GBIO

Generation Bio Co

NASDAQ

$5.34-6.97%

Close Feb 6, 2026

Price history and reported events

1Y price return -33.7%

Prices adjusted for splits; dividends excluded.

About the chart and event marks

Feb 6, 2025–Feb 6, 2026. Returns are rebased to the first displayed observation. Prices use the latest stored close's share basis, linked backward through stored price returns. Marks use their recorded calendar dates, including non-trading days; their lanes do not imply a price or that an event caused a move.

Insiders: green purchases, red sales. Other lanes: 13F reporting period ends, stored earnings-calendar dates and flagged filings. Select a mark or open the dated list for its evidence.

Dated events · 0

Reading stored signals…

Healthcare • Biotechnology

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GBIO is not an active listing in our security master. Figures below are historical and may be incomplete; insider, red-flag and holder tracking does not cover it.

Insider Activity

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Why it matters

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Smart Money

Holder IQ: medium

Q3 2025, filed Nov 14, 2025

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Red Flags

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1 month: -2.4%
3 months: +2.9%
1 year: -35.8%

More market facts

Dividend: No dividends on record

End-of-day close from stored market data, not a live quote.

Portfolio context

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Market context

Smart money context

Holder IQ: MEDIUM

0 smart-money holders: institutions with a high Holder IQ

Q3 2025, filed Nov 14, 2025

Note: 13F filings are reported up to 45 days after quarter-end.

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Price history and reported events

1Y price return -33.7%

Prices adjusted for splits; dividends excluded.

About the chart and event marks

Insiders: green purchases, red sales. Other lanes: 13F reporting period ends, stored earnings-calendar dates and flagged filings. Select a mark or open the dated list for its evidence.

Dated events · 0