Sunghee Janet Yang
CIK 1750591 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 23, 2018 · Latest: Aug. 23, 2018
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 17 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 1, 2023 | WTI | M | 18,017 | — | — | 36,033 Direct | -33.33% | Disposed | (price as of 2026-08-20) |
| Jan. 1, 2023 | WTI | M | 8,065 | — | — | 8,063 Direct | -50.01% | Disposed | (price as of 2026-08-20) |
| Jan. 1, 2023 | WTI | F | 8,045 | $5.06 | $40,708 | 79,798 Direct | -9.16% | Disposed | -19.1% (price as of 2026-08-20) |
| Jan. 1, 2023 | WTI | M | 18,017 | — | — | 87,843 Direct | +25.80% | Acquired | (price as of 2026-08-20) |
| Jan. 1, 2023 | WTI | F | 3,602 | $5.06 | $18,226 | 69,826 Direct | -4.91% | Disposed | -19.1% (price as of 2026-08-20) |
| Jan. 1, 2023 | WTI | M | 8,065 | — | — | 73,428 Direct | +12.34% | Acquired | (price as of 2026-08-20) |
| May 26, 2022 | WTI | A | 54,050 | — | — | 54,050 Direct | — | Acquired | (price as of 2026-08-20) |
| March 8, 2022 | WTI | A | 8,455 | — | — | 8,455 Direct | — | Acquired | (price as of 2026-08-20) |
| Jan. 1, 2022 | WTI | M | 8,065 | — | — | 16,128 Direct | -33.34% | Disposed | (price as of 2026-08-20) |
| Jan. 1, 2022 | WTI | F | 3,602 | $3.23 | $11,634 | 65,363 Direct | -5.22% | Disposed | 26.8% (price as of 2026-08-20) |
| Jan. 1, 2022 | WTI | M | 8,065 | — | — | 68,965 Direct | +13.24% | Acquired | (price as of 2026-08-20) |
| Dec. 15, 2021 | WTI | M | 24,914 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Dec. 15, 2021 | WTI | F | 9,804 | $3.31 | $32,451 | 60,900 Direct | -13.87% | Disposed | 23.7% (price as of 2026-08-20) |
| Dec. 15, 2021 | WTI | M | 24,914 | — | — | 70,704 Direct | +54.41% | Acquired | (price as of 2026-08-20) |
| Dec. 19, 2018 | WTI | M | 15,957 | — | — | 12,762 Direct | -55.56% | Disposed | (price as of 2026-08-20) |
| Dec. 19, 2018 | WTI | F | 3,886 | $4.84 | $18,808 | 26,996 Direct | -12.58% | Disposed | -15.4% (price as of 2026-08-20) |
| Dec. 19, 2018 | WTI | M | 15,957 | — | — | 30,882 Direct | +106.91% | Acquired | (price as of 2026-08-20) |
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. 1, 2023 | WTI | Restricted Stock Units | Common Stock (18,017) | — | — | 18,017 | Disposed |
| Jan. 1, 2023 | WTI | Restricted Stock Units | Common Stock (8,065) | — | — | 8,065 | Disposed |
| May 26, 2022 | WTI | Restricted Stock Units | Common Stock (54,050) | — | — | 54,050 | Acquired |
| March 8, 2022 | WTI | Performance Share Units | Common Stock (8,455) | — | — | 8,455 | Acquired |
| Jan. 1, 2022 | WTI | Restricted Stock Units | Common Stock (8,065) | — | — | 8,065 | Disposed |
| Dec. 15, 2021 | WTI | Restricted Stock Units | Common Stock (24,914) | — | — | 24,914 | Disposed |
| Dec. 19, 2018 | WTI | Restricted Stock Units | Common Stock (15,957) | — | — | 15,957 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.