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MKL MARKEL GROUP INC. Insider Trading

Latest: Director Bought $269K of Shares · May 2026

Multiple insiders have been active at MARKEL GROUP INC. (MKL): 6 distinct insiders account for 6 buy filings and 6 sell filings as of May 2026. Its highest-significance filing in the last 90 days: Director Leopold Diane bought $269K, transaction dated May 2026.

12 filings analyzed · Latest 2026-05-08

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Buys
6
Sells
6
Insiders
6
Direction
Neutral

MARKEL GROUP INC. leadership

CEO
Thomas S. Gayner — PRINCIPAL EXECUTIVE OFFICER
CFO
Brian J. Costanzo — PRINCIPAL FINANCIAL OFFICER
Chair
Steven A. Markel — Chairman of the Board

Historically, high-priority insider buys have outperformed the S&P 500 by a median ~2% over the 30 days after the trade — the edge is concentrated in that first month (n ≈ 5,579, 2024-2026). Past results don't predict the future. How we measure this ↗

May 2026
2026-05-08
high
150 shares
$268,720
@ $1,791.47
Significance 6

Director Diane Leopold purchases 150 shares of MKL across two days as stock trades well below recent highs; repeat buyer with positive historical returns.

Director Diane Leopold made two purchases totaling 150 shares at Markel Group over consecutive trading days in early May, deploying roughly a quarter-million dollars at a time when the stock is trading notably below its recent highs after declining over the past quarter. Leopold has a demonstrated pattern of open-market purchases, with all three of her prior open-market buys preceding positive stock performance on average, suggesting disciplined timing on her part. The company itself remains profitable with a reasonable valuation multiple, though the most recent quarter showed a net loss amid a decline in annual revenues, creating a backdrop where a director's willingness to increase her stake is noteworthy. This purchase adds to her existing holdings in a meaningful way and represents continued conviction through a period of pullback—a posture that stands out against the backdrop of the company's recent financial headwinds.

2026-05-05
high
57 shares
$102,345
@ $1,795.53
Significance 6

Director Puckett purchases $102K of MKL shares as stock retreats from highs amid recent earnings pressure.

Puckett A. Lynne, a board director at Markel Group, deployed over $100,000 to purchase shares on an open-market basis—a meaningful vote of confidence at a time when the stock has pulled back significantly from its peak and is currently trading near its 52-week low. The timing is notable: this director is buying into weakness rather than riding a rally, which typically signals conviction that the stock is undervalued at current levels. However, the context is more complex—the company recently posted a quarterly loss despite underlying business fundamentals remaining solid, and the broader equity positioning suggests near-term uncertainty. The purchase of approximately 4% of the director's holdings shows commitment but not an all-in conviction move, indicating measured confidence rather than emergency buying or a contrarian bottom-fishing signal.

December 2025
2025-12-15 10b5-1 Plan
medium
1,330 shares
$2,818,430
@ $2,119.12
Significance 5

Director Steven A. Markel sells 1,330 shares across 16 transactions on 2025-12-11 for $2.8M at blended avg $2,119.12

On 2025-12-11, director Steven A. Markel executed 16 separate open-market sales totaling 1,330 shares for $2,818,429.67, reducing his holdings by 2.2% from 61,698 to 60,368 shares. The transactions were spread across prices ranging from $2,100.00 to $2,128.00, with a blended average of $2,119.12, occurring when the stock was trading near its 52-week high (currently $2,160.22, -0.4% from the $2,168.12 peak). Against his cross-ticker track record of 20 prior sales showing a 90-day well-timed rate of 65.00%, his prior 5 sales at MKL were less predictive: only 2 of 5 were well-timed at the 90-day mark. The company's fundamentals remain solid with annual revenue growth of +5.2%, a P/E of 13.10, and recent quarterly net income of $751.3M on $3.9B revenue. The sale occurred at valuations near the year's peak, but the modest percentage reduction and continued substantial 60.4K share holdings leave the directional signal ambiguous.

May 2025
2025-05-23
high
25 shares
$46,283
@ $1,851.32
Significance 7

Director Lawrence Cunningham bought 25 MKL shares for $46,283 (blended avg $1,851.32); 4 of 5 prior MKL buys showed positive 90d returns

Cunningham Lawrence A, a Director, executed 2 separate purchases totaling 25 shares for $46,283.00 at prices of $1,849.00 and $1,854.80 on 2025-05-22, expanding his holdings by 3.0% to 856 shares. His prior open-market purchase pattern at MKL is notably strong: 4 of 5 prior trades at this ticker demonstrated positive 90-day returns, with two consecutive February 2024 buys each returning over 11% within 90 days. His cross-ticker track record shows an average 90-day win rate of 66.67% with a 4.3% average 90-day return. At current price of $1,860.45, the stock has appreciated 0.5% from his blended purchase price and trades at a valuation of 12.80 P/E with $3.4B in quarterly revenue and positive annual growth of 5.2%.

2025-05-20
low
CAO and Controller
400 shares
$764,660
@ $1,911.65
Significance 3

CAO Grandis Meade P. sold 400 MKL shares ($764.7K) at $1,911.65; retains 3,919 shares post-sale.

Grandis Meade P., serving as CAO and Controller at Markel Group Inc., executed a discretionary open-market sale of 400 shares on 2025-05-19 for $764,660.00, reducing his shareholding by 9.3% from 4,319 to 3,919 shares. The sale occurred at $1,911.65, modestly above the current price of $1,898.76 but well below the 52-week high of $2,059.83. This represents his second open-market sale of MKL within a 14-day window (prior sale 2025-05-05), suggesting a pattern of liquidation rather than an isolated transaction. The company's fundamentals remain solid with $3.4B in quarterly revenue, 13.06 P/E ratio, and +5.2% annual revenue growth, providing no obvious operational distress signal. The timing is observable but not exceptional: the stock has risen 7.4% over the past 30 days and remains modestly elevated from its 52-week range floor, offering a reasonable exit point.

2025-05-07
low
CAO and Controller
400 shares
$750,976
@ $1,877.44
Significance 4

CAO Grandis Meade P. sold 400 shares of MKL at $1,877.44 totaling $750,976.00 on 2025-05-05.

Grandis Meade P., Chief Accounting Officer and Controller of Markel Group Inc., executed a sale of 400 shares valued at $750,976.00, reducing holdings from 4,719 to 4,319 shares (an 8.5% reduction in stake). The transaction occurred at $1,877.44 per share, 0.01% below the current price of $1877.45 and near the midpoint of the 52-week range of $1494.55–$2059.83. With the stock up 11.8% over the past 30 days and down 8.8% from its 52-week high, the sale represents a routine portfolio adjustment by an officer whose remaining holdings remain substantial at 4,319 shares in a company with $23.8B market cap and a historically solid P/E of 12.92.

February 2025
2025-02-26 10b5-1 Plan
medium
1,054 shares
$1,973,939
@ $1,872.81
Significance 4

Director Steven Markel sold 1,054 shares at MKL over two days (Feb 25-26) for $1,973,938.71; post-trade holdings 62.7K shares (-1.7%)

Steven Markel, a Director, executed 26 separate sales totaling 1,054 shares (1.1K shares) for $1,973,938.71 across February 25-26, with a blended average price of $1,872.81. His post-transaction holdings of 62.7K shares represent a net reduction of 1.7% from prior holdings of 63.7K shares. The stock currently trades at $1,887.14, above the average transaction prices, and has shown recent momentum with a 30-day change of +3.0% and 90-day change of +5.7%, placing the sale at -8.4% from the 52-week high of $2,059.83. Notably, Markel executed four prior sales on February 24 at this same ticker, suggesting a deliberate multi-day liquidation pattern, though prior trade outcomes at MKL remain unmeasurable.

2025-02-26 10b5-1 Plan
medium
1,146 shares
$2,129,825
@ $1,858.49
Significance 4

Director Steven Markel sells 1,146 shares across 12 transactions on 2025-02-24 for $2,129,825.14; retains 63,722 shares post-sale

Steven Markel, a director of Markel Group, executed 12 separate sales totaling 1,146 shares (1.1K shares) for $2,129,825.14 ($2.1M) on 2025-02-24, with a blended average price of $1,858.49. The sale reduced his holdings by approximately 1.8%, from 64,868 shares to 63,722 shares post-transaction. The stock currently trades at $1,887.14, and Markel's cross-ticker track record shows 20 prior sells; however, his prior sales at MKL lack measurable 90-day outcomes, preventing any assessment of selling pattern effectiveness at this specific ticker. The company maintains a P/E of 6.48 with $4.6B in latest quarterly revenue and $905.0M in net income, reflecting stable fundamentals. Without additional FLAGS indicating a scheduled trading plan, this appears to be a discretionary reduction of a still-substantial director position.

2025-02-25 10b5-1 Plan
low
800 shares
$1,485,440
@ $1,856.80
Significance 4

Director MARKEL STEVEN A sold 800 shares ($1.5M) at Markel Group on Feb 21; holds 64.9K shares post-transaction

Director Steven A. Markel executed 13 separate sales totaling 800 shares for $1,485,440.06 on 2025-02-21, with prices ranging from $1,850.27 to $1,863.76 per share, representing a blended average of $1,856.80. The transaction reduced his holdings from 65.7K shares to 64.9K shares, a -1.2% reduction of pre-transaction holdings. The stock currently trades at $1,887.76, approximately 1.7% above the weighted average transaction price, suggesting the sale occurred near market levels. Markel Group's strong fundamentals—$4.6B quarterly revenue, $905.0M net income, and a P/E of 6.48—provide context for the company's valuation. The modest share reduction and relatively tight price clustering across the 13 transactions are consistent with routine portfolio management rather than a concentrated directional statement.

2025-02-07
high
Chief Executive Officer
100 shares
$200,801
@ $2,008.01
Significance 7

CEO Gayner Sinnickson bought 100 MKL shares at $2,008.01; 4 of 5 prior MKL buys delivered positive 90-day returns.

Gayner Sinnickson, CEO of Markel Group, acquired 100 shares at $2,008.01, bringing holdings to 48,944 shares. His prior trades at MKL show a 80% well-timed buy rate at the 90-day mark: 4 of 5 prior buys were followed by positive 90-day returns, including the most recent purchase on 2024-11-01 which gained 15.0% in 30 days and 18.2% in 90 days. Markel's fundamentals remain strong with $4.6B quarterly revenue and 35.4% annual revenue growth. The stock has climbed 22.8% over 90 days and trades at a low P/E of 8.78, suggesting the current price of $2,026.37 (up 18.7% in 30 days) remains modest relative to earnings power. This purchase aligns with a consistent pattern of opportunistic accumulation by the CEO.

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