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Disclosery

GERN GERON CORP

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COM (common), issuer CIK 886744

257 managers (263 13F filers) reported a position in GERN shares at 2025-09-30, 507,094,789 shares in all. 33 filers opened a position and 29 filers sold out during the quarter.

Managers
257
13F filers
263
New
33
Added
71
Reduced
89
Sold out
29
Shares held by filers
507,094,789

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, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, 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
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.60,379,366$82.7M1.02%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.46,605,750$63.8M<0.01%-3,417,73513F-HRTimelineGroup
Deep Track Capital, LP41,096,522$56.3M1.57%-1,903,47813F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding34,454,056$47.2M-1,194,382Timeline
Vivo Capital, LLC27,225,292$37.3M3%013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP26,618,814$36.5M<0.01%+2,986,93813F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC21,307,395$29.2M<0.01%+11,491,73513F-HRTimelineGroup
Soleus Capital Management, L.P.17,290,000$23.7M1.27%+1,150,00013F-HRTimeline
Vestal Point Capital, LP17,225,000$23.6M1.07%-6,550,00013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC15,705,068$21.5M0.02%+3,669,16713F-HRTimelineGroup
Franklin Resourcesgroup of 2 filers holding14,258,144$19.5M-118,167Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC13,123,540$18M<0.01%-1,028,49813F-HRTimelineGroup
Eversept Partners, LP12,599,002$17.3M1.32%+5,278,82813F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC11,367,989$15.6M0.01%+5,320,63513F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY10,698,356$14.7M<0.01%-2,597,08613F-HR/ATimelineGroup
UBS Group AGgroup of 2 filers holding9,033,974$12.4M-4,789,663Timeline
Nantahala Capital Management, LLCin group Nantahala Capital Management,…9,025,000$12.4M0.76%new13F-HRTimelineGroup
FMR LLCin group FMR LLC7,701,070$10.6M<0.01%+2,863,44513F-HRTimelineGroup
Aberdeen Group plcin group Aberdeen Group plc5,970,923$8.18M0.01%-1,015,00913F-HRTimelineGroup
Woodline Partners LP5,883,792$8.06M0.04%-2,114,39613F-HRTimeline
SEGALL BRYANT & HAMILL, LLC5,335,216$7.31M0.1%-1,856,96813F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\5,130,262$7.03M<0.01%+1,412,25913F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP4,862,558$6.66M<0.01%-391,65613F-HRTimelineGroup
Qube Research & Technologies Ltd4,722,818$6.47M0.01%-258,78013F-HRTimeline
ALGERT GLOBAL LLC4,527,741$6.2M0.1%+79,14113F-HR/ATimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co4,509,465$6.18M<0.01%-179,84913F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/3,494,346$4.79M<0.01%-2,895,39313F-HR/ATimelineGroup
Kynam Capital Management, LP3,456,318$4.74M0.35%013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC3,288,707$4.51M0.01%-310,51413F-HRTimelineGroup
Candriam S.C.A.3,253,960$4.46M0.02%+1,358,06813F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC3,010,000$4.12M0.37%-90,00013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC2,364,280$3.24M<0.01%-2,634,82013F-HRTimeline
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …2,330,000$3.19M0.05%013F-HRTimelineGroup
Pale Fire Capital SEin group Pale Fire Capital2,281,754$3.13M0.34%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding2,237,564$3.07MnewTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC2,122,338$2.91M<0.01%+2,097,08413F-HRTimelineGroup
TIAAgroup of 2 filers holding2,033,029$2.79M-139,700Timeline
BARCLAYS PLCin group BARCLAYS PLC1,935,606$2.65M<0.01%-217,21913F-HR/ATimelineGroup
Exome Asset Management LLC1,858,354$2.55M1.68%-1,556,02313F-HRTimeline
Stonepine Capital Management, LLC1,600,000$2.19M1.78%+600,00013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp1,574,744$2.16M<0.01%-59,66613F-HRTimelineGroup
Affinity Asset Advisors, LLC1,500,000$2.06M0.19%013F-HRTimeline
Arax Advisory Partners1,394,080$1.93M0.03%new13F-HRTimeline
NAN FUNG TRINITY (HK) LTD1,373,550$1.88M0.19%013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…1,240,671$1.7M<0.01%-363,01413F-HRTimelineGroup
World Investment Advisors1,039,779$1.42M0.03%+7,37613F-HRTimeline
Rafferty Asset Management, LLC986,354$1.35M<0.01%+157,84513F-HRTimeline
Invesco Ltd.in group Invesco Ltd.960,461$1.32M<0.01%+170,01413F-HRTimelineGroup
Almitas Capital LLC946,323$1.3M0.3%new13F-HR/ATimeline
Swiss National Bank926,100$1.27M<0.01%-47,40013F-HRTimeline
HRT FINANCIAL LP901,874$1.24M<0.01%+404,46713F-HRTimeline
Patient Square Capital LP845,000$1.16M0.31%+129,00013F-HRTimeline
RHUMBLINE ADVISERS837,653$1.15M<0.01%-36,24013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN769,258$1.05M<0.01%+187,31613F-HRTimelineGroup
Schonfeld Strategic Advisors LLC763,511$1.05M0.01%+325,71613F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC697,055$955K<0.01%+27413F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.625,291$857K<0.01%013F-HRTimeline
MML INVESTORS SERVICES, LLC551,115$755K<0.01%-80013F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC537,927$737K0.06%-547,50013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc507,900$696K<0.01%-42,97113F-HRTimelineGroup
Lion Point Capital, LP500,000$685K3.89%013F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO487,249$668K<0.01%-52,83913F-HR/ATimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…479,430$657K<0.01%-7313F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC456,176$625K0.06%+15,00013F-HRTimelineGroup
Aquatic Capital Management LLC437,875$600K0.01%new13F-HRTimeline
Private Advisor Group, LLC418,877$574K<0.01%+71,38913F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC417,896$573K<0.01%+209,90413F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC376,272$515K<0.01%+342,09813F-HRTimeline
Empire Financial Management Company, LLC370,000$507K0.12%new13F-HRTimeline
Hennion & Walsh Asset Management, Inc.364,400$499K0.02%-6,63513F-HRTimeline
Creative Planningin group Creative Planning348,589$478K<0.01%-8,83813F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC329,051$451K0.04%+44,32713F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding328,879$448K-68,238Timeline
Nvest Financial, LLC313,726$430K0.25%-8,39913F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC302,509$414K<0.01%-41,05113F-HRTimelineGroup
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…296,379$406K0.03%-3,44013F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/288,838$396K<0.01%-209,60713F-HRTimeline
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…284,868$390K0.11%013F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…269,528$369K0.01%+233,91113F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…266,749$365K<0.01%-96,38813F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd261,865$359K<0.01%+111,15913F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA251,081$344K<0.01%+24,50213F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson239,357$329K<0.01%013F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC233,992$321K<0.01%-120,72313F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…230,334$316K<0.01%+6,23413F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS226,508$310K<0.01%+35,74513F-HRTimelineGroup
GROUP ONE TRADING LLC220,623$302K0.01%-131,71913F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD219,398$301K<0.01%-7,88413F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC214,422$294K<0.01%-34913F-HRTimelineGroup
PROFUND ADVISORS LLC213,466$292K0.01%+37,53513F-HRTimeline
Cresset Asset Management, LLC182,844$250K<0.01%+5,54013F-HR/ATimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …180,450$247K<0.01%-136,17213F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND171,453$235K<0.01%013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd165,516$227K0.01%+40,99413F-HRTimelineGroup
Police & Firemen's Retirement System of…153,371$210K<0.01%+9,53913F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co154,992$201K<0.01%+2,54113F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…142,122$195K<0.01%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM140,855$193K<0.01%-7,37813F-HRTimeline
Cambridge Investment Research Advisors,…137,025$188K<0.01%-32,00013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…134,237$184K0.01%+55,92013F-HRTimelineGroup
LPL Financial LLC132,870$182K<0.01%+52313F-HRTimeline
Y-Intercept (Hong Kong) Ltd124,796$171K<0.01%new13F-HRTimeline
HighTower Advisors, LLC119,219$163K<0.01%+59,47013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS117,523$161K<0.01%-19,85413F-HRTimeline
ProShare Advisors LLC116,136$159K<0.01%-32,13113F-HRTimeline
SG Americas Securities, LLC113,333$155K<0.01%new13F-HRTimeline
China Universal Asset Management Co., L…111,835$153K0.01%-16,08713F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS110,794$152K<0.01%+36,27013F-HRTimelineGroup
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC106,133$145K<0.01%-60,72913F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…103,230$141K<0.01%013F-HRTimeline
LAZARI CAPITAL MANAGEMENT, INC.102,924$141K0.05%+1,00013F-HRTimeline
DRW Securities, LLC106,638$139K0.01%+9,18513F-HRTimeline
KLP KAPITALFORVALTNING AS100,200$137K<0.01%013F-HRTimeline
Ballentine Partners, LLC93,971$129K<0.01%+11,88713F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.91,559$128K<0.01%+3,60513F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…93,839$121K<0.01%-5,41913F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd87,300$120K<0.01%new13F-HRTimelineGroup
Velan Capital Investment Management LP80,000$110K0.1%+10,00013F-HRTimeline
Mariner, LLCin group Mariner, LLC77,642$106K<0.01%-6,49813F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC76,312$105K<0.01%-322,46313F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC76,269$104K<0.01%-3,22513F-HRTimelineGroup
Poehling Capital Management, INC.76,201$104K0.02%+70013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…71,528$98K<0.01%013F-HRTimelineGroup
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A71,100$97.4K<0.01%13F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP69,793$95.6K<0.01%-5,76013F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC69,624$95.4K<0.01%-2,32713F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC64,879$88.9K<0.01%+51,75613F-HRTimelineGroup
SIMPLEX TRADING, LLC63,602$87K<0.01%-73,80613F-HRTimeline
Global Retirement Partners, LLC60,000$82.2K<0.01%013F-HRTimeline
CIBC Bancorp USA Inc.group of 2 filers holding58,230$79.8K+58,123Timeline
Man Group plcin group Man Group plc57,011$78.1K<0.01%new13F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…54,913$75K<0.01%013F-HRTimeline
Cetera Investment Advisers54,421$74.6K<0.01%+30,59113F-HRTimeline
Forefront Analytics, LLC52,258$71.6K0.07%+17,07713F-HRTimeline
Forefront Wealth Partners, LLC52,258$71.6K0.02%new13F-HRTimeline
ExodusPoint Capital Management, LP47,035$64.4K<0.01%new13F-HRTimeline
Polymer Capital Management (US) LLC45,987$63K0.01%-65,36713F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…45,637$62.5K<0.01%-13,31613F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV44,818$61.4K<0.01%-1,04813F-HRTimeline
WEDBUSH SECURITIES INC44,661$61K<0.01%013F-HRTimeline
GSA CAPITAL PARTNERS LLP44,430$61K0.01%-634,90113F-HRTimeline
PINNACLE ASSOCIATES LTD44,287$60.7K<0.01%-6,21813F-HRTimeline
Pinnacle Wealth Management Advisory Gro…44,287$60.7K<0.01%-6,21813F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.43,000$58.9K<0.01%013F-HR/ATimeline
XPONANCE LLC42,545$58.3K<0.01%-4,40513F-HRTimeline
NORTHWESTERN MUTUAL WEALTH MANAGEMENT COin group NORTHWESTERN MUTUAL INVESTMEN…42,050$57.6K<0.01%+40,05013F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC41,791$57.3K<0.01%-1,38713F-HRTimelineGroup
Alternative Investment Advisors, LLC.39,278$53.8K0.02%013F-HRTimeline
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…38,913$53.3K<0.01%new13F-HRTimelineGroup
Gotham Asset Management, LLC38,830$53.2K<0.01%+66913F-HRTimeline
MACKENZIE FINANCIAL CORP38,474$52.7K<0.01%013F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC36,737$50.3K<0.01%-139,71313F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP35,405$48.5K<0.01%-1,05013F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO34,073$46.7K<0.01%013F-HRTimelineGroup
IHT Wealth Management, LLC33,750$46.2K<0.01%013F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC33,725$46.2K<0.01%+1,51513F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …32,727$44.8K<0.01%-7,28513F-HRTimelineGroup
Jasper Ridge Partners, L.P.32,472$44.5K<0.01%013F-HRTimeline
Aigen Investment Management, LP31,659$43.4K0.01%new13F-HRTimeline
Dynamic Technology Lab Private Ltd31,918$43K0.01%-3,04213F-HRTimeline
Elmwood Wealth Management, Inc.29,710$40.7K0.01%+1,51013F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/29,072$39.8K<0.01%-4,93613F-HRTimelineGroup
Sanctuary Advisors, LLC28,740$39.4K<0.01%+5,60913F-HR/ATimeline
TWIN PEAKS WEALTH ADVISORS, LLC27,644$37.9K0.01%013F-HRTimeline
Fisher Asset Management, LLC27,209$37.3K<0.01%new13F-HRTimeline
Summit Financial Strategies, Inc.27,000$37K<0.01%013F-HRTimeline
Sowell Financial Services LLC27,000$37K<0.01%013F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…26,371$36.1K<0.01%+11,18213F-HRTimelineGroup
Savant Capital, LLCin group Savant Capital, LLC26,050$35.7K<0.01%+10013F-HR/ATimelineGroup
High Net Worth Advisory Group LLC25,500$34.9K0.01%-2013F-HRTimeline
StoneCrest Wealth Management, Inc.25,000$34.2K0.02%013F-HRTimeline
Vishria Bird Financial Group, LLC24,265$33.2K0.01%013F-HRTimeline
PACES FERRY WEALTH ADVISORS, LLC23,500$32.2K0.01%013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP22,532$30.9K<0.01%-922,25813F-HRTimelineGroup
Walleye Capital LLCin group Walleye Capital LLC21,785$29.8K<0.01%-18,25413F-HRTimelineGroup
AMALGAMATED BANK20,482$28K<0.01%013F-HRTimeline
Chicago Partners Investment Group LLC20,524$26.3K<0.01%-5,05013F-HRTimeline
Frisch Financial Group, Inc.19,025$26.1K0.01%013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC18,485$25.3K<0.01%-2,43913F-HRTimelineGroup
ROVIN CAPITAL /UT/ /ADV17,270$24K0.01%013F-HR/ATimeline
CIBC Asset Management Inc17,209$23.6K<0.01%013F-HRTimeline
J.W. COLE ADVISORS, INC.16,230$22.2K<0.01%013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC15,840$22K<0.01%+50013F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC15,968$21.9K<0.01%-9,21913F-HRTimelineGroup
Allied Investment Advisors, LLC15,959$21.9K<0.01%-5,00013F-HRTimeline
Atom Investors LP15,753$21.6K<0.01%new13F-HRTimeline
Csenge Advisory Group15,474$21.2K<0.01%013F-HRTimeline
COUNTRY TRUST BANK15,000$20.6K<0.01%013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS14,685$20.1K<0.01%+29413F-HRTimeline
111 Capital14,555$19.9K<0.01%-30,33513F-HRTimeline
SIGNATUREFD, LLC14,254$19.5K<0.01%+2,04013F-HRTimeline
GF FUND MANAGEMENT CO. LTD.13,727$18.8K<0.01%-1,75313F-HRTimeline
HARBOUR INVESTMENTS, INC.13,165$18K<0.01%013F-HRTimeline
Seelaus Asset Management LLC12,500$17.1K0.01%013F-HR/ATimeline
Piscataqua Savings Bank12,500$17K0.01%013F-HRTimeline
LCM Capital Management Inc12,400$17K0.01%new13F-HRTimeline
SBI Securities Co., Ltd.11,750$16.1K<0.01%+17513F-HRTimeline
Bernardo Wealth Planning LLC11,650$16K<0.01%013F-HRTimeline
GTS SECURITIES LLC11,645$16K<0.01%new13F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.11,500$15.8K<0.01%013F-HRTimelineGroup