Insider Transactions
Form 4 buys & sells for tracked tickers, same-day tranches collapsed, newest first, each with a conviction & rarity score (hover a score for how it's built; click Score to rank by it) · buyouts & sponsor stakes flagged Control / M&A, after each day's scored trades and below them when ranked by score · last 30 days · showing 7 of 7 events matching · excludes filings pending amendment review
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Since: for sales a falling price is shown green (good timing for the seller); sorting uses the raw % change for both.
Discretionary buys & sales (codes P/S). Grants, exercises and withholdings:
show all transaction types (slower).
| Score | Ticker | Insider | Role | Transaction | Shares | Price | Value | Sincevs SPY | Date ▼ | 10b5-1 | Congress |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
57
Open-market purchase+25
Unscheduled+15
Named officer+12
29 co-buyers (fund-pattern ticker, capped)+5
Some signal57
Measures how rare and deliberate this trade is — not expected return. Tested against post-filing returns (median 113-day hold): the bands showed no short-horizon edge. Longer horizons untested.
|
TSM 30 insiders, 14d |
Chang Tzonz-Sheng
Common Shares (2330.TW)
|
SVP | P Purchase | 51 | $79.39 | $4K | — | 2026-10-07 | Unscheduled |
Cleo Fields · Purchase
|
|
57
Open-market purchase+25
Unscheduled+15
Named officer+12
29 co-buyers (fund-pattern ticker, capped)+5
Some signal57
Measures how rare and deliberate this trade is — not expected return. Tested against post-filing returns (median 113-day hold): the bands showed no short-horizon edge. Longer horizons untested.
|
TSM 30 insiders, 14d |
Chuang Juiping
Common Shares (2330.TW)
|
VP | P Purchase | 46 | $79.39 | $4K | — | 2026-10-07 | Unscheduled |
Cleo Fields · Purchase
|
|
57
Open-market purchase+25
Unscheduled+15
Named officer+12
29 co-buyers (fund-pattern ticker, capped)+5
Some signal57
Measures how rare and deliberate this trade is — not expected return. Tested against post-filing returns (median 113-day hold): the bands showed no short-horizon edge. Longer horizons untested.
|
TSM 30 insiders, 14d |
Chuang Tzu-Sou
Common Shares (2330.TW)
|
VP | P Purchase | 46 | $79.39 | $4K | — | 2026-10-07 | Unscheduled |
Cleo Fields · Purchase
|
|
57
Open-market purchase+25
Unscheduled+15
Named officer+12
29 co-buyers (fund-pattern ticker, capped)+5
Some signal57
Measures how rare and deliberate this trade is — not expected return. Tested against post-filing returns (median 113-day hold): the bands showed no short-horizon edge. Longer horizons untested.
|
TSM 30 insiders, 14d |
He Jun
Common Shares (2330.TW)
|
VP | P Purchase | 43 | $79.39 | $3K | — | 2026-10-07 | Unscheduled |
Cleo Fields · Purchase
|
|
57
Open-market purchase+25
Unscheduled+15
Named officer+12
29 co-buyers (fund-pattern ticker, capped)+5
Some signal57
Measures how rare and deliberate this trade is — not expected return. Tested against post-filing returns (median 113-day hold): the bands showed no short-horizon edge. Longer horizons untested.
|
TSM 30 insiders, 14d |
Hou Yung-Chin
Common Shares (2330.TW)
|
SVP and Deputy Co-COO | P Purchase | 60 | $79.39 | $5K | — | 2026-10-07 | Unscheduled |
Cleo Fields · Purchase
|
|
57
Open-market purchase+25
Unscheduled+15
Named officer+12
29 co-buyers (fund-pattern ticker, capped)+5
Some signal57
Measures how rare and deliberate this trade is — not expected return. Tested against post-filing returns (median 113-day hold): the bands showed no short-horizon edge. Longer horizons untested.
|
TSM 30 insiders, 14d |
Lin Chris Horng-Dar
Common Shares (2330.TW)
|
VP and CIO | P Purchase | 44 | $79.39 | $3K | — | 2026-10-07 | Unscheduled |
Cleo Fields · Purchase
|
|
57
Open-market purchase+25
Unscheduled+15
Named officer+12
29 co-buyers (fund-pattern ticker, capped)+5
Some signal57
Measures how rare and deliberate this trade is — not expected return. Tested against post-filing returns (median 113-day hold): the bands showed no short-horizon edge. Longer horizons untested.
|
TSM 30 insiders, 14d |
Yeap Choh Fei
Common Shares (2330.TW)
|
SVP | P Purchase | 52 | $79.39 | $4K | — | 2026-10-07 | Unscheduled |
Cleo Fields · Purchase
|