Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 6 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

6 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 16, 2016 IOSP S 489 $43.05 $21,051 0 Direct -100.00% Disposed 126.3% (price as of 2026-10-02)
Feb. 29, 2016 IOSP S 4,063 $43.56 $176,984 489 Direct -89.26% Disposed 123.6% (price as of 2026-10-02)
Feb. 29, 2016 IOSP S 1,477 $43.56 $64,338 489 Direct -75.13% Disposed 123.6% (price as of 2026-10-02)
Nov. 18, 2015 IOSP S 8,025 $57.50 $461,438 0 Direct -100.00% Disposed 69.4% (price as of 2026-10-02)

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 29, 2016 IOSP Stock Options Common Stock (4,063) $0.00 Feb. 20, 2023 4,063 Disposed
Feb. 29, 2016 IOSP Stock Options Common Stock (1,477) $41.31 Feb. 20, 2023 1,477 Disposed
Feb. 22, 2016 IOSP Stock Options Common Stock (489) $0.00 Feb. 22, 2023 489 Disposed

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

Initial ownership (Form 3) 9 holdings

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
May 20, 2015 IOSP Common Stock 8,025 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (1,477) 1,477 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (4,063) 4,063 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (489) 489 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (1,149) 1,149 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (3,160) 3,160 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (448) 448 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (1,498) 1,498 Direct
May 20, 2015 IOSP Stock Options→ Common Stock (4,120) 4,120 Direct