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David Slinkman
Insider
First SEC filing: March 18, 2025 · Latest: March 18, 2025
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 |
|---|---|---|---|---|---|---|---|---|---|
| March 16, 2025 | KWR | F | 154 | $128.47 | $19,784 | 3,031 Direct | -4.84% | Disposed | 25.1% (price as of 2026-10-02) |
| March 15, 2025 | KWR | A | 1,089 | · | · | 1,089 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | KWR | X | 4 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 15, 2025 | KWR | M | 358 | · | · | 716 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| March 15, 2025 | KWR | X | 2 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 15, 2025 | KWR | M | 233 | · | · | 466 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| March 15, 2025 | KWR | F | 100 | $128.47 | $12,847 | 3,185 Direct | -3.04% | Disposed | 25.1% (price as of 2026-10-02) |
| March 15, 2025 | KWR | X | 4 | · | · | 3,285 Direct | +0.12% | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | KWR | M | 358 | · | · | 3,281 Direct | +12.25% | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | KWR | F | 65 | $128.47 | $8,351 | 2,923 Direct | -2.18% | Disposed | 25.1% (price as of 2026-10-02) |
| March 15, 2025 | KWR | X | 2 | · | · | 2,988 Direct | +0.07% | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | KWR | M | 233 | · | · | 2,986 Direct | +8.46% | Acquired | (price as of 2026-10-02) |
| March 15, 2025 | KWR | F | 72 | $128.47 | $9,250 | 2,753 Direct | -2.55% | Disposed | 25.1% (price as of 2026-10-02) |
| Nov. 25, 2024 | KWR | S | 1,700 | $167.80 | $285,260 | 2,825 Direct | -37.57% | Disposed | -4.2% (price as of 2026-10-02) |
| March 15, 2024 | KWR | A | 1,074 | · | · | 1,773 Direct | +153.65% | Acquired | (price as of 2026-10-02) |
| March 15, 2024 | KWR | A | 699 | · | · | 699 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2024 | KWR | F | 157 | $200.16 | $31,425 | 4,525 Direct | -3.35% | Disposed | -19.7% (price as of 2026-10-02) |
| May 15, 2023 | KWR | M | 736 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 15, 2023 | KWR | M | 2,341 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 15, 2023 | KWR | M | 606 | · | · | 1,213 Direct | -33.32% | Disposed | (price as of 2026-10-02) |
| May 15, 2023 | KWR | S | 606 | $204.20 | $123,745 | 4,682 Direct | -11.46% | Disposed | -21.3% (price as of 2026-10-02) |
| May 15, 2023 | KWR | M | 606 | $178.29 | $108,044 | 5,288 Direct | +12.94% | Acquired | -9.8% (price as of 2026-10-02) |
| May 15, 2023 | KWR | S | 2,341 | $204.20 | $478,032 | 4,682 Direct | -33.33% | Disposed | -21.3% (price as of 2026-10-02) |
| May 15, 2023 | KWR | M | 2,341 | $136.64 | $319,874 | 7,023 Direct | +50.00% | Acquired | 17.6% (price as of 2026-10-02) |
| May 15, 2023 | KWR | S | 736 | $204.20 | $150,291 | 4,682 Direct | -13.58% | Disposed | -21.3% (price as of 2026-10-02) |
| May 15, 2023 | KWR | M | 736 | $154.92 | $114,021 | 5,418 Direct | +15.72% | Acquired | 3.8% (price as of 2026-10-02) |
| March 30, 2023 | KWR | F | 148 | $193.35 | $28,616 | 4,682 Direct | -3.06% | Disposed | -16.9% (price as of 2026-10-02) |
| March 15, 2023 | KWR | A | 776 | · | · | 4,830 Direct | +19.14% | Acquired | (price as of 2026-10-02) |
| Aug. 1, 2022 | KWR | F | 267 | $160.22 | $42,779 | 4,054 Direct | -6.18% | Disposed | 0.3% (price as of 2026-10-02) |
| March 16, 2022 | KWR | A | 1,819 | · | · | 1,819 Direct | · | Acquired | (price as of 2026-10-02) |
| March 16, 2022 | KWR | A | 560 | · | · | 4,321 Direct | +14.89% | Acquired | (price as of 2026-10-02) |
| Feb. 25, 2022 | KWR | F | 204 | $189.45 | $38,648 | 3,761 Direct | -5.15% | Disposed | -15.2% (price as of 2026-10-02) |
| March 15, 2021 | KWR | A | 1,123 | · | · | 1,123 Direct | · | Acquired | (price as of 2026-10-02) |
| March 15, 2021 | KWR | A | 312 | · | · | 3,965 Direct | +8.54% | Acquired | (price as of 2026-10-02) |
| March 5, 2021 | KWR | S | 531 | $262.63 | $139,457 | 3,653 Direct | -12.69% | Disposed | -38.8% (price as of 2026-10-02) |
| March 5, 2021 | KWR | S | 1,034 | $261.81 | $270,712 | 4,184 Direct | -19.82% | Disposed | -38.6% (price as of 2026-10-02) |
| March 5, 2021 | KWR | M | 1,565 | $154.92 | $242,450 | 5,218 Direct | +42.84% | Acquired | 3.8% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 180 | $272.93 | $49,127 | 3,653 Direct | -4.70% | Disposed | -41.1% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 224 | $272.19 | $60,971 | 3,833 Direct | -5.52% | Disposed | -40.9% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 100 | $270.07 | $27,007 | 4,057 Direct | -2.41% | Disposed | -40.5% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 83 | $268.49 | $22,285 | 4,157 Direct | -1.96% | Disposed | -40.1% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 156 | $266.20 | $41,527 | 4,240 Direct | -3.55% | Disposed | -39.6% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 83 | $265.01 | $21,996 | 4,396 Direct | -1.85% | Disposed | -39.3% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 79 | $263.88 | $20,847 | 4,479 Direct | -1.73% | Disposed | -39.1% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 263 | $262.72 | $69,095 | 4,558 Direct | -5.46% | Disposed | -38.8% (price as of 2026-10-02) |
| March 4, 2021 | KWR | S | 846 | $260.02 | $219,977 | 4,821 Direct | -14.93% | Disposed | -38.2% (price as of 2026-10-02) |
| March 4, 2021 | KWR | M | 2,014 | $154.92 | $312,009 | 5,667 Direct | +55.13% | Acquired | 3.8% (price as of 2026-10-02) |
| Feb. 26, 2021 | KWR | F | 122 | $282.38 | $34,450 | 3,653 Direct | -3.23% | Disposed | -43.1% (price as of 2026-10-02) |
| March 30, 2020 | KWR | A | 536 | · | · | 3,775 Direct | +16.55% | Acquired | (price as of 2026-10-02) |
| March 30, 2020 | KWR | A | 2,341 | · | · | 2,341 Direct | · | Acquired | (price as of 2026-10-02) |
| March 5, 2020 | KWR | M | 829 | · | · | 736 Direct | -52.97% | Disposed | (price as of 2026-10-02) |
| March 5, 2020 | KWR | M | 736 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 4, 2020 | KWR | M | 645 | · | · | 1,565 Direct | -29.19% | Disposed | (price as of 2026-10-02) |
| March 4, 2020 | KWR | M | 1,369 | · | · | 736 Direct | -65.04% | Disposed | (price as of 2026-10-02) |
| Aug. 15, 2019 | KWR | A | 2,210 | · | · | 2,210 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 15, 2019 | KWR | A | 2,105 | · | · | 2,105 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 15, 2019 | KWR | A | 451 | · | · | 3,239 Direct | +16.18% | Acquired | (price as of 2026-10-02) |
| Aug. 15, 2019 | KWR | A | 430 | · | · | 2,788 Direct | +18.24% | Acquired | (price as of 2026-10-02) |
| Aug. 15, 2019 | KWR | A | 968 | · | · | 2,358 Direct | +69.64% | Acquired | (price as of 2026-10-02) |
| Aug. 1, 2019 | KWR | A | 1,390 | $182.27 | $253,355 | 1,390 Direct | · | Acquired | -11.8% (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 |
|---|---|---|---|---|---|---|---|
| March 15, 2025 | KWR | Restricted Stock Units | Common Stock | · | · | 1,089 | Acquired |
| March 15, 2025 | KWR | Dividend Equivalent Rights | Common Stock | · | March 15, 2025 | 4 | Disposed |
| March 15, 2025 | KWR | Restricted Stock Units | Common Stock | · | · | 358 | Disposed |
| March 15, 2025 | KWR | Dividend Equivalent Rights | Common Stock | · | March 15, 2025 | 2 | Disposed |
| March 15, 2025 | KWR | Restricted Stock Units | Common Stock | · | · | 233 | Disposed |
| March 15, 2024 | KWR | Restricted Stock Units | Common Stock | · | · | 1,074 | Acquired |
| March 15, 2024 | KWR | Restricted Stock Units | Common Stock | · | · | 699 | Acquired |
| May 15, 2023 | KWR | Employee Stock Option (right to buy) | Common Stock | $154.92 | Feb. 25, 2026 | 736 | Disposed |
| May 15, 2023 | KWR | Employee Stock Option (right to buy) | Common Stock | $136.64 | March 30, 2027 | 2,341 | Disposed |
| May 15, 2023 | KWR | Employee Stock Option (right to buy) | Common Stock | $178.29 | March 16, 2029 | 606 | Disposed |
| March 16, 2022 | KWR | Employee Stock Option (right to buy) | Common Stock | $178.29 | March 16, 2029 | 1,819 | Acquired |
| March 15, 2021 | KWR | Employee Stock Option (right to buy) | Common Stock | $245.49 | March 15, 2028 | 1,123 | Acquired |
| March 30, 2020 | KWR | Employee Stock Option (right to buy) | Common Stock | $136.64 | March 30, 2027 | 2,341 | Acquired |
| March 5, 2020 | KWR | Employee Stock Option (right to buy) | Common Stock | $154.92 | Feb. 25, 2026 | 829 | Disposed |
| March 5, 2020 | KWR | Employee Stock Option (right to buy) | Common Stock | $154.92 | Feb. 26, 2025 | 736 | Disposed |
| March 4, 2020 | KWR | Employee Stock Option (right to buy) | Common Stock | $154.92 | Feb. 25, 2026 | 645 | Disposed |
| March 4, 2020 | KWR | Employee Stock Option (right to buy) | Common Stock | $154.92 | Feb. 26, 2025 | 1,369 | Disposed |
| Aug. 15, 2019 | KWR | Employee Stock Option (right to buy) | Common Stock | $154.92 | Feb. 25, 2026 | 2,210 | Acquired |
| Aug. 15, 2019 | KWR | Employee Stock Option (right to buy) | Common Stock | $154.92 | Feb. 26, 2025 | 2,105 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).