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AI Earnings Predictions for United States Lime & Minerals Inc. (USLM)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

SELL

1-Day Prediction

-4.04%

$118.61

0% positive prob.

5-Day Prediction

-8.17%

$113.51

0% positive prob.

20-Day Prediction

-3.17%

$119.69

0% positive prob.

Price at prediction: $123.61 Confidence: 100.0% Model AUC: 1.0000 Quarter: Q4 2025

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2025
Q4

Q4 2025 Earnings

8-K SELL

Feb 2, 2026 · 100% conf.

AI Prediction SELL

1D

-4.04%

$118.61

Act: -4.43%

5D

-8.17%

$113.51

Act: -12.81%

20D

-3.17%

$119.69

Act: +0.78%

Price: $123.61 Prob +5D: 0% AUC: 1.000
0001104659-26-009218

UNITED STATES LIME & MINERALS, INC._February 2, 2026 TX0000082020falseTX00000820202026-02-022026-02-02 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): February 2, 2026 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On February 2, 2026, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and full year ended December 31, 2025. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated February 2, 2026.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: February 2, 2026

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2025
Q3

Q3 2025 Earnings

8-K

Oct 29, 2025

0001104659-25-103779

UNITED STATES LIME & MINERALS, INC._October 29, 2025 TX0000082020falseTX00000820202025-10-292025-10-29 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): October 29, 2025 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On October 29, 2025, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and nine-months ended September 30, 2025. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated September 30, 2025.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: October 29, 2025

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2025
Q2

Q2 2025 Earnings

8-K

Jul 30, 2025

0001558370-25-009807

TX0000082020falseTX00000820202025-07-302025-07-30 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): July 30, 2025 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On July 30, 2025, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and six-months ended June 30, 2025. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated July 30, 2025.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: July 30, 2025

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2025
Q1

Q1 2025 Earnings

8-K

Apr 30, 2025

0001558370-25-006021

TX0000082020falseTX00000820202025-04-302025-04-30 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): April 30, 2025 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On April 30, 2025, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter ended March 31, 2025. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated April 30, 2025.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: April 30, 2025

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2024
Q4

Q4 2024 Earnings

8-K

Feb 3, 2025

0001558370-25-000609

TX0000082020falseTX00000820202025-02-032025-02-03 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): February 3, 2025 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On February 3, 2025, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and full year ended December 31, 2024. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated February 3, 2025.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: February 3, 2025

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2024
Q3

Q3 2024 Earnings

8-K

Oct 30, 2024

0001558370-24-013962

TX0000082020falseTX00000820202024-10-302024-10-30 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): October 30, 2024 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On October 30, 2024, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and nine-months ended September 30, 2024. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated October 30, 2024.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: October 30, 2024

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2024
Q2

Q2 2024 Earnings

8-K

Jul 31, 2024

0001558370-24-010494

TX0000082020falseTX00000820202024-07-312024-07-31 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): July 31, 2024 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On July 31, 2024, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and six-months ended June 30, 2024. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated July 31, 2024.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: July 31, 2024

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2024
Q1

Q1 2024 Earnings

8-K

Apr 30, 2024

0001558370-24-006286

TX0000082020falseTX00000820202024-04-302024-04-30 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): April 30, 2024 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On April 30, 2024, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter ended March 31, 2024. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated April 30, 2024.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: April 30, 2024

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2023
Q4

Q4 2023 Earnings

8-K

Feb 2, 2024

0001558370-24-000718

TX0000082020falseTX00000820202024-02-022024-02-02 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): February 2, 2024 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On February 2, 2024, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and full year ended December 31, 2023. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated February 2, 2024.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: February 2, 2024

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2023
Q3

Q3 2023 Earnings

8-K

Oct 31, 2023

0001558370-23-017126

TX0000082020falseTX00000820202023-10-312023-10-31 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): October 31, 2023 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On October 31, 2023, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and nine-months ended September 30, 2023. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated October 31, 2023.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: October 31, 2023

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2023
Q2

Q2 2023 Earnings

8-K

Aug 2, 2023

0001558370-23-012948

TX0000082020falseTX00000820202023-08-022023-08-02 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): August 2, 2023 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On August 2, 2023, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and six-months ended June 30, 2023. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated August 2, 2023.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: August 2, 2023

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2023
Q1

Q1 2023 Earnings

8-K

May 4, 2023

0001558370-23-007908

TX0000082020falseTX00000820202023-05-032023-05-03 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): May 3, 2023 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On May 3, 2023, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter ended March 31, 2023. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ​ ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated May 3, 2023.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: May 3, 2023

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2022
Q4

Q4 2022 Earnings

8-K

Feb 3, 2023

0001558370-23-000852

TX0000082020falseTX00000820202023-02-032023-02-03 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): February 3, 2023 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On February 3, 2023, United States Lime & Minerals, Inc. (the “Company”) issued a News Release announcing the financial results for the quarter and full year ended December 31, 2022. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​ ITEM 5.02. DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS; APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF CERTAIN OFFICERS. ​ Resignation of Principal Operating Officer ​ Russell W. Riggs, the Company’s Vice President – Production, has resigned from his position, effective February 3, 2023. Mr. Riggs will serve as the Company’s Director Technical Services so that the Company can continue to benefit from the vast experience he has gathered during his more than 35 years in the lime and limestone industry. ​ Appointment of New Principal Operating Officer ​ Nathan M. O’Neill has been appointed as the Company’s Vice President – Production, effective February 3, 2023. Mr. O’Neill joined the Company in 2008 as the Quality Control Manager of Arkansas Lime Company. Since 2012, Mr. O’Neill served as the Vice President and Plant Manager of Arkansas Lime Company. Prior to joining Arkansas Lime Company, Mr. O’Neill began his career in the lime industry at Linwood Mining in Davenport, Iowa, where he was a Quality Control Chemist. ​ Mr. O’Neill will be paid an annual base salary of $230,000, subject to future adjustments in the discretion of the Compensation Committee of the Company’s Board of Directors. Mr. O’Neill will be eligible for discretionary cash bonuses, and grants of equity awards under the Company’s Amended and Restated 2001 Long-Term Incentive Plan, in the discretion of the Compensation Committee, as well as other benefits made available generally to employees of the Company. Mr. O’Neill is subject to the Company’s standard confidentiality, non-compete, and non-solicitation agreement. ​ Mr. O’Neill has no family relationships with any director or executive officer of the Company. Mr. O’Neill is not a participant in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated February 3, 2023.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date:

2022
Q3

Q3 2022 Earnings

8-K

Oct 26, 2022

0001558370-22-015414

TX0000082020falseTX00000820202022-10-262022-10-26 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): October 26, 2022 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On October 26, 2022, United States Lime & Minerals, Inc. issued a News Release announcing the financial results for the quarter and nine-months ended September 30, 2022. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated October 26, 2022.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: October 26, 2022

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2022
Q2

Q2 2022 Earnings

8-K

Jul 27, 2022

0001558370-22-011155

TX0000082020falseTX00000820202022-07-272022-07-27 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): July 27, 2022 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On July 27, 2022, United States Lime & Minerals, Inc. issued a News Release announcing the financial results for the quarter and six-months ended June 30, 2022. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated July 27, 2022.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: July 27, 2022

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2022
Q1

Q1 2022 Earnings

8-K

Apr 27, 2022

0001558370-22-006126

TX0000082020falseTX00000820202022-04-272022-04-27 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): April 27, 2022 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On April 27, 2022, United States Lime & Minerals, Inc. issued a News Release announcing the financial results for the quarter ended March 31, 2022. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated April 27, 2022.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: April 27, 2022

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2021
Q4

Q4 2021 Earnings

8-K

Jan 31, 2022

0001558370-22-000639

TX0000082020falseTX00000820202022-01-312022-01-31 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): January 31, 2022 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On January 31, 2022, United States Lime & Minerals, Inc. issued a News Release announcing the financial results for the quarter and full year ended December 31, 2021. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated January 31, 2022.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: January 31, 2022

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2021
Q3

Q3 2021 Earnings

8-K

Oct 27, 2021

0001558370-21-013608

TX0000082020falseTX00000820202021-10-272021-10-27 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): October 27, 2021 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On October 27, 2021, United States Lime & Minerals, Inc. issued a News Release announcing the financial results for the quarter and nine months ended September 30, 2021. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated October 27, 2021.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: October 27, 2021

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2021
Q2

Q2 2021 Earnings

8-K

Jul 28, 2021

0001558370-21-009493

TX0000082020falseTX00000820202021-07-282021-07-28 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): July 28, 2021 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On July 28, 2021, United States Lime & Minerals, Inc. issued a News Release announcing the financial results for the quarter and six months ended June 30, 2021. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated July 28, 2021.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: July 28, 2021

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

2021
Q1

Q1 2021 Earnings

8-K

Apr 28, 2021

0001558370-21-005108

TX0000082020falseTX00000820202021-04-282021-04-28 ​ ​

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

​ Date of Report (Date of earliest event reported): April 28, 2021 ​

UNITED STATES LIME & MINERALS, INC.

(Exact name of registrant as specified in its charter) ​ ​

TEXAS

​ 0-4197 ​ 75-0789226

(State or other jurisdiction of ​ (Commission File Number) ​ (IRS Employer Identification No.)

incorporation) ​ ​ ​ ​

​ ​ ​ ​ ​

5429 LBJ FREEWAY, SUITE 230, DALLAS, TEXAS

​ 75240

(Address of principal executive offices) ​ (Zip Code)

​ (972) 991-8400 (Registrant’s telephone number, including area code) ​ (Former name or former address, if changed since last report) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): ​ ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ​ ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ​ ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ​ ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:

Title of each class Trading Symbol(s) Name of each exchange on which registered

Common stock, $0.10 par value

USLM

The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ ​ ​ ​

ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION.

​ On April 28, 2021, United States Lime & Minerals, Inc. issued a News Release announcing the financial results for the quarter ended March 31, 2021. A copy of the News Release is attached hereto as Exhibit 99.1 and incorporated by reference herein in response to this Item 2.02. ​

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS.

​ (d)  Exhibits ​ The Exhibit Index set forth below is incorporated by reference in response to this Item. ​

EXHIBIT INDEX

​ ​

Exhibit Number ​ Exhibit

​ ​ ​

99.1 ​ News Release of United States Lime & Minerals, Inc. dated April 28, 2021.

104 ​ Cover Page Interactive Data File (formatted as Inline XBRL).

​ ​

2

SIGNATURES

​ Pursuant to the requirements of the Securities Exchange Act of 1934, United States Lime & Minerals, Inc. has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​

Date: April 28, 2021

UNITED STATES LIME & MINERALS, INC.

​ ​

​ By: /s/ Michael L. Wiedemer

​ ​ Michael L. Wiedemer, Vice President and

​ ​ Chief Financial Officer

​ ​ ​

3

About United States Lime & Minerals Inc. (USLM) Earnings

This page provides United States Lime & Minerals Inc. (USLM) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on USLM's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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