Shien-Yang Wu
CIK 2113784 · 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:
$21,067
Avg return of open purchases vs now:
486.6%
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 | 57 | $73.31 | $4,179 | 6,805 Indirect | +0.84% | Acquired | 463.1% (price as of 2026-08-20) |
| July 7, 2026 | TSM | P | 54 | $76.62 | $4,137 | 6,748 Indirect | +0.81% | Acquired | 438.8% (price as of 2026-08-20) |
| June 5, 2026 | TSM | P | 57 | $76.01 | $4,333 | 6,694 Indirect | +0.86% | Acquired | 443.1% (price as of 2026-08-20) |
| May 8, 2026 | TSM | P | 60 | $71.82 | $4,309 | 6,637 Indirect | +0.91% | Acquired | 474.8% (price as of 2026-08-20) |
| April 9, 2026 | TSM | P | 71 | $57.87 | $4,109 | 6,577 Indirect | +1.09% | Acquired | 613.4% (price as of 2026-08-20) |
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) | 630,228 | Direct |
| March 18, 2026 | TSM | Common Shares (2330.TW) | 6,506 | Indirect |
| March 18, 2026 | TSM | Common Shares (2330.TW) | 10,581 | Indirect |
| March 18, 2026 | TSM | Common Shares (2330.TW) | 198,943 | Indirect |
| March 18, 2026 | TSM | American Depositary Shares (TSM) [F3] | 90 | Indirect |