United States Lime holder buys 20K shares at $110

A more than 10% beneficial owner of USLM reported a private purchase of 20,000 shares at $110, increasing its indirect holdings to over 17.6 million shares.

Rhea-AI Filing Summary

UNITED STATES LIME & MINERALS INC (USLM) had a significant shareholder-related transaction reported by Candou Holdings Ltd., a more than 10% beneficial owner. On September 9, 2026, an affiliated entity purchased 20,000 shares of USLM common stock in a private transaction at $110 per share, held indirectly through Candou Industries Ltd. in trust for Inberdon Enterprises Ltd. After this purchase, entities associated with Candou Holdings Ltd. beneficially owned 17,673,780 shares, reflecting USLM’s prior 5-for-1 stock split effective July 12, 2024. No Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Net Buyer: 20,000 shares

Net Buy 1 txn

Insider Candou Holdings Ltd.

Role 10% Owner

Bought 20,000 shs ($2.20M)

Type	Security	Shares	Price	Value
Purchase	USLM Common Stock F1, F2, F3	20,000	$110.00	$2.20M

Holdings After Transaction: USLM Common Stock — 17,673,780 shares (Indirect, See Footnote)

Footnotes (3)

1. F1. The shares were acquired in a private transaction.
2. F2. The number of shares reported as beneficially owned herein reflects the 5-for-1 stock split that was effected by the Issuer on July 12, 2024.
3. F3. Of the shares of the Issuer reported as beneficially owned herein, 20,000 shares are held by Candou Industries Ltd. ("Candou Industries") in trust for the benefit of Inberdon Enterprises Ltd. ("Inberdon"), and the balance of the shares are held of record by Inberdon. Mr. George Doumet is the indirect beneficial owner of all such shares through his ownership of Candou Holdings Ltd., which owns 100% of the voting shares of Candou Industries, which in turn wholly owns Inberdon.

Key Figures

Shares purchased: 20,000 shares Purchase price per share: $110.00 per share Beneficial ownership after transaction: 17,673,780 shares +2 more

5 metrics

Shares purchased 20,000 shares USLM common stock acquired on September 9, 2026 in a private transaction

Purchase price per share $110.00 per share Price paid for the 20,000 USLM shares on September 9, 2026

Beneficial ownership after transaction 17,673,780 shares USLM shares beneficially owned by entities associated with Candou Holdings Ltd. after the purchase

Stock split ratio 5-for-1 USLM stock split effected on July 12, 2024, reflected in the reported holdings

Stock split effective date July 12, 2024 Date USLM effected its 5-for-1 stock split referenced in the beneficial ownership footnote

Key Terms

beneficially owned, indirect beneficial owner, stock split, in trust for

4 terms

beneficially owned financial

"The number of shares reported as beneficially owned herein reflects the 5-for-1..."

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

indirect beneficial owner financial

"Mr. George Doumet is the indirect beneficial owner of all such shares..."

stock split financial

"reflects the 5-for-1 stock split that was effected by the Issuer..."

A stock split increases the number of a company's shares by dividing each existing share into multiple new shares while reducing the price per share by the same proportion, so an investor's total value and ownership percentage stay the same. It matters because lower per-share prices can make trading easier and attract more buyers, similar to breaking a large chocolate bar into smaller pieces to make it easier to share, which can boost liquidity and market interest.

in trust for financial

"20,000 shares are held by Candou Industries Ltd. in trust for the benefit..."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did USLM disclose in this Form 4?

USLM disclosed that Candou Holdings Ltd., a more than 10% beneficial owner, reported a purchase of 20,000 shares of USLM common stock in a private transaction on September 9, 2026.

At what price were the 20,000 USLM shares purchased?

The affiliated entity purchased 20,000 USLM shares at a price of $110 per share in a private transaction on September 9, 2026.

How many USLM shares does Candou Holdings Ltd. report beneficially owning after this transaction?

After the transaction, entities associated with Candou Holdings Ltd. report beneficial ownership of 17,673,780 shares of USLM common stock, as adjusted for the company’s 5-for-1 stock split effective July 12, 2024.

How are the newly purchased USLM shares held?

Of the shares reported as beneficially owned, 20,000 shares are held by Candou Industries Ltd. in trust for Inberdon Enterprises Ltd., and the remaining shares are held of record by Inberdon.

Who is the ultimate indirect beneficial owner of these USLM shares?

Mr. George Doumet is described as the indirect beneficial owner of all such USLM shares through his ownership of Candou Holdings Ltd., which owns 100% of Candou Industries Ltd., which in turn wholly owns Inberdon Enterprises Ltd.

Was the USLM insider purchase made under a Rule 10b5-1 trading plan?

No. The filing indicates that no Rule 10b5-1 trading plan is reported in connection with this transaction.

How does the prior USLM stock split affect the reported holdings?

The filing states that the 17,673,780 shares reported as beneficially owned reflect the effect of USLM’s 5-for-1 stock split that was effected on July 12, 2024.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/11/2026 - 04:10 PM Accepted by SEC EDGAR 09/11/2026 - 04:10 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Candou Holdings Ltd.

(Last) (First) (Middle)

1202-570 GRANVILLE STREET

(Street)

VANCOUVER V6C 3P1

(City) (State) (Zip)

BRITISH COLUMBIA, CANADA

(Country)

2. Issuer Name and Ticker or Trading Symbol
UNITED STATES LIME & MINERALS INC [ USLM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
USLM Common Stock	09/09/2026		P(1)		20,000	A	$110	17,673,780(2)	I	See Footnote(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The shares were acquired in a private transaction.

2. The number of shares reported as beneficially owned herein reflects the 5-for-1 stock split that was effected by the Issuer on July 12, 2024.

3. Of the shares of the Issuer reported as beneficially owned herein, 20,000 shares are held by Candou Industries Ltd. ("Candou Industries") in trust for the benefit of Inberdon Enterprises Ltd. ("Inberdon"), and the balance of the shares are held of record by Inberdon. Mr. George Doumet is the indirect beneficial owner of all such shares through his ownership of Candou Holdings Ltd., which owns 100% of the voting shares of Candou Industries, which in turn wholly owns Inberdon.

	/s/ George Doumet, Owner of Candou Holdings Ltd.	09/11/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)