Bernard Shek
CIK 2060144 · View on SEC EDGAR ↗
Insider
First SEC filing: March 14, 2025 · Latest: June 5, 2026
On this page
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net:
$-2,991,696
+ 29 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
29 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 3, 2026 | SNDK | S 10b5-1 | 600 | $1162.16 | $697,296 | 30,915 Direct | -1.90% | Disposed | 35.6% (price as of 2026-08-19) |
| July 1, 2026 | SNDK | S 10b5-1 | 600 | $2088.00 | $1,252,800 | 31,515 Direct | -1.87% | Disposed | -24.5% (price as of 2026-08-19) |
| June 3, 2026 | SNDK | S 10b5-1 | 600 | $1736.00 | $1,041,600 | 32,232 Direct | -1.83% | Disposed | -9.2% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| May 9, 2025 | SNDK | Performance Shares | Common Stock (59,121) | — | — | 59,121 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 14, 2025 | SNDK | Common Stock | 18,023 | Direct |