Who owns Extreme Networks (EXTR)?
125 holders named in SEC filings declare between 75.4% and 99.0% of Extreme Networks' shares outstanding, as of Oct 1, 2026. The largest are BlackRock (16.0%), Vanguard (15.0%) and State Street (4.7%); the five largest hold 43.0% together. Another 221 institutions hold small positions worth 2.7%. From Mar 31, 2026 to Jun 30, 2026, institutions that filed both quarters bought 15.9% and sold 12.6% of the shares, a net purchase of 3.3%; 70 opened a position, 99 added, 120 reduced and 28 sold out. Biggest buyers: T. Rowe Price (+5.2M shares) and American Century Companies, Inc. (+2.3M shares). Biggest sellers: Alyeska Investment Group, L.P. (-2.8M) and Trigran Investments, Inc. (-1.3M). Directors and officers, from their latest Form 4: Edward Meyercord (1.3%). Over time, 331 managers declared Extreme Networks in their 13F for Q2 2026, against 178 for Q4 2019: together at most 98.2% of the shares outstanding, against 81.4%.
| Holder | Filing | Share of capital | As of | Holding since (13F) |
|---|---|---|---|---|
| BlackRock | 13F | 16.0% | Jun 30, 2026 | Q4 2019 or earlier |
| Vanguard | 13F | 15.0% | Jun 30, 2026 | Q4 2019 or earlier |
| State Street | 13F | 4.7% | Jun 30, 2026 | Q4 2019 or earlier |
| T. Rowe Price | 13F | 4.1% | Jun 30, 2026 | Q4 2019 or earlier |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 13F | 3.3% | Jun 30, 2026 | Q4 2019 or earlier |
| Fidelity (FMR) | 13F | 2.7% | Jun 30, 2026 | Q4 2019 or earlier |
| Geode Capital | 13F | 2.6% | Jun 30, 2026 | Q4 2019 or earlier |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 13F | 2.6% | Jun 30, 2026 | Q4 2024 |
| Goldman Sachs | 13F | 2.3% | Jun 30, 2026 | Q4 2019 or earlier |
| LOOMIS SAYLES & CO L P | 13F | 1.9% | Jun 30, 2026 | Q3 2025 |
| American Century Companies, Inc. | 13F | 1.9% | Jun 30, 2026 | Q1 2020 |
| Renaissance Technologies | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Morgan Stanley | 13F | 1.4% | Jun 30, 2026 | Q4 2019 or earlier |
| Edward Meyercord | Form 4 | 1.3% | Oct 1, 2026 | — |
| Ameriprise Financial, Inc. | 13F | 1.3% | Jun 30, 2026 | Q4 2019 or earlier |
| SOUTHERNSUN ASSET MANAGEMENT, LLC | 13F | 1.3% | Jun 30, 2026 | Q1 2025 |
| Boston Partners | 13F | 1.3% | Jun 30, 2026 | Q2 2026 |
| Trigran Investments, Inc. | 13F | 1.2% | Jun 30, 2026 | Q1 2024 |
| Nuveen | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Northern Trust | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| ALLIANCEBERNSTEIN L.P. | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Shannon River Fund Management LLC | 13F | 1.1% | Jun 30, 2026 | Q4 2025 |
| Bank of America | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| Charles Schwab | 13F | 1.1% | Jun 30, 2026 | Q4 2019 or earlier |
| UBS | 13F | 0.81% | Jun 30, 2026 | Q4 2019 or earlier |
Extreme Networks institutional ownership over time
| Quarter | 13F managers | Share of the company (upper bound) | Value declared | Held by stock pickers |
|---|---|---|---|---|
| Q4 2019 | 178 | 81.4% | $734.7M | 59.7% |
| Q4 2020 | 168 | 78.9% | $668.9M | 56.9% |
| Q4 2021 | 224 | 84.0% | $1.7B | 58.2% |
| Q4 2022 | 256 | 86.6% | $2.1B | 58.5% |
| Q4 2023 | 293 | 90.4% | $2.1B | 52.0% |
| Q4 2024 | 268 | 90.8% | $2.0B | 52.9% |
| Q4 2025 | 306 | 91.6% | $2.0B | 50.8% |
| Q2 2026 | 331 | 98.2% | $4.2B | 49.2% |
From SEC Form 13F, every quarter since the end of 2019, read like the current quarter: entities of a house summed, a value contradicting its share count set aside. The share of the company is an upper bound — two managers can declare the same shares — over the shares outstanding at that date.