SND Form 144: Proposed sale of 249,948 Class A shares

SND filer submitted a Rule 144 notice reporting proposed sales of Class A Common stock.

Rhea-AI Filing Summary

SND filer submitted a Rule 144 notice reporting proposed sales of Class A Common stock. The filing lists 249,948 Class A shares associated with a pre-IPO investment and shows prior dispositions by Frank Porcelli of 100,000, 150,000, and 50,000 shares on 03/04/2026, 03/05/2026, and 03/09/2026, respectively, with cash proceeds noted.

FAQ

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

What does SND's Form 144 disclose about shares to be sold?

The filing lists 249,948 Class A Common shares tied to a pre-IPO investment. It identifies the securities class and the number of shares proposed for sale under Rule 144; proceeds treatment is shown as cash in the excerpt.

Who reported recent sales in SND's Form 144 and how many shares were sold?

The filing shows transactions by Frank Porcelli totaling 300,000 shares sold in three trades: 100,000 on 03/04/2026, 150,000 on 03/05/2026, and 50,000 on 03/09/2026, with cash proceeds recorded for each.

Are proceeds from the reported sales specified in the SND Form 144?

Yes; the excerpt shows cash proceeds associated with the reported trades, including amounts such as 402,785, 603,380, and 189,018 tied to the respective dispositions listed for March 2026.

Which broker-dealer is named on the SND Form 144 filing?

The filing names UBS Financial Services Inc with an address at 1000 Harbor Blvd, Weehawken, NJ. A specific indicated share quantity of 75,000 appears adjacent to the broker entry in the excerpt.

What is the effective date shown on the SND Form 144 excerpt?

The excerpt includes an SEC-related date of 03/10/2026 next to certain securities information. That date appears in the securities table and aligns with the March 2026 reported dispositions.

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

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Accepted by SEC EDGAR 03/10/2026 - 04:15 PM EDT Learn about SEC filing dates

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

144: Filer Information

Filer CIK	0001319575
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Smart Sand Inc.
SEC File Number	001-37936
Address of Issuer	1000 Floral Vale Blvd Suite 225 Yardley PENNSYLVANIA 19067
Phone	281-231-2660
Name of Person for Whose Account the Securities are To Be Sold	Frank Porcelli
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Class A Common	UBS Financial Services Inc 1000 Harbor Blvd 3rd Floor Weehawken NJ 07086	75000	290568.68	43538189	03/10/2026	NASD

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

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Class A Common	09/13/2011	Pre-IPO Investment	Issuer			249948	09/13/2011	Cash

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

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

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Frank Porcelli 211 Polo Lane Lawrence NY 11559	Class A Common	03/04/2026	100000	402785
Frank Porcelli 211 Polo Lane Lawrence NY 11559	Class A Common	03/05/2026	150000	603380
Frank Porcelli 211 Polo Lane Lawrence NY 11559	Class A Common	03/09/2026	50000	189018

144: Remarks and Signature

Remarks
Date of Notice	03/10/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/JOSEPH CASSIDY, for UBS Financial Services Inc, as attorney-in-fact for Frank Porcelli
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)