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Geron

US · GERN #3440 by market cap
1.20 -0.01 -0.83%
Live - 5344 symbols - heartbeat 311s ago · 2026-10-08 08:45
Pre-market 1.19 -0.77%
After-hours 1.20 0.00%
Overnight 1.21 +0.83%
Market cap
770.97M
P/B
3.53
EPS
-0.13
Reader sentiment Are you bullish or bearish on GERN?

Anonymous reader poll. Unscientific, not investment advice.

✦ Quant Ownership Signal how this is computed

Mixed / stable
  • Total institutional ownership (as a % of shares) was little changed.

Institutional ownership

Held by institutions
74.84% +0.01pp
Institutions
291
As of
2026/Q3 vs. prior period

Ownership vs. money flow

Diverging

Institutions added shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.

Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.

Holder types

Mutual Fund35.68%
Hedge Fund22.30%
VC/PE Fund9.19%
Public Company6.12%
Private Company0.91%
Insurance Company0.30%
Government Pension Fund0.27%
Other25.08%

Top holders as of 2026-06-30

BlackRock 7.64% · 49.12M sh
RA Capital Management, L.P. 6.66% · 42.81M sh
Soleus Capital Management, L.P. 6.66% · 42.81M sh
State Street Global Advisors 5.58% · 35.86M sh
Vanguard Capital Management, LLC 4.86% · 31.21M sh
Citadel Advisors LLC 4.52% · 29.04M sh
ClearBridge Investments, LLC 3.06% · 19.65M sh
Eversept Partners, L.P. 2.91% · 18.72M sh
The Goldman Sachs Group, Inc. 2.48% · 15.94M sh
Geode Capital Management, LLC 2.27% · 14.56M sh

Bar length is relative to the largest holder shown here, not to 100% of the company.

Insiders

50 filings tracked · 46 buys · 3 sells

NameRoleStake
Robert Jay Spiegel Independent Director 0.03%
Susan Molineaux Independent Director 0.02%
James Ziegler Executive Vice President 0.02%
Elizabeth O'Farrell Lead Independent Director 0.01%
Scott Samuels Executive Vice President 0.00%
Michelle Robertson Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer 0.00%
V. Lawlis Independent Director 0.00%
Ahmed ElNawawi Executive Vice President 0.00%
Gaurav Aggarwal Director --
Joseph Eiden -- --

Insider transactions most recent Form 4 filings

DateNameRoleTypeSharesPrice
2026-09-29 Robert Jay Spiegel Independent Director Other Acquisition +6,351 $1.23
2026-06-29 Robert Jay Spiegel Independent Director Other Acquisition +6,103 $1.28
2026-05-19 Elizabeth O'Farrell Lead Independent Director Other Derivative Acquisition +220,000 $1.26
2026-05-19 Robert Jay Spiegel Independent Director Other Derivative Acquisition +220,000 $1.26
2026-05-19 Susan Molineaux Independent Director Other Derivative Acquisition +220,000 $1.26
2026-05-19 John McDonald Independent Director Other Derivative Acquisition +220,000 $1.26
2026-05-19 Dawn Bir Independent Director Other Derivative Acquisition +220,000 $1.26
2026-04-12 Timothy Williams Executive Vice President Other Derivative Acquisition +2,500,000 $1.73
2026-03-30 Robert Jay Spiegel Independent Director Other Acquisition +5,243 $1.49
2026-03-24 Patricia Susan Andrews Director Other Derivative Acquisition +270,000 $1.57
2026-03-24 Constantine Chinoporos Director Other Derivative Acquisition +270,000 $1.57
2026-02-17 Michelle Robertson Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer Derivative Exercise and Sale -9,855 $1.94
2026-02-17 Michelle Robertson Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer Derivative Exercise and Retained +17,645 --
2026-02-16 Joseph Eiden -- Other Derivative Acquisition +2,220,000 $1.80
2026-02-16 Michelle Robertson Executive VP, CFO, Treasurer and Principal Financial & Accounting Officer Other Derivative Acquisition +1,660,000 $1.80
2025-12-30 Robert Jay Spiegel Independent Director Other Acquisition +5,918 $1.32
2025-12-14 James Ziegler Executive Vice President Intent to Sell (Form 144) -20,000 $1.37
2025-10-19 Ahmed ElNawawi Executive Vice President Other Derivative Acquisition +3,000,000 $1.27
2025-10-19 Ahmed ElNawawi Executive Vice President Initial Statement of Beneficial 0 --
2025-09-29 Robert Jay Spiegel Independent Director Other Acquisition +5,702 $1.37

Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.

Quote time 2026-10-08 08:45:12 · For reference only, not investment advice and not tailored to your situation.