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Smarter Sand Has Come Of Age

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SEC Filings

SEC Filings

Filing date Form Description Filing Group Downloads
DEFA14A

Additional proxy soliciting materials - definitive

Proxy Filings
DEFA14A

Additional proxy soliciting materials - definitive

Proxy Filings
DEFA14A

Additional proxy soliciting materials - definitive

Proxy Filings
SC 13G

A statement of beneficial ownership of common stock by certain persons

Other
SC 13G

A statement of beneficial ownership of common stock by certain persons

Other
SC 13G

A statement of beneficial ownership of common stock by certain persons

Other
SC 13G

A statement of beneficial ownership of common stock by certain persons

Other
SC 13G

A statement of beneficial ownership of common stock by certain persons

Other
SC 13G

A statement of beneficial ownership of common stock by certain persons

Other
D
Other