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Disclosery

GERN GERON CORP

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COM (common), issuer CIK 886744

249 managers (260 13F filers) reported a position in GERN shares at 2026-06-30, 476,664,235 shares in all. 34 filers opened a position and 30 filers sold out during the quarter.

Managers
249
13F filers
260
New
34
Added
96
Reduced
62
Sold out
30
Shares held by filers
476,664,235

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.49,115,571$62.9M<0.01%+1,795,79213F-HRTimelineGroup
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.42,809,751$54.8M0.48%-20,961,61513F-HRTimelineGroup
Soleus Capital Management, L.P.42,808,659$54.8M1.89%+1,300,00013F-HRTimeline
VANGUARD GROUP INCgroup of 7 filers holding42,754,362$54.7M+6,868,675Timeline
STATE STREET CORPin group STATE STREET CORP35,856,671$45.9M<0.01%+5,359,48813F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC29,038,928$37.2M0.02%+7,462,35913F-HRTimelineGroup
Franklin Resourcesgroup of 2 filers holding20,267,744$25.9M+616,663Timeline
Eversept Partners, LP18,717,422$24M1.31%-117,46113F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC16,633,368$21.3M<0.01%+5,456,77713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC14,555,954$18.6M<0.01%+885,16913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY12,945,431$16.6M<0.01%+280,31213F-HRTimelineGroup
Nantahala Capital Management, LLC12,225,000$15.6M0.95%+1,000,00013F-HR/ATimeline
Vivo Capital, LLC8,671,797$11.1M1.01%013F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC8,112,267$10.4M0.01%+790,74513F-HRTimelineGroup
Kynam Capital Management, LP6,836,318$8.75M0.48%013F-HRTimeline
UBS Group AGgroup of 2 filers holding5,879,794$7.53M+915,447Timeline
Candriam S.C.A.5,589,182$7.15M0.03%+1,667,70613F-HRTimeline
FMR LLCin group FMR LLC5,502,807$7.04M<0.01%-1,094,34913F-HRTimelineGroup
Pale Fire Capital SEin group Pale Fire Capital5,307,204$6.79M0.48%+418,90013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP5,032,212$6.44M<0.01%+169,94813F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC4,579,000$5.86M0.01%+2,779,47913F-HRTimeline
SEGALL BRYANT & HAMILL, LLC4,485,554$5.74M0.07%-254,49413F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP4,308,013$5.51M<0.01%+2,418,54513F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co4,284,662$5.48M<0.01%-198,71413F-HRTimelineGroup
TORONTO DOMINION BANKin group TORONTO DOMINION BANK4,235,000$5.42M0.01%+4,107,28913F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.4,045,201$5.18M0.01%-16,411,93313F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/3,534,234$4.52M<0.01%-1,022,04413F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\3,439,976$4.4M<0.01%-1,763,54013F-HRTimelineGroup
Qube Research & Technologies Ltd3,361,584$4.3M<0.01%+1,915,72513F-HRTimeline
PANAGORA ASSET MANAGEMENT INC2,939,469$3.76M0.01%+2,578,62413F-HRTimeline
ExodusPoint Capital Management, LP2,526,145$3.23M0.03%+2,514,15813F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS2,416,441$3.09M<0.01%+1,989,74313F-HRTimelineGroup
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …2,330,000$2.98M0.04%013F-HRTimelineGroup
NAN FUNG TRINITY (HK) LTD2,223,550$2.85M0.28%+850,00013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp1,618,246$2.07M<0.01%+78,01013F-HRTimelineGroup
TIAAgroup of 2 filers holding1,604,726$2.05M-1,385,013Timeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…1,547,239$1.98M<0.01%+297,22213F-HRTimelineGroup
World Investment Advisors1,033,779$1.54M0.03%013F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP1,191,941$1.53M0.03%new13F-HRTimeline
Invesco Ltd.in group Invesco Ltd.1,175,208$1.5M<0.01%-129,25013F-HRTimelineGroup
Seven Fleet Capital Management LP1,057,228$1.35M0.22%+633,04813F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…1,011,201$1.29M0.3%+390,40613F-HRTimelineGroup
Voleon Capital Management LP1,004,988$1.29M0.02%+882,37613F-HRTimeline
Hennion & Walsh Asset Management, Inc.1,000,910$1.28M0.04%+604,27813F-HRTimeline
Swiss National Bank964,000$1.23M<0.01%+16,50013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC826,216$1.06M<0.01%+192,71513F-HRTimelineGroup
RHUMBLINE ADVISERS732,065$937K<0.01%+31,96413F-HRTimeline
J. Goldman & Co LP712,124$912K0.03%+101,46513F-HRTimeline
Man Group plcin group Man Group plc696,669$892K<0.01%+299,76113F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.571,821$852K<0.01%+16,12013F-HRTimeline
SummitTX Capital, L.P.657,024$841K0.02%new13F-HRTimeline
ALPS ADVISORS INC651,079$833K<0.01%+129,64013F-HRTimeline
Exome Asset Management LLC624,046$799K0.49%new13F-HRTimeline
Rafferty Asset Management, LLC606,440$776K<0.01%-277,15513F-HRTimeline
Arax Advisory Partners605,298$775K0.01%+493,87013F-HRTimeline
GSA CAPITAL PARTNERS LLP588,165$753K0.05%+329,75113F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC578,321$740K<0.01%-72,86413F-HRTimelineGroup
Lion Point Capital, LP578,000$740K3.54%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN558,500$715K<0.01%+97,77113F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…542,133$694K<0.01%-195,01013F-HR/ATimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC534,461$684K<0.01%new13F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC525,963$673K0.03%+176,33613F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd524,064$671K0.01%+291,73213F-HRTimelineGroup
Nvest Financial, LLC517,150$662K0.21%+8,67613F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC505,817$647K0.03%+305,81713F-HRTimelineGroup
Private Advisor Group, LLC502,878$644K<0.01%+79,55013F-HRTimeline
Verdad Advisers, LP494,201$633K0.61%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd463,897$594K0.01%-497,26213F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/459,584$589K<0.01%+69,56813F-HRTimeline
SG Americas Securities, LLC381,115$488K<0.01%+102,03213F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding356,780$458K+4,675Timeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC340,638$436K<0.01%+49,85813F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…327,983$420K<0.01%+77,32113F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc309,547$396K<0.01%+12,70613F-HRTimelineGroup
PROFUND ADVISORS LLC306,586$392K0.01%-88,32313F-HRTimeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…297,204$380K0.03%+1,77913F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO289,524$376K<0.01%-2,31413F-HRTimelineGroup
MML INVESTORS SERVICES, LLC247,906$317K<0.01%new13F-HRTimeline
Jupiter Topco LLCin group Janus Henderson239,357$305K<0.01%13F-HRTimelineGroup
Mitsubishi UFJ Trust & Banking Corpgroup of 2 filers holding227,033$291K+225,592Timeline
DIVERSIFIED TRUST CO218,530$280K<0.01%new13F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP210,185$269K<0.01%new13F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD209,593$268K<0.01%+6,06713F-HRTimeline
Mason & Associates Inc200,312$256K0.04%+79,61213F-HRTimeline
Cresset Asset Management, LLC199,707$256K<0.01%+5,24313F-HRTimeline
ProShare Advisors LLC188,592$241K<0.01%+80,86113F-HRTimeline
LPL Financial LLC182,417$233K<0.01%+32,56013F-HRTimeline
Verition Fund Management LLC173,689$222K<0.01%new13F-HR/ATimeline
NEW YORK STATE COMMON RETIREMENT FUND171,453$219K<0.01%013F-HRTimeline
Creative Planningin group Creative Planning166,015$212K<0.01%-54,58913F-HRTimelineGroup
Headlands Technologies LLC159,533$204K0.02%+140,73813F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…155,336$199K<0.01%-8,28613F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC154,450$198K<0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…153,940$197K<0.01%+104,89313F-HRTimelineGroup
Police & Firemen's Retirement System of…153,371$196K<0.01%013F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …148,907$191K<0.01%+23813F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…142,122$182K<0.01%013F-HRTimeline
EntryPoint Capital, LLC137,644$176K0.04%+38,57013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC136,872$175K<0.01%-6,64113F-HRTimeline
Schonfeld Strategic Advisors LLC135,350$173K<0.01%+111,24813F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM132,559$170K<0.01%+1,05213F-HRTimeline
Amundiin group Amundi132,367$169K<0.01%013F-HRTimelineGroup
GROUP ONE TRADING LLC130,665$167K<0.01%-77,31613F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.123,931$159K<0.01%new13F-HRTimelineGroup
LAZARI CAPITAL MANAGEMENT, INC.117,424$150K0.05%+5,00013F-HRTimeline
HighTower Advisors, LLC117,344$150K<0.01%+1513F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC115,240$148K<0.01%-90,72713F-HRTimelineGroup
SIMPLEX TRADING, LLC112,989$145K<0.01%-6,01113F-HRTimeline
DRW Securities, LLC111,450$143K0.01%+37513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.111,424$143K<0.01%+1,67113F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co110,811$141K<0.01%+26,03813F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC109,231$140K<0.01%+8,02813F-HRTimelineGroup
Graham Capital Management, L.P.107,622$138K<0.01%new13F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…103,230$132K<0.01%013F-HRTimeline
China Universal Asset Management Co., L…102,098$131K0.01%-11,18313F-HRTimeline
HUB Investment Partners, LLC101,634$130K<0.01%new13F-HRTimeline
GLOBEFLEX CAPITAL L P100,355$128K0.02%new13F-HRTimeline
KLP KAPITALFORVALTNING AS100,200$128K<0.01%013F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC95,832$123K<0.01%+8,08013F-HRTimelineGroup
AXQ CAPITAL, LP95,104$122K0.01%new13F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD89,500$115K<0.01%new13F-HRTimeline
Forefront Analytics, LLC88,779$114K0.12%+33,65413F-HRTimeline
E Fund Management Co., Ltd.85,508$109K<0.01%-25,56213F-HRTimeline
Polymer Capital Management (US) LLC82,499$106K0.02%+24,96513F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A82,100$105K<0.01%013F-HRTimelineGroup
Poehling Capital Management, INC.76,201$97.5K0.02%013F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.72,971$93.4K<0.01%+3,46613F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC72,538$92.8K<0.01%+2,96013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…71,528$91.6K<0.01%013F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC64,879$83K<0.01%013F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC64,470$83K<0.01%new13F-HRTimelineGroup
FORESIGHT CAPITAL MANAGEMENT ADVISORS, …62,500$80K0.04%new13F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV61,908$79.2K<0.01%-20,40613F-HR/ATimeline
State of Wyoming60,674$77.7K0.01%new13F-HRTimeline
CenterBook Partners LP59,267$75.9K<0.01%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS56,352$72.1K<0.01%-5,74113F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC55,705$71.3K<0.01%-4,14213F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…54,913$70K<0.01%013F-HRTimeline
XPONANCE LLC53,557$68.6K<0.01%+5,23813F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC48,736$62.4K<0.01%+4,85113F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…47,829$61.2K<0.01%+3,19713F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…45,637$58.4K<0.01%013F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP43,829$57.9K<0.01%-45,12313F-HRTimelineGroup
PINNACLE ASSOCIATES LTD44,287$56.7K<0.01%-17913F-HRTimeline
Pinnacle Wealth Management Advisory Gro…44,287$56.7K<0.01%-17913F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC42,794$54.8K<0.01%+3,27513F-HRTimelineGroup
Alternative Investment Advisors, LLC.39,278$50.3K0.02%013F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC37,487$48K<0.01%+19613F-HRTimelineGroup
R Squared Ltd35,580$45.5K0.02%new13F-HRTimeline
IHT Wealth Management, LLC35,250$45.1K<0.01%+1,50013F-HRTimeline
WEDBUSH SECURITIES INC34,898$45K<0.01%-3,76313F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP34,455$44.1K<0.01%+23,64313F-HR/ATimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO34,049$43.6K<0.01%-7,84213F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…31,774$40.7K<0.01%-76,39813F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…31,173$39.9K<0.01%-7,65013F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/30,072$38.5K<0.01%+1,00013F-HRTimelineGroup
OneDigital Investment Advisors LLC30,000$38.4K<0.01%new13F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…30,120$38.3K<0.01%+20,00013F-HRTimeline
Cetera Investment Advisers29,767$38.1K<0.01%013F-HRTimeline
Abel Hall, LLC29,469$37.7K0.01%-34,17313F-HRTimeline
EVENTIDE ASSET MANAGEMENT, LLC28,050$36.5K<0.01%+2,39313F-HRTimeline
SBI Securities Co., Ltd.28,236$36.1K<0.01%+16,52513F-HRTimeline
Elmwood Wealth Management, Inc.28,200$36.1K0.01%-1,61513F-HRTimeline
Summit Financial Strategies, Inc.27,000$34.6K<0.01%013F-HRTimeline
Sowell Financial Services LLC27,000$34.6K<0.01%-2613F-HRTimeline
Savant Capital, LLC26,012$33.3K<0.01%+6213F-HRTimeline
Dynamic Technology Lab Private Ltd26,142$33K0.01%+15,15713F-HRTimeline
High Net Worth Advisory Group LLC25,500$32.6K0.01%013F-HRTimeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…25,181$32.2K<0.01%-2,81513F-HRTimelineGroup
StoneCrest Wealth Management, Inc.25,000$32K0.01%013F-HRTimeline
Vistica Wealth Advisors, LLC25,000$32K0.03%013F-HRTimeline
GTS SECURITIES LLC23,772$30.4K<0.01%+9,92113F-HRTimeline
PACES FERRY WEALTH ADVISORS, LLC23,500$30.1K0.01%013F-HRTimeline
55 North Private Wealth, LLC21,753$27.8K0.01%013F-HRTimeline
Jasper Ridge Partners, L.P.20,995$26.9K<0.01%013F-HR/ATimeline
J. Safra Sarasin Holding AGin group J. Safra Sarasin Holding AG20,928$26.8K<0.01%new13F-HRTimelineGroup
LCM Capital Management Inc20,400$26.1K0.01%013F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC19,365$24.8K<0.01%-2,91913F-HRTimelineGroup
Frisch Financial Group, Inc.19,025$24.4K<0.01%013F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …18,927$24.2K<0.01%-13,80013F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC18,698$23.9K<0.01%+51013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA17,541$23K<0.01%-16,84713F-HRTimelineGroup
CIBC Asset Management Inc17,209$22K<0.01%013F-HRTimeline
Prime Capital Investment Advisors, LLC16,720$21.4K<0.01%013F-HRTimeline
Chicago Partners Investment Group LLC14,363$20.8K<0.01%-2,85713F-HRTimeline
Allied Investment Advisors, LLC15,959$20.4K<0.01%013F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC15,575$19.9K<0.01%-9,80613F-HRTimelineGroup
Csenge Advisory Group15,474$19.8K<0.01%013F-HRTimeline
COUNTRY TRUST BANK15,000$19.2K<0.01%013F-HRTimeline
AMALGAMATED BANK15,180$19K<0.01%-1,98213F-HRTimeline
Cambridge Investment Research Advisors,…14,615$19K<0.01%-81,85413F-HR/ATimeline
TWO SIGMA SECURITIES, LLC14,447$18.5K<0.01%new13F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.14,400$18.4K<0.01%-28,60013F-HRTimeline
HARBOUR INVESTMENTS, INC.14,247$18.2K<0.01%013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS13,574$17.4K<0.01%-1,99913F-HRTimeline
SIGNATUREFD, LLC13,528$17.3K<0.01%-3,00413F-HRTimeline
GF FUND MANAGEMENT CO. LTD.13,506$17.3K<0.01%-72713F-HRTimeline
PlanVest Financial, Inc12,873$16.5K0.01%013F-HRTimeline
PFG Investments, LLC12,546$16.1K<0.01%new13F-HRTimeline
Seelaus Asset Management LLC12,500$16K0.01%013F-HRTimeline