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Disclosery

GERN GERON CORP

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COM (common), issuer CIK 886744

246 managers (256 13F filers) reported a position in GERN shares at 2026-03-31, 497,193,190 shares in all. 27 filers opened a position and 38 filers sold out during the quarter.

Managers
246
13F filers
256
New
27
Added
90
Reduced
56
Sold out
38
Shares held by filers
497,193,190

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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.63,771,366$95M1.01%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.47,319,779$70.5M<0.01%+1,406,43513F-HRTimelineGroup
Soleus Capital Management, L.P.41,508,659$61.8M2.5%+18,218,65913F-HRTimeline
VANGUARD GROUP INCgroup of 7 filers holding35,885,687$53.5M+35,858,573Timeline
Deep Track Capital, LP31,720,278$47.3M0.98%-790,99313F-HRTimeline
STATE STREET CORPin group STATE STREET CORP30,497,183$45.4M<0.01%+3,629,86113F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC21,576,569$32.1M0.02%+11,650,78313F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.20,457,134$30.5M0.05%new13F-HRTimelineGroup
Franklin Resourcesgroup of 2 filers holding19,651,081$29.3M+5,376,729Timeline
Eversept Partners, LP18,834,883$28.1M1.85%+1,174,90013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC13,670,785$20.4M<0.01%+643,45013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY12,665,119$18.9M<0.01%+61,70113F-HRTimelineGroup
Nantahala Capital Management, LLCin group Nantahala Capital Management,…11,225,000$16.7M1.04%+2,200,00013F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC11,176,591$16.7M<0.01%-4,997,80713F-HRTimelineGroup
Vivo Capital, LLC8,671,797$12.9M1.07%-18,553,49513F-HR/ATimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC7,321,522$10.9M0.01%+2,717,64613F-HRTimelineGroup
Kynam Capital Management, LP6,836,318$10.2M0.65%+3,380,00013F-HRTimeline
FMR LLCin group FMR LLC6,597,156$9.83M<0.01%-1,479,80913F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\5,203,516$7.75M<0.01%+62,70713F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding4,964,347$7.4M+458,354Timeline
Pale Fire Capital SEin group Pale Fire Capital4,888,304$7.28M0.64%+99,71013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP4,862,264$7.24M<0.01%+135,65913F-HRTimelineGroup
SEGALL BRYANT & HAMILL, LLC4,740,048$7.06M0.1%-308,88813F-HR/ATimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/4,556,278$6.79M<0.01%+1,858,26813F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co4,483,376$6.68M<0.01%-30,68713F-HRTimelineGroup
Candriam S.C.A.3,921,476$5.84M0.03%+1,081,99213F-HRTimeline
TIAAgroup of 3 filers holding2,989,739$4.45M+931,646Timeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP2,960,047$4.41M<0.01%new13F-HRTimelineGroup
Vestal Point Capital, LP2,540,000$3.78M0.11%-8,780,00013F-HRTimeline
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …2,330,000$3.47M0.05%013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson2,218,196$3.3M<0.01%+1,978,83913F-HR/ATimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP1,889,468$2.82M<0.01%-912,00013F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC1,799,521$2.68M<0.01%+1,062,35513F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp1,540,236$2.29M<0.01%-33,60013F-HRTimelineGroup
Qube Research & Technologies Ltd1,445,859$2.15M<0.01%-1,661,67013F-HRTimeline
NAN FUNG TRINITY (HK) LTD1,373,550$2.05M0.22%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.1,304,458$1.94M<0.01%+78,80013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…1,250,017$1.86M<0.01%-46,14613F-HRTimelineGroup
HRT FINANCIAL LP1,214,752$1.81M<0.01%+14,52713F-HRTimeline
World Investment Advisors1,033,779$1.54M0.02%013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd961,159$1.43M0.02%+702,76213F-HRTimelineGroup
Swiss National Bank947,500$1.41M<0.01%+21,40013F-HRTimeline
Rafferty Asset Management, LLC883,595$1.32M0.01%+61,70513F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC771,971$1.15M<0.01%-241,03213F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…737,143$1.1M<0.01%+261,88613F-HRTimeline
RHUMBLINE ADVISERS700,101$1.04M<0.01%-27,41113F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC651,185$970K<0.01%-38613F-HR/ATimelineGroup
CITIGROUP INCin group CITIGROUP INC633,501$944K<0.01%+494,11013F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…620,795$925K0.26%+118,28613F-HRTimelineGroup
J. Goldman & Co LP610,659$910K0.04%new13F-HRTimeline
Lion Point Capital, LP578,000$861K5.15%013F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC521,439$777K<0.01%-2,72013F-HRTimelineGroup
Nvest Financial, LLC508,474$758K0.28%+279,68313F-HRTimeline
ALLIANCEBERNSTEIN L.P.555,701$734K<0.01%+169,36013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN460,729$686K<0.01%-394,41213F-HR/ATimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS426,698$636K<0.01%+355,07013F-HRTimelineGroup
Seven Fleet Capital Management LP424,180$632K0.2%-353,70013F-HR/ATimeline
Private Advisor Group, LLC423,328$631K<0.01%+2,99613F-HRTimeline
Man Group plcin group Man Group plc396,908$591K<0.01%+273,06013F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.396,632$591K0.02%-24,82613F-HRTimeline
PROFUND ADVISORS LLC394,909$588K0.02%+87,99613F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/390,016$582K<0.01%+77,98913F-HRTimeline
PANAGORA ASSET MANAGEMENT INC360,845$538K<0.01%new13F-HRTimeline
Inspire Investing, LLCin group Inspire Investing, LLC349,627$521K0.03%-4,52313F-HRTimelineGroup
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding352,105$520K+19,492Timeline
Legal & General Group Plcin group Legal & General Group Plc296,841$442K<0.01%-146,48713F-HRTimelineGroup
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…295,425$440K0.04%013F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC290,780$433K<0.01%+107,41413F-HRTimelineGroup
SG Americas Securities, LLC279,083$416K<0.01%+120,29613F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO291,838$411K<0.01%+27,36013F-HR/ATimelineGroup
GSA CAPITAL PARTNERS LLP258,414$385K0.02%+231,53513F-HRTimeline
Aquatic Capital Management LLC255,927$381K0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…250,662$373K<0.01%-46,40013F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd232,332$346K<0.01%+53,83513F-HRTimelineGroup
Creative Planningin group Creative Planning220,604$329K<0.01%+16,75713F-HRTimelineGroup
GROUP ONE TRADING LLC207,981$310K0.01%+2,29013F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC205,967$307K<0.01%-1,369,46213F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD203,526$303K<0.01%+1,00613F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC200,000$298K0.02%-136,17613F-HRTimelineGroup
Cresset Asset Management, LLC194,464$290K<0.01%+5,91813F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND171,453$255K<0.01%013F-HRTimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…163,622$244K<0.01%new13F-HRTimelineGroup
Police & Firemen's Retirement System of…153,371$229K<0.01%013F-HRTimeline
LPL Financial LLC149,857$223K<0.01%+20,46913F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …148,669$222K<0.01%-18,17513F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC143,513$214K<0.01%-90,47913F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…142,122$212K<0.01%013F-HRTimeline
Scientech Research LLC133,846$199K0.17%-93,62613F-HRTimeline
Amundiin group Amundi132,367$197K<0.01%+103,94413F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM131,507$196K<0.01%-3,42913F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK127,711$190K<0.01%new13F-HRTimelineGroup
Voleon Capital Management LP122,612$183K<0.01%+93,02213F-HRTimeline
SIMPLEX TRADING, LLC119,000$177K0.01%+84,40113F-HRTimeline
HighTower Advisors, LLC117,329$175K<0.01%+12513F-HRTimeline
Mason & Associates Inc120,700$170K0.03%013F-HRTimeline
China Universal Asset Management Co., L…113,281$169K0.01%+9,26113F-HRTimeline
LAZARI CAPITAL MANAGEMENT, INC.112,424$168K0.06%+18,50013F-HRTimeline
Arax Advisory Partners111,428$166K<0.01%-515,86913F-HRTimeline
DRW Securities, LLC111,075$166K0.01%+7,87313F-HRTimeline
E Fund Management Co., Ltd.111,070$165K<0.01%13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.109,753$164K<0.01%+19,47013F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…108,172$161K<0.01%+42,36513F-HRTimelineGroup
ProShare Advisors LLC107,731$161K<0.01%-20,29513F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…103,230$154K<0.01%013F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC101,203$151K<0.01%-4,93013F-HRTimelineGroup
KLP KAPITALFORVALTNING AS100,200$149K<0.01%013F-HRTimeline
EntryPoint Capital, LLC99,074$148K0.04%-52,83513F-HRTimeline
Cambridge Investment Research Advisors,…96,469$144K<0.01%+72913F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC87,752$131K<0.01%+51,33013F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co84,773$126K<0.01%+9,61313F-HRTimelineGroup
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP88,952$125K<0.01%+79,11413F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV82,314$123K<0.01%-9,30513F-HRTimeline
CREDIT AGRICOLE S Ain group CREDIT AGRICOLE S A82,100$122K<0.01%013F-HRTimelineGroup
Poehling Capital Management, INC.76,201$114K0.02%013F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…71,528$107K<0.01%013F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC69,578$104K<0.01%-34813F-HRTimeline
CIBC Bancorp USA Inc.in group CIBC Bancorp USA Inc.69,505$104K<0.01%13F-HRTimelineGroup
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC64,879$96.7K<0.01%013F-HRTimelineGroup
Abel Hall, LLC63,642$94.8K0.02%+20,01513F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS62,093$92.5K<0.01%-8,66813F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…60,800$90.6K<0.01%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC59,847$89.2K<0.01%+15,46113F-HRTimelineGroup
Polymer Capital Management (US) LLC57,534$85.7K0.01%+23,30213F-HRTimeline
Forefront Analytics, LLC55,125$82.1K0.07%+3,80513F-HRTimeline
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…54,913$82K<0.01%013F-HRTimeline
DNB Asset Management ASin group DNB Asset Management AS52,376$78K<0.01%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…49,047$73.1K<0.01%-175,99913F-HRTimelineGroup
XPONANCE LLC48,319$72K<0.01%+5,39813F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…45,637$68K<0.01%013F-HRTimelineGroup
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…44,632$66.5K<0.01%+18,26113F-HRTimelineGroup
PINNACLE ASSOCIATES LTD44,466$66.3K<0.01%+17913F-HRTimeline
Pinnacle Wealth Management Advisory Gro…44,466$66.3K<0.01%+17913F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC43,885$65.4K<0.01%+4,48013F-HRTimeline
FARALLON CAPITAL MANAGEMENT, L.L.C.43,000$64.1K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
SEI INVESTMENTS COin group SEI INVESTMENTS CO41,891$62.4K<0.01%+7,84013F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC39,519$58.9K<0.01%+6,71313F-HRTimelineGroup
Alternative Investment Advisors, LLC.39,278$58.5K0.03%013F-HRTimeline
WEDBUSH SECURITIES INC38,661$58K<0.01%013F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…38,823$57.8K<0.01%-5,79013F-HRTimelineGroup
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC37,291$55.6K<0.01%+31013F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd35,863$53.4K<0.01%new13F-HRTimeline
Caitong International Asset Management …35,789$53.3K0.01%-2,53013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA34,388$52K<0.01%-4,87613F-HRTimelineGroup
IHT Wealth Management, LLC33,750$50.3K<0.01%013F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …32,727$48.8K<0.01%013F-HRTimelineGroup
Elmwood Wealth Management, Inc.29,815$44.4K0.01%+1,61513F-HRTimeline
Cetera Investment Advisers29,767$44.4K<0.01%-28,01513F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/29,072$43.3K<0.01%013F-HRTimelineGroup
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…27,996$41.7K<0.01%+17,42413F-HRTimelineGroup
TWIN PEAKS WEALTH ADVISORS, LLC27,444$40.9K0.01%013F-HRTimeline
Sowell Financial Services LLC27,026$40.3K<0.01%-1313F-HRTimeline
Summit Financial Strategies, Inc.27,000$40.2K<0.01%013F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC25,950$38.7K<0.01%013F-HRTimelineGroup
High Net Worth Advisory Group LLC25,500$38K0.01%013F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC25,381$37.8K<0.01%new13F-HRTimelineGroup
StoneCrest Wealth Management, Inc.25,000$37.2K0.02%013F-HRTimeline
Vistica Wealth Advisors, LLC25,000$37.2K0.04%013F-HRTimeline
EVENTIDE ASSET MANAGEMENT, LLC25,657$36.2K<0.01%+10,22913F-HRTimeline
Schonfeld Strategic Advisors LLC24,102$35.9K<0.01%+8,77813F-HRTimeline
PACES FERRY WEALTH ADVISORS, LLC23,500$35K0.01%013F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC22,284$33.2K<0.01%new13F-HRTimelineGroup
55 North Private Wealth, LLC21,753$32.4K0.01%013F-HRTimeline
Jasper Ridge Partners, L.P.20,995$31.3K<0.01%013F-HRTimeline
LCM Capital Management Inc20,400$30.4K0.02%-2,00013F-HRTimeline
Stembrook Asset Management, LLC20,000$29.8K0.03%new13F-HRTimeline
Frisch Financial Group, Inc.19,025$28.3K0.01%013F-HRTimeline
Headlands Technologies LLC18,795$28K<0.01%new13F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC18,188$27.1K<0.01%new13F-HRTimelineGroup
Chicago Partners Investment Group LLC17,220$26.7K<0.01%-4,54013F-HRTimeline
AMALGAMATED BANK17,162$26K<0.01%013F-HRTimeline
CIBC Asset Management Inc17,209$25.6K<0.01%013F-HRTimeline
Prime Capital Investment Advisors, LLC16,720$24.9K<0.01%new13F-HRTimeline
SIGNATUREFD, LLC16,532$24.6K<0.01%-47013F-HRTimeline
Allied Investment Advisors, LLC15,959$23.8K<0.01%013F-HRTimeline
CAPTRUST FINANCIAL ADVISORS15,573$23.2K<0.01%+1,99413F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC15,530$23.1K<0.01%-3513F-HRTimeline
Csenge Advisory Group15,474$23.1K<0.01%013F-HRTimeline
COUNTRY TRUST BANK15,000$22.4K<0.01%013F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP14,836$22.1K<0.01%-16,92613F-HRTimelineGroup
HARBOUR INVESTMENTS, INC.14,247$21.2K<0.01%013F-HRTimeline
GF FUND MANAGEMENT CO. LTD.14,233$21.2K<0.01%+2,08013F-HRTimeline
GTS SECURITIES LLC13,851$20.6K<0.01%new13F-HRTimeline
PlanVest Financial, Inc12,873$19.2K0.01%13F-HRTimeline
Seelaus Asset Management LLC12,500$18.6K0.01%013F-HRTimeline
Piscataqua Savings Bank12,500$18.6K0.01%013F-HRTimeline
ExodusPoint Capital Management, LP11,987$17.9K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.11,711$17.4K<0.01%+513F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.11,500$17.1K<0.01%013F-HRTimelineGroup
INSIGNEO ADVISORY SERVICES, LLC11,363$16.9K<0.01%new13F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…10,120$16.8K<0.01%+10,00013F-HRTimeline
Dynamic Technology Lab Private Ltd10,985$16.4K<0.01%-100,29613F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP10,812$16.1K<0.01%-24,80513F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp10,787$16.1K<0.01%-53213F-HR/ATimelineGroup
Valeo Financial Advisors, LLC10,375$15.5K<0.01%new13F-HRTimeline
Platform Technology Partners10,100$15K<0.01%013F-HRTimeline
Fort Sheridan Advisors LLC10,000$14.9K<0.01%013F-HRTimeline
Onyx Bridge Wealth Group LLC10,000$14.9K<0.01%013F-HRTimeline
Columbia Bank10,000$14.9K<0.01%013F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…9,614$14.3K<0.01%+8,37413F-HRTimelineGroup
RMG Wealth Management LLC10,000$13.9K<0.01%013F-HRTimeline