SND

snd-20260226FALSE000152962800015296282026-02-262026-02-26

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): February 26, 2026

SMART SAND, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3793645-2809926 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

1000 Floral Vale Boulevard, Suite 225 Yardley, Pennsylvania 19067 (Address of principal executive offices and zip code)

Registrant’s telephone number, including area code: (281) 231-2660 Not Applicable (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:

☐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 ClassTrading SymbolName of each exchange on which registered Common Stock, $0.001 par valueSNDNASDAQ

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 26, 2026, Smart Sand, Inc. (the "Company") issued a press release providing information regarding earnings for the fourth quarter and full year ended December 31, 2025 along with the Company's recently approved New Repurchase Program (as defined below). A copy of the press release is attached hereto as Exhibit 99.1. The information, including Exhibit 99.1, in this Form 8-K is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that Section. The information in this Form 8-K shall not be incorporated by reference into any filing under the Securities Act of 1933, except as shall otherwise be expressly set forth by specific reference in such filing. Item 7.01. Regulation FD Disclosure. The disclosure set forth above in Item 2.02 of this Current Report on Form 8-K is incorporated by reference into this Item 7.01. Item 8.01. Other Events.

On February 23, 2026, the Board of Directors of the Company approved a two-year share repurchase program under which the Company may purchase up to $20.0 million of its ordinary shares (the “New Repurchase Program”). The New Repurchase Program will take effect on April 4, 2026 after the expiration of the Company's current share repurchase program. Pursuant to the New Repurchase Program, the Company may repurchase its ordinary shares from time to time, in amounts, at prices and at such times as it deems appropriate, subject to market conditions and other considerations. The Company may make repurchases in the open market, privately negotiated transactions, accelerated repurchase programs or structured share repurchase programs. The New Repurchase Program will be conducted in compliance with applicable legal requirements and shall be subject to market conditions and other factors. The New Repurchase Program does not obligate the Company to acquire any particular amount of ordinary shares, and the New Repurchase Program may be modified or suspended at any time at the Company’s discretion. Item 9.01 Financial Statements and Exhibits. (d)    Exhibits. The following exhibit is furnished herewith:

Exhibit NumberDescription

99.1Smart Sand, Inc. press release dated February 26, 2026

104The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SMART SAND, INC.

Dated: February 26, 2026By:/s/ Lee E. Beckelman Lee E. Beckelman Chief Financial Officer

snd-20251112FALSE000152962800015296282025-11-122025-11-12

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): November 12, 2025

SMART SAND, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3793645-2809926 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

1000 Floral Vale Boulevard, Suite 225 Yardley, Pennsylvania 19067 (Address of principal executive offices and zip code)

Registrant’s telephone number, including area code: (281) 231-2660 Not Applicable (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:

☐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 ClassTrading SymbolName of each exchange on which registered Common Stock, $0.001 par valueSNDNASDAQ

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 November 12, 2025, Smart Sand, Inc. issued a press release providing information regarding earnings for the third quarter ended September 30, 2025. A copy of the press release is attached hereto as Exhibit 99.1. The information, including Exhibit 99.1, in this Form 8-K is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section. The information in this Form 8-K shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall otherwise be expressly set forth by specific reference in such filing. Item 9.01 Financial Statements and Exhibits. (d)    Exhibits. The following exhibit is furnished herewith:

Exhibit Number Description

99.1Smart Sand, Inc. press release dated November 12, 2025

104.0The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SMART SAND, INC.

Dated: November 12, 2025 By:/s/ Lee E. Beckelman Lee E. Beckelman Chief Financial Officer

snd-20250812FALSE000152962800015296282025-08-122025-08-12

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 12, 2025

SMART SAND, INC.

(Exact name of registrant as specified in its charter)

Delaware001-3793645-2809926 (State or other jurisdiction of incorporation)(Commission File Number)(I.R.S. Employer Identification No.)

1000 Floral Vale Boulevard, Suite 225 Yardley, Pennsylvania 19067 (Address of principal executive offices and zip code)

Registrant’s telephone number, including area code: (281) 231-2660 Not Applicable (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:

☐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 ClassTrading SymbolName of each exchange on which registered Common Stock, $0.001 par valueSNDNASDAQ

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 12, 2025, Smart Sand, Inc. issued a press release providing information regarding earnings for the second quarter ended June 30, 2025. A copy of the press release is attached hereto as Exhibit 99.1. The information, including Exhibit 99.1, in this Form 8-K is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section. The information in this Form 8-K shall not be incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall otherwise be expressly set forth by specific reference in such filing. Item 9.01 Financial Statements and Exhibits. (d)    Exhibits. The following exhibit is furnished herewith:

Exhibit Number Description

99.1Smart Sand, Inc. press release dated August 12, 2025

104.0The cover page from this Current Report on Form 8-K, formatted in Inline XBRL.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

SMART SAND, INC.

Dated: August 12, 2025 By:/s/ Lee E. Beckelman Lee E. Beckelman Chief Financial Officer