,030	$44.18	$45,505	Direct
Feb 20, 2026	IOSP INNOSPEC INC.	Sale(S)	1,030	$81.84	$84,296	Direct
Feb 24, 2025	IOSP INNOSPEC INC.	Award(A)	1,209	-	-	Direct
Feb 21, 2025	IOSP INNOSPEC INC.	Sale(S)	652	$103.30	$67,352	Direct
Nov 13, 2024	IOSP INNOSPEC INC.	Exercise(M)	1,035	$43.95	$45,488	Direct
Nov 13, 2024	IOSP INNOSPEC INC.	Sale(S)	1,035	$122.92	$127,222	Direct

1-10 of 10 transactions

About Blackmore Milton C

Blackmore Milton C (SEC CIK 0001493440) files insider reports with the SEC as Director of INNOSPEC INC. (IOSP).

Signal8 holds 6 ownership filings by Blackmore Milton C, all Form 4s, filed between Nov 14, 2024 and Mar 6, 2026. Those filings report 10 transactions, from Nov 13, 2024 to Feb 27, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Blackmore Milton C's filings is in ENGLEWOOD, CO.

Recent filings by Blackmore Milton C

Feb 27, 2026: Open-market sales of IOSP shares (3 lines, Form 4, code S).
Feb 23, 2026: Grant or award of IOSP shares (Form 4, code A).
Feb 20, 2026: Option exercise of IOSP shares (Form 4, code M).
Feb 20, 2026: Open-market sale of IOSP shares (Form 4, code S).
Feb 24, 2025: Grant or award of IOSP shares (Form 4, code A).

Other insiders filing for INNOSPEC INC. (IOSP)

BARNES CORBIN, SVP, Corporate Dev and IR
GRIFFIN HARDY LOUIS III, SVP, HUMAN RESOURCES
Cleminson Ian, EVP & CFO
MCROBBIE IAN MALCOLM, Senior VP R&T
Jones David B., SVP, GC & CCO
Williams Patrick, PRESIDENT & CEO

How to read Form 4 transaction codes