Quick Takeaways
- CMC Materials, Inc. has 15 insiders with reported activity on this page.
- No net insider buy/sell flow is currently reported for the last year.
- Recent transaction rows are not currently available.
- Info
- Insider Trading
Insider Transactions Reported by 15 Insiders of CMC Materials, Inc.
- Location
- Aurora, IL
What Changed
- No meaningful buy/sell imbalance is currently visible in the one-year window.
- Activity will update as new Forms 3/4/5 are filed.
Why This Matters
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Source Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsInsider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 23 Apr 2025.
Buys
$0
Shares: 0
Insiders: 0
Sells
$0
Shares: 0
Insiders: 0
Net
$0
Shares: 0
Insiders: 0
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
CMC Materials, Inc. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Scott D. Beamer | Vice President and CFO | $3,547,648 | Mixed | 30 Jun 2021 | ||
| Geoffrey Wild | Director | Mixed | 06 Jul 2022 | |||
| Daniel D. Woodland | VP & President of EC | Mixed | 06 Jul 2022 | |||
| Anne K. Roby | Director | Mixed | 06 Jul 2022 | |||
| Jeanette A. Press | Interim CFO & Corp Controller | Mixed | 06 Jul 2022 | |||
| Susan M. Whitney | Director | Mixed | 06 Jul 2022 | |||
| Jeffrey Michael Dysard | VP and Pres. of Perf. Material | Mixed | 06 Jul 2022 | |||
| William P. Noglows | Director | Mixed | 06 Jul 2022 | |||
| Colleen Elizabeth Mumford | VP, Marketing & Communications | Mixed | 06 Jul 2022 | |||
| Bernstein H. Carol Eckstein | VP, Sec & General Counsel | Mixed | 06 Jul 2022 | |||
| Paul J. Reilly | Director | Mixed | 06 Jul 2022 | |||
| David H. Li | President and CEO | Mixed | 06 Jul 2022 | |||
| Eleanor Kate Thorp | VP, Human Resources | Mixed | 06 Jul 2022 | |||
| Barbara A. Klein | Director | Mixed | 06 Jul 2022 | |||
| Richard Hill | Director | Mixed | 06 Jul 2022 |
Top shareholders of CMC Materials, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| Scott D. Beamer |
3/4/5
|
Vice President and CFO |
—
class O/S missing
|
20,050
|
$3,547,648 | — | 30 Jun 2021 |
Recent Insider Transactions by Companies or Individuals for CMC Materials, Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* An asterisk sign (*) next to the price indicates that the price is likely invalid.