Larry Padfield

CIK 1567635 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 24, 2013 · Latest: Jan. 24, 2013

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Insider at

Insider transactions

0 buys (P) 4 sells (S) Net: $-175,245 + 44 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

44 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Feb. 27, 2026 IOSP S 307 $76.79 $23,575 9,453 Direct -3.15% Disposed 20.3% (price as of 2026-08-20)
Feb. 27, 2026 IOSP S 287 $76.30 $21,898 9,760 Direct -2.86% Disposed 21.0% (price as of 2026-08-20)
Feb. 27, 2026 IOSP S 594 $76.56 $45,477 9,453 Direct -5.91% Disposed 20.6% (price as of 2026-08-20)
Feb. 20, 2026 IOSP S 1,030 $81.84 $84,295 8,508 Direct -10.80% Disposed 12.8% (price as of 2026-08-20)
Feb. 21, 2025 IOSP S 196 $103.30 $20,247 7,299 Direct -2.62% Disposed -10.6% (price as of 2026-08-20)
Nov. 13, 2023 IOSP S 977 $101.54 $99,205 6,600 Direct -12.89% Disposed -9.1% (price as of 2026-08-20)

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
Feb. 20, 2026 IOSP Stock Option Common Stock (1,030) $44.18 Feb. 22, 2026 1,030 Disposed
Nov. 13, 2023 IOSP Stock Option Common Stock (977) $46.03 Feb. 14, 2024 977 Disposed
May 12, 2023 IOSP Stock Option Common Stock (1,108) $40.58 May 15, 2023 1,108 Disposed
Feb. 27, 2023 IOSP Stock Option Common Stock (297) $109.42 Feb. 27, 2033 297 Acquired
Feb. 25, 2022 IOSP Common Stock Common Stock (740) $0.00 Feb. 25, 2029 740 Disposed
Feb. 21, 2022 IOSP Stock Option Common Stock (326) $99.68 Feb. 21, 2032 326 Acquired
Nov. 17, 2021 IOSP Stock Option Common Stock (293) $0.00 March 15, 2022 293 Disposed
Feb. 26, 2021 IOSP Stock Option Common Stock (283) $0.00 March 21, 2021 283 Disposed
Feb. 22, 2021 IOSP stock option Common Stock (601) $0.00 Feb. 22, 2024 601 Acquired
Feb. 22, 2021 IOSP stock option Common Stock (300) $99.85 Feb. 22, 2031 300 Acquired
Feb. 22, 2021 IOSP Stock Option Common Stock (300) $99.85 Feb. 22, 2031 300 Acquired
Feb. 24, 2020 IOSP stock option stock option (627) $0.00 Feb. 24, 2023 627 Acquired
Feb. 24, 2020 IOSP Stock Option stock option (313) $95.70 Feb. 24, 2030 313 Acquired
March 11, 2019 IOSP Stock Option Common Stock (441) $0.00 Feb. 23, 2025 441 Disposed
March 11, 2019 IOSP Stock Option Common Stock (444) $0.00 Feb. 22, 2026 444 Disposed
Feb. 25, 2019 IOSP Stock Options Common Stock (370) $81.07 Feb. 25, 2029 370 Acquired
Feb. 25, 2019 IOSP Stock Options Common Stock (740) $0.00 Feb. 25, 2029 740 Acquired
Feb. 20, 2018 IOSP Stock Option Common Stock (880) $68.20 Feb. 20, 2028 880 Acquired
Feb. 20, 2018 IOSP Stock Option Common Stock (293) $0.00 Feb. 20, 2028 293 Acquired
Feb. 21, 2017 IOSP Stock Options Common Stock (283) $0.00 Feb. 21, 2027 283 Acquired
Feb. 21, 2017 IOSP Stock Options Common Stock (850) $70.60 Feb. 21, 2017 850 Acquired
Aug. 17, 2016 IOSP Stock Option Common Stock (1,000) $0.00 March 15, 2017 1,000 Disposed
Feb. 23, 2015 IOSP Stock Options Common Stock (444) $0.00 Feb. 23, 2025 444 Acquired
Feb. 23, 2015 IOSP Stock Options Common Stock (1,035) $43.95 Feb. 23, 2025 1,035 Acquired
Feb. 14, 2014 IOSP Stock Options (NEDSOP) Common Stock (1,089) $46.03 Feb. 14, 2024 1,089 Acquired
May 15, 2013 IOSP Stock Options Common Stock (1,108) $40.58 May 15, 2023 1,108 Acquired
May 15, 2013 IOSP Stock Options Common Stock (1,000) $0.00 May 15, 2017 1,000 Acquired

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

Initial ownership (Form 3) 1 holding

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

Date Ticker Security Shares Ownership
Jan. 24, 2013 IOSP Common Stock 460 Direct