Xudong Feng
CIK 1463649 · View on SEC EDGAR ↗
First SEC filing: June 4, 2026 · Latest: June 4, 2026
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Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 20, 2022 | KOP | S | 2,430 | $24.37 | $59,219 | 32,840 Direct | -6.89% | Disposed | 88.8% (price as of 2026-08-21) |
| Nov. 23, 2020 | KOP | S | 3,752 | $27.35 | $102,617 | 32,192 Direct | -10.44% | Disposed | 68.2% (price as of 2026-08-21) |
| Sept. 5, 2019 | KOP | S | 2,442 | $26.92 | $65,739 | 27,510 Direct | -8.15% | Disposed | 70.9% (price as of 2026-08-21) |
| Aug. 18, 2016 | KOP | S | 500 | $31.79 | $15,895 | 21,144 Direct | -2.31% | Disposed | 44.7% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| June 15, 2026 | KOP | Dividend Equivalent Rights | Common Stock (34) | — | — | 34 | Acquired |
| March 23, 2026 | KOP | Dividend Equivalent Rights | Common Stock (50) | — | — | 50 | Acquired |
| March 23, 2026 | KOP | Dividend Equivalent Rights | Common Stock (30) | — | — | 30 | Acquired |
| May 8, 2025 | KOP | Restricted Stock Units | Common Stock (4,778) | — | — | 4,778 | Acquired |
| March 24, 2025 | KOP | Dividend Equivalent Rights | Common Stock (27) | — | — | 27 | Acquired |
| March 24, 2025 | KOP | Dividend Equivalent Rights | Common Stock (17) | — | — | 17 | Acquired |
| Dec. 16, 2024 | KOP | Dividend Equivalent Rights | Common Stock (21) | — | — | 21 | Acquired |
| Sept. 16, 2024 | KOP | Dividend Equivalent Rights | Common Stock (18) | — | — | 18 | Acquired |
| June 10, 2024 | KOP | Dividend Equivalent Rights | Common Stock (16) | — | — | 16 | Acquired |
| May 2, 2024 | KOP | Restricted Stock Units | Common Stock (2,079) | — | — | 2,079 | Acquired |
| March 25, 2024 | KOP | Dividend Equivalent Rights | Common Stock (20) | — | — | 20 | Acquired |
| March 25, 2024 | KOP | Dividend Equivalent Rights | Common Stock (8) | — | — | 8 | Acquired |
| Sept. 11, 2023 | KOP | Dividend Equivalent Rights | Common Stock (10) | — | — | 10 | Acquired |
| June 12, 2023 | KOP | Dividend Equivalent Rights | Common Stock (11) | — | — | 11 | Acquired |
| May 4, 2023 | KOP | Restricted Stock Units | Common Stock (3,513) | — | — | 3,513 | Acquired |
| April 27, 2023 | KOP | Dividend Equivalent Rights | Common Stock (37) | — | — | 37 | Acquired |
| Jan. 18, 2023 | KOP | Restricted Stock Units | Common Stock (817) | — | — | 817 | Acquired |
| June 15, 2022 | KOP | Restricted Stock Units | Common Stock (964) | — | — | 964 | Acquired |
| May 5, 2022 | KOP | Restricted Stock Units | Common Stock (4,326) | — | — | 4,326 | 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 |
|---|---|---|---|---|
| May 8, 2009 | KOP | No securities are beneficially owned. | 0 | Direct |