US Lime & Minerals CEO Sells 32,319 Shares in Late August and Early September.

United States Lime & Minerals Inc. (USLM) has announced that Director, President, and CEO Timothy W. Byrne has made a series of share sales. On September 3, 2025, Byrne sold 26,034 shares at $120.88 per share and 1,391 shares at $124.18 per share. The following day, September 4, 2025, he sold 11,504 shares at $119.43 per share and 596 shares at $120.76 per share. On September 5, 2025, Byrne sold 500 shares at $120.99 per share.

United States Lime & Minerals Inc. (USLM) has announced that Director, President, and CEO Timothy W. Byrne has made a series of share sales. On September 3, 2025, Byrne sold 26,034 shares at $120.88 per share and 1,391 shares at $124.18 per share. The following day, September 4, 2025, he sold 11,504 shares at $119.43 per share and 596 shares at $120.76 per share. On September 5, 2025, Byrne sold 500 shares at $120.99 per share.

The total number of shares sold by Byrne over these transactions amounts to 49,925 shares, with an aggregate market value of approximately $6,296,076. This sale represents a significant portion of Byrne's holdings, given the company's total outstanding shares of approximately 28.6 million.

Byrne's share sales come on the heels of a recent Form 144 filing by USLM, which disclosed a planned sale of 12,100 shares through RBC Capital Markets, with an aggregate market value of $1,445,943. The shares were acquired via option exercise on May 7, 2024, and the payment was completed on that date. The filing also reported a prior sale on September 3, 2025, of 27,425 shares by Timothy Byrne, generating gross proceeds of $3,319,642.

The company's latest share sales have raised questions about insider selling activity and its potential implications for the company's valuation. However, the sales are routine and in line with the company's compliance with Rule 144, which requires insiders to disclose planned sales of securities.

From a market-impact perspective, the disclosures are transparent and standardized under Rule 144. The corporate governance expert's assessment is neutral, noting that the filing includes required issuer, acquisition, and broker details, as well as the seller's representation about material information. The acquisition was an option exercise, and sale processing through a registered broker (RBC Capital Markets) follows accepted procedures.

The filing itself raises governance questions only if selling patterns escalate; based on provided figures, this single planned sale and the recent sale are modest and properly documented. Investors should monitor the company's future filings and insider trading activities to gauge the potential impact on the company's valuation and stock price.

References:

[1] https://www.stocktitan.net/sec-filings/USLM/144-united-states-lime-minerals-sec-filing-4762241f664e.html