Hardy Louis Griffin III

CIK: 0001862015

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)1 (9.1%)

Position reduction

Option Exercises (M)1 (9.1%)

Derivative conversions

Awards (A)5 (45.5%)

Compensation grants

Other (G, F, J, C, D, …)4 (36.4%)

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

Companies & Roles (1)

IOSP

INNOSPEC INC.

Officer

Discretionary Trading P&L

Holdings

Transaction History (11 total)

IOSP
INNOSPEC INC.
Oct 1, 2026
Award(A)
Phantom Stock
Direct
2.7K shares-
IOSP
INNOSPEC INC.
Feb 27, 2026
Tax Payment(F)
Direct
401 shares at avg. $78.34$31K
IOSP
INNOSPEC INC.
Feb 23, 2026
Award(A)
Direct
2.5K shares-
IOSP
INNOSPEC INC.
Feb 16, 2026
Award(A)
Direct
1.3K shares-
IOSP
INNOSPEC INC.
May 13, 2025
Tax Payment(F)
Direct
600 shares at avg. $91.53$55K
IOSP
INNOSPEC INC.
Feb 24, 2025
Award(A)
Direct
1.7K shares-
IOSP
INNOSPEC INC.
Feb 21, 2025
Exercise(M)
Direct
121 shares at avg. $99.68$12K
IOSP
INNOSPEC INC.
Feb 21, 2025
Disposition(D)
Direct
121 shares at avg. $101.99$12K
IOSP
INNOSPEC INC.
Feb 21, 2025
Award(A)
Direct
1.6K shares-
IOSP
INNOSPEC INC.
Feb 21, 2025
Tax Payment(F)
Direct
488 shares at avg. $105.07$51K
IOSP
INNOSPEC INC.
Nov 18, 2024
Sale(S)
Direct
161 shares at avg. $117.52$19K

		Type	Shares	Price		Ownership
Oct 1, 2026	IOSP INNOSPEC INC.	Award(A) Phantom Stock	2,685	-	-	Direct
Feb 27, 2026	IOSP INNOSPEC INC.	Tax Payment(F)	401	$78.34	$31,414	Direct
Feb 23, 2026	IOSP INNOSPEC INC.	Award(A)	2,521	-	$0	Direct
Feb 16, 2026	IOSP INNOSPEC INC.	Award(A)	1,299	-	$0	Direct
May 13, 2025	IOSP INNOSPEC INC.	Tax Payment(F)	600	$91.53	$54,918	Direct
Feb 24, 2025	IOSP INNOSPEC INC.	Award(A)	1,682	-	-	Direct
Feb 21, 2025	IOSP INNOSPEC INC.	Exercise(M)	121	$99.68	$12,061	Direct
Feb 21, 2025	IOSP INNOSPEC INC.	Disposition(D)	121	$101.99	$12,341	Direct
Feb 21, 2025	IOSP INNOSPEC INC.	Award(A)	1,625	-	-	Direct
Feb 21, 2025	IOSP INNOSPEC INC.	Tax Payment(F)	488	$105.07	$51,274	Direct
Nov 18, 2024	IOSP INNOSPEC INC.	Sale(S)	161	$117.52	$18,921	Direct

1-11 of 11 transactions

About GRIFFIN HARDY LOUIS III

GRIFFIN HARDY LOUIS III (SEC CIK 0001862015) files insider reports with the SEC as SVP, HUMAN RESOURCES of INNOSPEC INC. (IOSP).

Signal8 holds 8 ownership filings by GRIFFIN HARDY LOUIS III, all Form 4s, filed between Jan 30, 2025 and Oct 5, 2026. Those filings report 11 transactions, from Nov 18, 2024 to Oct 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on GRIFFIN HARDY LOUIS III's filings is in ENGLEWOOD, CO.

Recent filings by GRIFFIN HARDY LOUIS III

Oct 1, 2026: Grant or award of IOSP derivative securities (Form 4, code A).
Feb 27, 2026: Tax withholding of IOSP shares (Form 4, code F).
Feb 23, 2026: Grant or award of IOSP shares (Form 4, code A).
Feb 16, 2026: Grant or award of IOSP shares (Form 4, code A).
May 13, 2025: Tax withholding of IOSP shares (Form 4, code F).

Other insiders filing for INNOSPEC INC. (IOSP)

BARNES CORBIN, SVP, Corporate Dev and IR
Cleminson Ian, EVP & CFO
MCROBBIE IAN MALCOLM, Senior VP R&T
Jones David B., SVP, GC & CCO
Williams Patrick, PRESIDENT & CEO
Bausch Shelley J, Director

How to read Form 4 transaction codes