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Disclosery

GERN GERON CORP

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COM (common), issuer CIK 886744

256 managers (260 13F filers) reported a position in GERN shares at 2025-06-30, 514,457,641 shares in all. 27 filers opened a position and 40 filers sold out during the quarter.

Managers
256
13F filers
260
New
27
Added
97
Reduced
71
Sold out
40
Shares held by filers
514,457,641

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 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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
RA CAPITAL MANAGEMENT, L.P.in group RA CAPITAL MANAGEMENT, L.P.60,379,366$85.1M1.43%013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.50,023,485$70.5M<0.01%+948,17613F-HRTimelineGroup
Deep Track Capital, LP43,000,000$60.6M1.95%+4,823,74913F-HRTimeline
VANGUARD GROUP INCgroup of 2 filers holding35,648,438$50.3M+1,490,342Timeline
Vivo Capital, LLC27,225,292$38.4M3.93%013F-HRTimeline
Vestal Point Capital, LP23,775,000$33.5M1.76%+1,769,66013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP23,631,876$33.3M<0.01%-279,91613F-HRTimelineGroup
Soleus Capital Management, L.P.16,140,000$22.8M1.57%+13,740,00013F-HRTimeline
Franklin Resourcesgroup of 2 filers holding14,376,311$20.3M+5,621,611Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC14,152,038$20M<0.01%+584,44413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding13,823,637$19.5M+7,240,188Timeline
MORGAN STANLEYin group MORGAN STANLEY13,295,442$18.7M<0.01%+1,761,20413F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC12,035,901$17M0.01%+5,372,58713F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC9,815,660$13.8M<0.01%+1,679,46013F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.9,606,217$13.5M0.03%+2,479,39913F-HRTimelineGroup
Woodline Partners LP7,998,188$11.3M0.06%+269,44313F-HRTimeline
Eversept Partners, LP7,320,174$10.3M1.04%new13F-HRTimeline
SEGALL BRYANT & HAMILL, LLC7,192,184$10.1M0.14%-234,67013F-HRTimeline
Aberdeen Group plcin group Aberdeen Group plc6,985,932$9.85M0.02%+3,293,17913F-HRTimelineGroup
STEMPOINT CAPITAL LP6,649,244$9.38M3.02%+5,688,93713F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/6,389,739$9.01M<0.01%-3,302,62013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC6,047,354$8.53M0.01%-4,759,27113F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP5,254,214$7.41M<0.01%-2,74913F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC4,999,100$7.05M0.01%-602,00013F-HRTimeline
Qube Research & Technologies Ltd4,981,598$7.02M0.01%+186,04313F-HRTimeline
FMR LLCin group FMR LLC4,837,625$6.82M<0.01%-7,527,71913F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co4,689,314$6.61M<0.01%+238,28313F-HRTimelineGroup
ALGERT GLOBAL LLC4,448,600$6.27M0.13%+1,187,66613F-HR/ATimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\3,718,003$5.24M<0.01%-76,56213F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC3,599,221$5.07M0.01%+2,199,41313F-HR/ATimelineGroup
Kynam Capital Management, LP3,456,318$4.87M0.52%-203,20813F-HRTimeline
Exome Asset Management LLC3,414,377$4.81M3.97%+198,92013F-HR/ATimeline
Ally Bridge Group (NY) LLC3,251,475$4.58M3.81%+1,194,83813F-HRTimeline
683 Capital Management, LLCin group 683 Capital Management, LLC3,100,000$4.37M0.44%+250,00013F-HRTimelineGroup
EDMOND DE ROTHSCHILD HOLDING S.A.in group EDMOND DE ROTHSCHILD HOLDING …2,330,000$3.29M0.05%+200,00013F-HRTimelineGroup
TIAAgroup of 2 filers holding2,172,729$3.06M-736,350Timeline
BARCLAYS PLCin group BARCLAYS PLC2,152,825$3.04M<0.01%+997,90213F-HR/ATimelineGroup
Candriam S.C.A.1,895,892$2.67M0.02%-11813F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp1,634,410$2.3M<0.01%-5,40413F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…1,603,685$2.26M<0.01%-268,81513F-HRTimelineGroup
Ikarian Capital, LLCin group Ikarian Capital, LLC1,600,000$2.26M0.75%+1,450,00013F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management1,554,849$2.19M<0.01%-1,955,07113F-HRTimelineGroup
Affinity Asset Advisors, LLC1,500,000$2.12M0.31%013F-HRTimeline
NAN FUNG TRINITY (HK) LTD1,373,550$1.94M0.23%new13F-HRTimeline
PRELUDE CAPITAL MANAGEMENT, LLC1,085,427$1.53M0.15%+190,40213F-HRTimeline
World Investment Advisors1,032,403$1.46M0.03%+2,85013F-HRTimeline
Stonepine Capital Management, LLC1,000,000$1.41M1.39%+500,00013F-HRTimeline
Swiss National Bank973,500$1.37M<0.01%-22,00013F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP944,790$1.33M<0.01%-4,195,67413F-HRTimelineGroup
RHUMBLINE ADVISERS873,893$1.23M<0.01%+34,43713F-HRTimeline
Rafferty Asset Management, LLC828,509$1.17M<0.01%-53,09813F-HRTimeline
Centiva Capital, LP800,001$1.13M0.07%013F-HRTimeline
Invesco Ltd.in group Invesco Ltd.790,447$1.11M<0.01%-2,828,16013F-HRTimelineGroup
Patient Square Capital LP716,000$1.01M0.36%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC696,781$982K<0.01%-54,92513F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP679,331$958K0.07%+444,72513F-HRTimeline
ALLIANCEBERNSTEIN L.P.625,291$882K<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN581,942$821K<0.01%-380,83113F-HRTimelineGroup
CANTOR FITZGERALD, L. P.in group CANTOR FITZGERALD, L. P.576,436$813K0.02%+50,00013F-HRTimelineGroup
BOOTHBAY FUND MANAGEMENT, LLC572,002$807K0.02%+518,08513F-HRTimeline
MML INVESTORS SERVICES, LLC551,915$778K<0.01%+80013F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc550,871$775K<0.01%+42,34513F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO540,088$762K<0.01%-71113F-HRTimelineGroup
Lion Point Capital, LP500,000$705K4.79%013F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/498,445$703K<0.01%+65,03813F-HRTimeline
HRT FINANCIAL LP497,407$701K<0.01%-911,86713F-HRTimeline
Summit X, LLC494,789$698K0.13%-53,11013F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…479,503$676K<0.01%-5,45913F-HRTimeline
ADAR1 Capital Management, LLCin group ADAR1 Capital Management, LLC441,176$622K0.1%+175,00013F-HRTimelineGroup
Schonfeld Strategic Advisors LLC437,795$617K<0.01%+152,18913F-HRTimeline
Mirae Asset Global Investments Co., Ltd.group of 2 filers holding397,117$563K-16,729Timeline
CITIGROUP INCin group CITIGROUP INC398,775$562K<0.01%-721,55313F-HRTimelineGroup
Graham Capital Management, L.P.393,990$556K0.02%+17,23013F-HRTimeline
Hennion & Walsh Asset Management, Inc.371,035$523K0.02%-17,14113F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…363,137$512K<0.01%+57,82913F-HRTimelineGroup
Creative Planningin group Creative Planning357,427$504K<0.01%+250,75213F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC354,715$500K<0.01%-181,26013F-HRTimeline
GROUP ONE TRADING LLC352,342$497K0.02%-91,52213F-HRTimeline
Private Advisor Group, LLC347,488$490K<0.01%+8,89113F-HRTimeline
ALPS ADVISORS INCin group ALPS ADVISORS INC343,560$484K<0.01%new13F-HRTimelineGroup
Nvest Financial, LLC322,125$454K0.24%+122,88413F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …316,622$446K<0.01%+18,49113F-HRTimelineGroup
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…299,819$423K0.04%+4,39413F-HRTimelineGroup
Virtus Investment Advisers, LLCin group Virtus Investment Advisers, L…284,868$402K0.14%+193,28113F-HRTimelineGroup
Inspire Investing, LLCin group Inspire Investing, LLC284,724$401K0.04%+63,78913F-HRTimelineGroup
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…249,489$352K<0.01%-2,734,81013F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson239,357$336K<0.01%-18,653,61813F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD227,282$320K<0.01%-96,78113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA226,579$320K<0.01%+224,75013F-HR/ATimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…224,100$316K<0.01%+5,05413F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC214,771$303K<0.01%+72,05513F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC207,992$293K<0.01%+160,67413F-HRTimelineGroup
DNB Asset Management ASin group DNB Asset Management AS190,763$269K<0.01%+54,18213F-HRTimelineGroup
Cresset Asset Management, LLC177,304$250K<0.01%+4,42013F-HR/ATimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC176,450$249K<0.01%-36,24913F-HRTimelineGroup
PROFUND ADVISORS LLC175,931$248K0.01%-9,56213F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND171,453$242K<0.01%013F-HR/ATimeline
Cambridge Investment Research Advisors,…169,025$238K<0.01%+5,03513F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC166,862$235K<0.01%+7,33713F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co152,451$214K<0.01%+2,15313F-HRTimelineGroup
Quadrature Capital Ltdin group Quadrature Capital Ltd150,706$212K<0.01%+69,95013F-HRTimelineGroup
ProShare Advisors LLC148,267$209K<0.01%-8,50313F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM148,233$209K<0.01%+1,26813F-HRTimeline
Police & Firemen's Retirement System of…143,832$203K<0.01%+19,81213F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…142,122$200K<0.01%013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS137,377$194K<0.01%-90913F-HRTimeline
SIMPLEX TRADING, LLC137,408$193K0.01%-52,61313F-HRTimeline
HighVista Strategies LLC132,711$187K0.07%+5,42713F-HRTimeline
LPL Financial LLC132,347$187K<0.01%+71413F-HRTimeline
China Universal Asset Management Co., L…127,922$180K0.02%+17013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd124,522$176K0.01%+113,02313F-HRTimelineGroup
Polymer Capital Management (US) LLC111,354$157K0.03%+97,67813F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…103,230$146K<0.01%-67,21113F-HRTimeline
LAZARI CAPITAL MANAGEMENT, INC.101,924$144K0.05%+6,40013F-HRTimeline
WEALTH ENHANCEMENT ADVISORY SERVICES, L…99,258$142K<0.01%+4,59313F-HRTimeline
KLP KAPITALFORVALTNING AS100,200$141K<0.01%013F-HRTimeline
DRW Securities, LLC97,453$137K0.01%new13F-HRTimeline
E Fund Management Co., Ltd.92,238$130K0.01%+9,84913F-HRTimeline
Zuckerman Investment Group, LLC88,000$124K0.01%-15,00013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.87,954$124K<0.01%-21,20013F-HR/ATimelineGroup
J. Goldman & Co LP86,398$122K<0.01%013F-HRTimeline
Mariner, LLCin group Mariner, LLC84,140$119K<0.01%+16,69913F-HRTimelineGroup
Ballentine Partners, LLC82,084$116K<0.01%new13F-HRTimeline
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC79,494$112K<0.01%+33,35213F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…78,317$110K<0.01%+66,29413F-HRTimelineGroup
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP75,553$107K<0.01%+3,87313F-HRTimelineGroup
Poehling Capital Management, INC.75,501$106K0.02%013F-HRTimeline
CIBC WORLD MARKETS CORP74,800$105K<0.01%-56,43413F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS74,524$105K<0.01%-16,35913F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC71,951$101K<0.01%-103,38413F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…71,528$101K<0.01%013F-HRTimelineGroup
Velan Capital Investment Management LP70,000$98.7K0.1%-585,00013F-HRTimeline
Global Retirement Partners, LLC60,000$84.6K<0.01%13F-HRTimeline
HighTower Advisors, LLC59,749$84.2K<0.01%+23,00013F-HRTimeline
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…58,953$83.1K<0.01%013F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…54,913$77K<0.01%013F-HRTimeline
PINNACLE ASSOCIATES LTD50,505$71.2K<0.01%-2,00013F-HRTimeline
Pinnacle Wealth Management Advisory Gro…50,505$71.2K0.01%013F-HRTimeline
XPONANCE LLC46,950$66.2K<0.01%+2,51213F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV45,866$64.7K<0.01%+3,86313F-HRTimeline
111 Capital44,890$63.3K0.01%new13F-HRTimeline
WEDBUSH SECURITIES INC44,661$63K<0.01%-2,00013F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC43,178$60.9K<0.01%-1,67913F-HRTimelineGroup
FARALLON CAPITAL MANAGEMENT, L.L.C.43,000$60.6K<0.01%013F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Walleye Capital LLCin group Walleye Capital LLC40,039$56.5K<0.01%new13F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …40,012$56.4K<0.01%+36913F-HRTimelineGroup
Alternative Investment Advisors, LLC.39,278$55.4K0.03%013F-HRTimeline
MACKENZIE FINANCIAL CORP38,474$54.2K<0.01%+2,58613F-HRTimeline
Gotham Asset Management, LLC38,161$53.8K<0.01%new13F-HRTimeline
Corient Private Wealth LPin group Corient Private Wealth LP36,455$51.4K<0.01%-64813F-HR/ATimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…35,617$50.2K<0.01%-89,78213F-HRTimelineGroup
Dynamic Technology Lab Private Ltd34,960$50K0.01%new13F-HRTimeline
Forefront Analytics, LLC35,181$49.6K0.06%-27,79213F-HR/ATimeline
LOS ANGELES CAPITAL MANAGEMENT LLC34,174$48.2K<0.01%013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO34,073$48K<0.01%-25,49713F-HRTimelineGroup
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/34,008$48K<0.01%+1,04713F-HRTimelineGroup
IHT Wealth Management, LLC33,750$47.6K<0.01%013F-HRTimeline
Jasper Ridge Partners, L.P.32,472$45.8K<0.01%013F-HRTimeline
FLAGSHIP HARBOR ADVISORS, LLC32,210$45.4K<0.01%+2,54013F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC30,731$43.3K<0.01%-55,79713F-HRTimelineGroup
FIFTH LANE CAPITAL, LP30,000$42.3K0.05%+10,00013F-HRTimeline
Elmwood Wealth Management, Inc.28,200$39.8K0.02%-8513F-HRTimeline
Summit Financial Strategies, Inc.27,000$38.1K<0.01%new13F-HRTimeline
Sowell Financial Services LLC27,000$38.1K<0.01%013F-HRTimeline
TWIN PEAKS WEALTH ADVISORS, LLC27,644$37.3K0.01%+713F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC25,950$36.6K<0.01%+10,95013F-HR/ATimelineGroup
High Net Worth Advisory Group LLC25,520$36K0.01%013F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC25,254$35.6K<0.01%-576,83313F-HRTimelineGroup
Pathstone Holdings, LLCin group Pathstone Holdings, LLC25,187$35.5K<0.01%+7,91913F-HRTimelineGroup
StoneCrest Wealth Management, Inc.25,000$35.2K0.02%new13F-HRTimeline
Vishria Bird Financial Group, LLC24,265$34.2K0.01%013F-HRTimeline
Chicago Partners Investment Group LLC25,574$34K<0.01%-15,87413F-HRTimeline
Cetera Investment Advisers23,830$33.6K<0.01%-86913F-HRTimeline
PACES FERRY WEALTH ADVISORS, LLC23,500$33.1K0.02%013F-HRTimeline
Sanctuary Advisors, LLC23,131$32.6K<0.01%new13F-HRTimeline
Allied Investment Advisors, LLC20,959$29.6K0.01%013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC20,924$29.5K<0.01%+3,74813F-HRTimelineGroup
AMALGAMATED BANK20,482$29K<0.01%013F-HRTimeline
Frisch Financial Group, Inc.19,025$27K0.01%013F-HRTimeline
CIBC Asset Management Inc17,209$24.3K<0.01%013F-HRTimeline
ROVIN CAPITAL /UT/ /ADV17,270$24K0.01%013F-HRTimeline
Csenge Advisory Group15,474$23.5K<0.01%-31813F-HRTimeline
J.W. COLE ADVISORS, INC.16,230$22.9K<0.01%013F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC15,340$22K<0.01%-63,95613F-HRTimeline
GF FUND MANAGEMENT CO. LTD.15,480$21.8K<0.01%013F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…15,189$21.4K<0.01%new13F-HRTimelineGroup
INCEPTIONR LLC15,078$21.3K<0.01%-2,18013F-HRTimeline
COUNTRY TRUST BANK15,000$21.1K<0.01%new13F-HRTimeline
Farringdon Capital, Ltd.14,903$21K0.01%-16,74913F-HRTimeline
CAPTRUST FINANCIAL ADVISORS14,391$20.3K<0.01%-1,01413F-HRTimeline
HARBOUR INVESTMENTS, INC.13,165$18.6K<0.01%013F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC13,123$18K<0.01%-39,93013F-HRTimelineGroup
Seelaus Asset Management LLC12,500$17.6K0.02%new13F-HRTimeline
Piscataqua Savings Bank12,500$17.5K0.01%013F-HRTimeline
SIGNATUREFD, LLC12,214$17.2K<0.01%+2,05213F-HRTimeline
IEQ CAPITAL, LLC11,731$16.5K<0.01%new13F-HRTimeline
SBI Securities Co., Ltd.11,575$16.3K<0.01%+3,58613F-HRTimeline
Baird Financial Group, Inc.in group Baird Financial Group, Inc.11,500$16.2K<0.01%013F-HRTimelineGroup
Bernardo Wealth Planning LLC11,650$16K<0.01%013F-HRTimeline
Headlands Technologies LLC10,956$15.4K<0.01%-212,13913F-HRTimeline