Dennis Graham John Kerrison

CIK 1233481 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 14, 2005 · Latest: Jan. 14, 2005

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 16 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

16 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 3, 2005 IOSP P 5,704 $19.27 $109,916 124,550 Direct +4.80% Acquired 869.9% (price as of 2026-08-21)
Feb. 24, 2005 IOSP S 1,200 $18.43 $22,116 118,846 Direct -1.00% Disposed 914.1% (price as of 2026-08-21)
Feb. 23, 2005 IOSP S 7,700 $18.39 $141,603 120,046 Direct -6.03% Disposed 916.3% (price as of 2026-08-21)
Feb. 22, 2005 IOSP S 10,850 $18.17 $197,144 127,746 Direct -7.83% Disposed 928.6% (price as of 2026-08-21)
Feb. 18, 2005 IOSP S 33,500 $19.01 $636,835 138,596 Direct -19.47% Disposed 883.2% (price as of 2026-08-21)
May 25, 2004 IOSP S 8,830 $21.55 $190,286 85,048 Direct -9.41% Disposed 767.3% (price as of 2026-08-21)
May 13, 2004 IOSP P 1,000 $22.65 $22,650 82,948 Direct +1.22% Acquired 725.2% (price as of 2026-08-21)
May 3, 2004 IOSP P 2,000 $23.46 $46,920 81,948 Direct +2.50% Acquired 696.7% (price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
March 4, 2005 IOSP OPTION COMMON STOCK (5,704) $0.00 March 4, 2015 5,704 Acquired
March 4, 2005 IOSP OPTION COMMON STOCK (5,704) $0.00 March 4, 2018 5,704 Acquired
Feb. 20, 2005 IOSP OPTIONS COMMON STOCK (2,506) $0.00 Feb. 20, 2012 2,506 Disposed
Feb. 18, 2005 IOSP OPTION COMMON STOCK (55,009) $7.81 May 10, 2010 55,009 Disposed
Feb. 18, 2005 IOSP OPTION COMMON STOCK (27,504) $7.81 May 10, 2010 27,504 Disposed
Feb. 18, 2005 IOSP OPTION COMMON STOCK (6,680) $19.77 Feb. 18, 2015 6,680 Acquired
Feb. 18, 2005 IOSP OPTION COMMON STOCK (25,000) $0.00 Feb. 18, 2015 25,000 Acquired
Feb. 4, 2005 IOSP OPTIONS COMMON STOCK (911) $19.64 Aug. 1, 2005 911 Acquired
Nov. 8, 2004 IOSP OPTIONS COMMON STOCK (3,624) $13.28 Aug. 8, 2009 3,624 Disposed
May 24, 2004 IOSP OPTIONS COMMON STOCK (10,930) $13.28 Aug. 8, 2009 10,930 Disposed
May 12, 2004 IOSP OPTIONS COMMON STOCK (20,000) $0.00 May 12, 2014 20,000 Acquired
May 12, 2004 IOSP OPTIONS COMMON STOCK (5,500) $23.00 May 12, 2014 5,500 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

IOSP

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2004 $739,569 $534,383 — — — — $802,824 —
2003 $639,587 $458,772 — — — — $290,288 —

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.