SEC ownership of Smart Sand, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001529628.

Comparable stake leader

Jeffrey L. Gendell

Disclosed value leader

Charles Edwin Young

Comparable rows

50/50

Latest evidence

29 May 2026

Top shareholders Insider holders Latest transactions

Symbol: SND on Nasdaq
Ownership evidence mix: 13F, 13D/G, and 3/4/5
Largest current holder: Jeffrey L. Gendell
Latest large-stake holder: Jeffrey L. Gendell
Latest evidence date: 29 May 2026
CIK: 0001529628
Location: Yardley, PA

Ownership snapshot

Top shareholders of Smart Sand, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Jeffrey L. Gendell

Disclosed value leader

Charles Edwin Young

Comparable rows

50/50

Latest evidence

29 May 2026

13F 13D/G 3/4/5 Lead comparable stake: 7.3% 13D/G row: Jeffrey L. Gendell Showing 1-8 of 50 holder rows.

Quick read

Jeffrey L. Gendell leads the comparable SEC ownership view at 7.3%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Comparable ownership Top 5

Jeffrey L. Gendell 7.3%

Charles Edwin Young 17%

Robert Kiszka 2.3%

Andrew R. Speaker 2.3%

Lee E. Beckelman 1.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Jeffrey L. Gendell	13F 13D/G Individual 13F 13D/G	7.3% from 13D/G	$16,009,805 3,126,915 shares	—	31 Mar 2026
Charles Edwin Young	3/4/5 CEO, Director, 10%+ Owner 3/4/5	17%	$36,302,271 7,363,544 shares	+$170,202	17 Mar 2026
Robert Kiszka	3/4/5 Executive VP of Operations 3/4/5	2.3%	$4,885,279 990,929 shares	—	17 Mar 2026
Andrew R. Speaker	3/4/5 Director, Other* 3/4/5	2.3%	$5,072,462 977,353 shares	—	28 Feb 2026
Lee E. Beckelman	3/4/5 Chief Financial Officer 3/4/5	1.8%	$3,821,568 775,166 shares	—	17 Mar 2026
Francis Michael Porcelli	3/4/5 Director 3/4/5	1.7%	$2,879,512 744,060 shares	-$1,485,250	09 Mar 2026
William John Young	3/4/5 Chief Operating Officer 3/4/5	1.5%	$3,064,842 621,672 shares	—	17 Mar 2026
Ronald P. Whelan	3/4/5 The Reporting Person is Executive Vice President of Last Mile Solutions of the Issuer. 3/4/5	1.1%	$2,128,234 472,941 shares	+$42,383	29 May 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$1,643,979.

Buys

$212,585

Insiders: 2

Sells

$1,856,564

Insiders: 4

Net

-$1,643,979

Shares: -363,342

Window

Last 12 months

4 rolling buckets

Buy value Sell value

Shares: 101,133 Shares: 464,475

Window (months)	Buy shares	Sell shares	Buy value	Sell value	Net value
0-3	4,444	452,975	$19,998	$1,834,138	-$1,814,140
3-6	0	0	$0	$0	$0
6-9	46,689	0	$96,805	$0	+$96,805
9-12	50,000	11,500	$95,782	$22,425	+$73,356

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-15 of 15 reporting-owner rows connected to Smart Sand, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows

Largest current holder

Charles Edwin Young

Net 12M change

-$1,643,979

Latest report

29 May 2026

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Charles Edwin Young	CEO, Director, 10%+ Owner	$36,302,271	+$170,202	+0.47%	Mixed	17 Mar 2026
Andrew R. Speaker	Director, Other*	$5,072,462			Mixed	28 Feb 2026
Robert Kiszka	Executive VP of Operations	$4,885,279			Mixed	17 Mar 2026
Lee E. Beckelman	Chief Financial Officer	$3,821,568			Mixed	17 Mar 2026
William John Young	Chief Operating Officer	$3,064,842			Mixed	17 Mar 2026
Francis Michael Porcelli	Director	$2,879,512	-$1,485,250	-34%	Filing P/S	09 Mar 2026
Ronald P. Whelan	The Reporting Person is Executive Vice President of Last Mile Solutions of the Issuer.	$2,128,234	+$42,383	+2%	Filing P/S	29 May 2026
James D. Young	The Reporting Person is Executive Vice President, General Counsel and Secretary of the Issuer.	$1,850,860			Mixed	17 Mar 2026
Sharon Spurlin	Director	$936,507	-$246,500	-21%	Filing P/S	26 May 2026
Timothy Pawlenty	Director	$807,202	-$102,389	-11%	Filing P/S	11 Mar 2026
Christopher M. Green	Vice President of Accounting	$206,488	-$22,425	-9.8%	Mixed	01 Jan 2026
Richard J. Shearer	President-Industrial Products	$188,945			Mixed	07 Jun 2023
Susan E. Neumann	The Reporting Person is Vice President of Accounting, Controller and Secretary of the Issuer.	$160,981			Mixed	30 Jul 2021
Jose E. Feliciano	Director	$62,510			Mixed	23 Aug 2023
CLEARLAKE CAPITAL GROUP, L.P.	Director				Mixed	14 Mar 2023

Recent insider transactions for Smart Sand, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	SEC-reported value	SEC-reported price	Shares	Shares owned	Date	Ownership
Ronald P. Whelan	SND	Common Stock	Purchase	0.95%	$19,998	$4.50	4,444	472,941	29 May 2026	Direct
Sharon Spurlin	SND	Common Stock	Sale	-20.8%	$246,500	$4.93	-50,000	189,961	26 May 2026	Direct
Charles Edwin Young	SND	Common Stock	Tax liability	-0.38%			-5,811	1,520,844	17 Mar 2026	Direct
Lee E. Beckelman	SND	Common Stock	Tax liability	-0.43%			-3,321	775,166	17 Mar 2026	Direct
James D. Young	SND	Common Stock	Tax liability	-0.66%			-2,500	375,428	17 Mar 2026	Direct
William John Young	SND	Common Stock	Tax liability	-0.62%			-3,885	621,672	17 Mar 2026	Direct
Ronald P. Whelan	SND	Common Stock	Tax liability	-0.55%			-2,614	468,497	17 Mar 2026	Direct
Robert Kiszka	SND	Common Stock	Tax liability	-0.48%			-2,591	542,191	17 Mar 2026	Direct
Timothy Pawlenty	SND	Common Stock	Sale	-11.3%	$102,388	$3.66	-27,975	220,547	11 Mar 2026	Direct
Francis Michael Porcelli	SND	Common Stock	Sale	-9.16%	$290,250	$3.87	-75,000	744,060	10 Mar 2026	Direct
Francis Michael Porcelli	SND	Common Stock	Sale	-5.75%	$189,000	$3.78	-50,000	819,060	09 Mar 2026	Direct
Francis Michael Porcelli	SND	Common Stock	Sale	-14.7%	$603,000	$4.02	-150,000	869,060	05 Mar 2026	Direct
Francis Michael Porcelli	SND	Common Stock	Sale	-8.94%	$403,000	$4.03	-100,000	1,019,060	04 Mar 2026	Direct
Ronald P. Whelan	SND	Common Stock	Tax liability	-1.31%			-6,250	471,111	28 Feb 2026	Direct
Robert Kiszka	SND	Common Stock	Tax liability	-1.12%			-6,194	544,782	28 Feb 2026	Direct
Charles Edwin Young	SND	Common Stock	Tax liability	-0.9%			-13,896	1,526,655	28 Feb 2026	Direct
Lee E. Beckelman	SND	Common Stock	Tax liability	-1.01%			-7,941	778,487	28 Feb 2026	Direct
William John Young	SND	Common Stock	Tax liability	-1.46%			-9,291	625,557	28 Feb 2026	Direct
James D. Young	SND	Common Stock	Tax liability	-1.56%			-5,977	377,928	28 Feb 2026	Direct
Andrew R. Speaker	SND	Common Stock	Tax liability	-1.26%			-12,469	977,353	28 Feb 2026	Direct
Lee E. Beckelman	SND	Common Stock	Tax liability	-1.84%			-14,779	786,428	27 Feb 2026	Direct
Lee E. Beckelman	SND	Common Stock	Award	8.2%			60,691	801,207	27 Feb 2026	Direct
William John Young	SND	Common Stock	Tax liability	-2.65%			-17,292	634,848	27 Feb 2026	Direct
William John Young	SND	Common Stock	Award	10.3%			60,691	652,140	27 Feb 2026	Direct
James D. Young	SND	Common Stock	Tax liability	-2.82%			-11,124	383,905	27 Feb 2026	Direct
James D. Young	SND	Common Stock	Award	11.4%			40,461	395,029	27 Feb 2026	Direct
Robert Kiszka	SND	Common Stock	Tax liability	-2.05%			-11,515	550,976	27 Feb 2026	Direct
Robert Kiszka	SND	Common Stock	Award	7.75%			40,461	562,491	27 Feb 2026	Direct
Ronald P. Whelan	SND	Common Stock	Tax liability	-2.37%			-11,610	477,361	27 Feb 2026	Direct
Ronald P. Whelan	SND	Common Stock	Award	9.02%			40,461	488,971	27 Feb 2026	Direct
Charles Edwin Young	SND	Common Stock	Tax liability	-1.65%			-25,862	1,540,551	27 Feb 2026	Direct
Charles Edwin Young	SND	Common Stock	Award	7.27%			106,208	1,566,413	27 Feb 2026	Direct
Charles Edwin Young	SND	Common Stock	Tax liability	-1.18%			-17,423	1,460,205	22 Feb 2026	Direct
Lee E. Beckelman	SND	Common Stock	Tax liability	-1.42%			-10,632	740,516	22 Feb 2026	Direct
James D. Young	SND	Common Stock	Tax liability	-2.16%			-7,837	354,568	22 Feb 2026	Direct
William John Young	SND	Common Stock	Tax liability	-2.03%			-12,260	591,449	22 Feb 2026	Direct
Robert Kiszka	SND	Common Stock	Tax liability	-1.62%			-8,618	522,030	22 Feb 2026	Direct
Ronald P. Whelan	SND	Common Stock	Tax liability	-1.91%			-8,756	448,510	22 Feb 2026	Direct
Christopher M. Green	SND	Common Stock, par value $0.001 per share	Tax liability	-2.4%			-1,268	51,622	01 Jan 2026	Direct
Christopher M. Green	SND	Common Stock, par value $0.001 per share	Tax liability	-1.98%			-1,069	52,890	16 Dec 2025	Direct
Ronald P. Whelan	SND	Common Stock	Purchase	0.95%	$12,586	$2.91	4,325	457,266	28 Nov 2025	Direct
Ronald P. Whelan	SND	Common Stock	Purchase	0.74%	$9,799	$2.94	3,333	452,941	26 Nov 2025	Direct
Charles Edwin Young	SND	Common Stock	Purchase	1.37%	$38,200	$1.91	20,000	1,477,628	05 Sep 2025	Direct
Charles Edwin Young	SND	Common Stock	Purchase	0.58%	$16,130	$1.92	8,401	1,457,628	04 Sep 2025	Direct
Charles Edwin Young	SND	Common Stock	Purchase	0.74%	$20,091	$1.89	10,630	1,449,227	03 Sep 2025	Direct
Christopher M. Green	SND	Common Stock, par value $0.001 per share	Sale	-17.6%	$22,425	$1.95	-11,500	53,959	28 Aug 2025	Direct
Charles Edwin Young	SND	Common Stock	Purchase	0.62%	$17,464	$1.96	8,910	1,438,597	19 Aug 2025	Direct
Charles Edwin Young	SND	Common Stock	Purchase	0.81%	$21,501	$1.87	11,498	1,429,687	18 Aug 2025	Direct
Charles Edwin Young	SND	Common Stock	Purchase	2.13%	$56,817	$1.92	29,592	1,418,189	15 Aug 2025	Direct
Lee E. Beckelman	SND	Common Stock	Tax liability	-0.85%			-6,454	751,148	30 Jul 2025	Direct

^* marks a reported price that did not pass the local price check.