EXTREME NETWORKS INC (EXTR) — Institutional Holders, Q2 2026
344 institutional investment managers reported a EXTR position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $4.1B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
EXTR in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- PRICE T ROWE ASSOCIATESAdded · +5,170,947 sh+$167.4M
- AMERICAN CENTURY COMPANIESAdded · +2,328,319 sh+$75.4M
- Boston PartnersNew · +1,673,962 sh+$54.2M
- JANE STREET GROUPNew · +923,559 sh+$29.9M
- AMERIPRISE FINANCIALAdded · +882,014 sh+$28.6M
Biggest sellers
- Alyeska Investment Group, L.P.Sold out · -2,786,671 sh-$90.2M
- BARROW HANLEY MEWHINNEY & STRAUSSTrimmed · -2,651,244 sh-$85.8M
- Trigran InvestmentsTrimmed · -1,340,045 sh-$43.4M
- PARADIGM CAPITAL MANAGEMENTTrimmed · -993,600 sh-$32.2M
- VICTORY CAPITAL MANAGEMENTTrimmed · -841,426 sh-$27.2M
EXTR 13F holders ranked 1–100 of 344
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 20,842,155 sh | 20,842,155 | $674.7M | 0.01% | +3.2% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT#2 · 12,841,357 sh | 12,841,357 | $415.7M | 0.02% | -5.4% |
| 3 | STATE STREET#3 · 6,137,138 sh | 6,137,138 | $198.6M | <0.01% | -4.8% |
| 4 | VANGUARD CAPITAL MANAGEMENT#4 · 5,680,918 sh | 5,680,918 | $183.9M | <0.01% | -1.7% |
| 5 | PRICE T ROWE ASSOCIATES#5 · 5,325,298 sh | 5,325,298 | $172.4M | 0.02% | +3350.1% |
| 6 | PARADIGM CAPITAL MANAGEMENT#6 · 4,241,300 sh | 4,241,300 | $137.3M | 3.74% | -19.0% |
| 7 | FMR#7 · 3,510,085 sh | 3,510,085 | $113.6M | <0.01% | +5.6% |
| 8 | GEODE CAPITAL MANAGEMENT#8 · 3,405,660 sh | 3,405,660 | $110.3M | <0.01% | +2.4% |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#9 · 3,358,416 sh | 3,358,416 | $108.7M | 0.05% | +3.4% |
| 10 | GOLDMAN SACHS GROUP#10 · 3,006,288 sh | 3,006,288 | $97.3M | <0.01% | -3.9% |
| 11 | LOOMIS SAYLES & L P#11 · 2,536,716 sh | 2,536,716 | $82.1M | 0.10% | -6.6% |
| 12 | AMERICAN CENTURY COMPANIES#12 · 2,481,691 sh | 2,481,691 | $80.3M | 0.04% | +1518.1% |
| 13 | RENAISSANCE TECHNOLOGIES#13 · 1,862,580 sh | 1,862,580 | $60.3M | 0.08% | -10.3% |
| 14 | MORGAN STANLEY#14 · 1,808,176 sh | 1,808,176 | $58.5M | <0.01% | +0.8% |
| 15 | AMERIPRISE FINANCIAL#15 · 1,699,543 sh | 1,699,543 | $55.0M | 0.01% | +107.9% |
| 16 | SOUTHERNSUN ASSET MANAGEMENT#16 · 1,685,450 sh | 1,685,450 | $54.6M | 7.34% | -26.7% |
| 17 | Boston Partners#17 · 1,673,962 sh | 1,673,962 | $54.3M | 0.05% | New |
| 18 | Trigran Investments#18 · 1,507,325 sh | 1,507,325 | $48.8M | 8.95% | -47.1% |
| 19 | Nuveen#19 · 1,483,289 sh | 1,483,289 | $48.0M | 0.01% | -5.9% |
| 20 | NORTHERN#20 · 1,461,747 sh | 1,461,747 | $47.3M | <0.01% | +4.2% |
| 21 | Shannon River Fund Management#21 · 1,424,095 sh | 1,424,095 | $46.1M | 4.11% | +8.5% |
| 22 | BANK OF AMERICA#22 · 1,406,591 sh | 1,406,591 | $45.5M | <0.01% | +85.8% |
| 23 | CHARLES SCHWAB INVESTMENT MANAGEMENT#23 · 1,380,240 sh | 1,380,240 | $44.7M | <0.01% | -7.7% |
| 24 | PANAGORA ASSET MANAGEMENT#24 · 1,031,475 sh | 1,031,475 | $33.4M | 0.10% | +122.7% |
| 25 | MILLENNIUM MANAGEMENT#25 · 1,028,891 sh | 1,028,891 | $33.3M | 0.01% | +546.6% |
| 26 | ACADIAN ASSET MANAGEMENT#26 · 975,210 sh | 975,210 | $31.6M | 0.04% | -2.4% |
| 27 | D. E. Shaw#27 · 938,182 sh | 938,182 | $30.4M | 0.01% | -36.2% |
| 28 | VANGUARD FIDUCIARY#28 · 929,038 sh | 929,038 | $30.1M | <0.01% | +0.1% |
| 29 | JANE STREET GROUP#29 · 923,559 sh | 923,559 | $29.9M | <0.01% | New |
| 30 | VICTORY CAPITAL MANAGEMENT#30 · 847,803 sh | 847,803 | $27.4M | 0.02% | -49.8% |
| 31 | TWO SIGMA INVESTMENTS#31 · 812,553 sh | 812,553 | $26.3M | 0.02% | +115.5% |
| 32 | LORD, ABBETT#32 · 809,321 sh | 809,321 | $26.2M | 0.07% | New |
| 33 | BNP PARIBAS FINANCIAL MARKETS#33 · 745,841 sh | 745,841 | $24.1M | <0.01% | +59.2% |
| 34 | Bank of New York Mellon#34 · 738,211 sh | 738,211 | $23.9M | <0.01% | -0.6% |
| 35 | UBS Group AG#35 · 708,925 sh | 708,925 | $22.9M | <0.01% | +118.0% |
| 36 | Invesco Ltd.#36 · 699,203 sh | 699,203 | $22.6M | <0.01% | +4.8% |
| 37 | COOPER CREEK PARTNERS MANAGEMENT#37 · 690,092 sh | 690,092 | $22.3M | 0.53% | -17.7% |
| 38 | Connor, Clark & Lunn Investment Management Ltd.#38 · 673,134 sh | 673,134 | $21.8M | 0.04% | -6.6% |
| 39 | ALLIANCEBERNSTEIN L.P.#39 · 1,430,310 sh | 1,430,310 | $21.6M | <0.01% | -10.7% |
| 40 | GLENMEDE NA#40 · 659,194 sh | 659,194 | $21.3M | 0.09% | -1.9% |
| 41 | PRINCIPAL FINANCIAL GROUP#41 · 655,961 sh | 655,961 | $21.2M | 0.01% | -0.1% |
| 42 | FEDERATED HERMES#42 · 635,142 sh | 635,142 | $20.6M | 0.03% | -39.8% |
| 43 | Penserra Capital Management#43 · 594,878 sh | 594,878 | $19.3M | 0.15% | -2.6% |
| 44 | Impax Asset Management Group plc#44 · 593,678 sh | 593,678 | $19.2M | 0.13% | -38.5% |
| 45 | First Eagle Investment Management#45 · 582,916 sh | 582,916 | $18.9M | 0.03% | +66.8% |
| 46 | LYELL WEALTH MANAGEMENT#46 · 582,345 sh | 582,345 | $18.9M | 1.16% | 0.0% |
| 47 | Defiance ETFs#47 · 594,878 sh | 594,878 | $18.7M | 0.25% | -2.6% |
| 48 | RAYMOND JAMES FINANCIAL#48 · 537,573 sh | 537,573 | $17.4M | <0.01% | -0.5% |
| 49 | CITADEL ADVISORS#49 · 534,750 sh | 534,750 | $17.3M | <0.01% | +6.3% |
| 50 | SEB Asset Management AB#50 · 476,442 sh | 476,442 | $15.4M | 0.06% | -41.1% |
| 51 | PUBLIC SECTOR PENSION INVESTMENT BOARD#51 · 449,257 sh | 449,257 | $14.5M | 0.04% | -38.2% |
| 52 | AQR CAPITAL MANAGEMENT#52 · 426,041 sh | 426,041 | $13.8M | <0.01% | +50.9% |
| 53 | Mirador Capital Partners#53 · 414,824 sh | 414,824 | $13.4M | — | -0.5% |
| 54 | JPMORGAN CHASE#54 · 402,715 sh | 402,715 | $13.1M | <0.01% | +41.4% |
| 55 | PEREGRINE CAPITAL MANAGEMENT#55 · 376,230 sh | 376,230 | $12.2M | 0.40% | New |
| 56 | MARSHALL WACE, LLP#56 · 365,422 sh | 365,422 | $11.8M | <0.01% | +29.6% |
| 57 | PRUDENTIAL FINANCIAL#57 · 364,743 sh | 364,743 | $11.8M | 0.01% | +166.6% |
| 58 | DEUTSCHE BANK AG\#58 · 347,234 sh | 347,234 | $11.2M | <0.01% | -47.3% |
| 59 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#59 · 344,535 sh | 344,535 | $11.2M | <0.01% | -1.9% |
| 60 | Hillsdale Investment Management#60 · 338,840 sh | 338,840 | $11.0M | 0.25% | +9.8% |
| 61 | SEI INVESTMENTS#61 · 330,554 sh | 330,554 | $10.7M | <0.01% | -8.4% |
| 62 | Focus Partners Wealth#62 · 324,620 sh | 324,620 | $10.5M | 0.01% | -17.2% |
| 63 | RHUMBLINE ADVISERS#63 · 312,763 sh | 312,763 | $10.1M | <0.01% | -13.8% |
| 64 | Clearbridge Investments#64 · 306,189 sh | 306,189 | $9.9M | <0.01% | -40.0% |
| 65 | Legal & General Group Plc#65 · 300,692 sh | 300,692 | $9.7M | <0.01% | -1.4% |
| 66 | STATE OF WISCONSIN INVESTMENT BOARD#66 · 293,113 sh | 293,113 | $9.5M | 0.02% | -29.4% |
| 67 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#67 · 289,000 sh | 289,000 | $9.4M | 0.01% | New |
| 68 | LAZARD ASSET MANAGEMENT#68 · 283,976 sh | 283,976 | $9.2M | 0.01% | +1681.4% |
| 69 | HRT FINANCIAL#69 · 282,668 sh | 282,668 | $9.1M | 0.02% | -5.8% |
| 70 | VOYA INVESTMENT MANAGEMENT#70 · 268,268 sh | 268,268 | $8.7M | <0.01% | -21.2% |
| 71 | Swiss National Bank#71 · 262,700 sh | 262,700 | $8.5M | <0.01% | -0.3% |
| 72 | Trexquant Investment#72 · 255,114 sh | 255,114 | $8.3M | 0.05% | -63.3% |
| 73 | MACKENZIE FINANCIAL#73 · 241,551 sh | 241,551 | $7.8M | <0.01% | -27.1% |
| 74 | BARCLAYS PLC#74 · 241,153 sh | 241,153 | $7.8M | <0.01% | +4.2% |
| 75 | TUDOR INVESTMENT ET AL#75 · 236,679 sh | 236,679 | $7.7M | 0.01% | -25.3% |
| 76 | OP Asset Management Ltd#76 · 227,830 sh | 227,830 | $7.4M | 0.08% | -58.0% |
| 77 | Circumference Group#77 · 225,100 sh | 225,100 | $7.3M | 15.82% | -36.6% |
| 78 | FRANKLIN RESOURCES#78 · 224,952 sh | 224,952 | $7.3M | <0.01% | -22.9% |
| 79 | BROOKTREE CAPITAL MANAGEMENT#79 · 223,636 sh | 223,636 | $7.2M | 4.72% | +0.4% |
| 80 | Capital Advantage#80 · 219,308 sh | 219,308 | $7.1M | — | -8.2% |
| 81 | ROYAL BANK OF CANADA#81 · 211,331 sh | 211,331 | $6.8M | <0.01% | 0.0% |
| 82 | Edgestream Partners, L.P.#82 · 206,889 sh | 206,889 | $6.7M | 0.20% | New |
| 83 | Lisanti Capital Growth#83 · 183,095 sh | 183,095 | $5.9M | 1.30% | New |
| 84 | INTECH INVESTMENT MANAGEMENT#84 · 179,787 sh | 179,787 | $5.8M | 0.05% | -0.7% |
| 85 | ICON ADVISERS#85 · 170,000 sh | 170,000 | $5.5M | 1.04% | +112.5% |
| 86 | Engineers Gate Manager#86 · 164,025 sh | 164,025 | $5.3M | 0.07% | -67.8% |
| 87 | IRONWOOD INVESTMENT MANAGEMENT#87 · 161,853 sh | 161,853 | $5.2M | 1.81% | +0.3% |
| 88 | CAPITAL FUND MANAGEMENT S.A.#88 · 148,693 sh | 148,693 | $4.8M | 0.02% | +119.8% |
| 89 | WELLS FARGO & COMPANY#89 · 139,410 sh | 139,410 | $4.5M | <0.01% | +134.8% |
| 90 | Ballast Asset Management#90 · 138,328 sh | 138,328 | $4.5M | 1.79% | -1.0% |
| 91 | SUSQUEHANNA FUNDAMENTAL INVESTMENTS#91 · 136,131 sh | 136,131 | $4.4M | 0.08% | +379.1% |
| 92 | VANGUARD ASSET MANAGEMENT, Ltd#92 · 135,914 sh | 135,914 | $4.4M | <0.01% | +24.5% |
| 93 | D.A. DAVIDSON#93 · 128,000 sh | 128,000 | $4.1M | 0.02% | -5.2% |
| 94 | Numerai GP#94 · 127,025 sh | 127,025 | $4.1M | 0.34% | New |
| 95 | Amundi#95 · 125,186 sh | 125,186 | $4.1M | <0.01% | -66.8% |
| 96 | NOMURA ASSET MANAGEMENT INTERNATIONAL#96 · 122,433 sh | 122,433 | $4.0M | <0.01% | New |
| 97 | Torrey Growth & Income Advisors#97 · 116,015 sh | 116,015 | $3.8M | 1.28% | New |
| 98 | CITIGROUP#98 · 110,801 sh | 110,801 | $3.6M | <0.01% | -3.5% |
| 99 | GREAT WEST LIFE ASSURANCE#99 · 104,971 sh | 104,971 | $3.4M | <0.01% | -3.9% |
| 100 | CenterBook Partners#100 · 101,937 sh | 101,937 | $3.3M | 0.16% | -14.5% |
Funds that sold out of EXTR in Q2 2026 (32)
Held EXTR at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Alyeska Investment Group, L.P.2,786,671 sh | 2,786,671 | $42.0M |
| Polar Asset Management Partners461,629 sh | 461,629 | $7.0M |
| ALGERT GLOBAL327,803 sh | 327,803 | $4.9M |
| ESSEX INVESTMENT MANAGEMENT158,032 sh | 158,032 | $2.4M |
| ExodusPoint Capital Management96,622 sh | 96,622 | $1.5M |
| FIRST ADVISORS75,444 sh | 75,444 | $1.1M |
| Villanova Investment Management48,219 sh | 48,219 | $727.1K |
| SkyView Investment Advisors48,198 sh | 48,198 | $727.0K |
| Elo Mutual Pension Insurance47,490 sh | 47,490 | $716.1K |
| NEEDHAM INVESTMENT MANAGEMENT45,000 sh | 45,000 | $678.6K |
| Schonfeld Strategic Advisors41,482 sh | 41,482 | $625.5K |
| Vinva Investment Management Ltd26,904 sh | 26,904 | $587.5K |
| Centurion Wealth Management32,539 sh | 32,539 | $490.7K |
| Entropy Technologies31,749 sh | 31,749 | $478.8K |
| Diametric Capital31,109 sh | 31,109 | $469.1K |
| FOX RUN MANAGEMENT, L.L.C.27,105 sh | 27,105 | $405.8K |
| CAPSTONE INVESTMENT ADVISORS26,693 sh | 26,693 | $402.5K |
| OneDigital Investment Advisors24,696 sh | 24,696 | $372.4K |
| Centiva Capital22,510 sh | 22,510 | $339.5K |
| Central Pacific Bank - Division21,389 sh | 21,389 | $322.5K |
| EntryPoint Capital17,942 sh | 17,942 | $270.6K |
| Squarepoint Ops15,950 sh | 15,950 | $240.5K |
| Gallacher Capital Management15,656 sh | 15,656 | $236.1K |
| DRW Securities12,647 sh | 12,647 | $190.7K |
| South Street Advisors12,470 sh | 12,470 | $188.0K |
| JUPITER ASSET MANAGEMENT LTD10,784 sh | 10,784 | $162.6K |
| QUADRANT CAPITAL GROUP8,866 sh | 8,866 | $115.8K |
| MAI Capital Management3,919 sh | 3,919 | $59.1K |
| Root Financial Partners235 sh | 235 | $3.5K |
| TWIN PEAKS WEALTH ADVISORS212 sh | 212 | $3.2K |
| Advisory Services Network115 sh | 115 | $1.7K |
| IFP Advisors5 sh | 5 | $75.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.