Public research preview
Julia Letlow, Representative disclosure: Taiwan Semiconductor Manufacturing Company Ltd. (TSM)
Disclosed a buy transaction in Taiwan Semiconductor Manufacturing Company Ltd. (TSM). Use this page to inspect source evidence, confidence scores, filing delay, and post-disclosure price movement before deciding whether to research the signal further.
This public page is for public-disclosure research only. It is not investment advice and does not place orders. Verify the official source before relying on any signal.
Evidence passport
Official-source context and parser confidence before any simulation or alert decision.
- Source
- House STOCK Act disclosures
- Published
- 12 Mar 2026, 00:00
- Parser confidence
- 94%
- Instrument mapping
- 95%
- Filing delay
- 38 days
Timeline
Transaction date
2 Feb 2026
Public disclosure
12 Mar 2026
Now
Tracked today
Filing delay: 38 days
Price movement
Complete coverage
- Provider
- Yahoo Finance daily close
- Fetched
- 24 Jul 2026
Most of the move happened before this disclosure became public: the stock peaked +13.6% above the transaction-date close and has since retraced -13.2% from that peak. Buying now is a pullback entry on the disclosed position, not a fresh breakout.
Stock path
TSM from pre-transaction context through latest close.
Bought
2 Feb 2026 · 339.605 USD · Not public yet
System decision
Would have bought · Discount entry — The strategy would have bought this signal, but the entry window has closed. Simulated entry on 12 Mar 2026 at 334.979 USD. Since entry: +20.4%. Planned exit on 10 Apr 2026 after 20 trading days.
- Not public yet
- Buy window
- Window closed
- System buy
- Planned exit
- Observed transaction close
- 339.605
- Observed disclosure close
- 334.979
- Observed latest close
- 403.41
- Pre-disclosure move
- -1.4%
- Post-disclosure move
- +20.4%
- Market-adjusted move
- +8.9%
- 1w since disclosure
- +0.9%
- 1m since disclosure
- +10.1%
- 3m since disclosure
- +21.7%
- Pre-disclosure peak run-up
- +13.6%
- Retrace from peak
- -13.2%
Why Copy Window is Probably too late
Supporting factors
- Parsed buy disclosure for ordinary shares from House STOCK Act disclosures.
- Reported amount is $1,001 - $15,000.
- Post-disclosure move is calculated from Yahoo Finance daily close daily closes.
Cautions
- Yahoo Finance daily close coverage is end-of-day and should be verified against the official price source.
- Review the original source document before making any investment decision.
Source document
House STOCK Act disclosures, published 12 Mar 2026, 00:00
- Parser confidence
- 94%
- Instrument mapping
- 95%