Smart Sand GC sells 27,970 shares near $4.9

Smart Sand, Inc. (SND) reported that executive officer James Douglas Young, Executive Vice President, General Counsel and Secretary, sold a total of 27,970 shares of common stock in two open-market transactions.

Rhea-AI Filing Summary

Smart Sand, Inc. (SND) reported that executive officer James Douglas Young, Executive Vice President, General Counsel and Secretary, sold a total of 27,970 shares of common stock in two open-market transactions. On August 18, 2026, he sold 16,301 shares at a weighted average price of $4.93 per share, in multiple trades ranging from $4.86 to $5.00. On August 19, 2026, he sold 11,669 shares at a weighted average price of $4.84 per share, in trades ranging from $4.80 to $5.05. The filing indicates these are direct ownership sales and does not state the post-transaction share balance.

Insider Trade Summary

Net Seller: 27,970 shares

Net Sell 2 txns

Insider Young James Douglas

Role SEE REMARKS

Sold 27,970 shs ($137K)

Type	Security	Shares	Price	Value
Sale	Common Stock F2	11,669	$4.84	$56K
Sale	Common Stock F1	16,301	$4.93	$80K

Holdings After Transaction: Common Stock — 344,958 shares (Direct)

Footnotes (2)

1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.86 to $5.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.
2. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.80 to $5.05, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Key Figures

Total shares sold: 27,970 shares Shares sold on 2026-08-18: 16,301 shares Weighted average price on 2026-08-18: $4.93 per share +3 more

6 metrics

Total shares sold 27,970 shares Aggregate of two open-market sales on August 18–19, 2026 by executive officer

Shares sold on 2026-08-18 16,301 shares Common Stock sale at weighted average price with trades from $4.86 to $5.00

Weighted average price on 2026-08-18 $4.93 per share Common Stock sold in multiple transactions ranging from $4.86 to $5.00

Shares sold on 2026-08-19 11,669 shares Common Stock sale at weighted average price with trades from $4.80 to $5.05

Weighted average price on 2026-08-19 $4.84 per share Common Stock sold in multiple transactions ranging from $4.80 to $5.05

Net buy/sell shares 27,970 shares Net-sell direction across all reported transactions in this Form 4

Key Terms

weighted average price, open market or private transaction, beneficial ownership

3 terms

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open market or private transaction financial

"transaction_code_description: Sale in open market or private transaction"

beneficial ownership financial

"full information regarding the number of shares sold at each separate price"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

FAQ

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

What insider transactions did SND report for James Douglas Young on August 18–19, 2026?

Smart Sand, Inc. (SND) reported that James Douglas Young sold 27,970 shares of common stock over August 18–19, 2026. The sales were executed in two open-market transactions at weighted average prices of $4.93 and $4.84 per share, respectively.

How many SND shares did James Douglas Young sell on August 18, 2026, and at what prices?

On August 18, 2026, James Douglas Young sold 16,301 shares of Smart Sand (SND) common stock at a weighted average price of $4.93. The shares were sold in multiple trades within a price range of $4.86 to $5.00 per share.

What were the details of James Douglas Young’s SND stock sale on August 19, 2026?

On August 19, 2026, James Douglas Young sold 11,669 shares of Smart Sand (SND) common stock at a weighted average price of $4.84 per share. These shares were sold in multiple transactions with prices ranging from $4.80 to $5.05 per share.

Were James Douglas Young’s recent SND stock sales direct or indirect holdings?

The reported transactions show that James Douglas Young’s sales of Smart Sand (SND) stock involved directly held common shares. The ownership type for both transactions is listed as Direct (D), with no indicated intermediary entities or indirect ownership structures.

Were James Douglas Young’s SND stock sales under a Rule 10b5-1 trading plan?

The filing indicates the Rule 10b5-1 checkbox is not affirmed for these transactions. There is no footnote stating that the August 18–19, 2026 Smart Sand (SND) stock sales were executed pursuant to a pre-arranged Rule 10b5-1 trading plan.

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

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Available on EDGAR 08/19/2026 - 07:05 PM EDT Accepted by SEC EDGAR 08/19/2026 - 07:04 PM EDT 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^*

Young James Douglas

(Last) (First) (Middle)

C/O SMART SAND, INC.

1000 FLORAL VALE BOULEVARD, SUITE 225

(Street)

YARDLEY PENNSYLVANIA 19067

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Smart Sand, Inc. [ SND ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/18/2026

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
Common Stock	08/18/2026		S		16,301	D	$4.93(1)	356,627	D
Common Stock	08/19/2026		S		11,669	D	$4.84(2)	344,958	D

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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.86 to $5.00, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.80 to $5.05, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Remarks:

The Reporting Person is Executive Vice President, General Counsel and Secretary of the Issuer.

	/s/ Lee E. Beckelman as Attorney-in-Fact for James D. Young	08/19/2026
	** 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)