Public research preview
Kathy Manning, Representative disclosure: Biogen Inc. - Common Stock (BIIB)
Disclosed a buy transaction in Biogen Inc. - Common Stock (BIIB). 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 2022, 00.00
- Parser confidence
- 94%
- Instrument mapping
- 95%
- Filing delay
- 21 days
Timeline
Transaction date
20 Jul 2022
Public disclosure
10 Aug 2022
Now
Tracked today
Filing delay: 21 days
Price movement
Complete coverage
- Provider
- Yahoo Finance daily close
- Fetched
- 10 Jun 2026
Stock path
BIIB from pre-transaction context through latest close.
Bought
20 Jul 2022 ยท 207,49 USD
- Observed transaction close
- 207,49
- Observed disclosure close
- 221,04
- Observed latest close
- 192,62
- Pre-disclosure move
- +6.5%
- Post-disclosure move
- -12.9%
- Market-adjusted move
- -12.9%
- Pre-disclosure peak run-up
- +6.5%
- Retrace from peak
- 0.0%
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 10 Aug 2022, 00.00
- Parser confidence
- 94%
- Instrument mapping
- 95%