Geron
GERN · NASDAQ · Health Care · Pharmaceutical Preparations
Pharmaceutical Preparations company based in Foster City, Ca.
Example public filing
Ra Capital Management, L.P. added to its stake +3.39M shares
Ra Capital Management, L.P. added to its stake in Geron, per its Q4 2025 13F.
- 63.8M
- Shares reported · +3.39M vs prior quarter
- 0.86%
- Disclosed portfolio weight
- $84.2M
- Reported value
- Holdings as of
- Dec 31, 2025
- Filed
- Feb 17, 2026
Data as of Oct 11, 2026. A real record from the official source, chosen as the most recent insider trade or, failing that, the most recent filing of another kind; not a recommendation.
On file for GERN, last 12 months
- 18
- Insider filings
- 0
- Congress trades
- 6
- Fund positions
- 0
- Federal contracts
Records OQRO holds, counted by their date; a 13F position is counted once per quarter it is reported.
Insider buying and selling since 2006
Insiders of Geron reported 14 open-market purchases and 109 sales since 2006; purchases in 7 different years, most recently 2025.
| Year | Bought | Sold |
|---|---|---|
| 2026 | — | 1×1 trade |
| 2025 | 4×4 trades | — |
| 2024 | — | 5×5 trades |
| 2023 | 2×2 trades | 8×8 trades |
| 2020 | 3×3 trades | — |
| 2019 | — | 1×1 trade |
| 2018 | — | 11×11 trades |
| 2015 | — | 3×3 trades |
| 2014 | 1×1 trade | 4×4 trades |
| 2013 | 1×1 trade | 1×1 trade |
| 2012 | 1×1 trade | 4×4 trades |
| 2011 | 2×2 trades | 14×14 trades |
| 2010 | — | 13×13 trades |
| 2009 | — | 26×26 trades |
| 2008 | — | 7×7 trades |
| 2007 | — | 5×5 trades |
| 2006 | — | 6×6 trades |
Open-market purchases (code P) and sales (code S) on Forms 4 and 5. Up to Sep 2024 from the SEC's Insider Transactions Data Sets; since Oct 2024 from each filing as it is published. A trade filed twice (an amendment) counts once. The amounts, the people and every filing are in OQRO Pro.
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24 records for Geron in the last 12 months, each linked to its filing. Full histories, the screener, alerts for the companies you follow and Ask OQRO.
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What this page holds
- Insider trades and planned sales
- Politician trades (House and Senate)
- Fund holdings from 13F filings
- Federal contracts, lobbying and short selling
- Full history and context, with a link to every filing
What OQRO is
OQRO reads the public record for US-listed companies — insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings, and federal contract awards — and puts each one in plain words next to the filing it came from. It describes what was disclosed. It does not give investment advice or tell you what to buy.
Want to see real filings before you pay? The home page shows live ones, free, with the link to each source document.
Questions about Geron insider trading
Have Geron insiders bought shares recently?
No open-market purchase by an insider of Geron was filed in the last 90 days. The latest on record was on May 13, 2025.
How often do Geron insiders buy and sell shares?
Since 2006, Geron insiders reported 14 open-market purchases and 109 sales on Forms 4 and 5, with purchases in 7 different years, most recently 2025.
Do members of Congress trade GERN?
No trade in Geron (GERN) was disclosed by a member of Congress in the last 12 months.
When does Geron report its next results?
Geron's next results are expected on Nov 3, 2026. The date can move until the company confirms it. Insiders often trade in the weeks right after results.
Where does this data come from?
From official filings only: SEC Forms 4, 5 and 144 for insiders, House and Senate periodic transaction reports for Congress, SEC Form 13F for funds, Form 8-K for company events and USAspending for federal contracts. Every record on OQRO links to its source. It is public data, not investment advice.