David Yoon
CIK 2007716 · View on SEC EDGAR ↗
Insider
First SEC filing: March 27, 2024 · Latest: March 27, 2024
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 7 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 |
|---|---|---|---|---|---|---|---|---|---|
| March 26, 2024 | GCTS | A | 30,093 | — | — | 30,093 Direct | — | Acquired | (price as of 2026-08-19) |
| March 26, 2024 | GCTS | A | 8,204 | — | — | 8,204 Direct | — | Acquired | (price as of 2026-08-19) |
| March 26, 2024 | GCTS | A | 6,536 | — | — | 6,536 Direct | — | Acquired | (price as of 2026-08-19) |
| March 26, 2024 | GCTS | A | 18,676 | — | — | 18,676 Direct | — | Acquired | (price as of 2026-08-19) |
| March 26, 2024 | GCTS | A | 20,543 | — | — | 20,543 Direct | — | Acquired | (price as of 2026-08-19) |
| March 26, 2024 | GCTS | A | 13,540 | — | — | 13,540 Direct | — | Acquired | (price as of 2026-08-19) |
| March 26, 2024 | GCTS | A | 9,431 | — | — | 9,431 Direct | — | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| March 26, 2024 | GCTS | Stock Option (Right to Buy) | Common Stock (6,536) | $0.11 | Jan. 1, 2025 | 6,536 | Acquired |
| March 26, 2024 | GCTS | Stock Option (Right to Buy) | Common Stock (18,676) | $0.11 | Jan. 1, 2031 | 18,676 | Acquired |
| March 26, 2024 | GCTS | Stock Option (Right to Buy) | Common Stock (20,543) | $0.11 | Jan. 1, 2030 | 20,543 | Acquired |
| March 26, 2024 | GCTS | Stock Option (Right to Buy) | Common Stock (13,540) | $0.11 | Jan. 1, 2029 | 13,540 | Acquired |
| March 26, 2024 | GCTS | Stock Option (Right to Buy) | Common Stock (9,431) | $0.11 | Jan. 1, 2028 | 9,431 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).