Larry Padfield
Insider
First SEC filing: Jan. 24, 2013 · Latest: Jan. 24, 2013
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net: $-175,245
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| 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 | 27.0% (price as of 2026-10-06) |
| Feb. 27, 2026 | IOSP | S | 287 | $76.30 | $21,898 | 9,760 Direct | -2.86% | Disposed | 27.8% (price as of 2026-10-06) |
| Feb. 27, 2026 | IOSP | S | 594 | $76.56 | $45,477 | 9,453 Direct | -5.91% | Disposed | 27.4% (price as of 2026-10-06) |
| Feb. 23, 2026 | IOSP | A | 1,539 | · | · | 10,047 Direct | +18.09% | Acquired | (price as of 2026-10-06) |
| Feb. 20, 2026 | IOSP | M | 1,030 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Feb. 20, 2026 | IOSP | S | 1,030 | $81.84 | $84,295 | 8,508 Direct | -10.80% | Disposed | 19.2% (price as of 2026-10-06) |
| Feb. 20, 2026 | IOSP | M | 1,030 | $44.18 | $45,505 | 9,538 Direct | +12.11% | Acquired | 120.8% (price as of 2026-10-06) |
| Feb. 24, 2025 | IOSP | A | 1,209 | · | · | 8,508 Direct | +16.56% | Acquired | (price as of 2026-10-06) |
| Feb. 21, 2025 | IOSP | S | 196 | $103.30 | $20,247 | 7,299 Direct | -2.62% | Disposed | -5.6% (price as of 2026-10-06) |
| Feb. 26, 2024 | IOSP | A | 782 | · | · | 7,495 Direct | +11.65% | Acquired | (price as of 2026-10-06) |
| Nov. 13, 2023 | IOSP | M | 977 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 13, 2023 | IOSP | S | 977 | $101.54 | $99,205 | 6,600 Direct | -12.89% | Disposed | -3.9% (price as of 2026-10-06) |
| Nov. 13, 2023 | IOSP | M | 977 | $46.03 | $44,971 | 7,577 Direct | +14.80% | Acquired | 111.9% (price as of 2026-10-06) |
| May 12, 2023 | IOSP | M | 1,108 | $40.58 | $44,963 | 0 Direct | -100.00% | Disposed | 140.3% (price as of 2026-10-06) |
| May 12, 2023 | IOSP | F | 462 | $97.33 | $44,966 | 6,600 Direct | -6.54% | Disposed | 0.2% (price as of 2026-10-06) |
| May 12, 2023 | IOSP | M | 1,108 | $40.58 | $44,963 | 7,062 Direct | +18.61% | Acquired | 140.3% (price as of 2026-10-06) |
| Feb. 27, 2023 | IOSP | A | 297 | · | · | 297 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 27, 2023 | IOSP | A | 594 | · | · | 4,814 Direct | +14.08% | Acquired | (price as of 2026-10-06) |
| Feb. 25, 2022 | IOSP | M | 740 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Feb. 25, 2022 | IOSP | M | 740 | · | · | 4,872 Direct | +17.91% | Acquired | (price as of 2026-10-06) |
| Feb. 21, 2022 | IOSP | A | 326 | · | · | 326 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 21, 2022 | IOSP | A | 652 | · | · | 4,132 Direct | +18.74% | Acquired | (price as of 2026-10-06) |
| Nov. 17, 2021 | IOSP | M | 293 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 17, 2021 | IOSP | M | 293 | · | · | 3,480 Direct | +9.19% | Acquired | (price as of 2026-10-06) |
| Feb. 26, 2021 | IOSP | M | 283 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Feb. 26, 2021 | IOSP | M | 283 | · | · | 3,187 Direct | +9.75% | Acquired | (price as of 2026-10-06) |
| Feb. 22, 2021 | IOSP | A | 601 | · | · | 601 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 22, 2021 | IOSP | A | 300 | · | · | 300 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 22, 2021 | IOSP | A | 300 | · | · | 300 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 22, 2021 | IOSP | A | 601 | · | · | 3,505 Direct | +20.70% | Acquired | (price as of 2026-10-06) |
| Feb. 24, 2020 | IOSP | A | 627 | · | · | 627 Direct | · | Acquired | (price as of 2026-10-06) |
| Feb. 24, 2020 | IOSP | A | 313 | · | · | 313 Direct | · | Acquired | (price as of 2026-10-06) |
| March 11, 2019 | IOSP | M | 441 | · | · | 7,566 Direct | -5.51% | Disposed | (price as of 2026-10-06) |
| March 11, 2019 | IOSP | M | 444 | · | · | 8,007 Direct | -5.25% | Disposed | (price as of 2026-10-06) |
| March 11, 2019 | IOSP | M | 441 | · | · | 2,904 Direct | +17.90% | Acquired | (price as of 2026-10-06) |
| March 11, 2019 | IOSP | M | 444 | · | · | 2,463 Direct | +21.99% | Acquired | (price as of 2026-10-06) |
| Feb. 25, 2019 | IOSP | A | 370 | $81.07 | $29,996 | 8,451 Direct | +4.58% | Acquired | 20.3% (price as of 2026-10-06) |
| Feb. 25, 2019 | IOSP | A | 740 | · | · | 8,081 Direct | +10.08% | Acquired | (price as of 2026-10-06) |
| Feb. 20, 2018 | IOSP | A | 880 | $68.20 | $60,016 | 7,341 Direct | +13.62% | Acquired | 43.0% (price as of 2026-10-06) |
| Feb. 20, 2018 | IOSP | A | 293 | · | · | 6,461 Direct | +4.75% | Acquired | (price as of 2026-10-06) |
| Feb. 21, 2017 | IOSP | A | 283 | · | · | 6,168 Direct | +4.81% | Acquired | (price as of 2026-10-06) |
| Feb. 21, 2017 | IOSP | A | 850 | $70.60 | $60,010 | 5,885 Direct | +16.88% | Acquired | 38.1% (price as of 2026-10-06) |
| Aug. 17, 2016 | IOSP | M | 1,000 | · | · | 5,035 Direct | -16.57% | Disposed | (price as of 2026-10-06) |
| Aug. 17, 2016 | IOSP | M | 1,000 | · | · | 2,019 Direct | +98.14% | Acquired | (price as of 2026-10-06) |
| Feb. 23, 2015 | IOSP | A | 444 | · | · | 4,676 Direct | +10.49% | Acquired | (price as of 2026-10-06) |
| Feb. 23, 2015 | IOSP | A | 1,035 | $43.95 | $45,488 | 4,232 Direct | +32.37% | Acquired | 121.9% (price as of 2026-10-06) |
| Feb. 14, 2014 | IOSP | A | 1,089 | $46.03 | $50,127 | 3,197 Direct | +51.66% | Acquired | 111.9% (price as of 2026-10-06) |
| July 5, 2013 | IOSP | J | 559 | $40.18 | $22,461 | 1,019 Direct | +121.52% | Acquired | 142.7% (price as of 2026-10-06) |
| May 15, 2013 | IOSP | A | 1,108 | $40.58 | $44,963 | 2,108 Direct | +110.80% | Acquired | 140.3% (price as of 2026-10-06) |
| May 15, 2013 | IOSP | A | 1,000 | · | · | 1,000 Direct | · | Acquired | (price as of 2026-10-06) |
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 | $44.18 | Feb. 22, 2026 | 1,030 | Disposed |
| Nov. 13, 2023 | IOSP | Stock Option | Common Stock | $46.03 | Feb. 14, 2024 | 977 | Disposed |
| May 12, 2023 | IOSP | Stock Option | Common Stock | $40.58 | May 15, 2023 | 1,108 | Disposed |
| Feb. 27, 2023 | IOSP | Stock Option | Common Stock | $109.42 | Feb. 27, 2033 | 297 | Acquired |
| Feb. 25, 2022 | IOSP | Common Stock | Common Stock | $0.00 | Feb. 25, 2029 | 740 | Disposed |
| Feb. 21, 2022 | IOSP | Stock Option | Common Stock | $99.68 | Feb. 21, 2032 | 326 | Acquired |
| Nov. 17, 2021 | IOSP | Stock Option | Common Stock | $0.00 | March 15, 2022 | 293 | Disposed |
| Feb. 26, 2021 | IOSP | Stock Option | Common Stock | $0.00 | March 21, 2021 | 283 | Disposed |
| Feb. 22, 2021 | IOSP | stock option | Common Stock | $0.00 | Feb. 22, 2024 | 601 | Acquired |
| Feb. 22, 2021 | IOSP | stock option | Common Stock | $99.85 | Feb. 22, 2031 | 300 | Acquired |
| Feb. 22, 2021 | IOSP | Stock Option | Common Stock | $99.85 | Feb. 22, 2031 | 300 | Acquired |
| Feb. 24, 2020 | IOSP | stock option | stock option | $0.00 | Feb. 24, 2023 | 627 | Acquired |
| Feb. 24, 2020 | IOSP | Stock Option | stock option | $95.70 | Feb. 24, 2030 | 313 | Acquired |
| March 11, 2019 | IOSP | Stock Option | Common Stock | $0.00 | Feb. 23, 2025 | 441 | Disposed |
| March 11, 2019 | IOSP | Stock Option | Common Stock | $0.00 | Feb. 22, 2026 | 444 | Disposed |
| Feb. 25, 2019 | IOSP | Stock Options | Common Stock | $81.07 | Feb. 25, 2029 | 370 | Acquired |
| Feb. 25, 2019 | IOSP | Stock Options | Common Stock | $0.00 | Feb. 25, 2029 | 740 | Acquired |
| Feb. 20, 2018 | IOSP | Stock Option | Common Stock | $68.20 | Feb. 20, 2028 | 880 | Acquired |
| Feb. 20, 2018 | IOSP | Stock Option | Common Stock | $0.00 | Feb. 20, 2028 | 293 | Acquired |
| Feb. 21, 2017 | IOSP | Stock Options | Common Stock | $0.00 | Feb. 21, 2027 | 283 | Acquired |
| Feb. 21, 2017 | IOSP | Stock Options | Common Stock | $70.60 | Feb. 21, 2017 | 850 | Acquired |
| Aug. 17, 2016 | IOSP | Stock Option | Common Stock | $0.00 | March 15, 2017 | 1,000 | Disposed |
| Feb. 23, 2015 | IOSP | Stock Options | Common Stock | $0.00 | Feb. 23, 2025 | 444 | Acquired |
| Feb. 23, 2015 | IOSP | Stock Options | Common Stock | $43.95 | Feb. 23, 2025 | 1,035 | Acquired |
| Feb. 14, 2014 | IOSP | Stock Options (NEDSOP) | Common Stock | $46.03 | Feb. 14, 2024 | 1,089 | Acquired |
| May 15, 2013 | IOSP | Stock Options | Common Stock | $40.58 | May 15, 2023 | 1,108 | Acquired |
| May 15, 2013 | IOSP | Stock Options | Common Stock | $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 |