Disclosure timeline21 days from execution to publication · legal deadline 2 business days
Oct 31 executedNov 21, 2025 disclosed
GBIO · daily
Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.
Tax withholding — administrative, little informational value
Relative size+1 / 25
$2K reported value · 0.2% of prior position
Filing timing+10 / 15
Disclosed 15 business days after execution (deadline: 2)
Historical behavior+8 / 15
First recorded trade by this actor in this security
Frequency & clustering0 / 15
No clustered activity in the dataset
Market events0 / 10
No material company filing within 60 days after the trade
The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.
Mcdonough Geoff filed this Form 4 reporting a tax withholding of GBIO on Oct 31, 2025. It became public on Nov 21, 2025. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.
Extraction
Method
Form 4 XML
Confidence
1.00
Director
Mcdonough Geoffcik:0001732701
Issuer
Generation Bio Co.cik:0001733294
Revision history · 0
No field has changed since this record was first ingested.
Company events
No records
No material filings recorded for this issuer.
Source error
Price history for GBIO is unavailable.
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