Public research preview
Daniel Goldman, Representative disclosure: Biogen Inc. - Common Stock (BIIB)
Disclosed a sell 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
- 17 Apr 2023, 00.00
- Parser confidence
- 94%
- Instrument mapping
- 95%
- Filing delay
- 42 days
Timeline
Transaction date
6 Mar 2023
Public disclosure
17 Apr 2023
Now
Tracked today
Filing delay: 42 days
Price movement
Complete coverage
- Provider
- Yahoo Finance daily close
- Fetched
- 9 Jun 2026
Stock path
BIIB from pre-transaction context through latest close.
Transaction
6 Mar 2023 · 270,25 USD
- Observed transaction close
- 270,25
- Observed disclosure close
- 292,2
- Observed latest close
- 199,1
- Pre-disclosure move
- +8.1%
- Post-disclosure move
- -31.9%
- Market-adjusted move
- -31.9%
Why Copy Window is Probably too late
Supporting factors
- Parsed sell 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 17 Apr 2023, 00.00
- Parser confidence
- 94%
- Instrument mapping
- 95%