M
$ Value
—
Shares
1,128
Price
—
Filed
Aug 11
Insider
Name
MCCOLLUM MARK A
Title
—
CIK
0001215888
Roles
Director
Transaction Details
Transaction Date
2025-08-09
Code
M
Table
Non-Derivative
Ownership
Direct
Equity Swap
No
Shares After
9,656
Footnotes
Restricted stock units convert into the Issuer's common stock on a one-for-one basis. | All of the restricted stock units will vest on August 8, 2026. | On August 9, 2024 the reporting person was granted 1,128 restricted stock units vesting on the first anniversary of the grant date.
Filing Info
MCCOLLUM MARK A's History
| Date | Ticker | Type | Value |
|---|---|---|---|
| 2025-08-09 | WLK | M | — |
| 2025-08-09 | WLK | M | $0 |
| 2025-08-08 | WLK | A | $0 |
| 2025-05-14 | SDRL | A | $0 |
Other Insiders at WLK (90d)
| Insider | Bought | Sold | Last |
|---|---|---|---|
|
Bender Mark Steven
EVP & CFO
|
— | $1.8M | 2026-03-27 |
|
Buesinger Robert F.
EVP, PEM Segment Head
|
— | $461K | 2026-03-27 |
|
Powers Brian John
SVP, PEM Segment Head
|
— | — | 2026-04-02 |