Tzu-Sou Chuang
CIK 2114030 · 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)
1 sells (S)
Net:
$-13,948,807
+ 2 non-open-market transactions below
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
2 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 7, 2026 | TSM | P | 47 | $73.31 | $3,446 | 5,806 Indirect | +0.82% | Acquired | 473.2% (price as of 2026-08-21) |
| July 7, 2026 | TSM | P | 45 | $76.62 | $3,448 | 5,759 Indirect | +0.79% | Acquired | 448.4% (price as of 2026-08-21) |
| June 5, 2026 | TSM | P | 46 | $76.01 | $3,496 | 5,714 Indirect | +0.81% | Acquired | 452.8% (price as of 2026-08-21) |
| May 19, 2026 | TSM | S | 200,000 | $69.83 | $13,966,000 | 2,495,165 Direct | -7.42% | Disposed | 501.7% (price as of 2026-08-21) |
| May 8, 2026 | TSM | P | 48 | $71.82 | $3,447 | 5,668 Indirect | +0.85% | Acquired | 485.1% (price as of 2026-08-21) |
| April 9, 2026 | TSM | P | 58 | $57.87 | $3,356 | 5,620 Indirect | +1.04% | 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) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.