Who
Douglas T. Dietrich
Director
Company insider
Files Form 4 as: Director, Kennametal; Chairman and CEO, Minerals Technologies.
In numbers
- Trades disclosed
- 285
- Buys
- 6
- Sells
- 8
- Bought
- $224K
- Sold
- $11.0M
- Companies
- 2
- Companies where not an officer
- 1
- First trade
- 27 Feb 2008
- Last trade
- 25 Aug 2026
- Last filed
- 26 Aug 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 25 Aug 2026filed 26 Aug 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | $29K982.234 at $29.27 | filing |
| 25 Aug 2026filed 26 Aug 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | $29K982.23 at $29.27 | filing |
| 15 Aug 2026filed 18 Aug 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | —4,965 at $0.00 | filing |
| 15 Aug 2026filed 18 Aug 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | —4,965 at $0.00 | filing |
| 26 May 2026filed 28 May 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | $26K697.076 at $36.94 | filing |
| 26 May 2026filed 28 May 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | $26K697.08 at $36.94 | filing |
| 14 May 2026filed 18 May 2026 | MTX Minerals TechnologiesChemicals | SEC FORM 4 Code M | $1.7M21,568 at $78.03 | filing |
| 14 May 2026filed 18 May 2026 | MTX Minerals TechnologiesChemicals | SEC FORM 4 Sold | $1.8M21,568 at $81.53 | filing |
| 14 May 2026filed 18 May 2026 | MTX Minerals Technologiesoption or derivative · Chemicals | SEC FORM 4 Code M | —21,568 at $0.00 | filing |
| 14 May 2026filed 18 May 2026 | MTX Minerals Technologiesoption or derivative · Chemicals | SEC FORM 4 Code M | —21,568 at $0.00 | filing |
| 14 May 2026filed 18 May 2026 | MTX Minerals TechnologiesChemicals | SEC FORM 4 Code M | $1.7M21,568 at $78.03 | filing |
| 14 May 2026filed 18 May 2026 | MTX Minerals TechnologiesChemicals | SEC FORM 4 Sold | $1.8M21,568 at $81.53 | filing |
| 24 Feb 2026filed 26 Feb 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | $26K642.145 at $40.10 | filing |
| 24 Feb 2026filed 26 Feb 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code A | $26K642.15 at $40.10 | filing |
| 30 Jan 2026filed 3 Feb 2026 | KMT KennametalMachinery | SEC FORM 4 Code M | $29K841 at $34.39 | filing |
| 30 Jan 2026filed 3 Feb 2026 | KMT KennametalMachinery | SEC FORM 4 Code F | $86025 at $34.39 | filing |
| 30 Jan 2026filed 3 Feb 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code M | —841 at $0.00 | filing |
| 30 Jan 2026filed 3 Feb 2026 | KMT Kennametaloption or derivative · Machinery | SEC FORM 4 Code M | —841 at $0.00 | filing |
| 30 Jan 2026filed 3 Feb 2026 | KMT KennametalMachinery | SEC FORM 4 Code M | $29K841 at $34.39 | filing |
| 30 Jan 2026filed 3 Feb 2026 | KMT KennametalMachinery | SEC FORM 4 Code F | $86025 at $34.39 | filing |
News
Minerals Technologies (NYSE:MTX) & Intrepid Potash (NYSE:IPI) Head to Head ContrastMTX · themarketsdaily.com · 18 Oct 2026
0 headlines in the last 90 days name Douglas T. Dietrich; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.