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ALB ALBEMARLE CORP Insider Trading

Latest: Chair Sold $3.0M of Shares · May 2026

ALBEMARLE CORP (ALB)'s reported leadership includes COO Mark R. Mummert. Its Form 4 history breaks down as 0 buys and 3 sells, filed by 2 distinct insiders through May 2026. Its highest-significance filing in the last 90 days: Chair Masters J Kent sold $3.0M, transaction dated May 2026.

3 filings analyzed · Latest 2026-05-19

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Buys
0
Sells
3
Insiders
2
Direction
Net selling

ALBEMARLE CORP leadership

COO
Mark R. Mummert — Executive Vice President, Chief Operations Officer
General Counsel
Ander C. Krupa — Senior Vice President, General Counsel and Corporate Secretary
Chair
Jr. J. Kent Masters — Chairman and CEO

Historically, stocks have lagged the S&P 500 by a median ~3% over the 90 days after a medium insider sell (n ≈ 4,738, 2024-2026). Past results don't predict the future. How we measure this ↗

May 2026
2026-05-19
medium
Chairman & CEO
16,393 shares
$3,011,766
@ $183.72
Significance 5

Albemarle CEO Masters sells 16,393 shares for $3.0M; stock down 23.5% from 52-week high amid -4.4% revenue decline.

Masters J Kent, Chairman & CEO of Albemarle, executed 3 separate sales totaling 16,393 shares for $3,011,766.41 on 2026-05-15 at blended average price $183.72, reducing holdings by 15.8% to 87,519 shares. The transaction occurs at a material discount to the 52-week high of $221.00 (stock is -23.5% from that peak) and coincides with a 30-day decline of -14.5%. Fundamentally, the company faces headwinds: annual revenue declined -4.4% year-over-year, and the company was unprofitable over its most recent full fiscal year. Regarding timing, his prior 3 sales at this ticker generated modest positive 90-day returns (ranging +0.3% to +1.2%), with 0 of 3 identified as well-timed—a pattern suggesting his recent sells have not historically preceded larger declines at this stock.

March 2026
2026-03-12
high
Chairman & CEO
11,783 shares
$2,012,688
@ $170.81
Significance 6

ALB CEO Masters sells 11,783 shares for $2.0M at $170.81 avg; holds 103.9K post-sale as stock trades 16.3% below 52-week high

Masters J Kent, Chairman & CEO of Albemarle Corp (ALB), executed 3 separate sales totaling 11,783 shares for $2,012,687.98 on 2026-03-10, with a blended average price of $170.81. His post-transaction holding of 103,912 shares represents a 10.2% reduction from his prior 115,695 shares. The timing is notable: the stock trades at $163.89 (current price), down 16.3% from its 52-week high of $195.87, while ALB reported a full-year net loss of $160.7M on revenue of $1.3B and faces an annual revenue decline of 4.4%. The CEO's prior single buy at ALB in May 2023 was followed by positive 90-day returns, whereas this sale occurred as the stock trades substantially below recent highs and the company operates at a loss.

February 2026
2026-02-18
high
Chief Bus..Transformation Off.
8,454 shares
$1,384,004
@ $163.71
Significance 7

CFO Anderson sold 8,454 ALB shares at $163.71 (47.2% of holdings) as stock trades near 52-week highs

Anderson Melissa H., Chief Business & Transformation Officer at Albemarle Corp, sold 8,454 shares on 2026-02-13 at $163.71 per share, reducing her holdings from 17,893 to 9,439 shares—a 47.2% reduction. The sale occurred while ALB traded 30-day up 5.0% and 90-day up 47.1%, near the 52-week high of $194.18. This contrasts sharply with Albemarle's financial condition: the company posted negative net income of $-160,694,000.00 in its most recent full fiscal year, annual revenue declined 4.4%, and the stock trades at an elevated P/E of 31.13. The substantial reduction in a senior executive's stake during strong price momentum, combined with deteriorating profitability, merits investor attention to underlying business sustainability.

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