Comparable stake leader
Scott D. Beamer
SEC ownership of CMC Materials, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001102934.
Disclosed value leader
Scott D. Beamer
Comparable rows
0/1
Latest evidence
30 Jun 2021
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Scott D. Beamer
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
30 Jun 2021
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001102934
- Issuer location
- Aurora, IL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of CMC Materials, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Scott D. Beamer
Disclosed value leader
Scott D. Beamer
Comparable rows
0/1
Latest evidence
30 Jun 2021
3/4/5
Highest disclosed value: $3,547,648
1 rows are not safely comparable across share classes.
Quick read
Scott D. Beamer has the largest disclosed position value at $3.55M.
0 of 1 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Scott D. Beamer's linked filing trail.
Disclosed position value
Top 1
Scott D. Beamer
$3.55M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-1 of 1 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Scott D. Beamer |
3/4/5
Vice President and CFO
|
—
class O/S missing
|
$3,547,648
20,050 shares
|
— | 30 Jun 2021 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 17 Jul 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 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 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-15 of 15 reporting-owner rows connected to CMC Materials, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
15
Largest Forms 3/4/5 holder
Scott D. Beamer
Net 12M change
$0
Latest report
06 Jul 2022
| 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 |
Recent insider transactions for CMC Materials, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| No insider transactions were found in the last 12 months for this issuer. | ||||||||||
* marks a reported price that did not pass the local price check.