Hock Woo Chiang
CIK 1560589 · View on SEC EDGAR ↗
First SEC filing: Oct. 24, 2012 · Latest: Oct. 24, 2012
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Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 14, 2018 | COHU | S | 7,300 | $27.58 | $201,334 | 64,647 Direct | -10.15% | Disposed | 96.8% (price as of 2026-08-21) |
| Aug. 14, 2018 | COHU | S | 8,525 | $27.59 | $235,205 | 71,947 Direct | -10.59% | Disposed | 96.8% (price as of 2026-08-21) |
| Nov. 16, 2017 | COHU | S | 10,000 | $24.78 | $247,800 | 69,488 Direct | -12.58% | Disposed | 119.1% (price as of 2026-08-21) |
| Aug. 31, 2017 | COHU | S | 10,844 | $18.77 | $203,542 | 79,488 Direct | -12.00% | Disposed | 189.2% (price as of 2026-08-21) |
| May 11, 2017 | COHU | S | 6,000 | $18.88 | $113,280 | 79,488 Direct | -7.02% | Disposed | 187.6% (price as of 2026-08-21) |
| May 10, 2017 | COHU | S | 6,000 | $19.07 | $114,420 | 86,173 Direct | -6.51% | Disposed | 184.7% (price as of 2026-08-21) |
| May 9, 2017 | COHU | S | 6,000 | $19.02 | $114,120 | 86,173 Direct | -6.51% | Disposed | 185.4% (price as of 2026-08-21) |
| Feb. 28, 2017 | COHU | S | 6,000 | $16.66 | $99,960 | 78,975 Direct | -7.06% | Disposed | 225.9% (price as of 2026-08-21) |
| Feb. 27, 2017 | COHU | S | 6,000 | $17.08 | $102,480 | 78,975 Direct | -7.06% | Disposed | 217.9% (price as of 2026-08-21) |
| Feb. 24, 2017 | COHU | S | 6,000 | $16.53 | $99,180 | 78,975 Direct | -7.06% | Disposed | 228.4% (price as of 2026-08-21) |
| Aug. 13, 2014 | COHU | S | 2,000 | $12.21 | $24,420 | 39,347 Direct | -4.84% | Disposed | 344.6% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 31, 2017 | COHU | Employee Stock Option (Right to Buy) | Common Stock (10,844) | $9.44 | March 26, 2023 | 10,844 | Disposed |
| May 11, 2017 | COHU | Employee Stock Option (Right to Buy) | Common Stock (6,000) | $9.28 | Oct. 23, 2022 | 6,000 | Disposed |
| May 10, 2017 | COHU | Employee Stock Option (Right to Buy) | Common Stock (6,000) | $9.28 | Oct. 23, 2022 | 6,000 | Disposed |
| May 9, 2017 | COHU | Employee Stock Option (Right to Buy) | Common Stock (6,000) | $9.28 | Oct. 23, 2022 | 6,000 | Disposed |
| Feb. 28, 2017 | COHU | Employee Stock Option (Right to Buy) | Common Stock (6,000) | $9.28 | Oct. 23, 2022 | 6,000 | Disposed |
| Feb. 27, 2017 | COHU | Employee Stock Option (Right to Buy) | Common Stock (6,000) | $9.28 | Oct. 23, 2022 | 6,000 | Disposed |
| Feb. 24, 2017 | COHU | Employee Stock Option (Right to Buy) | Common Stock (6,000) | $9.28 | Oct. 23, 2022 | 6,000 | Disposed |
| March 26, 2013 | COHU | Employee Stock Option (Right to Buy) | Common Stock (10,844) | $9.44 | March 26, 2023 | 10,844 | Acquired |
| Oct. 23, 2012 | COHU | Employee Stock Option (Right to Buy) | Common Stock (36,000) | $0.00 | Oct. 23, 2022 | 36,000 | 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 |
|---|---|---|---|---|
| Oct. 24, 2012 | COHU | Common Stock | 0 | Direct |