Public research preview
Richard W. Allen, Representative disclosure: Costco Wholesale Corporation - Common Stock (COST)
Disclosed a buy transaction in Costco Wholesale Corporation - Common Stock (COST). 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
- 10 Aug 2023, 00:00
- Parser confidence
- 94%
- Instrument mapping
- 95%
- Filing delay
- 1430 days
Timeline
Transaction date
10 Sept 2019
Public disclosure
10 Aug 2023
Now
Tracked today
Filing delay: 1430 days
Price movement
Complete coverage
- Provider
- Yahoo Finance daily close
- Fetched
- 10 Jun 2026
Most of the move happened before this disclosure became public: the stock peaked +114.3% above the transaction-date close and has since retraced -6.8% from that peak. Buying now is a pullback entry on the disclosed position, not a fresh breakout.
Stock path
COST from pre-transaction context through latest close.
Bought
10 Sept 2019 · 270.185 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 10 Aug 2023 at 539.447 USD. Since entry: +80.7%. Planned exit on 8 Sept 2023 after 20 trading days.
- Not public yet
- Buy window
- Window closed
- System buy
- Planned exit
- Observed transaction close
- 270.185
- Observed disclosure close
- 539.447
- Observed latest close
- 974.75
- Pre-disclosure move
- +99.7%
- Post-disclosure move
- +80.7%
- Market-adjusted move
- +80.7%
- 1w since disclosure
- -2.6%
- 1m since disclosure
- -0.3%
- 3m since disclosure
- +1.4%
- Pre-disclosure peak run-up
- +114.3%
- Retrace from peak
- -6.8%
Why Copy Window is Probably too late
Supporting factors
- Parsed buy disclosure for ordinary shares from House STOCK Act disclosures.
- Reported amount is $15,001 - $50,000.
- 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 10 Aug 2023, 00:00
- Parser confidence
- 94%
- Instrument mapping
- 95%