SEC Form 4 · accession 0000899243-18-012687
U.S. SILICA HOLDINGS, INC. · SLCA
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Bradford B Casper
Officer — EVP & Chief Commercial Officer
Period of report
Mar 31, 2018
Accepted (ET)
May 14, 2018 · 4:14 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001524741
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common StockF1 | Mar 31, 2018 | M | 9,878 | — | A | 18,632 | D | |
| Common Stock | Mar 31, 2018 | F | 4,380 | $25.52 | D | 14,252 | D | |
| Common StockF3 | Apr 1, 2018 | M | 2,607 | — | A | 16,859 | D | |
| Common Stock | Apr 1, 2018 | F | 1,157 | $25.52 | D | 15,702 | D |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Restricted Stock UnitsF4,F5 | — | Mar 31, 2018 | M | 9,878 | D | — | — | Common Stock | 9,878 | 9,878 | D |
| Restricted Stock UnitsF4,F6 | — | Apr 1, 2018 | M | 2,607 | D | — | — | Common Stock | 2,607 | 5,214 | D |
Explanation of responses
- F1Scheduled vesting of restricted stock units granted on March 31, 2016.
- F2Tax withholding on vested restricted stock units.
- F3Scheduled vesting of restricted stock units grants on April 1, 2017.
- F4Each restricted stock unit represents a contingent right to receive one share of common stock upon vesting of the unit.
- F5Restricted Stock Units granted on March 31, 2016 and vesting in three equal installments on the anniversaries of the grant date.
- F6Restricted Stock Units granted on April 1, 2017 and vesting in three equal installments on the anniversaries of the grant date.