Christopher Whitfield
Insider
First SEC filing: April 14, 2015 · Latest: April 14, 2015
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 9, 2015 | SINT | F | 36,102 | $0.58 | $20,939 | 74,472 Direct | -32.65% | Disposed | -100.0% (price as of 2026-10-02) |
| March 9, 2015 | SINT | A | 74,472 | · | · | 74,472 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 8, 2015 | SINT | A | 100,000 | · | · | 170,000 Direct | +142.86% | Acquired | (price as of 2026-10-02) |
| Jan. 8, 2015 | SINT | D | 100,000 | · | · | 70,000 Direct | -58.82% | Disposed | (price as of 2026-10-02) |
| Jan. 7, 2015 | SINT | A | 70,000 | · | · | 170,000 Direct | +70.00% | Acquired | (price as of 2026-10-02) |
| Aug. 13, 2014 | SINT | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 8, 2015 | SINT | Stock Option | Common Stock | $0.95 | Aug. 13, 2024 | 100,000 | Acquired |
| Jan. 8, 2015 | SINT | Stock Option | Common Stock | $2.95 | Aug. 13, 2024 | 100,000 | Disposed |
| Jan. 7, 2015 | SINT | Stock Options | Common Stock | $0.97 | Jan. 7, 2025 | 70,000 | Acquired |
| Aug. 13, 2014 | SINT | Stock Options | Common Stock | $2.95 | Aug. 13, 2024 | 100,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).