SND

SEC source: 0001529628-18-000017 · wf-form4_152529326441119.xml · nonDerivative · entry 1

YOUNG CHARLES EDWIN · CIK 0001687132 · Director · CEO · 10% owner

KEYSTONE CRANBERRY, LLC · CIK 0001688727 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 208,906

F1 · shares: Represents shares of Restricted Stock granted to the Reporting Person on April 30, 2018 under the Issuer's 2016 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001529628-18-000015 · wf-form4_152529285019216.xml · nonDerivative · entry 1

KISZKA ROBERT · CIK 0001687112 · Executive VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,951

F1 · shares: Represents shares of Restricted Stock granted to the Reporting Person on April 30, 2018 under the Issuer's 2016 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001529628-18-000014 · wf-form4_152529267973530.xml · nonDerivative · entry 1

YOUNG WILLIAM JOHN · CIK 0001687130 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,134

F1 · shares: Represents shares of Restricted Stock granted to the Reporting Person on April 30, 2018 under the Issuer's 2016 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001529628-18-000013 · wf-form4_152529251227648.xml · nonDerivative · entry 1

WHELAN RONALD P · CIK 0001687143 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 61,487

F1 · shares: Represents shares of Restricted Stock granted to the Reporting Person on April 30, 2018 under the Issuer's 2016 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001529628-18-000016 · wf-form4_152529307175003.xml · nonDerivative · entry 1

Beckelman Lee E · CIK 0001315758 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 177,267

F1 · shares: Represents shares of Restricted Stock granted to the Reporting Person on April 30, 2018 under the Issuer's 2016 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001529628-18-000012 · wf-form4_152529239381332.xml · nonDerivative · entry 1

Young James Douglas · CIK 0001709934 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,322

F1 · shares: Represents shares of Restricted Stock granted to the Reporting Person on April 30, 2018 under the Issuer's 2016 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001529628-18-000005 · wf-form4_152518511249807.xml · nonDerivative · entry 1

NEUMANN SUSAN E · CIK 0001687108 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,999

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-18-022791 · doc4.xml · nonDerivative · entry 1

NEUMANN SUSAN E · CIK 0001687108 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,721

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-18-022797 · doc4.xml · nonDerivative · entry 1

YOUNG WILLIAM JOHN · CIK 0001687130 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,151

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-18-022794 · doc4.xml · nonDerivative · entry 1

WHELAN RONALD P · CIK 0001687143 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,288

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-18-022785 · doc4.xml · nonDerivative · entry 1

Beckelman Lee E · CIK 0001315758 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,284

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-18-020548 · doc4.xml · nonDerivative · entry 1

NEUMANN SUSAN E · CIK 0001687108 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,013

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-18-020549 · doc4.xml · nonDerivative · entry 1

YOUNG WILLIAM JOHN · CIK 0001687130 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,110

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-18-020547 · doc4.xml · nonDerivative · entry 1

WHELAN RONALD P · CIK 0001687143 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,695

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person, the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001529628-20-000042 · wf-form4_158453597549631.xml · nonDerivative · entry 3

NEUMANN SUSAN E · CIK 0001687108 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 60,139

F3 · shares: These shares were acquired under the Issuer's Employee Stock Purchase Plan in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c).

SEC source: 0001529628-20-000039 · wf-form4_158453571645740.xml · nonDerivative · entry 2

KISZKA ROBERT · CIK 0001687112 · Executive VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 217,063

F2 · shares: These shares were acquired under the Issuer's Employee Stock Purchase Plan in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c).

SEC source: 0001529628-20-000047 · wf-form4a_158573639197970.xml · nonDerivative · entry 2

KISZKA ROBERT · CIK 0001687112 · Executive VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 217,063

F2 · shares: These shares were acquired under the Issuer's Employee Stock Purchase Plan in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c).

SEC source: 0001209191-17-060265 · doc4.xml · nonDerivative · entry 1

Pawlenty Timothy · CIK 0001536307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,892

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-17-060684 · doc4a.xml · nonDerivative · entry 1

Pawlenty Timothy · CIK 0001536307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,892

F1 · date: The Form 4, as originally filed, incorrectly reported that the shares were withheld for tax purposes. The Form 4, as amended by this Form 4/A, currently reports that the shares were sold pursuant to a Rule 10b5-1 trading plan.

F2 · kind: Represents shares sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $8.000 to $8.025, 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 purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-17-050518 · doc4.xml · nonDerivative · entry 1

KISZKA ROBERT · CIK 0001687112 · Executive VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 110,629

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.50 to $5.55, 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 purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-17-049594 · doc4.xml · nonDerivative · entry 1

YOUNG CHARLES EDWIN · CIK 0001687132 · Director · CEO · 10% owner

KEYSTONE CRANBERRY, LLC · CIK 0001688727 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,600

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.099 to $5.200, 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 purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-17-049596 · doc4.xml · nonDerivative · entry 1

YOUNG WILLIAM JOHN · CIK 0001687130 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,274

SEC source: 0001209191-17-049592 · doc4.xml · nonDerivative · entry 1

Beckelman Lee E · CIK 0001315758 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 137,500

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $5.10 to $5.16, 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 purchased at each separate price within the ranges set forth in this footnote.

SEC source: 0001209191-17-041166 · doc4.xml · nonDerivative · entry 1

Young James Douglas · CIK 0001709934 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,000

F1 · shares: Represents 24,000 shares of Restricted Stock granted to the Reporting Person on June 19, 2017 under the Issuer's 2016 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001209191-17-039893 · doc4.xml · nonDerivative · entry 1

NEUMANN SUSAN E · CIK 0001687108 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,735

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-17-039902 · doc4.xml · nonDerivative · entry 1

YOUNG WILLIAM JOHN · CIK 0001687130 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,274

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-17-039901 · doc4.xml · nonDerivative · entry 1

WHELAN RONALD P · CIK 0001687143 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,078

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0001209191-17-039898 · doc4.xml · nonDerivative · entry 1

Pawlenty Timothy · CIK 0001536307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,892

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person the vesting of which is based on the Reporting Person's continued employment with or service to the Issuer on the applicable vesting date.

SEC source: 0000899243-17-013392 · doc4.xml · nonDerivative · entry 1

NEUMANN SUSAN E · CIK 0001687108 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,418

F1 · shares: Represents shares withheld for tax purposes upon the vesting of restricted stock granted to the Reporting Person the vesting of which is based on the meeting of certain performance targets by the Issuer.

SEC source: 0001209191-17-024186 · doc4.xml · nonDerivative · entry 1

NEUMANN SUSAN E · CIK 0001687108 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,324

F1 · shares: Represents 3,552 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001209191-17-024205 · doc4.xml · nonDerivative · entry 1

YOUNG CHARLES EDWIN · CIK 0001687132 · Director · CEO · 10% owner

KEYSTONE CRANBERRY, LLC · CIK 0001688727 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,600

F1 · shares: Represents 40,600 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001209191-17-024195 · doc4.xml · nonDerivative · entry 1

ROBINSON TRACY · CIK 0001687363 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,997

F1 · shares: Represents 4,997 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001209191-17-024180 · doc4.xml · nonDerivative · entry 1

KISZKA ROBERT · CIK 0001687112 · Executive VP of Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,629

F1 · shares: Represents 16,396 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001209191-17-024208 · doc4.xml · nonDerivative · entry 1

YOUNG WILLIAM JOHN · CIK 0001687130 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 98,966

F1 · shares: Represents 12,242 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan (the "Plan"), which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date and 6,121 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Plan which are earned on the date as of which the stock prices reaches certain levels for 20 of 30 consecutive days within the 18 months following the grant date, and on such date the shares vest 1/3, and then 1/3 on the first and second anniversary of such date.

SEC source: 0001209191-17-024200 · doc4.xml · nonDerivative · entry 1

WHELAN RONALD P · CIK 0001687143 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,442

F1 · shares: Represents 4,364 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0000899243-17-009163 · doc4.xml · nonDerivative · entry 1

Clearlake Capital Partners, LLC · CIK 0001409591 · Director · 10% owner

Clearlake Capital Partners II GP, L.P. · CIK 0001540841 · Director · 10% owner

CLEARLAKE CAPITAL PARTNERS II (MASTER), L.P. · CIK 0001539291 · Director · 10% owner

CCG Operations, LLC · CIK 0001409590 · Director · 10% owner

Eghbali Behdad · CIK 0001409564 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 10,821,091

F1 · shares: The shares are held of record by Colin Leonard and Jose E. Feliciano for the benefit of Clearlake Capital Partners II (Master), L.P. ("CCPII").

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest over four years following March 30, 2017, the date of grant.

F3 · ownership.nature: The shares are owned of record, as follows: (i) 10,811,097 shares by CCPII, (ii) 4,997 shares by Mr. Leonard for the benefit of CCPII and (iii) 4,997 shares by Mr. Feliciano for the benefit of CCPII. CCPII's general partner is Clearlake Capital Partners II GP, L.P. ("CCPII GP"). CCPII GP's general partner is Clearlake Capital Partners, LLC ("CCP"). CCP's managing member is CCG Operations, LLC. ("CCG Ops"). Mr. Feliciano and Behdad Eghbali are managers of CCG Ops. As a result, each of Mr. Feliciano, Mr. Eghbali, CCG Ops, CCPII GP and CCP may be deemed to share beneficial ownership of the reported shares.

F4 · ownership.nature: CCPII expressly disclaims beneficial ownership of the reported shares except to the extent of its pecuniary interest therein.

SEC source: 0001209191-17-024173 · doc4.xml · nonDerivative · entry 1

Beckelman Lee E · CIK 0001315758 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,500

F1 · shares: Includes 16,396 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan (the "Plan"), which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date and 14,054 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Plan which are earned on the date as of which the stock prices reaches certain levels for 20 of 30 consecutive days within the 18 months following the grant date, and on such date the shares vest 1/3, and then 1/3 on the first and second anniversary of such date.

SEC source: 0001209191-17-024197 · doc4.xml · nonDerivative · entry 1

SPEAKER ANDREW R · CIK 0001241268 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,153,305

F1 · shares: Represents 4,997 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0000899243-17-009162 · doc4.xml · nonDerivative · entry 2

Feliciano Jose Enrique · CIK 0001323912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,997

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest over four years following March 30, 2017, the date of grant.

F5 · shares: The shares are held of record by Mr. Feliciano for the benefit of CCPII.

F4 · balance_after: Mr. Feliciano expressly disclaims beneficial ownership of the reported shares except to the extent of his pecuniary interest therein.

F5 · balance_after: The shares are held of record by Mr. Feliciano for the benefit of CCPII.

SEC source: 0000899243-17-009162 · doc4.xml · nonDerivative · entry 1

Feliciano Jose Enrique · CIK 0001323912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 10,816,094

F1 · shares: The shares are held of record by Colin Leonard for the benefit of Clearlake Capital Partners II (Master), L.P. ("CCPII"), of which Mr. Feliciano is co-manager of the managing member of the ultimate general partner.

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest over four years following March 30, 2017, the date of grant.

F3 · ownership.nature: The shares are owned of record as follows: (i) 10,811,097 shares by CCPII and (ii) 4,997 shares by Mr. Leonard for the benefit of CCPII. CCPII's general partner is Clearlake Capital Partners II GP, L.P. ("CCPII GP"). CCPII GP's general partner is Clearlake Capital Partners, LLC ("CCP"). CCP's managing member is CCG Operations, LLC. ("CCG Ops"). Mr. Feliciano and Behdad Eghbali are managers of CCG Ops. As a result, each of Mr. Feliciano, Mr. Eghbali, CCG Ops, CCPII GP and CCP may be deemed to share beneficial ownership of the reported shares.

F4 · ownership.nature: Mr. Feliciano expressly disclaims beneficial ownership of the reported shares except to the extent of his pecuniary interest therein.

SEC source: 0000899243-17-009164 · doc4.xml · nonDerivative · entry 1

Leonard Colin · CIK 0001539165 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,997

F1 · shares: The shares are held of record by Mr. Leonard for the benefit of Clearlake Capital Partners II (Master), L.P.

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest over four years following March 30, 2017, the date of grant.

F3 · balance_after: Mr. Leonard expressly disclaims beneficial ownership of the reported shares.

SEC source: 0001209191-17-024267 · doc4a.xml · nonDerivative · entry 1

Pawlenty Timothy · CIK 0001536307 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,705

F1 · shares: Represents 4,997 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0001209191-17-024199 · doc4.xml · nonDerivative · entry 1

Spurlin Sharon · CIK 0001545197 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,331

F1 · shares: Represents 4,997 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest in four equal annual installments on each of the next four anniversaries of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0000899243-17-010744 · doc4a.xml · nonDerivative · entry 1

ROBINSON TRACY · CIK 0001687363 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,997

F1 · shares: Represents 4,997 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest on the one year anniversary of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0000899243-17-010756 · doc4a.xml · nonDerivative · entry 1

Clearlake Capital Partners, LLC · CIK 0001409591 · Director · 10% owner

Clearlake Capital Partners II GP, L.P. · CIK 0001540841 · Director · 10% owner

CLEARLAKE CAPITAL PARTNERS II (MASTER), L.P. · CIK 0001539291 · Director · 10% owner

CCG Operations, LLC · CIK 0001409590 · Director · 10% owner

Eghbali Behdad · CIK 0001409564 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 10,821,091

F1 · shares: The shares are held of record by Colin Leonard and Jose E. Feliciano for the benefit of Clearlake Capital Partners II (Master), L.P. ("CCPII").

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest on the first anniversary of March 30, 2017, the date of grant. The original Form 4 filed on April 3, 2017 incorrectly stated that the vesting period of the restricted stock was four years. No other information has been amended by this Form 4/A.

F3 · ownership.nature: The shares are owned of record, as follows: (i) 10,811,097 shares by CCPII, (ii) 4,997 shares by Mr. Leonard for the benefit of CCPII and (iii) 4,997 shares by Mr. Feliciano for the benefit of CCPII. CCPII's general partner is Clearlake Capital Partners II GP, L.P. ("CCPII GP"). CCPII GP's general partner is Clearlake Capital Partners, LLC ("CCP"). CCP's managing member is CCG Operations, LLC. ("CCG Ops"). Mr. Feliciano and Behdad Eghbali are managers of CCG Ops. As a result, each of Mr. Feliciano, Mr. Eghbali, CCG Ops, CCPII GP and CCP may be deemed to share beneficial ownership of the reported shares.

F4 · ownership.nature: CCPII expressly disclaims beneficial ownership of the reported shares except to the extent of its pecuniary interest therein.

SEC source: 0000899243-17-010747 · doc4a.xml · nonDerivative · entry 1

SPEAKER ANDREW R · CIK 0001241268 · SEE REMARKS

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,153,305

F1 · shares: Represents 4,997 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest on the one year anniversary of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.

SEC source: 0000899243-17-010758 · doc4a.xml · nonDerivative · entry 2

Feliciano Jose Enrique · CIK 0001323912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,997

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest on the first anniversary of March 30, 2017, the date of grant. The original Form 4 filed on April 3, 2017 incorrectly stated that the vesting period of the restricted stock was four years. No other information has been amended by this Form 4/A.

F5 · shares: The shares are held of record by Mr. Feliciano for the benefit of CCPII.

F4 · balance_after: Mr. Feliciano expressly disclaims beneficial ownership of the reported shares except to the extent of his pecuniary interest therein.

F5 · balance_after: The shares are held of record by Mr. Feliciano for the benefit of CCPII.

SEC source: 0000899243-17-010758 · doc4a.xml · nonDerivative · entry 1

Feliciano Jose Enrique · CIK 0001323912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 10,816,094

F1 · shares: The shares are held of record by Colin Leonard for the benefit of Clearlake Capital Partners II (Master), L.P. ("CCPII"), of which Mr. Feliciano is co-manager of the managing member of the ultimate general partner.

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest on the first anniversary of March 30, 2017, the date of grant. The original Form 4 filed on April 3, 2017 incorrectly stated that the vesting period of the restricted stock was four years. No other information has been amended by this Form 4/A.

F3 · ownership.nature: The shares are owned of record as follows: (i) 10,811,097 shares by CCPII and (ii) 4,997 shares by Mr. Leonard for the benefit of CCPII. CCPII's general partner is Clearlake Capital Partners II GP, L.P. ("CCPII GP"). CCPII GP's general partner is Clearlake Capital Partners, LLC ("CCP"). CCP's managing member is CCG Operations, LLC. ("CCG Ops"). Mr. Feliciano and Behdad Eghbali are managers of CCG Ops. As a result, each of Mr. Feliciano, Mr. Eghbali, CCG Ops, CCPII GP and CCP may be deemed to share beneficial ownership of the reported shares.

F4 · ownership.nature: Mr. Feliciano expressly disclaims beneficial ownership of the reported shares except to the extent of his pecuniary interest therein.

SEC source: 0000899243-17-010755 · doc4a.xml · nonDerivative · entry 1

Leonard Colin · CIK 0001539165 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,997

F1 · shares: The shares are held of record by Mr. Leonard for the benefit of Clearlake Capital Partners II (Master), L.P.

F2 · shares: Represents shares of restricted stock granted pursuant to Smart Sand, Inc.'s 2016 Long-Term Incentive Plan, which vest on the first anniversary of March 30, 2017, the date of grant. The original Form 4 filed on April 3, 2017 incorrectly stated that the vesting period of the restricted stock was four years. No other information has been amended by this Form 4/A.

F3 · balance_after: Mr. Leonard expressly disclaims beneficial ownership of the reported shares.

SEC source: 0000899243-17-010746 · doc4a.xml · nonDerivative · entry 1

Spurlin Sharon · CIK 0001545197 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,331

F1 · shares: Represents 4,997 shares of Restricted Stock granted to the Reporting Person on March 30, 2017 under the Issuer's 2017 Long Term Incentive Award Plan, which vest on the one year anniversary of the grant date, subject to the Reporting Person's continued employment with or service to the Issuer through the applicable vesting date.