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Signal ledger
Historical Replay
Robinhood Chain
Proof
Trading
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Daily Brief
Live
Congress
Directory
Corporate Insiders
Planned Sales & Stakes
Government Money
Political Influence
Institutions
Washington Network
Follow the Power
Disclosure Clock
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Convergence
INSIDER Alpha
Signal ledger
Historical Replay
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Proof
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SEC FORM 4
2h ago
HOUSE PTR
2h ago
SEC 13F
2h ago
ROBINHOOD CHAIN
2h ago
YE
Corporate insider
Young Charles Edwin
Director, CEO, 10% Owner
CIK 0001687132
EDGAR filings
Open in network
○
Watch profile
Disclosed transactions
1
Buys / sells
0 / 0
Max Insider Score
13
Connections with evidence
1
Customize layout
Disclosed transactions
Score
Actor
Security
Side
Value
Executed
Disclosed
Lag
Source
Evidence
13
YE
Young Charles Edwin
Director, CEO, 10% Owner
SND
Smart Sand, Inc.
Grant or award
A
—
110.1K sh
Aug 19, 2026
Aug 20, 2026
traded Aug 19, 2026
+1d
SEC FORM 4
Evidence
Evidence
Close
Verified connections
Insider of
evidence
Smart Sand, Inc.
Director, CEO, 10% Owner · Aug 20, 2026