COOK WILLIAM M
SEC insider (Form 3/4/5 filer). CIK 0001226577. Director at Mativ Holdings, Inc. (MATV) and 1 other issuer. 26 reported Form 4/5 transactions since Sep 2024; latest on Jul 1, 2026. Located in ALPHARETTA, GA.
Companies COOK WILLIAM M has filed insider reports for
- Mativ Holdings, Inc. (MATV): Director
- Axalta Coating Systems Ltd. (AXTA): Director
COOK WILLIAM M
CIK: 0001226577
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (26 total)
- Jul 1, 2026MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
658 shares- - Jul 1, 2026MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
1.1K shares- - Jul 1, 2026MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
968 shares- - Jul 1, 2026MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
19.8K shares- - Mar 4, 2026AXTA
Axalta Coating Systems Ltd.
ExerciseDirect5.8K shares- - Mar 3, 2026AXTA
Axalta Coating Systems Ltd.
AwardDirectRestricted Stock Units
6.3K shares- - Jan 1, 2026MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
306 shares at avg. $12.49- - Jan 1, 2026MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
793 shares at avg. $11.82- - Oct 1, 2025MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
439 shares at avg. $12.57- - Oct 1, 2025MATV
Mativ Holdings, Inc.
AwardDirectPhantom Stock
1.3K shares at avg. $11.31-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jul 1, 2026 |  MATV Mativ Holdings, Inc. | Award Phantom Stock | 658 | - | - | Direct |
| Jul 1, 2026 | MATV Mativ Holdings, Inc. | Award Phantom Stock | 1,075 | - | - | Direct |
| Jul 1, 2026 | MATV Mativ Holdings, Inc. | Award Phantom Stock | 968 | - | - | Direct |
| Jul 1, 2026 | MATV Mativ Holdings, Inc. | Award Phantom Stock | 19,815 | - | - | Direct |
| Mar 4, 2026 |  AXTA Axalta Coating Systems Ltd. | Exercise | 5,832 | - | $0 | Direct |
| Mar 3, 2026 | AXTA Axalta Coating Systems Ltd. | Award Restricted Stock Units | 6,313 | - | - | Direct |
| Jan 1, 2026 | MATV Mativ Holdings, Inc. | Award Phantom Stock | 306 | $12.49 | - | Direct |
| Jan 1, 2026 | MATV Mativ Holdings, Inc. | Award Phantom Stock | 793 | $11.82 | - | Direct |
| Oct 1, 2025 | MATV Mativ Holdings, Inc. | Award Phantom Stock | 439 | $12.57 | - | Direct |
| Oct 1, 2025 | MATV Mativ Holdings, Inc. | Award Phantom Stock | 1,271 | $11.31 | - | Direct |
1-10 of 26 transactions