On this page
Corbin Barnes
Insider
First SEC filing: Feb. 17, 2026 · Latest: Feb. 17, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 | F | 166 | $78.34 | $13,004 | 13,080 Direct | -1.25% | Disposed | 24.3% (price as of 2026-10-02) |
| Feb. 23, 2026 | IOSP | A | 2,481 | · | · | 13,246 Direct | +23.05% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2026 | IOSP | A | 1,730 | · | · | 10,765 Direct | +19.15% | Acquired | (price as of 2026-10-02) |
| May 13, 2025 | IOSP | F | 740 | $91.53 | $67,732 | 8,998 Direct | -7.60% | Disposed | 6.4% (price as of 2026-10-02) |
| Feb. 24, 2025 | IOSP | A | 1,687 | · | · | 9,738 Direct | +20.95% | Acquired | (price as of 2026-10-02) |
| Feb. 24, 2025 | IOSP | M | 598 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 24, 2025 | IOSP | S | 598 | $103.06 | $61,630 | 8,051 Direct | -6.91% | Disposed | -5.5% (price as of 2026-10-02) |
| Feb. 24, 2025 | IOSP | M | 598 | $99.68 | $59,609 | 8,649 Direct | +7.43% | Acquired | -2.3% (price as of 2026-10-02) |
| Feb. 21, 2025 | IOSP | M | 200 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 21, 2025 | IOSP | D | 200 | $101.99 | $20,398 | 8,051 Direct | -2.42% | Disposed | -4.5% (price as of 2026-10-02) |
| Feb. 21, 2025 | IOSP | M | 200 | $99.68 | $19,936 | 8,251 Direct | +2.48% | Acquired | -2.3% (price as of 2026-10-02) |
| Feb. 21, 2025 | IOSP | S | 2,692 | $103.30 | $278,084 | 8,051 Direct | -25.06% | Disposed | -5.7% (price as of 2026-10-02) |
| Feb. 21, 2025 | IOSP | A | 2,692 | · | · | 10,743 Direct | +33.44% | Acquired | (price as of 2026-10-02) |
| Nov. 18, 2024 | IOSP | S | 307 | $117.52 | $36,079 | 8,051 Direct | -3.67% | Disposed | -17.1% (price as of 2026-10-02) |
| May 14, 2024 | IOSP | F | 1,110 | $128.82 | $142,990 | 8,051 Direct | -12.12% | Disposed | -24.4% (price as of 2026-10-02) |
| Feb. 26, 2024 | IOSP | A | 1,306 | · | · | 9,161 Direct | +16.63% | Acquired | (price as of 2026-10-02) |
| Feb. 22, 2024 | IOSP | A | 1,875 | · | · | 8,549 Direct | +28.09% | Acquired | (price as of 2026-10-02) |
| Feb. 22, 2024 | IOSP | F | 694 | $123.77 | $85,896 | 7,855 Direct | -8.12% | Disposed | -21.3% (price as of 2026-10-02) |
| March 17, 2023 | IOSP | P | 400 | $99.75 | $39,900 | 1,847 Direct | +27.64% | Acquired | -2.3% (price as of 2026-10-02) |
| March 7, 2023 | IOSP | P | 1,250 | $106.00 | $132,500 | 1,447 Direct | +634.52% | Acquired | -8.1% (price as of 2026-10-02) |
| Feb. 27, 2023 | IOSP | A | 591 | · | · | 591 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2023 | IOSP | A | 197 | · | · | 197 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 21, 2022 | IOSP | A | 598 | · | · | 598 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 21, 2022 | IOSP | A | 200 | · | · | 200 Direct | · | Acquired | (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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Feb. 24, 2025 | IOSP | Employee Stock Option | Common Stock | $99.68 | Feb. 21, 2032 | 598 | Disposed |
| Feb. 21, 2025 | IOSP | Stock Appreciation Right | Common Stock | $99.68 | Feb. 21, 2032 | 200 | Disposed |
| Feb. 27, 2023 | IOSP | Employee stock option (right to buy) | Common Stock | $109.42 | Feb. 27, 2033 | 591 | Acquired |
| Feb. 21, 2022 | IOSP | Employee Stock Option | Common Stock | $99.68 | Feb. 21, 2032 | 598 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).