Who
Diane Leopold
Director
Company insider
Files Form 4 as: Director, nVent Electric; Director, Markel Group; Director, CMS Energy; EVP, COO & Pres. Cont. Energy, Dominion Energy; EVP,Pres&CEO GasInfrastructure, Dominion Energy Midstream Partners, LP.
In numbers
- Trades disclosed
- 111
- Buys
- 5
- Sells
- 12
- Bought
- $1.4M
- Sold
- $3.7M
- Companies
- 5
- Companies where not an officer
- 3
- First trade
- 1 Feb 2014
- Last trade
- 17 Jul 2026
- Last filed
- 20 Jul 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 | |
|---|---|---|---|---|
| 17 Jul 2026filed 20 Jul 2026 | NVT nVent ElectricMachinery | SEC FORM 4 Code F | $34K222 at $154.92 | filing |
| 17 Jul 2026filed 20 Jul 2026 | NVT nVent ElectricMachinery | SEC FORM 4 Code F | $34K222 at $154.92 | filing |
| 15 Jun 2026filed 17 Jun 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code J | $110K65.922 at $1,668.65 | filing |
| 15 Jun 2026filed 17 Jun 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code J | $110K65.92 at $1,668.65 | filing |
| 20 May 2026filed 22 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —89 at $0.00 | filing |
| 20 May 2026filed 22 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Code A | —89 at $0.00 | filing |
| 15 May 2026filed 19 May 2026 | NVT nVent ElectricMachinery | SEC FORM 4 Code A | —976 at $0.00 | filing |
| 15 May 2026filed 19 May 2026 | NVT nVent ElectricMachinery | SEC FORM 4 Code A | —976 at $0.00 | filing |
| 8 May 2026filed 11 May 2026 | CMS CMS EnergyElectric Utilities & IPPs | SEC FORM 4 Code A | —2,411 at $0.00 | filing |
| 8 May 2026filed 11 May 2026 | CMS CMS EnergyElectric Utilities & IPPs | SEC FORM 4 Code A | —2,411 at $0.00 | filing |
| 7 May 2026filed 8 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Bought | $89K50 at $1,789.19 | filing |
| 7 May 2026filed 8 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Bought | $89K50 at $1,789.19 | filing |
| 6 May 2026filed 8 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Bought | $179K100 at $1,792.61 | filing |
| 6 May 2026filed 8 May 2026 | MKL Markel GroupInsurance | SEC FORM 4 Bought | $179K100 at $1,792.61 | filing |
| 25 Feb 2026filed 27 Feb 2026 | CMS CMS EnergyElectric Utilities & IPPs | SEC FORM 4 Bought | $153K2,000 at $76.70 | filing |
| 25 Feb 2026filed 27 Feb 2026 | CMS CMS EnergyElectric Utilities & IPPs | SEC FORM 4 Bought | $153K2,000 at $76.70 | filing |
| 20 Feb 2026filed 23 Feb 2026 | CMS CMS EnergyElectric Utilities & IPPs | SEC FORM 4 Code A | —769 at $0.00 | filing |
| 20 Feb 2026filed 23 Feb 2026 | CMS CMS EnergyElectric Utilities & IPPs | SEC FORM 4 Code A | —769 at $0.00 | filing |
| 13 Aug 2025filed 16 Jan 2026 | NVT nVent ElectricMachinery | SEC FORM 4 Bought | $171K1,900 at $89.84 | filing |
| 13 Aug 2025filed 16 Jan 2026 | NVT nVent ElectricMachinery | SEC FORM 4 Bought | $9,007100 at $90.07 | filing |
News
CMS Energy Corporation (NYSE:CMS) Stock to Pay Quarterly Dividend of $0.57CMS · themarketsdaily.com · 20 Oct 2026Markel strengthens Marine & Energy Liability team in London with key appointmentsMKL · brantfordexpositor.ca · 15 Oct 2026Markel International launches new chemical, oil & gas related energy property offering for small to midsize US-domiciled businessesMKL · prnewswire.com · 8 Oct 2026
0 headlines in the last 90 days name Diane Leopold; 3 articles from the last 14 days about the 2 companies they traded most, at most three about any one of them.