United States Lime & Minerals (USLM) Form 144 Discloses 12,100-Share Sale

Rhea-AI Filing Summary

United States Lime & Minerals (USLM) Form 144 shows an intended sale of 12,100 common shares through RBC Capital Markets with an aggregate market value of $1,445,943. The filer acquired these shares by option exercise on 05/07/2024 and states payment was completed on that date. The filing reports approximately 28,639,539 shares outstanding, and the approximate date of sale is 09/04/2025 on NASDAQ. The form also discloses a prior sale on 09/03/2025 of 27,425 shares by Timothy Byrne, generating gross proceeds of $3,319,642. The notice includes the standard insider representation that the seller is not aware of undisclosed material adverse information.

Positive

• Transparent compliance with Rule 144 through timely disclosure of planned sale and acquisition details
• Brokered transaction through RBC Capital Markets, indicating use of an established intermediary

Negative

• Insider selling activity noted, including a recent sale of 27,425 shares, which some investors may view negatively

Insights

Securities Analyst

TL;DR: Insider intends to sell a small stake after option exercise; disclosure is routine and likely not material to valuation.

The filing documents a planned sale of 12,100 shares valued at about $1.45 million against roughly 28.6 million shares outstanding, representing about 0.042% of the float. The shares were acquired via option exercise on 05/07/2024 with payment completed that day, which suggests this is a routine post-exercise disposition rather than a liquidity-driven divestiture. The prior sale reported (27,425 shares for $3.32 million) indicates recent insider selling activity; however, both transactions are small relative to total outstanding shares. From a market-impact perspective, these disclosures are transparent and standardized under Rule 144.

Corporate Governance Expert

TL;DR: Disclosure complies with Rule 144; insider certification of no undisclosed material information is included.

The form includes required issuer, acquisition, and broker details and 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.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
COMMON	RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	12100	1445943.00	28639539	09/04/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
COMMON	05/07/2024	OPTION EXERCISE	ISSUER			12100	05/07/2024	N/A

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
TIMOTHY BYRNE C/O RBC CAPITAL MARKETS LLC 250 NICOLLET MALL, SUITE 1700 MINNEAPOLIS MN 55401	UNITED STATES LIME & MINERALS INC	09/03/2025	27425	3319642.00

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does the Form 144 filed for USLM disclose?

It discloses a proposed sale of 12,100 common shares via RBC Capital Markets valued at $1,445,943, acquired by option exercise on 05/07/2024, with an approximate sale date of 09/04/2025.

Who acquired the shares and how were they acquired according to the Form 144?

The shares were acquired by the filer through an option exercise on 05/07/2024 and payment was made on that date.

How many USLM shares are outstanding per the filing?

The filing lists 28,639,539 shares outstanding.

Was there any recent sale by the same account disclosed in the form?

Yes, a sale on 09/03/2025 of 27,425 shares by Timothy Byrne produced gross proceeds of $3,319,642.

On which exchange is the planned sale to occur?

The planned sale is listed to occur on NASDAQ.