Who owns EXTREME NETWORKS INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of EXTR from SEC Form 13F filings across 343 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 343 institutions disclosed 128.5M shares of EXTREME NETWORKS INC worth $4.13B — about 96.8% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
343
13F holders
$4.13B
value, 2026 filers
96.8%
of shares outstanding (128.5M sh)
81
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of EXTR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 20.8M | $674.7M | 0.0% | 15.7% | +3.2% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 12.8M | $415.7M | 0.0% | 9.7% | -5.4% |
| 3 | STATE STREET CORP | 6.1M | $198.6M | 0.0% | 4.6% | -4.8% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 5.7M | $183.9M | 0.0% | 4.3% | -1.7% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | 5.3M | $172.4M | 0.0% | 4% | +3350.1% |
| 6 | PARADIGM CAPITAL MANAGEMENT INC/NY | 4.2M | $137.3M | 3.7% | 3.2% | -19.0% |
| 7 | FMR LLC | 3.5M | $113.6M | 0.0% | 2.6% | +5.6% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 3.4M | $110.3M | 0.0% | 2.6% | +2.4% |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 3.4M | $108.7M | 0.0% | 2.5% | +3.4% |
| 10 | GOLDMAN SACHS GROUP INC | 3.0M | $97.3M | 0.0% | 2.3% | -3.9% |
| 11 | LOOMIS SAYLES & CO L P | 2.5M | $82.1M | 0.1% | 1.9% | -6.6% |
| 12 | AMERICAN CENTURY COMPANIES INC | 2.5M | $80.3M | 0.0% | 1.9% | +1518.1% |
| 13 | RENAISSANCE TECHNOLOGIES LLC | 1.9M | $60.3M | 0.1% | 1.4% | -10.3% |
| 14 | MORGAN STANLEY | 1.8M | $58.5M | 0.0% | 1.4% | +0.8% |
| 15 | AMERIPRISE FINANCIAL INC | 1.7M | $55.0M | 0.0% | 1.3% | +107.9% |
| 16 | SOUTHERNSUN ASSET MANAGEMENT, LLC | 1.7M | $54.6M | 7.3% | 1.3% | -26.7% |
| 17 | Boston PartnersNEW | 1.7M | $54.3M | 0.0% | 1.3% | new |
| 18 | Trigran Investments, Inc. | 1.5M | $48.8M | 8.9% | 1.1% | -47.1% |
| 19 | Nuveen, LLC | 1.5M | $48.0M | 0.0% | 1.1% | -5.9% |
| 20 | NORTHERN TRUST CORP | 1.5M | $47.3M | 0.0% | 1.1% | +4.2% |
| 21 | ALLIANCEBERNSTEIN L.P. | 1.4M | $21.6M | 0.0% | 1.1% | -10.7% |
| 22 | Shannon River Fund Management LLC | 1.4M | $46.1M | 4.1% | 1.1% | +8.5% |
| 23 | BANK OF AMERICA CORP /DE/ | 1.4M | $45.5M | 0.0% | 1.1% | +85.8% |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.4M | $44.7M | 0.0% | 1% | -7.7% |
| 25 | PANAGORA ASSET MANAGEMENT INC | 1.0M | $33.4M | 0.1% | 0.8% | +122.7% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.