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Disclosery

EXTR EXTREME NETWORKS INC

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COM (common), issuer CIK 1078271

333 managers (343 13F filers) reported a position in EXTR shares at 2026-06-30, 128,520,936 shares in all. 74 filers opened a position and 31 filers sold out during the quarter.

Managers
333
13F filers
343
New
74
Added
105
Reduced
125
Sold out
31
Shares held by filers
128,520,936

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.20,842,155$675M0.01%+652,27313F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding19,687,162$637M-810,428Timeline
STATE STREET CORPin group STATE STREET CORP6,137,138$199M0.01%-312,73113F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/5,325,298$172M0.02%+5,170,94713F-HRTimeline
PARADIGM CAPITAL MANAGEMENT INC/NY4,241,300$137M3.74%-993,60013F-HRTimeline
FMR LLCin group FMR LLC3,510,085$114M<0.01%+186,12513F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC3,405,660$110M0.01%+80,50813F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …3,358,416$109M0.05%+110,73613F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC3,006,288$97.3M0.01%-123,32313F-HRTimelineGroup
LOOMIS SAYLES & CO L Pin group LOOMIS SAYLES & CO L P2,536,716$82.1M0.1%-178,96713F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC2,481,691$80.3M0.04%+2,328,31913F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC1,862,580$60.3M0.08%-213,50013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY1,808,176$58.5M<0.01%+13,67913F-HRTimelineGroup
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC1,699,543$55M0.01%+882,01413F-HRTimelineGroup
SOUTHERNSUN ASSET MANAGEMENT, LLC1,685,450$54.6M7.34%-612,48313F-HRTimeline
Boston Partnersin group Boston Trust Walden Corp1,673,962$54.3M0.05%new13F-HRTimelineGroup
Trigran Investments, Inc.1,507,325$48.8M8.95%-1,340,04513F-HRTimeline
Nuveen, LLCin group TIAA1,483,289$48M0.01%-93,22013F-HRTimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP1,461,747$47.3M0.01%+59,24013F-HRTimelineGroup
Shannon River Fund Management LLC1,424,095$46.1M4.11%+111,03413F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/1,406,591$45.5M<0.01%+649,51913F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co1,380,240$44.7M0.01%-114,48213F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding1,053,460$34.1M+377,078Timeline
PANAGORA ASSET MANAGEMENT INC1,031,475$33.4M0.1%+568,32913F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC1,028,891$33.3M0.02%+869,76513F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC975,210$31.6M0.04%-24,31013F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.938,182$30.4M0.02%-532,26613F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC923,559$29.9M0.02%new13F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC847,803$27.4M0.02%-841,42613F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP812,553$26.3M0.02%+435,41913F-HRTimelineGroup
LORD, ABBETT & CO. LLC809,321$26.2M0.07%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS745,841$24.1M0.01%+277,24513F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp738,211$23.9M<0.01%-4,68713F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.699,203$22.6M<0.01%+32,29013F-HRTimelineGroup
COOPER CREEK PARTNERS MANAGEMENT LLC690,092$22.3M0.93%-148,08613F-HRTimeline
Connor, Clark & Lunn Investment Managem…673,134$21.8M0.04%-47,77113F-HRTimeline
ALLIANCEBERNSTEIN L.P.1,430,310$21.6M0.01%-172,16013F-HRTimeline
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA659,194$21.3M0.09%-12,48213F-HRTimelineGroup
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC655,961$21.2M0.01%-56713F-HRTimelineGroup
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.635,142$20.6M0.03%-419,23413F-HRTimelineGroup
Penserra Capital Management LLCin group Penserra Capital Management L…594,878$19.3M0.15%-15,79513F-HRTimelineGroup
Impax Asset Management Group plcin group Impax Asset Management Group …593,678$19.2M0.13%-371,50013F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…582,916$18.9M0.03%+233,37613F-HR/ATimelineGroup
LYELL WEALTH MANAGEMENT, LP582,345$18.9M1.16%013F-HRTimeline
Defiance ETFs, LLC594,878$18.7M0.26%-15,79513F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC537,573$17.4M<0.01%-2,83213F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC534,750$17.3M0.01%+31,50913F-HRTimelineGroup
Franklin Resourcesgroup of 2 filers holding531,141$17.2M-270,758Timeline
SEB Asset Management AB476,442$15.4M0.06%-332,01913F-HRTimeline
Public Sector Pension Investment Board449,257$14.5M0.04%-277,11613F-HR/ATimeline
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC426,041$13.8M<0.01%+143,63813F-HRTimelineGroup
Mirador Capital Partners LP414,824$13.4M1.64%-2,09213F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO402,715$13.1M<0.01%+117,84913F-HRTimelineGroup
PEREGRINE CAPITAL MANAGEMENT LLC376,230$12.2M0.4%new13F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP365,422$11.8M0.01%+83,43713F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC364,743$11.8M0.01%+227,90513F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\347,234$11.2M<0.01%-311,93913F-HRTimelineGroup
Hillsdale Investment Management Inc.338,840$11M0.25%+30,18013F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO330,554$10.7M0.01%-30,31213F-HRTimelineGroup
Focus Partners Wealthin group Focus Partners Wealth324,620$10.5M0.01%-67,45113F-HRTimelineGroup
RHUMBLINE ADVISERS312,763$10.1M0.01%-49,98613F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc300,692$9.73M<0.01%-4,26013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD293,113$9.49M0.02%-121,77413F-HRTimeline
HEALTHCARE OF ONTARIO PENSION PLAN TRUS…289,000$9.35M0.01%new13F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC283,976$9.19M0.01%+268,03513F-HRTimelineGroup
HRT FINANCIAL LP282,668$9.15M0.02%-17,46413F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC268,268$8.68M0.01%-72,09413F-HRTimelineGroup
Swiss National Bank262,700$8.5M<0.01%-70013F-HRTimeline
Trexquant Investment LP255,114$8.26M0.05%-440,53813F-HRTimeline
MACKENZIE FINANCIAL CORP241,551$7.82M0.01%-89,72813F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC241,153$7.81M<0.01%+9,79213F-HRTimelineGroup
TUDOR INVESTMENT CORP ET AL236,679$7.66M0.03%-80,31213F-HRTimeline
OP Asset Management Ltd227,830$7.37M0.08%-314,13813F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding227,407$7.36M+148,754Timeline
Circumference Group LLC225,100$7.29M15.82%-130,00013F-HRTimeline
BROOKTREE CAPITAL MANAGEMENT223,636$7.24M4.72%+94813F-HRTimeline
Capital Advantage, Inc.219,308$7.1M0.87%-19,52113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA211,331$6.84M<0.01%+4513F-HRTimelineGroup
Edgestream Partners, L.P.206,889$6.7M0.2%new13F-HRTimeline
Lisanti Capital Growth, LLC183,095$5.93M1.3%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC179,787$5.82M0.05%-1,32313F-HRTimeline
ICON ADVISERS INC/CO170,000$5.5M1.04%+90,00013F-HRTimeline
Engineers Gate Manager LP164,025$5.31M0.07%-345,21913F-HRTimeline
IRONWOOD INVESTMENT MANAGEMENT LLC161,853$5.24M1.81%+49113F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…158,215$5.12M<0.01%-4,28513F-HR/ATimeline
CAPITAL FUND MANAGEMENT S.A.148,693$4.81M0.03%+81,03413F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN139,410$4.51M<0.01%+80,02613F-HRTimelineGroup
Ballast Asset Management, LP138,328$4.48M1.79%-1,34013F-HRTimeline
D.A. DAVIDSON & CO.128,000$4.14M0.02%-7,00013F-HRTimeline
Numerai GP LLC127,025$4.11M0.34%new13F-HRTimeline
Amundiin group Amundi125,186$4.05M<0.01%-251,78413F-HRTimelineGroup
NOMURA ASSET MANAGEMENT CO LTDgroup of 2 filers holding122,433$3.96MnewTimeline
Torrey Growth & Income Advisors116,015$3.77M1.28%new13F-HRTimeline
CITIGROUP INCin group CITIGROUP INC110,801$3.59M<0.01%-4,02913F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co104,971$3.39M0.01%-4,24813F-HRTimelineGroup
CenterBook Partners LP101,937$3.3M0.16%-17,29913F-HRTimeline
Creative Planningin group Creative Planning94,653$3.06M<0.01%+28,81313F-HRTimelineGroup
Madison Asset Management, LLCin group Madison Asset Management, LLC93,797$3.04M0.04%new13F-HRTimelineGroup
Legato Capital Management LLC92,795$3M0.25%+43,11513F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…90,586$2.93M0.04%-50,36113F-HRTimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …90,536$2.93M0.03%-10,82813F-HRTimelineGroup
LPL Financial LLC85,897$2.78M<0.01%+35,95413F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…85,877$2.78M<0.01%-3,74413F-HRTimelineGroup
Penbrook Management LLC84,025$2.72M1.73%+50013F-HRTimeline
State of Alaska, Department of Revenue80,600$2.61M0.03%-23,50513F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC80,421$2.6M0.01%+62,66113F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…79,694$2.58M<0.01%+4,35513F-HRTimeline
CASTLEARK MANAGEMENT LLC77,040$2.49M0.07%new13F-HRTimeline
Aurora Investment Counsel75,864$2.46M1.26%-95,00213F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…75,642$2.45M0.01%+5,38913F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC73,350$2.37M<0.01%-14,87213F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …71,959$2.33M<0.01%+11,72913F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…67,207$2.17M<0.01%+33,09813F-HRTimelineGroup
NORDEA INVESTMENT MANAGEMENT ABin group NORDEA INVESTMENT MANAGEMENT …65,430$2.15M<0.01%new13F-HRTimelineGroup
Illinois Municipal Retirement Fund65,780$2.13M0.02%+67713F-HRTimeline
DIVERSIFIED TRUST CO65,176$2.11M0.03%+33,64813F-HRTimeline
SIRIOS CAPITAL MANAGEMENT L P65,158$2.11M0.26%-117,23813F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…64,907$2.1M<0.01%+15,06713F-HRTimeline
Smith Group Asset Management, LLC64,000$2.07M0.08%013F-HRTimeline
State of Tennessee, Department of Treas…62,060$2.01M0.01%-18,54513F-HRTimeline
Jupiter Topco LLCin group Janus Henderson61,373$1.99M<0.01%13F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…59,844$1.94M<0.01%-2,77713F-HRTimelineGroup
Louisiana State Employees Retirement Sy…57,300$1.85M0.03%-2,20013F-HR/ATimeline
Bridgewater Associates, LP55,342$1.79M0.01%+35,83013F-HRTimeline
Headlands Technologies LLC51,104$1.65M0.18%-1,08113F-HRTimeline
Handelsbanken Fonder AB50,500$1.64M<0.01%+8,80013F-HRTimeline
Polymer Capital Management (US) LLC47,600$1.54M0.23%new13F-HRTimeline
CAXTON ASSOCIATES LLP46,848$1.52M0.03%new13F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND46,465$1.5M<0.01%+7,30013F-HRTimeline
Horizon Investments, LLC45,721$1.48M0.02%new13F-HRTimeline
WINTON GROUP Ltdin group WINTON GROUP Ltd43,464$1.41M0.05%+33,27013F-HRTimelineGroup
Freestone Grove Partners LP43,058$1.39M0.01%-24,94913F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP42,946$1.39M0.01%+10813F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…42,330$1.37M<0.01%new13F-HRTimelineGroup
TEACHER RETIREMENT SYSTEM OF TEXAS40,387$1.31M<0.01%-78,15713F-HRTimeline
State of Wyoming40,118$1.3M0.13%+10,17613F-HRTimeline
Police & Firemen's Retirement System of…38,327$1.24M0.01%+1,82513F-HRTimeline
LANARK FINANCIAL, INC.37,756$1.22M0.08%-4,15813F-HRTimeline
BOOTHBAY FUND MANAGEMENT, LLC36,752$1.19M0.02%new13F-HRTimeline
Counterpoint Mutual Funds LLC36,640$1.19M0.12%013F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM36,123$1.17M0.01%-60613F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…36,038$1.17M<0.01%013F-HRTimeline
Savant Capital, LLC35,929$1.16M<0.01%new13F-HRTimeline
ARGENT CAPITAL MANAGEMENT LLC35,391$1.15M0.04%new13F-HRTimeline
New Age Alpha Advisors, LLC35,278$1.14M0.05%new13F-HRTimeline
AMALGAMATED BANK35,107$1.14M0.01%-3,47713F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC35,031$1.13M0.01%-50213F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.34,489$1.12M0.08%+7,85713F-HRTimeline
STRS OHIO34,200$1.11M<0.01%-19,10013F-HRTimeline
Kovack Advisors, Inc.34,025$1.07M0.05%-9,23013F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…32,902$1.06M0.01%013F-HRTimeline
KLP KAPITALFORVALTNING AS32,500$1.05M<0.01%+3,90013F-HRTimeline
Quantinno Capital Management LP32,462$1.05M<0.01%+6,24413F-HRTimeline
ROYCE & ASSOCIATES LP32,402$1.05M0.01%+6,79613F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …31,697$1.03M<0.01%+1,90913F-HRTimelineGroup
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…31,012$1M<0.01%-2,19213F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND29,733$962K0.01%-1,00013F-HRTimeline
Altshuler Shaham Ltd28,252$915K0.01%new13F-HRTimeline
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…28,069$909K<0.01%-2,54013F-HRTimelineGroup
Aquatic Capital Management LLC27,879$902K0.03%-34,72213F-HRTimeline
NorthCrest Asset Manangement, LLC26,801$881K0.02%+31613F-HRTimeline
Callan Family Office, LLCin group Callan Family Office, LLC26,848$869K0.02%new13F-HRTimelineGroup
Sciencast Management LP26,489$857K0.18%new13F-HRTimeline
CHOREO, LLC26,228$849K0.01%+40513F-HRTimeline
Cornerstone Investment Partners, LLC26,201$848K0.03%new13F-HRTimeline
Tidal Investments LLCin group Tidal Investments LLC25,912$839K<0.01%-239,05913F-HRTimelineGroup
Corient Private Wealth LPin group Corient Private Wealth LP25,837$836K<0.01%+5,00713F-HR/ATimelineGroup
Quantbot Technologies LP25,468$824K0.03%new13F-HRTimeline
Armor Investment Advisors, LLC25,145$814K0.26%013F-HRTimeline
Green Alpha Advisors, LLC24,725$800K0.54%-25213F-HRTimeline
Verdence Capital Advisors LLC24,605$796K0.04%-66113F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC24,607$790K<0.01%-23713F-HRTimelineGroup
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.24,055$779K0.01%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC23,918$774K0.01%new13F-HRTimelineGroup
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…22,967$743K0.29%new13F-HRTimelineGroup
Simplicity Wealth,LLC22,495$728K0.02%+5,24113F-HRTimeline
Unique Wealth Strategies, LLC22,395$725K0.26%new13F-HRTimeline
Mariner, LLCin group Mariner, LLC22,189$718K<0.01%new13F-HRTimelineGroup
Lido Advisors, LLCin group Lido Advisors, LLC21,942$710K<0.01%-4113F-HRTimelineGroup
Empowered Funds, LLC21,940$710K<0.01%new13F-HRTimeline
SIMPLEX TRADING, LLC21,802$706K0.02%new13F-HRTimeline
Dash Acquisitions Inc.28,312$691K0.14%+1,88013F-HRTimeline
Steward Partners Investment Advisory, L…21,249$688K<0.01%+21,24713F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…20,560$666K<0.01%013F-HRTimelineGroup
MIRABELLA FINANCIAL SERVICES LLP20,028$648K0.06%+2,83413F-HRTimeline
Marex Group Ltdin group Marex Group Ltd20,000$647K<0.01%new13F-HRTimelineGroup
Maryland State Retirement & Pension Sys…19,040$616K0.01%-39613F-HRTimeline
Vestcor Inc19,034$616K0.02%013F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P18,778$608K0.01%-16,83313F-HRTimeline
ProShare Advisors LLC18,541$600K<0.01%-2,24613F-HRTimeline
HOWE & RUSLING INC17,394$563K0.03%-6,71113F-HRTimeline
NEUBERGER BERMAN GROUP LLCin group NEUBERGER BERMAN GROUP LLC17,369$562K<0.01%+84013F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC16,945$549K<0.01%new13F-HRTimelineGroup
M&T Bank Corpin group M&T Bank Corp16,460$533K<0.01%-3,66013F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…41,772$527K<0.01%+12,08313F-HRTimeline
SG Americas Securities, LLC16,197$524K<0.01%-14,22613F-HRTimeline
Holocene Advisors, LP15,610$505K<0.01%-55,90113F-HRTimeline
Magnetar Financial LLCin group Magnetar Financial LLC15,579$504K<0.01%-62,49613F-HRTimelineGroup
Pacer Advisors, Inc.15,395$498K<0.01%-2,50313F-HRTimeline
Swiss Life Asset Management Ltdin group Swiss Life Asset Management L…15,091$488K<0.01%-2,97713F-HRTimelineGroup