Sonja Michelle Wilkerson
CIK 1245155 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 12, 2018 · Latest: Sept. 12, 2018
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 30 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 15, 2026 | KOP | A | 30 | — | — | 356 Direct | +9.20% | Acquired | (price as of 2026-08-21) |
| May 7, 2026 | KOP | A | 3,280 | — | — | 17,976 Direct | +22.32% | Acquired | (price as of 2026-08-21) |
| March 23, 2026 | KOP | A | 50 | — | — | 300 Direct | +20.00% | Acquired | (price as of 2026-08-21) |
| March 23, 2026 | KOP | A | 25 | — | — | 326 Direct | +8.31% | Acquired | (price as of 2026-08-21) |
| Dec. 16, 2025 | KOP | A | 28 | — | — | 250 Direct | +12.61% | Acquired | (price as of 2026-08-21) |
| Sept. 15, 2025 | KOP | A | 28 | — | — | 222 Direct | +14.43% | Acquired | (price as of 2026-08-21) |
| May 8, 2025 | KOP | A | 4,778 | — | — | 14,696 Direct | +48.18% | Acquired | (price as of 2026-08-21) |
| March 24, 2025 | KOP | A | 22 | — | — | 168 Direct | +15.07% | Acquired | (price as of 2026-08-21) |
| March 24, 2025 | KOP | A | 17 | — | — | 146 Direct | +13.18% | Acquired | (price as of 2026-08-21) |
| March 7, 2025 | KOP | A | 20 | — | — | 128 Direct | +18.52% | Acquired | (price as of 2026-08-21) |
| March 7, 2025 | KOP | D | 3,533 | — | — | 17,216 Direct | -17.03% | Disposed | (price as of 2026-08-21) |
| Dec. 16, 2024 | KOP | A | 9 | — | — | 89 Direct | +11.25% | Acquired | (price as of 2026-08-21) |
| Sept. 16, 2024 | KOP | A | 8 | — | — | 79 Direct | +11.27% | Acquired | (price as of 2026-08-21) |
| June 10, 2024 | KOP | A | 7 | — | — | 71 Direct | +10.94% | Acquired | (price as of 2026-08-21) |
| May 2, 2024 | KOP | A | 2,079 | — | — | 6,405 Direct | +48.06% | Acquired | (price as of 2026-08-21) |
| May 2, 2024 | KOP | M | 20 | — | — | 63 Direct | -24.10% | Disposed | (price as of 2026-08-21) |
| May 2, 2024 | KOP | M | 20 | — | — | 20,749 Direct | +0.10% | Acquired | (price as of 2026-08-21) |
| March 25, 2024 | KOP | A | 20 | — | — | 109 Direct | +22.47% | Acquired | (price as of 2026-08-21) |
| March 25, 2024 | KOP | A | 20 | — | — | 83 Direct | +31.75% | Acquired | (price as of 2026-08-21) |
| March 25, 2024 | KOP | A | 6 | — | — | 63 Direct | +10.53% | Acquired | (price as of 2026-08-21) |
| Sept. 11, 2023 | KOP | A | 7 | — | — | 52 Direct | +15.56% | Acquired | (price as of 2026-08-21) |
| June 12, 2023 | KOP | A | 8 | — | — | 45 Direct | +21.62% | Acquired | (price as of 2026-08-21) |
| May 4, 2023 | KOP | A | 3,513 | — | — | 9,918 Direct | +54.85% | Acquired | (price as of 2026-08-21) |
| May 4, 2023 | KOP | A | 3,513 | — | — | 20,729 Direct | +20.41% | Acquired | (price as of 2026-08-21) |
| April 27, 2023 | KOP | A | 37 | — | — | 37 Direct | — | Acquired | (price as of 2026-08-21) |
| May 5, 2022 | KOP | A | 4,326 | — | — | 4,326 Direct | — | Acquired | (price as of 2026-08-21) |
| May 6, 2021 | KOP | A | 3,078 | — | — | 17,216 Direct | +21.77% | Acquired | (price as of 2026-08-21) |
| May 6, 2020 | KOP | A | 8,434 | — | — | 14,138 Direct | +147.86% | Acquired | (price as of 2026-08-21) |
| May 2, 2019 | KOP | A | 3,936 | — | — | 5,704 Direct | +222.62% | Acquired | (price as of 2026-08-21) |
| Sept. 10, 2018 | KOP | A | 1,768 | — | — | 1,768 Direct | — | Acquired | (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 (30) | — | — | 30 | Acquired |
| May 7, 2026 | KOP | Restricted Stock Units | Common Stock (3,280) | — | — | 3,280 | Acquired |
| March 23, 2026 | KOP | Dividend Equivalent Rights | Common Stock (50) | — | — | 50 | Acquired |
| March 23, 2026 | KOP | Dividend Equivalent Rights | Common Stock (25) | — | — | 25 | Acquired |
| Dec. 16, 2025 | KOP | Dividend Equivalent Rights | Common Stock (28) | — | — | 28 | Acquired |
| Sept. 15, 2025 | KOP | Dividend Equivalent Rights | Common Stock (28) | — | — | 28 | Acquired |
| May 8, 2025 | KOP | Restricted Stock Units | Common Stock (4,778) | — | — | 4,778 | Acquired |
| March 24, 2025 | KOP | Dividend Equivalent Rights | Common Stock (22) | — | — | 22 | Acquired |
| March 24, 2025 | KOP | Dividend Equivalent Rights | Common Stock (17) | — | — | 17 | Acquired |
| March 7, 2025 | KOP | Dividend Equivalent Rights | Common Stock (20) | — | — | 20 | Acquired |
| Dec. 16, 2024 | KOP | Dividend Equivalent Rights | Common Stock (9) | — | — | 9 | Acquired |
| Sept. 16, 2024 | KOP | Dividend Equivalent Rights | Common Stock (8) | — | — | 8 | Acquired |
| June 10, 2024 | KOP | Dividend Equivalent Rights | Common Stock (7) | — | — | 7 | Acquired |
| May 2, 2024 | KOP | Restricted Stock Units | Common Stock (2,079) | — | — | 2,079 | Acquired |
| May 2, 2024 | KOP | Dividend Equivalent Rights | Common Stock (20) | — | — | 20 | Disposed |
| March 25, 2024 | KOP | Dividend Equivalent Rights | Common Stock (20) | — | — | 20 | Acquired |
| March 25, 2024 | KOP | Dividend Equivalent Rights | Common Stock (20) | — | — | 20 | Acquired |
| March 25, 2024 | KOP | Dividend Equivalent Rights | Common Stock (6) | — | — | 6 | Acquired |
| Sept. 11, 2023 | KOP | Dividend Equivalent Rights | Common Stock (7) | — | — | 7 | Acquired |
| June 12, 2023 | KOP | Dividend Equivalent Rights | Common Stock (8) | — | — | 8 | 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 |
| 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 |
|---|---|---|---|---|
| Sept. 12, 2018 | KOP | Common Stock | 0 | Direct |