GERN Geron Corporation - Common Stock

NASDAQ · Biotechnology · View on SEC EDGAR ↗
$1.58
Price · Aug 19, 2026
Fundamentals as of Aug 5, 2026

About Geron Corporation - Common Stock Company overview from Wikipedia

Geron Corporation is a biotechnology company located in Foster City, California which specializes in developing and commercializing therapeutic products for cancer that inhibit telomerase.

Read more

Geron Corporation is a biotechnology company located in Foster City, California which specializes in developing and commercializing therapeutic products for cancer that inhibit telomerase.

Company information

Geron, based in Foster City, California, was founded by gerontologist Mary C. West and Michael D. West, now CEO of AgeX Therapeutics. They secured initial venture capital investments in the company from Kleiner Perkins Caufield & Byers and Venrock. The company was incorporated in 1990 and began doing business in 1992. John A. Scarlett was appointed CEO in 2011.

The company's Scientific and Clinical Advisory Board has included Nobel laureates James Watson, Gunter Blobel, and Carol Greider, and Leonard Hayflick, known for discovering that human cells divide for a limited number of times in vitro (called the Hayflick limit).

In 2017, Geron staff received the highest median pay in California, at $500,250.

Drug candidates

Cancer therapies

Geron Corporation has sponsored human clinical trials of several potential anti-cancer products.

Imetelstat (GRN163L) is a drug that targets telomerase. In studies conducted at Johns Hopkins University, GRN163L was active against both CD138+ and CD138neg cancer stem cells and eliminated the colony forming potential of both by five weeks. Similarly, GRN163L inhibited the in vitro clonogenic growth of CD138neg Multiple Myeloma Cancer Stem Cells isolated from the bone marrow aspirates of patients with multiple myeloma. On November 3, 2014, the FDA removed the full clinical hold on imetelstat and declared the company's clinical development plan as acceptable. In 2014, Geron licensed imetelstat to Janssen Biotech. In 2017, imetelstat was granted fast track status by the FDA for certain patients with myelodysplastic syndrome. In 2018, Janssen Biotech returned the rights to imetelstat to Geron. Imetelstat is currently in two Phase 3 trials: NCT02598661, a study of the drug's ability to reduce the transfusion requirements of patients with myelodysplastic syndrome (MDS), and NCT04576156, an investigation of the drug's effect on the overall survival of patients with myelofibrosis.

A trial of GRNVAC1, a telomerase vaccine being used on patients with prostate cancer was carried out at Duke University. Geron's progress with telomerase vaccines attracted a modest monetary investment in 2005 from Merck.

GRN1005, an LRP-directed conjugate of paclitaxel, was in phase II clinical trials for brain cancer but discontinued based on preliminary results in 2012.

Telomerase activation

In addition to testing drug candidates that exploit cancer cell's dependence on telomerase, Geron is researching the possible applications of activating the enzyme in normal cells to delay cellular senescence. The company is in the early stages of developing a telomerase based treatment for HIV called TAT0002, which is the saponin cycloastragenol in Chinese herb Astragalus propinquus. Geron has granted a license to Telomerase Activation Sciences to sell TA-65, the telomerase activator agent also derived from astragalus. In October 2010 Intertek/AAC Labs, an ISO 17025 internationally recognized lab, found the largest component of TA-65 to be cycloastragenol.

Geron originally investigated telomerase as a means of understanding and modifying human aging. However, Geron has ceased aging research of any kind.

Stem cell therapies

On January 23, 2009, Geron received FDA approval to begin Phase I testing of GRNOPC1 in humans. GRNOPC1 is an embryonic stem cell based drug that is designed to treat specific forms of spinal cord injury through remyelination of damaged axons. This trial does not involve direct use of stem cells however, as GRNOPC1 is composed of oligodendrocyte progenitor cells derived from embryonic stem cell lines. Studies have shown significant restoration of mobility in animals with spinal injuries that received cells.

Geron also has several other embryonic stem cell treatments that are still in the preclinical phase, including GRNCM1, a treatment for heart disease, and GRNIC1, a treatment for diabetes. In tests with diabetic mice, 80% of the mice given GRNIC1 were still alive in 50 days while the entire control group, which was given no treatment, perished.

Geron sold its human stem cell research assets to Asterias in 2013.

GRNOPC1

As of October 2010 and November 2010, one of Geron's most highly publicized trial therapy products has been GRNOPC1, a stem cell therapy designed to heal severe spinal cord injuries. The cells in the GRNOPC1 therapy have been coaxed into becoming early myelinated glial cells, a type of cell that insulates nerve cells. For every GRNOPC1 cell that is injected in the patient, they become six to ten cells in a few months.

In October 2011 updated results on four patients were released. The trial was discontinued in Nov 2011.

In early 2013 BioTime, whose CEO at the time was Geron founder Michael D. West, acquired 400 patents and other intellectual property related to embryonic stem cells from Geron and later went on to restart the trial.

Patent issues

Geron Corporation initially held exclusive rights to three cell types derived from embryonic stem cells, as the result of paying for the research originally conducted by Dr. James Thomson at the University of Wisconsin–Madison. The patents on the other three cell types are owned by the Wisconsin Alumni Research Foundation (WARF). WARF and Geron did not charge academics to study human stem cells but did charge commercial users. In 2001 WARF came under public pressure to widen access to human stem-cell technology, and they launched legal action against Geron Corporation to recover some of the previously sold rights. The two sides agreed that Geron would keep the rights to only three cell types.

In October 2006, a legal challenge was mounted to overturn these patents by The Foundation for Taxpayer and Consumer Rights and the non-profit patent-watchdog Public Patent Foundation. They contended that two of the patents granted to WARF are invalid because they cover a technique published in 1992 for which a patent had already been granted to an Australian researcher. Another part of the challenge came from the molecular biologist Jeanne Loring who stated that University of Wisconsin–Madison stem cell pioneer James Thomson's techniques (currently patents held by WARF) are rendered obvious by a 1990 paper and two textbooks. The outcome of this legal challenge was particularly relevant to the Geron Corporation as it can only license patents that are upheld. The patents were ultimately upheld when the reexamination concluded in 2008.

As an interim measure, on January 23, 2007, WARF relaxed the stem cell patents, allowing industry-sponsored research at academic and non-profit institutions without a license. WARF will allow easier and simpler cost free cell transfers among researchers and would not require a license or agreement from California's taxpayer-funded stem cell research program.

Politics

As a participant in the then-controversial stem cell and cloning area, Geron Corporation was asked to testify about its technology before the U.S. Congress. In 2001, when Congress was attempting to ban all forms of cloning, then Geron CEO Thomas Okarma spoke before Congress to preserve cloning for therapeutic purposes.

Source: Wikipedia, CC BY-SA 4.0 · View on Wikipedia ↗

Wikidata ↗

GERN Stock Snapshot Price, market cap, P/E, EPS, ROE, debt/equity, 52-week range

Price
$1.57
Market Cap
$1M
P/E (TTM)
-0.0
EPS (TTM)
$-0.13
Revenue (TTM)
$237.0K
Div Yield
ROE
-34.4%
Debt/Equity
0.5
52W Range
$1 – $2

GERN Stock Price Chart Daily OHLCV with technical indicators — pan, zoom, and customize your view

10-Year Performance Revenue, net income, margins and EPS trends

Revenue & Net Income $237.0K
8-point trend, -96.2%
2016-12-31 2023-12-31
EPS $-0.13
8-point trend, +31.6%
2016-12-31 2025-12-31
Free Cash Flow
8-point trend, -1090.2%
2016-12-31 2024-12-31
Margins

Valuation P/E, P/S, P/B, EV/EBITDA ratios — is the stock expensive or cheap?

Metric
5Y trend
GERN
Peer Median
P/E (TTM)
5-point trend, -191.3%
-0.0
P/S (TTM)
5-point trend, -98.2%
0.0
12.8
P/B
5-point trend, +19.7%
0.0
3.4
EV / EBITDA
5-point trend, -259.5%
-0.6

Profitability Gross, operating and net margins; ROE, ROA, ROIC

Metric
5Y trend
GERN
Peer Median
ROA
5-point trend, +69.3%
-14.3%
-31.3%
ROE
5-point trend, +58.8%
-34.4%
-38.1%
ROIC
2-point trend, +54.5%
-19.9%

Financial Health Debt, liquidity, solvency — balance sheet strength

Metric
5Y trend
GERN
Peer Median
Debt / Equity
5-point trend, +34.3%
0.5
Current Ratio
5-point trend, +13.4%
4.7
10.9
Quick Ratio
5-point trend, +34.1%
1.0

Growth Revenue, EPS and net income growth: YoY, 3Y CAGR, 5Y CAGR

Metric
5Y trend
GERN
Peer Median
Revenue YoY
5-point trend, -48.5%
-60.2%
Revenue CAGR 3Y
5-point trend, -48.5%
-2.1%

Per Share Metrics EPS, book value per share, cash flow per share, dividend per share

Metric
5Y trend
GERN
Peer Median
EPS (Diluted)
5-point trend, +62.9%
$-0.13

Capital Efficiency Asset turnover, inventory turnover, receivables turnover

Metric
5Y trend
GERN
Peer Median

GERN Analyst Consensus Bullish and bearish analyst opinions, 12-month price target, upside

BUY 11 analysts
  • Strong Buy 4 36.4%
  • Buy 5 45.5%
  • Hold 2 18.2%
  • Sell 0 0.0%
  • Strong Sell 0 0.0%

12-Month Price Target

4 analysts · 2026-08-17
Median target $4.00 +154.0%
Mean target $4.25 +169.8%

Earnings History EPS actual vs estimate, surprise %, beat rate, next earnings date

Avg Surprise
0.01%
Period EPS Actual EPS Est Surprise
June 30, 2026 $-0.02 $-0.01 -0.01%
March 31, 2026 $-0.01 $-0.02 0.01%
Dec. 31, 2025 $-0.02 $-0.03 0.01%
Sept. 30, 2025 $-0.03 $-0.03 0.00%
June 30, 2025 $-0.02 $-0.03 0.01%
March 31, 2025 $-0.03 $-0.04 0.01%

Peer comparison (GICS sub-industry) Key metrics vs sector peers

Ticker Market Cap P/E Rev YoY Net Margin ROE Gross Margin
GERN $845M -10.2 -60.2% -34.4%
ODTX
KURA $913M -3.3 25.2% -413.0% -116.2%
JANX $833M -7.5 -5.5% -1136.2% -11.7%
CLYM $191M -4.5 -34.6%
ANNX $750M -3.7 -100.7%
SLDB $445M -2.8 -79.5%
OLMA $2.03B -13.4 -39.4%
DSGN $567M -7.7 -32.8%
CADL $310M -7.8 -53.7%

Full Fundamentals All metrics by year — income statement, balance sheet, cash flow

Income Statement 15
Annual Income Statement data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Revenue 10-point trend, -79.4% · · $237.0K $596.0K $1M $253.0K $460.0K $1M $1M $6M $36M $1M
SG&A Expense 12-point trend, +850.3% $159M $146M $69M $44M $30M $26M $21M $19M $19M $19M $18M $17M
Operating Expenses 12-point trend, +573.9% $252M $251M $194M $139M $115M $77M $73M $32M $30M $37M $37M $37M
Operating Income 12-point trend, -88.9% $-69M $-174M $-194M $-139M $-114M $-77M $-73M $-31M $-29M $-31M $-559.0K $-36M
Interest Expense 5-point trend, +2334.7% · $19M $8M $7M $4M $760.0K · · · · · ·
Interest Income 8-point trend, +457.3% $18M $20M $18M $3M $527.0K $2M $4M $3M · · · ·
Other Non-op 8-point trend, -228.9% $-375.0K $-236.0K $-23.0K $1M $1M $168.0K $-69.0K $-114.0K · · · ·
Pretax Income 4-point trend, +41.2% $-83M $-175M $-182M $-142M · · · · · · · ·
Income Tax 3-point trend, +240.9% $75.0K $449.0K $22.0K · · · · · · · · ·
Net Income 12-point trend, -134.1% $-84M $-175M $-184M $-142M $-116M $-76M $-69M $-27M $-28M $-30M $46.0K $-36M
EPS (Basic) 10-point trend, +43.5% $-0.13 $-0.27 $-0.32 $-0.37 $-0.35 $-0.28 · · $-0.18 $-0.19 $0.00 $-0.23
EPS (Diluted) 10-point trend, +43.5% $-0.13 $-0.27 $-0.32 $-0.37 $-0.35 $-0.28 · · $-0.18 $-0.19 $0.00 $-0.23
Shares (Basic) 10-point trend, +334.2% 666,662,989 646,033,247 570,645,405 380,784,846 327,631,814 271,460,265 · · 159,224,986 159,045,644 158,036,162 153,540,341
Shares (Diluted) 10-point trend, +334.2% 666,662,989 646,033,247 570,645,405 380,784,846 327,631,814 271,460,265 · · 159,224,986 159,045,644 162,663,894 153,540,341
EBITDA 12-point trend, -88.9% $-69M $-174M $-194M $-139M $-114M $-77M $-73M $-31M $-29M $-31M $-559.0K $-36M
Balance Sheet 24
Annual Balance Sheet data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Cash & Equivalents 12-point trend, +81.2% $78M $79M $70M $57M $35M $10M $14M $11M $16M $13M $21M $43M
Short-term Investments 4-point trend, -27.9% · · · · · · · · $78M $102M $93M $109M
Receivables 2-point trend, +2.9% $37M $36M · · · · · · · · · ·
Inventory 2-point trend, +201.3% $117M $39M · · · · · · · · · ·
Prepaid Expense 12-point trend, +526.4% $5M $5M $5M $4M $1M $2M $1M $1M $580.0K $524.0K $647.0K $736.0K
Current Assets 12-point trend, +239.1% $520M $491M $341M $180M $187M $200M $142M $166M $96M $116M $116M $153M
PP&E (Net) 12-point trend, +411.0% $884.0K $1M $1M $793.0K $650.0K $658.0K $408.0K $59.0K $102.0K $183.0K $207.0K $173.0K
PP&E (Gross) 12-point trend, +126.7% $3M $3M $2M $2M $1M $1M $1M $838.0K $822.0K $1M $1M $1M
Accum. Depreciation 12-point trend, +85.4% $2M $2M $1M $896.0K $650.0K $613.0K $843.0K $779.0K $720.0K $1M $1M $1M
Other Non-current Assets · · · · · · · $585.0K · · · ·
Total Assets 12-point trend, +230.7% $571M $594M $394M $191M $226M $271M $166M $185M $110M $130M $149M $173M
Accounts Payable 12-point trend, +989.7% $11M $9M $6M $10M $7M $7M $1M $982.0K $503.0K $225.0K $160.0K $1M
Accrued Liabilities 12-point trend, +3240.3% $51M $36M $40M $33M $30M $15M $8M $1M $926.0K $1M $1M $2M
Current Liabilities 12-point trend, +166.9% $112M $88M $108M $77M $46M $31M $28M $8M $7M $8M $7M $42M
Capital Leases 7-point trend, -34.3% $1M $2M $3M $4M $4M $5M $2M · · · · ·
Total Liabilities 7-point trend, +1035.2% $345M $313M $146M $111M $100M $60M $30M · · · · ·
Long-term Debt 2-point trend, +60.2% · · $82M $51M · · · · · · · ·
Total Debt 6-point trend, +397.2% $120M $118M $82M $51M $50M $24M · · · · · ·
Common Stock 12-point trend, +307.6% $640.0K $606.0K $545.0K $390.0K $324.0K $310.0K $200.0K $186.0K $160.0K $159.0K $159.0K $157.0K
Retained Earnings 12-point trend, -99.9% $-1.86B $-1.77B $-1.60B $-1.41B $-1.27B $-1.16B $-1.08B $-1.01B $-986M $-958M $-928M $-928M
AOCI 12-point trend, +420.2% $269.0K $261.0K $185.0K $-219.0K $-173.0K $78.0K $132.0K $-183.0K $-207.0K $-53.0K $-213.0K $-84.0K
Stockholders' Equity 12-point trend, +72.8% $226M $280M $248M $80M $126M $211M $135M $178M $104M $122M $142M $131M
Liabilities + Equity 12-point trend, +230.7% $571M $594M $394M $191M $226M $271M $166M $185M $110M $130M $149M $173M
Shares Outstanding 12-point trend, -99.6% 639,856 606,388,000 544,912,215 390,262,524 323,731,591 310,566,853 199,814,581 186,392,682 159,877,239 159,158,636 158,781,359 157,429,871
Cash Flow 15
Annual Cash Flow data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
D&A 7-point trend, +640.6% $474.0K $546.0K $442.0K $288.0K $215.0K $158.0K $64.0K · · · · ·
Stock-based Comp 12-point trend, +248.1% $27M $31M $19M $8M $8M $7M $6M $6M $8M $8M $8M $8M
Restructuring 4-point trend, +1204.1% $17M $0 $0 · · · · · · · $1M ·
Operating Cash Flow 12-point trend, -1287.6% $-111M $-219M $-168M $-127M $-96M $-67M $-44M $-21M $-21M $-18M $-24M $9M
CapEx 10-point trend, +419.1% · $680.0K $830.0K $431.0K $207.0K $401.0K $413.0K $16.0K · $57.0K $90.0K $131.0K
Investing Cash Flow 11-point trend, +146813.7% $107M $-106M $-180M $62M $72M $-105M $27M $-78M $23M $9M $73.0K ·
Debt Issued 5-point trend, -100.0% $0 $121M $30M · $25M $24M · · · · · ·
Net Debt Issued 5-point trend, -100.0% $0 $35M $30M · $25M $24M · · · · · ·
Stock Issued 8-point trend, -79.3% · · · · $20M $4M $19M $86M $1M $1M $3M $98M
Net Stock Activity 8-point trend, -79.3% · · · · $20M $4M $19M $86M $1M $1M $3M $98M
Dividends Paid Flat — no change across 2 periods · · · · · · · · · · $0 $0
Financing Cash Flow 11-point trend, -12.0% $2M $334M $362M $87M $49M $168M $19M $93M $1M $1M $3M ·
Net Change in Cash 8-point trend, +93.3% $-1M $10M $14M $22M $25M · · · $4M $-8M $-22M ·
Free Cash Flow 10-point trend, -2478.8% · $-219M $-169M $-128M $-96M $-67M $-44M $-21M · $-18M $-24M $9M
Levered FCF · $-238M · · · · · · · · · ·
Profitability 6
Annual Profitability data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Operating Margin 9-point trend, -5313725.3% · · -81832.9% -23246.6% -8183.7% -30400.4% -15762.0% -2914.9% -2746.9% -497.3% -1.5% ·
Net Margin 9-point trend, -59762192.3% · · -77690.7% -23808.9% -8335.4% -29888.1% -14901.7% -2534.4% -2621.2% -479.3% 0.13% ·
EBITDA Margin 9-point trend, -5313725.3% · · -81832.9% -23246.6% -8183.7% -30400.4% -15762.0% -2914.9% -2746.9% -497.3% -1.5% ·
ROA 12-point trend, +51.8% -14.3% -35.3% -63.0% -68.1% -46.8% -34.7% -39.1% -18.3% -23.2% -21.2% 0.03% -29.7%
ROE 12-point trend, +8.1% -34.4% -61.0% -68.4% -150.8% -83.5% -34.1% -47.7% -15.0% -24.7% -22.3% 0.03% -37.5%
ROIC 2-point trend, +54.5% -19.9% -43.7% · · · · · · · · · ·
Liquidity & Solvency 5
Annual Liquidity & Solvency data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Current Ratio 12-point trend, +27.1% 4.7 5.6 3.2 2.4 4.1 6.5 5.0 22.0 14.7 14.8 17.5 3.7
Quick Ratio 12-point trend, -71.7% 1.0 1.3 0.6 0.7 0.8 0.3 0.5 1.4 14.5 14.6 17.1 3.6
Debt / Equity 6-point trend, +364.3% 0.5 0.4 0.3 0.6 0.4 0.1 · · · · · ·
LT Debt / Equity 6-point trend, +364.3% 0.5 0.4 0.1 0.4 0.4 0.1 · · · · · ·
Interest Coverage 5-point trend, +90.7% · -9.4 -23.3 -20.1 -30.5 -101.2 · · · · · ·
Efficiency 1
Annual Efficiency data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Asset Turnover 9-point trend, -99.6% · · 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 ·
Per Share 5
Annual Per Share data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Book Value / Share 12-point trend, -57.5% $0.35 $0.46 $0.46 $0.20 $0.39 $0.68 $0.68 $0.95 $0.65 $0.77 $0.90 $0.83
Revenue / Share 5-point trend, -99.8% · · $0.00 $0.00 · · · · $0.01 $0.04 $0.22 ·
Cash Flow / Share 7-point trend, -12.0% $-0.17 $-0.34 $-0.29 $-0.33 · · · · $-0.13 $-0.12 $-0.15 ·
Cash / Share 12-point trend, -55.4% $0.12 $0.13 $0.13 $0.15 $0.11 $0.03 $0.07 $0.06 $0.10 $0.08 $0.13 $0.27
EPS (TTM) 10-point trend, +43.5% $-0.13 $-0.27 $-0.32 $-0.37 $-0.35 $-0.28 · · $-0.18 $-0.19 $0.00 $-0.23
Growth Rates 2
Annual Growth Rates data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Revenue YoY 3-point trend, -113.4% · · -60.2% -57.2% 450.6% · · · · · · ·
Revenue CAGR 3Y · · -2.1% · · · · · · · · ·
Valuation (TTM) 17
Annual Valuation (TTM) data for GERN
Metric Trend 202520242023202220212020201920182017201620152014
Revenue TTM 12-point trend, +14135.6% $164M $30M $237.0K $596.0K $1M $253.0K $460.0K $1M $1M $6M $36M $1M
Net Income TTM 12-point trend, -134.1% $-84M $-175M $-184M $-142M $-116M $-76M $-69M $-27M $-28M $-30M $46.0K $-36M
Market Cap 12-point trend, +65.1% $845M $2.15B $1.15B $944M $395M $494M $272M $186M $288M $329M $769M $512M
Enterprise Value 6-point trend, +74.6% $887M $2.19B $1.16B $939M $410M $508M · · · · · ·
P/E 9-point trend, +28.1% -10.2 -13.1 -6.6 -6.5 -3.5 -5.7 · · -10.0 -10.9 · -14.1
P/S 12-point trend, -98.8% 5.1 72.5 4851.3 1584.6 283.5 1951.8 590.8 174.9 270.2 53.5 21.1 443.8
P/B 12-point trend, -4.5% 3.7 7.7 4.6 11.8 3.1 2.3 2.0 1.0 2.8 2.7 5.4 3.9
P / Tangible Book 6-point trend, +59.7% 3.7 7.7 4.6 11.8 3.1 2.3 · · · · · ·
P / Cash Flow 12-point trend, -113.9% -7.6 -9.8 -6.9 -7.4 -4.1 -7.4 -6.2 -8.9 -14.0 -17.9 -31.8 54.7
P / FCF 10-point trend, -117.6% · -9.8 -6.8 -7.4 -4.1 -7.4 -6.1 -8.9 · -17.9 -31.6 55.5
EV / EBITDA 6-point trend, -95.8% -12.9 -12.6 -6.0 -6.8 -3.6 -6.6 · · · · · ·
EV / FCF 5-point trend, -31.6% · -10.0 -6.9 -7.3 -4.3 -7.6 · · · · · ·
EV / Revenue 6-point trend, -99.7% 5.4 73.8 4901.6 1575.1 294.3 2007.6 · · · · · ·
Dividend Yield Flat — no change across 2 periods · · · · · · · · · · 0.00% 0.00%
Earnings Yield 10-point trend, -39.1% -9.8% -7.6% -15.2% -15.3% -28.7% -17.6% · · -10.0% -9.2% 0.00% -7.1%
Payout Ratio Flat — no change across 2 periods · · · · · · · · · · 0.00% 0.00%
Annual Payout Flat — no change across 2 periods · · · · · · · · · · $0 $0

Financial Statements Income statement, balance sheet, cash flow — annual, last 5 years

Income Statement
2025-12-312024-12-312023-12-312022-12-312021-12-31
Revenue $237.0K$596.0K$1M
Operating Margin % -81832.9%-23246.6%-8183.7%
Net Income $-84M$-175M$-184M$-142M$-116M
Diluted EPS $-0.13$-0.27$-0.32$-0.37$-0.35
Balance Sheet
2025-12-312024-12-312023-12-312022-12-312021-12-31
Debt / Equity 0.50.40.30.60.4
Current Ratio 4.75.63.22.44.1
Quick Ratio 1.01.30.60.70.8
Cash Flow
2025-12-312024-12-312023-12-312022-12-312021-12-31
Free Cash Flow $-219M$-169M$-128M$-96M

Latest News Recent headlines mentioning this company

My Metrics Your personal watchlist — selected rows from Full Fundamentals

📊

Pick the metrics that matter to you — click the ➕ next to any row in Full Fundamentals above.

Your selection is saved and follows you across all tickers.

Institutional owners (13F) 278 filers · $499.6M total · As of June 30, 2026

Institutions that report holding this stock in their quarterly SEC Form 13F. Long positions only; a single filer may appear twice for separate option legs. Large offsetting put/call legs typically reflect market-making or hedged inventory, not directional conviction.

Institutional activity — Q2 2026 vs prior quarter
New positions Exited positions Increased Decreased Net shares change
45 (+14 vs prior Q) 29 (-8 vs prior Q) 87 (-1 vs prior Q) 64 (+5 vs prior Q) +12.8M

Compared to Q1 2026. SEC Form 13F filings are due within 45 days of quarter-end plus a short buffer for late filers — quarters still inside that window are skipped in favor of the most recent fully-reported pair.

Institution Value Shares % of tracked 13F Type
RA CAPITAL MANAGEMENT, L.P. $54,796,481 42,809,751 10.97% Shares
Soleus Capital Management, L.P. $54,795,084 42,808,659 10.97% Shares
STATE STREET CORP $45,896,539 35,856,671 9.19% Shares
VANGUARD CAPITAL MANAGEMENT LLC $34,880,275 27,250,215 6.98% Shares
CITADEL ADVISORS LLC $29,706,728 23,208,381 5.95% Shares
Clearbridge Investments, LLC $25,150,531 19,648,853 5.03% Shares
Eversept Partners, LP $23,958,300 18,717,422 4.80% Shares
GOLDMAN SACHS GROUP INC $20,398,367 15,936,224 4.08% Shares
GEODE CAPITAL MANAGEMENT, LLC $16,055,546 12,540,400 3.21% Shares
Nantahala Capital Management, LLC $15,648,000 12,225,000 3.13% Shares
VANGUARD PORTFOLIO MANAGEMENT LLC $13,840,125 10,812,598 2.77% Shares
Vivo Capital, LLC $11,099,900 8,671,797 2.22% Shares
MILLENNIUM MANAGEMENT LLC $10,383,702 8,112,267 2.08% Shares
Kynam Capital Management, LP $8,750,487 6,836,318 1.75% Shares
Candriam S.C.A. $7,147,270 5,589,182 1.43% Shares
FMR LLC $7,040,147 5,500,115 1.41% Shares
Pale Fire Capital SE $6,793,221 5,307,204 1.36% Shares
RENAISSANCE TECHNOLOGIES LLC $5,861,120 4,579,000 1.17% Shares
SEGALL BRYANT & HAMILL, LLC $5,741,509 4,485,554 1.15% Shares
TWO SIGMA INVESTMENTS, LP $5,514,257 4,308,013 1.10% Shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $5,484,367 4,284,662 1.10% Shares
TORONTO DOMINION BANK $5,420,800 4,235,000 1.09% Shares
Point72 Asset Management, L.P. $5,177,857 4,045,201 1.04% Shares
VANGUARD FIDUCIARY TRUST CO $5,073,361 3,963,563 1.02% Shares
Qube Research & Technologies Ltd $4,302,828 3,361,584 0.86% Shares
PANAGORA ASSET MANAGEMENT INC $3,762,520 2,939,469 0.75% Shares
BANK OF AMERICA CORP /DE/ $3,386,083 2,645,377 0.68% Shares
ExodusPoint Capital Management, LP $3,233,466 2,526,145 0.65% Shares
BNP PARIBAS FINANCIAL MARKETS $3,093,044 2,416,441 0.62% Shares
EDMOND DE ROTHSCHILD HOLDING S.A. $2,982,400 2,330,000 0.60% Shares
JANUS HENDERSON GROUP PLC $2,948,470 1,978,839 0.59% Shares
NAN FUNG TRINITY (HK) LTD $2,846,144 2,223,550 0.57% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,980,466 1,547,239 0.40% Shares
World Investment Advisors $1,540,331 1,033,779 0.31% Shares
MOORE CAPITAL MANAGEMENT, LP $1,525,684 1,191,941 0.31% Shares
Kodai Capital Management LP $1,420,015 893,091 0.28% Shares
Seven Fleet Capital Management LP $1,353,252 1,057,228 0.27% Shares
Virtus Investment Advisers, LLC $1,294,337 1,011,201 0.26% Shares
Voleon Capital Management LP $1,286,385 1,004,988 0.26% Shares
Swiss National Bank $1,233,920 964,000 0.25% Shares
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $1,098,343 737,143 0.22% Shares
CITIGROUP INC $1,016,225 793,926 0.20% Shares
RHUMBLINE ADVISERS $937,030 732,065 0.19% Shares
J. Goldman & Co LP $911,519 712,124 0.18% Shares
Man Group plc $891,736 696,669 0.18% Shares
ALLIANCEBERNSTEIN L.P. $852,013 571,821 0.17% Shares
SummitTX Capital, L.P. $840,991 657,024 0.17% Shares
ALPS ADVISORS INC $833,381 651,079 0.17% Shares
Exome Asset Management LLC $798,779 624,046 0.16% Shares
FRANKLIN RESOURCES INC $792,180 618,891 0.16% Shares
Rafferty Asset Management, LLC $776,243 606,440 0.16% Shares
Arax Advisory Partners $774,782 605,298 0.16% Shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP $760,704 594,300 0.15% Put option
AMERIPRISE FINANCIAL INC $740,238 578,311 0.15% Shares
Lion Point Capital, LP $739,840 578,000 0.15% Shares
Summit X, LLC $697,653 494,789 0.14% Shares
Bank of New York Mellon Corp $687,999 537,499 0.14% Shares
Squarepoint Ops LLC $684,110 534,461 0.14% Shares
Quadrature Capital Ltd $670,802 524,064 0.13% Shares
Nvest Financial, LLC $661,952 517,150 0.13% Shares
WELLS FARGO & COMPANY/MN $653,320 510,406 0.13% Shares
ADAR1 Capital Management, LLC $647,446 505,817 0.13% Shares
Private Advisor Group, LLC $643,686 502,878 0.13% Shares
BlackRock, Inc. $637,309 497,898 0.13% Shares
Verdad Advisers, LP $632,577 494,201 0.13% Shares
XTX Topco Ltd $593,788 463,897 0.12% Shares
CITADEL ADVISORS LLC $549,760 429,500 0.11% Put option
TWO SIGMA ADVISERS, LP $481,861 365,046 0.10% Shares
MetLife Investment Management, LLC $419,818 327,983 0.08% Shares
RAYMOND JAMES FINANCIAL INC $418,721 327,126 0.08% Shares
VANGUARD GROUP INC $413,314 313,117 0.08% Shares
VANGUARD ASSET MANAGEMENT, Ltd $400,790 313,117 0.08% Shares
PROFUND ADVISORS LLC $392,430 306,586 0.08% Shares
MOODY NATIONAL BANK TRUST DIVISION $380,421 297,204 0.08% Shares
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $329,782 257,642 0.07% Shares
MML INVESTORS SERVICES, LLC $317,320 247,906 0.06% Shares
Mitsubishi UFJ Trust & Banking Corp $288,758 225,592 0.06% Shares
Invesco Ltd. $284,978 222,639 0.06% Shares
Vanguard Global Advisers, LLC $281,386 219,833 0.06% Shares
DIVERSIFIED TRUST CO $279,718 218,530 0.06% Shares
ALLSTATE CORP $269,037 210,185 0.05% Shares
STATE OF WISCONSIN INVESTMENT BOARD $268,279 209,593 0.05% Shares
Mason & Associates Inc $256,399 200,312 0.05% Shares
Verition Fund Management LLC $256,000 200,000 0.05% Call option
Cresset Asset Management, LLC $255,625 199,707 0.05% Shares
JANE STREET GROUP, LLC $246,912 192,900 0.05% Call option
ProShare Advisors LLC $241,398 188,592 0.05% Shares
LPL Financial LLC $233,494 182,417 0.05% Shares
Verition Fund Management LLC $222,322 173,689 0.04% Shares
NEW YORK STATE COMMON RETIREMENT FUND $219,460 171,453 0.04% Shares
Headlands Technologies LLC $204,202 159,533 0.04% Shares
State of New Jersey Common Pension Fund D $198,830 155,336 0.04% Shares
LOS ANGELES CAPITAL MANAGEMENT LLC $197,696 154,450 0.04% Shares
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $196,643 131,975 0.04% Shares
Police & Firemen's Retirement System of New Jersey $196,315 153,371 0.04% Shares
MANUFACTURERS LIFE INSURANCE COMPANY, THE $190,601 148,907 0.04% Shares
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM $181,916 142,122 0.04% Shares
EntryPoint Capital, LLC $176,184 137,644 0.04% Shares
INTECH INVESTMENT MANAGEMENT LLC $175,196 136,872 0.04% Shares
Schonfeld Strategic Advisors LLC $173,246 135,350 0.03% Shares

Company insiders 46 insiders · 27 officers · 21 directors

Insider Role Last activity Shares owned Buys 12m Sells 12m Net 12m
Harout Semerjian President and CEO Aug. 7, 2025 A 0 0 $0
Dawn Carter Bir Interim President and CEO May 21, 2025 A 0 0 $0
John A Scarlett Chairman, President and CEO Feb. 27, 2025 P 12,500 0 0 $0
David Greenwood President, Interim CEO, CFO June 14, 2011 S 754,031 0 0 $0
Thomas Okarma President and CEO July 9, 2010 A 774,560 0 0 $0
Michelle Robertson EVP, Chief Financial Officer Feb. 18, 2025 A 0 0 $0
Olivia Kyusuk Bloom EVP, Chief Financial Officer Aug. 15, 2023 A 74,588 0 0 $0
Graham K Cooper EVP, Bus Dev & CFO May 17, 2012 A 0 0 $0
Alan Colowick President, Oncology Jan. 2, 2008 I 3,028 0 0 $0
Andrew J Grethlein EVP, Chief Operating Officer Feb. 18, 2025 A 0 0 0 $0
James Ziegler EVP, Chief Commercial Officer Feb. 27, 2025 P 100,000 0 0 $0
Scott Alan Samuels EVP, Chief Legal Officer Feb. 27, 2025 P 26,682 0 0 $0
Joseph Eid EVP, Research and Development Nov. 11, 2024 A 0 0 $0
Faye Feller EVP, Chief Medical Officer June 10, 2024 M 0 0 0 $0
Anil Kapur EVP, Corp Strategy & CCO June 10, 2024 M 0 0 0 $0
Aleksandra Rizo EVP, Chief Medical Officer Feb. 16, 2022 A 0 0 $0
Stephen Rosenfield EVP, Chief Legal Off & Sec Feb. 16, 2022 A 0 0 0 $0
Melissa Kelly Behrs EVP, Chief Business Officer Feb. 2, 2021 A 0 0 0 $0
Craig C Parker EVP, Corp Dev & Sci Affairs Feb. 10, 2014 A 0 0 $0
Stephen Michael Kelsey EVP, R&D, Chief Med Officer May 3, 2013 D 62,272 0 0 $0
David Earp SVP, Corp Transactions May 30, 2012 S 467,406 0 0 $0
Katharine E. Spink SVP Alliance Mgmt & Operations June 14, 2011 S 328,561 0 0 $0
Jane Lebkowski SVP, Chief Scientific Officer June 14, 2011 S 568,154 0 0 $0
Melanie I Nallicheri SVP Corp Dev May 20, 2011 A 195,000 0 0 $0
Fabio M Benedetti SVP, Chief Med Off, Oncology May 29, 2009 A 80,560 0 0 $0
Calvin Harley VP, CSO Telomerase Tech May 29, 2009 A 134,036 0 0 $0
William Stempel VP and General Counsel May 27, 2004 A 6,521 0 0 $0
Robert J. Spiegel Director June 30, 2026 A 205,810 0 0 $0
John F Mcdonald Director May 21, 2025 A 0 0 $0
Elizabeth G. O'Farrell Director May 21, 2025 A 26,220 0 0 $0
Susan Molineaux Director May 21, 2025 A 130,527 0 0 $0
Gaurav Aggarwal Director May 21, 2025 A 1,970 0 0 $0
Bryan V Lawlis Director May 21, 2025 A 13,300 0 0 $0
Karin Eastham Director Jan. 13, 2023 M 109,047 0 0 $0
Daniel Bradbury Director March 29, 2019 A 51,323 0 0 $0
Hoyoung Huh Director May 15, 2018 A 154,301 0 0 $0
Thomas Hofstaetter Director March 18, 2015 M 26,564 0 0 $0
Thomas Kiley Director May 22, 2013 D 171,911 0 0 $0
Edward V Fritzky Director May 22, 2013 D 186,511 0 0 $0
Alexander E Barkas Director May 20, 2011 A 353,122 0 0 $0
Charles J Homcy Director May 11, 2011 A 62,751 0 0 $0
ZENNER PATRICK J Director May 19, 2010 A 73,710 0 0 $0
John Peter Walker Director Jan. 30, 2009 M 39,119 0 0 $0
Robert B Stein Director Sept. 23, 2003 M 0 0 0 $0
GERON CORP 10% owner May 28, 2014 J 0 0 0 $0
MERIX BIOSCIENCE INC 10% owner Aug. 16, 2004 S 4,541,100 0 0 $0

Insiders from SEC Form 3/4/5 filings; net = open-market P/S only

Activists & 5%+ owners 3 positions

Investors who filed SEC Schedule 13D — beneficial ownership above 5% with an intent to influence the issuer (activist stakes, board campaigns, M&A). Each row shows the most recent known state of that filer's position.

Filer Filed Stake Status Purpose Filing
Feb. 3, 2023 Initial filing SEC
Growth Equity Opportunities 17, LLC, New Enterprise Associates 17, L.P., NEA Partners 17, L.P., NEA 17 GP, LLC, Forest Baskett, Ali Behbahani, Carmen Chang, Anthony A. Florence, Jr., Liza Landsman, Mohamad H. Makhzoumi, Joshua Makower, Edward T. Mathers, Scott D. Sandell, Peter W. Sonsini, Paul Walker, Rick Yang June 4, 2020 Initial filing Passive investment SEC
G ERON C ORPORATION ×3 filings Aug. 19, 2014 Initial filing SEC

Purpose is an automated classification of the filer's own stated purpose (SEC Item 4) — not investment advice. "—" means no clear purpose was stated or the text could not be classified.

ETF ownership Held by 34 ETFs

Weight reflects direct equity holdings (N-PORT) only; leveraged or derivative-based funds may hold additional swap exposure not shown.

Fund Weight Units As of Source
BBP · ETFis Series Trust I 1.81% 695,861 NS April 30, 2026 N-PORT
JSML · Janus Detroit Street Trust 0.90% 1,855,332 NS April 30, 2026 N-PORT
QQQS · Invesco Exchange-Traded Fund Trust … 0.59% 89,564 SH Aug. 8, 2026 Daily
SBIO · ALPS ETF Trust 0.51% 660,249 NS May 31, 2026 N-PORT
LABU · Direxion Shares ETF Trust 0.28% 951,040 NS April 30, 2026 N-PORT
ESSC · Strategy Shares 0.16% 27,159 NS April 30, 2026 N-PORT
IBB · iShares Trust 0.08% 4,640,147 SH Aug. 8, 2026 Daily
IBBQ · Invesco Exchange-Traded Fund Trust … 0.06% 34,910 SH Aug. 8, 2026 Daily
IWO · iShares Trust 0.05% 5,015,982 SH Aug. 8, 2026 Daily
BIB · ProShares Trust 0.04% 23,602 NS May 31, 2026 N-PORT
VTWG · VANGUARD SCOTTSDALE FUNDS 0.04% 599,922 SH Aug. 8, 2026 Daily
PRFZ · Invesco Exchange-Traded Fund Trust 0.04% 746,454 SH Aug. 8, 2026 Daily
IWM · iShares Trust 0.03% 14,185,178 SH Aug. 8, 2026 Daily
RSSL · Global X Funds 0.03% 236,763 NS April 30, 2026 N-PORT
ISCV · iShares Trust 0.02% 107,848 SH Aug. 8, 2026 Daily
VTWO · VANGUARD SCOTTSDALE FUNDS 0.02% 3,218,859 SH Aug. 8, 2026 Daily
ITWO · ProShares Trust 0.02% 25,707 NS May 31, 2026 N-PORT
SCHA · SCHWAB STRATEGIC TRUST 0.01% 2,555,103 NS May 31, 2026 N-PORT
FHLC · FIDELITY COVINGTON TRUST 0.01% 230,599 NS April 30, 2026 N-PORT
ISCB · iShares Trust 0.01% 21,772 SH Aug. 8, 2026 Daily
TILT · FlexShares Trust 0.01% 144,298 NS April 30, 2026 N-PORT
UWM · ProShares Trust 0.01% 20,105 NS May 31, 2026 N-PORT
VXF · VANGUARD INDEX FUNDS 0.01% 6,164,114 SH Aug. 8, 2026 Daily
VHT · VANGUARD WORLD FUND 0.01% 1,437,897 SH Aug. 8, 2026 Daily
WSML · iShares Trust 0.01% 33,951 SH Aug. 8, 2026 Daily
URTY · ProShares Trust 0.01% 20,335 NS May 31, 2026 N-PORT
ONEQ · Fidelity Commonwealth Trust 0.00% 348,551 NS May 31, 2026 N-PORT
MSSM · MORGAN STANLEY PATHWAY FUNDS 0.00% 23,306 NS May 31, 2026 N-PORT
HDG · ProShares Trust 0.00% 511 NS May 31, 2026 N-PORT
IWV · iShares Trust 0.00% 167,980 SH Aug. 8, 2026 Daily
ITOT · iShares Trust 0.00% 726,029 SH Aug. 8, 2026 Daily
SCHB · SCHWAB STRATEGIC TRUST 0.00% 317,140 NS May 31, 2026 N-PORT
VTI · VANGUARD INDEX FUNDS 0.00% 20,449,234 SH Aug. 8, 2026 Daily
VTHR · VANGUARD SCOTTSDALE FUNDS 0.00% 41,165 SH Aug. 8, 2026 Daily