Chue-San Yoo
CIK 2113775 · View on SEC EDGAR ↗
Insider
First SEC filing: March 18, 2026 · Latest: June 9, 2026
On this page
Insider at
Insider transactions
5 buys (P)
0 sells (S)
Net:
$19,388
Avg return of open purchases vs now:
497.1%
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 7, 2026 | TSM | P | 51 | $73.31 | $3,739 | 6,641 Indirect | +0.77% | Acquired | 473.2% (price as of 2026-08-21) |
| July 7, 2026 | TSM | P | 51 | $76.62 | $3,908 | 6,590 Indirect | +0.78% | Acquired | 448.4% (price as of 2026-08-21) |
| June 5, 2026 | TSM | P | 53 | $76.01 | $4,029 | 6,539 Indirect | +0.82% | Acquired | 452.8% (price as of 2026-08-21) |
| May 8, 2026 | TSM | P | 55 | $71.82 | $3,950 | 6,486 Indirect | +0.86% | Acquired | 485.1% (price as of 2026-08-21) |
| April 9, 2026 | TSM | P | 65 | $57.87 | $3,762 | 6,431 Indirect | +1.02% | Acquired | 626.1% (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.
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 18, 2026 | TSM | Common Shares (2330.TW) | 1,797,614 | Direct |
| March 18, 2026 | TSM | Common Shares (2330.TW) | 6,366 | Indirect |
| March 18, 2026 | TSM | Common Shares (2330.TW) | 7,036 | Indirect |
| March 18, 2026 | TSM | Common Shares (2330.TW) | 219,924 | Indirect |
| March 18, 2026 | TSM | Common Shares (2330.TW) | 851,908 | Indirect |