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GERN Insider Trading

Insider Ownership Percentage: 1.71%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $0.00

Geron Insider Trading History Chart

This chart shows the insider buying and selling history at Geron by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Geron Share Price & Price History

Current Price: $1.28
Price Change: +0.30 (1.20%)
As of 05/22/2026 04:00 PM ET

This chart shows the closing price history over time for GERN up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Geron Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
2/27/2025John A. ScarlettCEOBuy12,500$1.76$22,000.0012,500View SEC Filing Icon  
2/27/2025Scott Alan SamuelsEVPBuy15,000$1.61$24,150.0026,682View SEC Filing Icon  
7/8/2024Andrew J. GrethleinCOOSell674,348$4.56$3,075,026.88View SEC Filing Icon  
6/10/2024Faye FellerEVPSell287,900$4.63$1,332,977.00View SEC Filing Icon  
6/4/2024John A. ScarlettCEOSell600,000$4.00$2,400,000.00600,000View SEC Filing Icon  
8/24/2023Elizabeth G. O'FarrellDirectorBuy6,607$2.28$15,063.967,407View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Geron (NASDAQ:GERN)

73.71% of Geron stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at GERN by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Geron Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
5/22/2026Segall Bryant & Hamill LLC4,740,048$7.06M0.1%-6.1%0.739%Search for SEC Filing on Google Icon
5/20/2026Vivo Capital LLC8,671,797$12.92M1.1%-68.1%1.352%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE4,556,278$6.79M0.0%+68.9%0.710%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC2,218,196$3.30M0.0%+826.7%0.346%Search for SEC Filing on Google Icon
5/18/2026ADAR1 Capital Management LLC200,000$0.30M0.0%-40.5%0.031%Search for SEC Filing on Google Icon
5/18/2026Amundi132,367$0.20M0.0%+365.7%0.021%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System737,143$1.10M0.0%+55.1%0.115%Search for SEC Filing on Google Icon
5/18/2026Eversept Partners LP18,834,883$28.06M1.5%+6.7%2.936%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company 148,669$0.22M0.0%-10.9%0.023%Search for SEC Filing on Google Icon
5/14/2026Renaissance Technologies LLC1,799,521$2.68M0.0%+144.1%0.281%Search for SEC Filing on Google Icon
5/14/2026Pale Fire Capital SE4,888,304$7.28M0.6%+2.1%0.762%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.41,891$62K0.0%+23.0%0.007%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers29,767$44K0.0%-48.5%0.005%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank947,500$1.41M0.0%+2.3%0.148%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp1,540,236$2.30M0.0%-2.1%0.240%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.39,519$59K0.0%+20.5%0.006%Search for SEC Filing on Google Icon
5/1/2026Candriam S.C.A.3,921,476$5.84M0.0%+38.1%0.612%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC22,284$33K0.0%N/A0.003%Search for SEC Filing on Google Icon
4/28/2026Nvest Financial LLC508,474$0.76M0.3%+122.2%0.079%Search for SEC Filing on Google Icon
4/28/2026Abel Hall LLC63,642$95K0.0%+45.9%0.010%Search for SEC Filing on Google Icon
4/27/2026Y Intercept Hong Kong Ltd35,863$53K0.0%N/A0.006%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC279,083$0.42M0.0%+75.8%0.044%Search for SEC Filing on Google Icon
3/3/2026Caitong International Asset Management Co. Ltd38,319$51K0.0%+5,092.3%0.006%Search for SEC Filing on Google Icon
2/26/2026Seven Fleet Capital Management LP777,880$1.03M0.8%N/A0.122%Search for SEC Filing on Google Icon
2/23/2026Virtu Financial LLC129,333$0.17M0.0%N/A0.020%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.1,225,658$1.62M0.0%+27.6%0.192%Search for SEC Filing on Google Icon
2/18/2026Mercer Global Advisors Inc. ADV91,619$0.12M0.0%+104.4%0.014%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd258,397$0.34M0.0%+56.1%0.040%Search for SEC Filing on Google Icon
2/18/2026Vestal Point Capital LP11,320,000$14.94M0.5%-34.3%1.773%Search for SEC Filing on Google Icon
2/18/2026Virtus Investment Advisers LLC502,509$0.66M0.2%+76.4%0.079%Search for SEC Filing on Google Icon
2/18/2026Polymer Capital Management US LLC34,232$45K0.0%-25.6%0.005%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd178,497$0.24M0.0%-31.8%0.028%Search for SEC Filing on Google Icon
2/18/2026Man Group plc123,848$0.16M0.0%+117.2%0.019%Search for SEC Filing on Google Icon
2/18/2026Inspire Investing LLC354,150$0.47M0.0%+7.6%0.055%Search for SEC Filing on Google Icon
2/18/2026Eversept Partners LP17,659,983$23.31M1.2%+40.2%2.767%Search for SEC Filing on Google Icon
2/17/2026ADAR1 Capital Management LLC336,176$0.44M0.0%-26.3%0.053%Search for SEC Filing on Google Icon
2/17/2026Almitas Capital LLC896,323$1.18M0.3%-5.3%0.140%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC44,386$59K0.0%-89.4%0.007%Search for SEC Filing on Google Icon
2/17/2026Abel Hall LLC43,627$58K0.0%N/A0.007%Search for SEC Filing on Google Icon
2/17/2026RA Capital Management L.P.63,771,366$84.18M0.9%+5.6%9.990%Search for SEC Filing on Google Icon
2/17/2026Amundi28,423$38K0.0%N/A0.004%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD312,027$0.41M0.0%+8.0%0.049%Search for SEC Filing on Google Icon
2/17/2026Atom Investors LP37,341$49K0.0%+137.0%0.006%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board202,520$0.27M0.0%-7.7%0.032%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada39,264$52K0.0%-84.4%0.006%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC1,130,076$1.49M0.0%-65.6%0.177%Search for SEC Filing on Google Icon
2/16/2026MML Investors Services LLC834,115$1.10M0.0%+51.4%0.131%Search for SEC Filing on Google Icon
2/16/2026Mariner LLC49,804$66K0.0%-35.9%0.008%Search for SEC Filing on Google Icon
2/16/2026Arax Advisory Partners627,297$0.83M0.0%-55.0%0.098%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC1,575,429$2.08M0.0%-18.6%0.247%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 166,844$0.22M0.0%-7.5%0.026%Search for SEC Filing on Google Icon
2/13/2026CANADA LIFE ASSURANCE Co75,160$99K0.0%-51.5%0.012%Search for SEC Filing on Google Icon
2/13/2026Segall Bryant & Hamill LLC5,048,936$6.67M0.1%-5.4%0.791%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp31,762$42K0.0%-54.5%0.005%Search for SEC Filing on Google Icon
2/13/2026Rafferty Asset Management LLC821,890$1.09M0.0%-16.7%0.129%Search for SEC Filing on Google Icon
2/13/2026State Street Corp26,867,322$35.47M0.0%+0.9%4.209%Search for SEC Filing on Google Icon
2/13/2026Dynamic Technology Lab Private Ltd111,281$0.15M0.0%+248.6%0.017%Search for SEC Filing on Google Icon
2/13/2026Caitong International Asset Management Co. Ltd25,148$33K0.1%+3,307.6%0.004%Search for SEC Filing on Google Icon
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC1,232,288$1.63M0.0%-6.1%0.193%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN855,141$1.13M0.0%+11.2%0.134%Search for SEC Filing on Google Icon
2/13/2026Vistica Wealth Advisors LLC25,000$33K0.0%N/A0.004%Search for SEC Filing on Google Icon
2/12/2026HRT Financial LP1,200,225$1.58M0.0%+33.1%0.188%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC297,062$0.39M0.0%+11.4%0.047%Search for SEC Filing on Google Icon
2/12/2026Cibc World Markets Corp36,138$48K0.0%N/A0.006%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC737,166$0.97M0.0%-68.8%0.115%Search for SEC Filing on Google Icon
2/12/2026EntryPoint Capital LLC151,909$0.20M0.1%N/A0.024%Search for SEC Filing on Google Icon
2/12/2026Jasper Ridge Partners L.P.20,995$28K0.0%-35.3%0.003%Search for SEC Filing on Google Icon
2/12/2026Alps Advisors Inc.524,159$0.69M0.0%+73.3%0.082%Search for SEC Filing on Google Icon
2/12/2026Nuveen LLC1,999,843$2.64M0.0%+1.3%0.313%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG5,140,809$6.79M0.0%+0.2%0.805%Search for SEC Filing on Google Icon
2/11/2026Clearbridge Investments LLC14,242,953$18.80M0.0%+0.1%2.231%Search for SEC Filing on Google Icon
2/11/2026Los Angeles Capital Management LLC364,212$0.45M0.0%-3.2%0.057%Search for SEC Filing on Google Icon
2/10/2026Nvest Financial LLC228,791$0.30M0.1%-27.1%0.036%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.16,174,398$21.35M0.0%-24.1%2.534%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC13,027,335$17.20M0.0%-0.7%2.041%Search for SEC Filing on Google Icon
2/6/2026Global Retirement Partners LLC100,000$0.13M0.0%+66.7%0.016%Search for SEC Filing on Google Icon
2/6/2026ProShare Advisors LLC128,026$0.17M0.0%+10.2%0.020%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG3,273,705$4.32M0.0%-57.6%0.513%Search for SEC Filing on Google Icon
1/29/2026LCM Capital Management Inc22,400$30K0.0%+80.6%0.004%Search for SEC Filing on Google Icon
1/29/2026Vanguard Group Inc.35,660,969$47.07M0.0%+3.6%5.586%Search for SEC Filing on Google Icon
1/29/2026China Universal Asset Management Co. Ltd.104,020$0.14M0.0%-7.0%0.016%Search for SEC Filing on Google Icon
1/27/202655 North Private Wealth LLC21,753$29K0.0%N/A0.003%Search for SEC Filing on Google Icon
1/20/2026Lazari Capital Management Inc.93,924$0.12M0.0%-8.7%0.015%Search for SEC Filing on Google Icon
1/16/2026Aberdeen Group plc9,527,083$12.58M0.0%+59.6%1.492%Search for SEC Filing on Google Icon
1/14/2026Hennion & Walsh Asset Management Inc.421,458$0.56M0.0%+15.7%0.066%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC158,787$0.21M0.0%+40.1%0.025%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.487,249$0.67M0.0%-9.8%0.076%Search for SEC Filing on Google Icon
12/2/2025Swiss Life Asset Management Ltd26,371$36K0.0%+73.6%0.004%Search for SEC Filing on Google Icon
11/21/2025CIBC Bancorp USA Inc.58,230$80K0.0%N/A0.009%Search for SEC Filing on Google Icon
11/21/2025Forefront Analytics LLC52,258$72K0.1%+48.5%0.008%Search for SEC Filing on Google Icon
11/17/2025Woodline Partners LP5,883,792$8.06M0.0%-26.4%0.922%Search for SEC Filing on Google Icon
11/17/2025Velan Capital Investment Management LP80,000$0.11M0.1%+14.3%0.013%Search for SEC Filing on Google Icon
11/17/2025Vestal Point Capital LP17,225,000$23.60M1.1%-27.5%2.698%Search for SEC Filing on Google Icon
11/17/2025Polymer Capital Management US LLC45,987$63K0.0%-58.7%0.007%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd4,722,818$6.47M0.0%-5.2%0.740%Search for SEC Filing on Google Icon
11/17/2025Prelude Capital Management LLC537,927$0.74M0.1%-50.4%0.084%Search for SEC Filing on Google Icon
11/17/2025Northwestern Mutual Wealth Management Co.42,050$58K0.0%+2,002.5%0.007%Search for SEC Filing on Google Icon
11/17/2025Nantahala Capital Management LLC9,025,000$12.36M0.4%N/A1.414%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC11,367,989$15.57M0.0%+97.8%1.781%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.304,213$0.41M0.0%-18.3%0.048%Search for SEC Filing on Google Icon
Data available starting January 2016

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Geron logo
Geron Corporation, a late-stage clinical biopharmaceutical company, focuses on the development and commercialization of therapeutics for myeloid hematologic malignancies. It develops imetelstat, a telomerase inhibitor that is in Phase 3 clinical trials, which inhibits the uncontrolled proliferation of malignant stem and progenitor cells in myeloid hematologic malignancies for the treatment of low or intermediate-1 risk myelodysplastic syndromes and intermediate-2 or high-risk myelofibrosis. The company was incorporated in 1990 and is headquartered in Foster City, California.
Read More on Geron

Today's Range

Now: $1.28
Low: $1.25
High: $1.29

50 Day Range

MA: $1.52
Low: $1.22
High: $1.77

52 Week Range

Now: $1.28
Low: $1.04
High: $2.01

Volume

6,861,199 shs

Average Volume

15,045,723 shs

Market Capitalization

$821.15 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.68

Who are the company insiders with the largest holdings of Geron?

Geron's top insider shareholders include:
  1. John A Scarlett (CEO)
  2. Melissa Kelly Behrs (EVP)
  3. Daniel Bradbury (Director)
  4. Robert J Spiegel (Director)
  5. Olivia Kyusuk Bloom (CFO)
  6. Stephen Rosenfield (EVP)
  7. Scott Alan Samuels (EVP)
  8. Elizabeth G O'farrell (Director)
  9. Andrew J Grethlein (COO)
  10. Faye Feller (EVP)
Learn More about top insider investors at Geron.

Who are the major institutional investors of Geron?

Geron's top institutional investors include:
  1. Eversept Partners LP — 2.94%
  2. Vivo Capital LLC — 1.35%
  3. Pale Fire Capital SE — 0.76%
  4. Segall Bryant & Hamill LLC — 0.74%
  5. Bank of America Corp DE — 0.71%
  6. Candriam S.C.A. — 0.61%
Learn More about top institutional investors of Geron stock.

Which major investors are selling Geron stock?

Within the last quarter, GERN stock was sold by these institutional investors:
  1. Vivo Capital LLC
  2. Segall Bryant & Hamill LLC
  3. ADAR1 Capital Management LLC
  4. Bank of New York Mellon Corp
  5. Cetera Investment Advisers
  6. The Manufacturers Life Insurance Company

Which major investors are buying Geron stock?

In the last quarter, GERN stock was bought by institutional investors including:
  1. Janus Henderson Group PLC
  2. Bank of America Corp DE
  3. Eversept Partners LP
  4. Candriam S.C.A.
  5. Renaissance Technologies LLC
  6. Nvest Financial LLC
  7. California State Teachers Retirement System
  8. SG Americas Securities LLC
During the previous year, these company insiders have bought Geron stock:
  1. Scott Alan Samuels (EVP)
  2. John A Scarlett (CEO)
Learn More investors buying Geron stock.

Geron Active Insiders

John A Scarlett
John A Scarlett
CEO
Andrew J. Grethlein
Andrew J. Grethlein
xecutive Vice President, Chief Operating Officer
Faye Feller
Faye Feller
Executive Vice President, Chief Medical Officer
Scott Alan Samuels
Scott Alan Samuels
Executive Vice President, Chief Legal Officer and Secretary
Robert J Spiegel
Robert J Spiegel
Director
Elizabeth G O'farrell
Director
V Bryan Lawlis
V Bryan Lawlis
Director
Susan Molineaux
Susan Molineaux
Director