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Disclosery

EXTR EXTREME NETWORKS INC

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COM (common), issuer CIK 1078271

304 managers (309 13F filers) reported a position in EXTR shares at 2025-09-30, 122,987,855 shares in all. 46 filers opened a position and 29 filers sold out during the quarter.

Managers
304
13F filers
309
New
46
Added
120
Reduced
90
Sold out
29
Shares held by filers
122,987,855

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
BlackRock, Inc.in group BlackRock, Inc.19,165,892$396M0.01%+561,47313F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC18,763,024$387M0.01%-99,20613F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP5,451,399$113M<0.01%+58,72613F-HRTimelineGroup
PARADIGM CAPITAL MANAGEMENT INC/NY4,932,500$102M4.42%-50,00013F-HRTimeline
VICTORY CAPITAL MANAGEMENT INC4,359,159$90M0.05%-656,85213F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC3,207,310$66.2M<0.01%+15,49013F-HRTimelineGroup
BARROW HANLEY MEWHINNEY & STRAUSS LLC3,021,934$62.4M0.2%-179,24713F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC2,735,077$56.5M0.01%+154,91113F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …2,658,393$54.9M0.03%+197,54213F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC2,318,634$47.9M0.02%-1,176,21713F-HRTimelineGroup
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P2,220,998$45.9M0.05%new13F-HRTimelineGroup
Trigran Investments, Inc.2,192,401$45.3M8.21%-130,97013F-HRTimeline
Nuveen, LLCin group TIAA1,931,479$39.9M0.01%-20,96213F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY1,592,831$32.9M<0.01%-134,08913F-HR/ATimelineGroup
RENAISSANCE TECHNOLOGIES LLC1,486,132$30.7M0.04%-62,06913F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,464,148$30.2M<0.01%+62,61013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,429,176$29.5M<0.01%-15,67413F-HRTimelineGroup
FMR LLCin group FMR LLC1,350,140$27.9M<0.01%+245,95513F-HRTimelineGroup
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC1,346,908$27.8M0.07%-551,69913F-HRTimeline
SOUTHERNSUN ASSET MANAGEMENT, LLC1,341,400$27.7M3.59%+224,39713F-HRTimeline
Trexquant Investment LP1,222,010$25.2M0.26%+563,15313F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\1,032,289$21.3M0.01%-646,07313F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.999,653$20.6M<0.01%+464,65213F-HRTimelineGroup
Qube Research & Technologies Ltd959,444$19.8M0.03%+619,15413F-HRTimeline
Connor, Clark & Lunn Investment Managem…949,139$19.6M0.06%+126,43313F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC944,084$19.5M<0.01%-50,00613F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding943,909$19.5M-110,594Timeline
Franklin Resourcesgroup of 2 filers holding940,230$19.4M-114,815Timeline
ALGERT GLOBAL LLC933,067$19.3M0.32%+309,16913F-HR/ATimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC909,334$18.8M0.01%-588,42813F-HRTimelineGroup
Penn Capital Management Company, LLC869,517$18M1.38%-248,50413F-HRTimeline
Impax Asset Management Group plcin group Impax Asset Management Group …855,178$17.7M0.1%013F-HRTimelineGroup
Public Sector Pension Investment Board841,160$17.4M0.06%+61,16813F-HRTimeline
COOPER CREEK PARTNERS MANAGEMENT LLC838,178$17.3M0.65%+415,29613F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp805,213$16.6M<0.01%-11,47913F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.772,602$16M0.01%+193,55313F-HRTimelineGroup
Alyeska Investment Group, L.P.in group Alyeska Investment Group, L.P.739,345$15.3M0.05%+98,79113F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC726,781$15M0.02%+455,64713F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.682,695$14.1M<0.01%-361,91213F-HRTimeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.670,602$13.8M0.02%-285,43713F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding638,705$13.2M-21,988Timeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC574,455$11.9M<0.01%+81,69913F-HRTimelineGroup
LYELL WEALTH MANAGEMENT, LP568,991$11.7M0.87%013F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND561,660$11.6M0.01%-151,14713F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO547,675$11.3M<0.01%-294,08613F-HR/ATimelineGroup
UBS Group AGgroup of 2 filers holding538,852$11.1M-288,066Timeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS502,313$10.4M0.01%+279,98913F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD472,066$9.75M0.02%+43513F-HRTimeline
HRT FINANCIAL LP466,964$9.64M0.04%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/458,911$9.48M<0.01%+169,10013F-HR/ATimelineGroup
Penserra Capital Management LLCin group Penserra Capital Management L…449,366$9.28M0.11%-130,99713F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth383,261$8.62M0.01%+36,35613F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…416,483$8.6M0.01%+63,93613F-HRTimelineGroup
Mirador Capital Partners LP405,766$8.38M1.19%+56413F-HRTimeline
LMR Partners LLPin group LMR Partners LLP400,000$8.26M0.11%new13F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC391,121$8.08M<0.01%-342,05613F-HR/ATimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC382,868$7.91M0.02%+299,54613F-HRTimelineGroup
RHUMBLINE ADVISERS377,366$7.79M0.01%-3,94113F-HRTimeline
ExodusPoint Capital Management, LP359,076$7.41M0.1%+99,46613F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP358,248$7.4M0.01%-55,59313F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC354,133$7.31M0.01%+151,87013F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc351,093$7.25M<0.01%-12,42513F-HRTimelineGroup
Hillsdale Investment Management Inc.332,580$6.87M0.21%+332,13013F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA327,548$6.76M<0.01%+196,04213F-HRTimelineGroup
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…323,200$6.67M0.01%-559,60013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC318,900$6.59M0.08%+240,15313F-HR/ATimelineGroup
Engineers Gate Manager LP314,300$6.49M0.07%+10,35113F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC299,071$6.17M0.01%+271,56713F-HRTimelineGroup
South Street Advisors LLC296,416$6.12M0.8%+12,15113F-HRTimeline
Edgestream Partners, L.P.290,514$6M0.18%+193,89713F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP284,840$5.88M<0.01%+238,35413F-HRTimelineGroup
Circumference Group LLC270,000$5.58M6.55%-125,00013F-HRTimeline
Swiss National Bank258,100$5.33M<0.01%+4,50013F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC257,215$5.31M0.05%+82,24613F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC249,204$5.15M<0.01%+159,17213F-HRTimelineGroup
Lisanti Capital Growth, LLC248,712$5.14M1.26%+104,55713F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC237,641$4.91M<0.01%+51,26813F-HRTimelineGroup
Baird Financial Group, Inc.in group Baird Financial Group, Inc.229,714$4.74M0.01%new13F-HRTimelineGroup
Capital Advantage, Inc.225,475$4.66M0.7%013F-HRTimeline
BROOKTREE CAPITAL MANAGEMENT225,213$4.65M2.96%+5,17113F-HRTimeline
Schonfeld Strategic Advisors LLC195,516$4.04M0.03%+182,69513F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)174,800$3.61M0.01%new13F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC158,817$3.28M0.5%+5,51713F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC142,219$2.94M0.01%+76,84213F-HRTimelineGroup
Ballast Asset Management, LP141,008$2.91M1.33%-1813F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO138,174$2.85M<0.01%+45,29913F-HRTimelineGroup
D.A. DAVIDSON & CO.136,000$2.81M0.02%013F-HRTimeline
Counterpoint Mutual Funds LLC132,439$2.73M0.22%+88,83513F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/131,411$2.71M<0.01%+6,72813F-HRTimeline
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co132,592$2.7M<0.01%-9,89013F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…122,073$2.52M<0.01%+613F-HRTimeline
CANADA PENSION PLAN INVESTMENT BOARD115,600$2.39M<0.01%+101,30013F-HRTimeline
Quantbot Technologies LP114,634$2.37M0.06%-23,61813F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN114,325$2.36M<0.01%+21,59813F-HRTimelineGroup
PANAGORA ASSET MANAGEMENT INC113,661$2.35M0.01%013F-HRTimeline
CenterBook Partners LP112,799$2.33M0.12%-111,23213F-HRTimeline
Vontobel Holding Ltd.in group Vontobel Holding Ltd.106,490$2.2M0.01%new13F-HRTimelineGroup
IRONWOOD INVESTMENT MANAGEMENT LLC103,460$2.14M0.93%-60413F-HRTimeline
SummitTX Capital, L.P.103,011$2.13M0.09%-59,10213F-HRTimeline
FOX RUN MANAGEMENT, L.L.C.101,900$2.1M0.33%+17,62413F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.95,290$2.03M<0.01%+65,42613F-HRTimelineGroup
Calamos Advisors LLCin group Calamos Advisors LLC96,829$2M0.01%+22,64113F-HRTimelineGroup
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…95,275$1.97M<0.01%-2,64513F-HRTimelineGroup
Legato Capital Management LLC94,260$1.95M0.21%+21,12013F-HRTimeline
Aquatic Capital Management LLC88,104$1.82M0.03%+79,03813F-HRTimeline
TWINBEECH CAPITAL LP82,646$1.71M0.07%new13F-HRTimeline
Man Group plcin group Man Group plc82,016$1.69M<0.01%+66,98413F-HRTimelineGroup
Y-Intercept (Hong Kong) Ltd80,214$1.66M0.04%+7,79213F-HRTimeline
ICON ADVISERS INC/CO80,000$1.65M0.36%013F-HR/ATimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…79,694$1.65M<0.01%-1,20013F-HRTimeline
Axecap Investments, LLC77,909$1.61M0.99%new13F-HRTimeline
SG Americas Securities, LLC76,651$1.58M0.01%-7,97813F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…76,617$1.58M0.01%-2,18713F-HRTimelineGroup
State of Alaska, Department of Revenue72,795$1.5M0.02%-6,45013F-HRTimeline
State of Tennessee, Department of Treas…71,601$1.48M<0.01%+8,56813F-HRTimeline
Dynamic Technology Lab Private Ltd70,987$1.47M0.25%+38,51013F-HRTimeline
CITIGROUP INCin group CITIGROUP INC69,707$1.44M<0.01%-157,16513F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…69,607$1.44M0.02%-25,50413F-HRTimelineGroup
MACKENZIE FINANCIAL CORP69,042$1.43M<0.01%-75613F-HRTimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC67,404$1.39M<0.01%+37,77013F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL67,212$1.39M0.01%-137,31013F-HR/ATimeline
Illinois Municipal Retirement Fund66,714$1.38M0.02%-40213F-HRTimeline
LPL Financial LLC65,764$1.36M<0.01%+20,99513F-HRTimeline
Gotham Asset Management, LLC65,096$1.34M0.01%+52,21613F-HRTimeline
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …64,717$1.34M<0.01%-4,87813F-HRTimelineGroup
Smith Group Asset Management, LLC64,000$1.32M0.08%013F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson61,373$1.27M<0.01%013F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…61,335$1.27M<0.01%-11,02913F-HRTimelineGroup
DRW Securities, LLC61,270$1.27M0.07%+30,34313F-HRTimeline
Louisiana State Employees Retirement Sy…60,700$1.25M0.02%-1,50013F-HRTimeline
DARK FOREST CAPITAL MANAGEMENT LP58,902$1.22M0.05%+5,60213F-HR/ATimeline
Headlands Technologies LLC56,001$1.16M0.09%+17,16513F-HRTimeline
Integrated Quantitative Investments LLC52,227$1.08M0.31%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP49,789$1.03M0.09%+13,31013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS48,450$1M<0.01%+14,06513F-HRTimeline
SkyView Investment Advisors, LLC48,018$992K0.13%+32313F-HRTimeline
STRS OHIO47,200$975K<0.01%+30,10013F-HRTimeline
OCCUDO QUANTITATIVE STRATEGIES LP44,175$912K0.11%-2,45813F-HRTimeline
Creative Planningin group Creative Planning43,364$895K<0.01%+8,62313F-HRTimelineGroup
CAPSTONE INVESTMENT ADVISORS, LLCin group CAPSTONE INVESTMENT ADVISORS,…42,390$875K0.01%+12,26813F-HRTimelineGroup
Handelsbanken Fonder AB41,700$861K<0.01%013F-HRTimeline
Villanova Investment Management Co LLC40,825$843K0.58%-37,81813F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC40,794$842K0.01%-8,75313F-HRTimeline
Amundiin group Amundi41,571$838K<0.01%+1,31113F-HRTimelineGroup
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…40,000$826K0.06%013F-HRTimelineGroup
Zurcher Kantonalbank (Zurich Cantonalba…39,735$821K<0.01%+3,08713F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM39,405$814K<0.01%+68513F-HRTimeline
ROYCE & ASSOCIATES LP39,263$811K0.01%-24,85013F-HRTimeline
COMERICA BANK37,800$781K<0.01%-8,64113F-HRTimeline
AMALGAMATED BANK37,784$780K0.01%-413F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…37,569$776K0.01%-89613F-HRTimeline
Police & Firemen's Retirement System of…36,502$754K0.01%+7,14613F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…36,038$744K<0.01%013F-HRTimeline
Elo Mutual Pension Insurance Co34,902$721K0.01%new13F-HRTimeline
SIRIOS CAPITAL MANAGEMENT L P33,797$698K0.09%-132,92213F-HRTimeline
Investors Towarzystwo Funduszy Inwestyc…33,700$696K0.28%-13,30013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…33,633$695K<0.01%-55713F-HRTimeline
Versor Investments LP32,000$661K0.12%new13F-HRTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP31,553$652K<0.01%-6,03413F-HRTimelineGroup
CAPITAL FUND MANAGEMENT S.A.30,548$631K0.01%new13F-HRTimeline
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.in group LANDSCAPE CAPITAL MANAGEMENT,…30,090$621K0.04%new13F-HRTimelineGroup
NJ State Employees Deferred Compensatio…30,000$620K0.07%013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND29,733$614K0.01%-60013F-HRTimeline
Ensign Peak Advisors, Inc28,107$580K<0.01%-19,80013F-HR/ATimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC27,456$567K<0.01%+1,66513F-HRTimelineGroup
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …27,225$562K<0.01%+11,32513F-HRTimelineGroup
KLP KAPITALFORVALTNING AS27,200$562K<0.01%013F-HRTimeline
Semanteon Capital Management, LP27,093$559K0.7%new13F-HRTimeline
INCEPTIONR LLC26,907$556K0.13%new13F-HRTimeline
NorthCrest Asset Manangement, LLC26,106$523K0.01%+7,73813F-HRTimeline
OneDigital Investment Advisors LLC25,186$520K0.01%-45213F-HRTimeline
Armor Investment Advisors, LLC25,145$519K0.16%013F-HRTimeline
ProShare Advisors LLC24,874$514K<0.01%-4,61613F-HRTimeline
Verition Fund Management LLC23,712$490K<0.01%-38,40213F-HRTimeline
Green Alpha Advisors, LLC23,352$482K0.47%-1,40513F-HRTimeline
Employees Retirement System of Texas22,868$472K<0.01%013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC22,783$470K<0.01%+68313F-HRTimelineGroup
Dash Acquisitions Inc.26,054$469K0.09%+2,59213F-HRTimeline
Centurion Wealth Management LLC22,200$458K0.1%+20013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd21,766$449K0.02%new13F-HRTimelineGroup
Central Pacific Bank - Trust Division21,504$444K0.05%013F-HRTimeline
Round Rock Advisors LLC20,920$442K0.07%new13F-HRTimeline
Kovack Advisors, Inc.21,195$438K0.04%-7,94513F-HRTimeline
Graham Capital Management, L.P.21,005$434K0.02%+6,53513F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…20,503$423K<0.01%+3,06713F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC19,802$407K<0.01%-42,01213F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP19,379$400K<0.01%-1,95413F-HRTimelineGroup
Neo Ivy Capital Management19,270$398K0.1%new13F-HRTimeline
State of Wyoming19,249$397K0.05%new13F-HRTimeline
Entropy Technologies, LP19,189$396K0.03%new13F-HRTimeline
Vestcor Inc19,034$393K0.01%-3,42813F-HRTimeline
Maryland State Retirement & Pension Sys…18,986$392K0.01%-20,15013F-HRTimeline
OMERS ADMINISTRATION Corp18,600$384K<0.01%new13F-HRTimeline
Bienville Capital Management, LLC18,600$384K0.07%013F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC18,345$379K<0.01%013F-HRTimeline
Quantinno Capital Management LP17,973$371K<0.01%+36513F-HRTimeline
IMC-Chicago, LLC17,966$371K0.01%+4,25413F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC17,596$363K<0.01%+32813F-HRTimelineGroup
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…16,957$350K<0.01%-1,80313F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC16,765$346K<0.01%+2,12313F-HRTimelineGroup