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EXTR · Extreme Networks Inc

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Market Cap
$2.95B
Shares
130.49M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 342
Total Value: $4,165,865,878
Total Shares: 128,695,277
Showing 1–100 of 350 holdings by value · page 1 of 4

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 342 13F filers · Δ vs Mar 31, 2026
Top Holder
16.2%
Sep 2023 → Jun 2026 · range 14.6% – 16.2%
+0.3 pts
Top 5
39.5%
Sep 2023 → Jun 2026 · range 36.6% – 43.6%
−0.8 pts
Top 10
53.1%
Sep 2023 → Jun 2026 · range 48.5% – 56.0%
+0.3 pts
HHI
496
Sep 2023 → Jun 2026 · range 443 – 596
Broadly held−7

Quarterly Activity

vs Mar 31, 2026
New
78
Increased
105
Decreased
124
Sold Out
38
Unchanged
35
Holder count: +40
Institutional value: +117.2%
Shares held: +1.2%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 350
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1078271 CUSIP 30226D106 13F (30d) 278 filings 273 filers Visit website Investor relations