Insider · CIK 0001226577
William M Cook
Files at MATV (Mativ Holdings, Inc.), AXTA (Axalta Coating Systems Ltd.). First filing Nov 15, 2024, latest Jun 2, 2025.
In brief
William M Cook files SEC Form 4 as director at MATV (Mativ Holdings, Inc.), and also at AXTA (Axalta Coating Systems Ltd.). Since Nov 15, 2024, William M Cook has reported 2 open-market buys worth $60k and 0 open-market sells worth $0, the latest filed on Jun 2, 2025.
A track record needs three past buys with six months of prices behind them; William M Cook has 1, so none is measured yet.
The newest scored trade: bought $29k of MATV on May 29, 2025, filed Jun 2, 2025, scored 49 (moderate).
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
MATV: Mativ Holdings, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 49Moderate | Mativ Holdings, Inc. | $29k 5,000 shares | +23% | +28% from low-68% from high | |
| 23Weak | MATVbuy Mativ Holdings, Inc. | $31k 2,500 shares | +13% | - |
Transactions
Every row this insider has filed, 31 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Jul 1, 2026 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +1,075 | - | - | 59,098 | Jul 6, 2026 |
| Jul 1, 2026 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +658 | - | - | 59,756 | Jul 6, 2026 |
| Jul 1, 2026 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +968 | - | - | 60,724 | Jul 6, 2026 |
| Jul 1, 2026 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +19,815 | - | - | 80,539 | Jul 6, 2026 |
| Mar 4, 2026 | AXTA Axalta Coating Systems Ltd. | MOption exercise Common Shares | +5,832 | - | - | 43,959 | Mar 5, 2026 |
| Mar 3, 2026 | AXTA Axalta Coating Systems Ltd. | AGrant or award Restricted Stock Unitsderivative | +6,313 | $0.00 | $0 | 6,313 | Mar 5, 2026 |
| Mar 4, 2026 | AXTA Axalta Coating Systems Ltd. | MOption exercise Restricted Stock Unitsderivative | -5,832 | $0.00 | $0 | 0 | Mar 5, 2026 |
| Jan 1, 2026 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +306 | $12.49 | $3,822 | 57,230 | Jan 5, 2026 |
| Jan 1, 2026 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +793 | $11.82 | $9,373 | 58,023 | Jan 5, 2026 |
| Jul 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +2,108 | $6.82 | $14k | 55,214 | Oct 3, 2025 |
| Oct 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +439 | $12.57 | $5,518 | 55,653 | Oct 3, 2025 |
| Oct 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +1,271 | $11.31 | $14k | 56,924 | Oct 3, 2025 |
| Jul 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +18,328 | $6.82 | $125k | 52,491 | Jul 2, 2025 |
| Jul 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stockderivative | +615 | $5.55 | $3,413 | 53,106 | Jul 2, 2025 |
| May 29, 2025 | MATV Mativ Holdings, Inc. | POpen-market purchase Common Stock | +5,000 | $5.84 | $29k | 26,436 | Jun 2, 2025 |
| Apr 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +5,008 | $6.24 | $31k | 31,622 | Apr 3, 2025 |
| Apr 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +2,103 | $6.24 | $13k | 33,725 | Apr 3, 2025 |
| Apr 1, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +438 | $6.07 | $2,659 | 34,163 | Apr 3, 2025 |
| Mar 4, 2025 | AXTA Axalta Coating Systems Ltd. | AGrant or award Restricted Stock Unitsderivative | +5,832 | $0.00 | $0 | 5,832 | Mar 6, 2025 |
| Feb 28, 2025 | AXTA Axalta Coating Systems Ltd. | MOption exercise Common Shares | +6,157 | - | - | 38,127 | Mar 4, 2025 |
| Feb 28, 2025 | AXTA Axalta Coating Systems Ltd. | MOption exercise Restricted Stock Unitsderivative | -6,157 | $0.00 | $0 | 0 | Mar 4, 2025 |
| Jan 3, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +2,866 | $10.90 | $31k | 25,383 | Jan 7, 2025 |
| Jan 3, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +1,060 | $10.90 | $12k | 26,443 | Jan 7, 2025 |
| Jan 3, 2025 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +171 | $13.15 | $2,249 | 26,614 | Jan 7, 2025 |
| Nov 15, 2024 | MATV Mativ Holdings, Inc. | POpen-market purchase Common Stock | +2,500 | $12.45 | $31k | 21,436 | Nov 15, 2024 |
| Feb 28, 2024 | AXTA Axalta Coating Systems Ltd. | MOption exercise Common Shares | +6,711 | - | - | 31,970 | Mar 1, 2024 |
| Feb 28, 2024 | AXTA Axalta Coating Systems Ltd. | MOption exercise Restricted Stock Unitsderivative | -6,711 | $0.00 | $0 | 0 | Mar 1, 2024 |
| Feb 28, 2024 | AXTA Axalta Coating Systems Ltd. | AGrant or award Restricted Stock Unitsderivative | +6,157 | $0.00 | $0 | 6,157 | Mar 1, 2024 |
| Jan 2, 2024 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +1,551 | $15.31 | $24k | 11,927 | Jan 4, 2024 |
| Jan 2, 2024 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +1,387 | $15.31 | $21k | 13,314 | Jan 4, 2024 |
| Jan 2, 2024 | MATV Mativ Holdings, Inc. | AGrant or award Phantom Stock Unitsderivative | +287 | $15.96 | $4,581 | 13,601 | Jan 4, 2024 |
Questions about William M Cook
Answered from the filings on this page, as of the latest one.
Is William M Cook buying or selling?
Not in the last 12 months. William M Cook's latest open-market trade on SEC Form 4 was bought $29k of MATV on May 29, 2025.
How did William M Cook's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and William M Cook has 1.
Where does William M Cook file Form 4?
William M Cook has filed Form 4 at MATV (Mativ Holdings, Inc.); AXTA (Axalta Coating Systems Ltd.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.