InsidersTradesSigma
Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (5 ops.)
Insider track record
Board DirectorDisclosed buys
1
Disclosed sells
5
T+90 hit rate
100%
T+90 mean return
+3.7%
Across 1 buy signal with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the full record of transactions filed by Leopold Diane, Director. Insider active across 4 companies, notably MARKEL CORP. Aggregated, 33 reports have been recorded. Breakdown: 1 buy · 5 sells. Total volume traded: €1.2m. Activity tracked since 10 May 2021. The latest transaction was filed on 21 May 2025 (Attribution). Regulator: SEC (Form 4). The full history is openly available.
Declarations33 total
88 shares0Common StockSEC:0001096343-25-000080:0
79.156 shares@ US$1,389.6650.5% of flowCommon StockSEC:0001096343-24-000087:0
100 shares0Common StockSEC:0001096343-24-000071:0
12,887 shares0Common StockSEC:0001225208-24-003140:0
6,341 shares@ US$46.687.1% of flowCommon StockSEC:0001225208-24-001557:0
200 shares@ US$45.520.2% of flowCommon StockSEC:0001225208-23-010609:0
5,739 shares@ US$44.676.3% of flowCommon StockSEC:0001225208-23-009258:0
91.314 shares@ US$1,204.6349.5% of flowCommon StockSEC:0001096343-23-000150:0
6,250 shares@ US$49.16017.4% of flowCommon StockSEC:0001225208-23-006441:0
122 shares0Common StockSEC:0001096343-23-000113:0
13 shares@ US$1,337.2455.8% of flowCommon StockSEC:0001096343-23-000037:0
Ideal exit: 13 Nov 2023 (T+270)
13,437 shares0Common StockSEC:0001225208-23-001788:0
5,230 shares@ US$63.107.9% of flowCommon StockSEC:0001225208-23-001255:0
6,250 shares@ US$60.419.4% of flowCommon StockSEC:0001225208-22-012169:0
5,739 shares@ US$69.1110.5% of flowCommon StockSEC:0001225208-22-010710:0
6,250 shares@ US$83.88850.0009% mcap24.9% of flowCommon StockSEC:0001225208-22-007703:0
92.212 shares@ US$1,192.9050.0004% mcap40.3% of flowCommon StockSEC:0001096343-22-000104:0
129 shares0Common StockSEC:0001096343-22-000089:0
10,235 shares0Common StockSEC:0001225208-22-002569:0
10,235 shares0Common StockSEC:0001225208-22-002569
5,362 shares@ US$80.030.0007% mcap19.4% of flowCommon StockSEC:0001225208-22-001399:0
5,362 shares@ US$80.030.0007% mcap51.6% of flowCommon StockSEC:0001225208-22-001399
5,739 shares@ US$72.290.0007% mcap18.2% of flowCommon StockSEC:0001225208-21-012906:0
5,739 shares@ US$72.299.3% of flowCommon StockSEC:0001225208-21-012906
85.587 shares@ US$1,109.9929.9% of flowCommon StockSEC:0001096343-21-000110
25 of 33 declarations
About Leopold Diane
Diane Leopold is a Board Member and Executive Vice President and Chief Operating Officer at Markel Corp and Dominion Energy, Inc. She is responsible for overseeing operations and growth strategy for the companies. Her expertise in operational management is an asset to the boards.
