Che-Chia Wei
Insider
First SEC filing: March 18, 2026 · Latest: June 9, 2026
Insider at
Insider transactions
6 buys (P)
0 sells (S)
Net: $67,341
Avg return of open purchases vs now: 563.3%
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 |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 7, 2026 | TSM | P | 149 | $76.20 | $11,354 | 18,136 Indirect | +0.83% | Acquired | 520.4% (price as of 2026-10-02) |
| Sept. 1, 2026 | TSM | A | 204,375 | · | · | 7,656,724 Direct | +2.74% | Acquired | (price as of 2026-10-02) |
| Aug. 7, 2026 | TSM | P | 152 | $73.31 | $11,143 | 17,987 Indirect | +0.85% | Acquired | 544.9% (price as of 2026-10-02) |
| July 7, 2026 | TSM | P | 146 | $76.62 | $11,187 | 17,835 Indirect | +0.83% | Acquired | 517.0% (price as of 2026-10-02) |
| June 5, 2026 | TSM | P | 150 | $76.01 | $11,402 | 17,689 Indirect | +0.86% | Acquired | 522.0% (price as of 2026-10-02) |
| May 8, 2026 | TSM | P | 160 | $71.82 | $11,491 | 17,539 Indirect | +0.92% | Acquired | 558.3% (price as of 2026-10-02) |
| April 9, 2026 | TSM | P | 186 | $57.87 | $10,764 | 17,379 Indirect | +1.08% | Acquired | 717.0% (price as of 2026-10-02) |
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) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.