Geron

GERN • NASDAQ

Geron is a biotechnology company in the healthcare sector on NASDAQ, led by Harout Semerjian, with a market cap of $868.2M. As of Q3 2025, 79% of shares are held by 252 institutional investors, with RA CAPITAL MANAGEMENT, LLC as the largest holder at 9.46%.

President and Chief Executive OfficerHarout Semerjian

Market Cap$868.2M

Biotechnology

Healthcare

Employees141.0

Websitegeron.com

Country

United States of America

Overview

Overview of institutional ownership in GERN as of Q3 2025 with a market cap of $874.1M

All Institutions

Institutions: 252
Value Held: $694.5M
Shares Held: 506.9M
Avg Position: $2.8M
Median Position: $96.5K

Hedge Funds

Hedge Funds: 34
Value Held: $295.6M
Shares Held: 215.7M
Avg Position: $8.7M
Median Position: $1.6M

Ownership Breakdown

Institutional (non-HF)

45.64%

$398.9M

Hedge Funds

33.81%

$295.6M

Retail & Other

20.54%

$179.6M

Based on market cap of $874.1M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in GERN as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
RA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Michael Saulnier CFO	$82.7M 1.03% of portfolio	9.46% 60.4M shares	Q2 2020 Held for 5y 5m	$8.1B
B BlackRock, Inc. Institution	-	$63.8M 0.00% of portfolio	7.30% 46.6M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
Deep Track Capital, LP Hedge Fund•Long/Short	David Eric Kroin CIO	$56.3M 1.60% of portfolio	6.44% 41.1M shares	Q4 2022 Held for 2y 11m	$3.5B
VANGUARD GROUP INC Institution	Salim Ramji CEO	$47.2M 0.00% of portfolio	5.40% 34.4M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
Vivo Capital, LLC Venture Capital	Jack Bech Nielsen Managing Partner	$37.3M 3.00% of portfolio	4.27% 27.2M shares	Q1 2022 Held for 3y 8m	$1.2B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$36.5M 0.00% of portfolio	4.17% 26.6M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
GOLDMAN SACHS GROUP INC Institution	David M. Solomon CEO	$29.2M 0.00% of portfolio	3.34% 21.3M shares	≤ Q2 2013 Held for 12y 5m+	$691.34B
Soleus Capital Management, L.P. Hedge Fund•Long/Short	Guy Bezalel Levy CIO	$23.7M 1.29% of portfolio	2.71% 17.3M shares	Q1 2025 Held for 8 months	$1.8B
Vestal Point Capital, LP Hedge Fund•Long/Short	Ryan Christopher Wilder CIO	$23.6M 1.20% of portfolio	2.70% 17.2M shares	Q1 2024 Held for 1y 8m	$2.0B
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	Kenneth Cordele Griffin CEO	$21.5M 0.02% of portfolio	2.46% 15.7M shares	≤ Q2 2013 Held for 12y 5m+	$122.08B

Net Capital Flow

Institutional buying and selling activity for GERN in Q3 2025

Traded: −$8.2M
Buyers: 106
Sellers: 112
Total Bought: +$80.4M
Total Sold: −$88.6M
Avg Position: $2.5M

Biggest Buyers

Institution	Net Bought	Current Position
GOLDMAN SACHS GROUP INC Institution	+$15.7M +11.5M shares	$29.2M 21.3M shares
N Nantahala Capital Management, LLC Hedge Fund•Multi-Strategy	+$12.4M +9.0M shares	$12.4M 9.0M shares
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	+$7.3M +5.3M shares	$15.6M 11.4M shares
Eversept Partners, LLC Hedge Fund•Long/Short	+$7.2M +5.3M shares	$17.3M 12.6M shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	+$5.0M +3.7M shares	$21.5M 15.7M shares
STATE STREET CORP Institution	+$4.1M +3.0M shares	$36.5M 26.6M shares
FMR LLC Institution	+$3.9M +2.9M shares	$10.6M 7.7M shares
P Pale Fire Capital SE Institution	+$3.1M +2.3M shares	$3.1M 2.3M shares
J JANE STREET GROUP, LLC Institution	+$2.9M +2.1M shares	$2.9M 2.1M shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$2.5M +1.9M shares	$2.5M 1.9M shares

Biggest Sellers

Institution	Net Sold	Current Position
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	−$13.5M −9.6M shares	Sold Off 0 shares
StemPoint Capital LP Hedge Fund•Long/Short	−$9.4M −6.6M shares	Sold Off 0 shares
Vestal Point Capital, LP Hedge Fund•Long/Short	−$9.0M −6.6M shares	$23.6M 17.2M shares
UBS Group AG Institution	−$5.5M −4.0M shares	$10.6M 7.7M shares
B BlackRock, Inc. Institution	−$4.7M −3.4M shares	$63.8M 46.6M shares
Ally Bridge Group LLC Hedge Fund•Sector	−$4.6M −3.3M shares	Sold Off 0 shares
BANK OF AMERICA CORP /DE/ Institution	−$4.0M −2.9M shares	$4.8M 3.5M shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	−$3.6M −2.6M shares	$3.2M 2.4M shares
MORGAN STANLEY RIA/Wealth	−$3.6M −2.6M shares	$14.7M 10.7M shares
Woodline Partners LP Hedge Fund•Long/Short	−$2.9M −2.1M shares	$8.1M 5.9M shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited GERN in Q3 2025

New Positions: 14
New Value: $17.4M
Exited Positions: 28
Exited Value: $36.2M

New Positions

Institution	Position Value
N Nantahala Capital Management, LLC Hedge Fund•Multi-Strategy	$12.4M 9.0M shares
P Pale Fire Capital SE Institution	$3.1M 2.3M shares
Almitas Capital LLC RIA/Wealth	$1.3M 946.3K shares
E Empire Financial Management Company, LLC RIA/Wealth	$506.9K 370.0K shares
Forefront Wealth Partners, LLC RIA/Wealth	$71.6K 52.3K shares
LCM Capital Management Inc RIA/Wealth	$17.0K 12.4K shares
Axim Planning & Wealth RIA/Wealth	$14.5K 10.6K shares
O Onyx Bridge Wealth Group LLC RIA/Wealth	$13.7K 10.0K shares
V Virtue Capital Management, LLC RIA/Wealth	$13.7K 10.0K shares
Sunbelt Securities, Inc. RIA/Wealth	$5.7K 4.2K shares

Exited Positions

Institution	Previous Position
Point72 Asset Management, L.P. Hedge Fund•Multi-Strategy	$13.5M 9.6M shares
StemPoint Capital LP Hedge Fund•Long/Short	$9.4M 6.6M shares
Ally Bridge Group LLC Hedge Fund•Sector	$4.6M 3.3M shares
Ikarian Capital, LLC Hedge Fund•Event Driven	$2.3M 1.6M shares
BALYASNY ASSET MANAGEMENT LLC Hedge Fund•Multi-Strategy	$2.2M 1.6M shares
Centiva Capital, LP Hedge Fund•Multi-Strategy	$1.1M 800.0K shares
C CANTOR FITZGERALD, L. P. Institution	$812.8K 576.4K shares
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds	$806.5K 572.0K shares
Graham Capital Management, L.P. Hedge Fund•Multi-Strategy	$555.5K 394.0K shares
WELLINGTON MANAGEMENT CO LLP Long Only Manager	$351.8K 249.5K shares

Options Activity

Institutions with the largest Call and Put options positions in GERN as of Q3 2025

Call Positions: 5
Call Value: $875.8K
Put Positions: 4
Put Value: $371.8K

Call Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$558.5K 4.1K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$124.1K 906.0 contracts
W WOLVERINE TRADING, LLC Institution	$106.5K 813.0 contracts
J JANE STREET GROUP, LLC Institution	$86.6K 632.0 contracts
StemPoint Capital LP Hedge Fund•Long/Short	- - contracts

Put Positions

Institution	Position Value
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$231.7K 1.7K contracts
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$137.0K 1.0K contracts
HighTower Advisors, LLC RIA/Wealth	$3.2K 70.0 contracts
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy	- - contracts

Most Committed Institutions

Institutions with GERN as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
L Lion Point Capital, LP Hedge Fund•Event Driven	Carl Didric Marcus Cederholm CIO	3.89% $685.0K	0.08% 500.0K shares	Q1 2024 Held for 1y 8m	$17.6M
Vivo Capital, LLC Venture Capital	Jack Bech Nielsen Managing Partner	3.00% $37.3M	4.27% 27.2M shares	Q1 2022 Held for 3y 8m	$1.2B
S Stonepine Capital Management, LLC Institution	-	1.78% $2.2M	0.25% 1.6M shares	Q1 2025 Held for 8 months	$123.0M
Exome Asset Management LLC Hedge Fund•Sector	Alex R Forschner President	1.72% $2.5M	0.29% 1.9M shares	Q4 2023 Held for 1y 11m	$148.0M
Deep Track Capital, LP Hedge Fund•Long/Short	David Eric Kroin CIO	1.60% $56.3M	6.44% 41.1M shares	Q4 2022 Held for 2y 11m	$3.5B
Eversept Partners, LLC Hedge Fund•Long/Short	Rishi Rasesh Shah President	1.32% $17.3M	1.97% 12.6M shares	Q2 2025 Held for 5 months	$1.3B
Soleus Capital Management, L.P. Hedge Fund•Long/Short	Guy Bezalel Levy CIO	1.29% $23.7M	2.71% 17.3M shares	Q1 2025 Held for 8 months	$1.8B
Vestal Point Capital, LP Hedge Fund•Long/Short	Ryan Christopher Wilder CIO	1.20% $23.6M	2.70% 17.2M shares	Q1 2024 Held for 1y 8m	$2.0B
RA CAPITAL MANAGEMENT, LLC Hedge Fund•Long/Short	Michael Saulnier CFO	1.03% $82.7M	9.46% 60.4M shares	Q2 2020 Held for 5y 5m	$8.1B
N Nantahala Capital Management, LLC Hedge Fund•Multi-Strategy	Daniel J. Mack Managing Partner	0.77% $12.4M	1.41% 9.0M shares	Q3 2025 Held for 2 months	$1.6B