Extreme Networks, Inc.
US ˙ NasdaqGS ˙ US30226D1063

SecurityEXTR / Extreme Networks, Inc.
InstitutionFox Run Management, L.l.c.
Latest Disclosed Ownership27,105 shares
Latest Disclosed Value $ 405,762
Fox Run Management, L.l.c. reports 71.73% decrease in ownership of EXTR / Extreme Networks, Inc.

On May 12, 2026 - Fox Run Management, L.l.c. filed a 13F-HR form disclosing ownership of 27,105 shares of Extreme Networks, Inc. (US:EXTR) valued at $408,743 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 95,884 shares of Extreme Networks, Inc.. This represents a change in shares of -71.73% during the quarter. The current value of the position is $780,353 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-12 2026-03-31 13F EXTREME NETWORKS COM 30226D106 27,105 -68,779 -71.73 406 -74.62 0.0710
2026-02-11 2025-12-31 13F EXTREME NETWORKS COM 30226D106 95,884 -6,016 -5.90 1,596 -24.14 0.2464
2025-11-12 2025-09-30 13F EXTREME NETWORKS COM 30226D106 101,900 17,624 20.91 2,104 39.15 0.3281
2025-08-06 2025-06-30 13F EXTREME NETWORKS COM 30226D106 84,276 -9,596 -10.22 1,513 21.84 0.2520
2025-05-13 2025-03-31 13F EXTREME NETWORKS COM 30226D106 93,872 -2,639 -2.73 1,242 -23.16 0.1924
2025-02-11 2024-12-31 13F EXTREME NETWORKS COM 30226D106 96,511 96,511 1,616 0.2934
2024-11-12 2024-09-30 13F EXTREME NETWORKS COM 30226D106 0 -48,630 -100.00 0 -100.00
2024-08-13 2024-06-30 13F EXTREME NETWORKS COM 30226D106 48,630 48,630 654 0.1231
2024-05-13 2024-03-31 13F EXTREME NETWORKS COM 30226D106 0 -20,418 -100.00 0 -100.00
2024-02-13 2023-12-31 13F EXTREME NETWORKS COM 30226D106 20,418 -5,316 -20.66 360 -42.22 0.0919
2023-11-07 2023-09-30 13F EXTREME NETWORKS COM 30226D106 25,734 25,734 623 0.1844
2023-08-11 2023-06-30 13F EXTREME NETWORKS COM 30226D106 0 -40,197 -100.00 0 -100.00
2023-05-12 2023-03-31 13F EXTREME NETWORKS COM 30226D106 40,197 -19,353 -32.50 769 -29.54 0.2503
2023-02-07 2022-12-31 13F EXTREME NETWORKS COM 30226D106 59,550 40,565 213.67 1,090 339.52 0.4378
2022-11-07 2022-09-30 13F EXTREME NETWORKS COM 30226D106 18,985 4,706 32.96 248 95.28 0.0965
2022-08-12 2022-06-30 13F EXTREME NETWORKS COM 30226D106 14,279 -23,041 -61.74 127 -72.15 0.0634
2022-05-10 2022-03-31 13F EXTREME NETWORKS COM 30226D106 37,320 24,938 201.41 456 135.05 0.2539
2022-02-09 2021-12-31 13F EXTREME NETWORKS COM 30226D106 12,382 -4,601 -27.09 194 76.36 0.1143
2019-10-11 2019-09-30 13F EXTREME NETWORKS COM 30226D106 16,983 0 0.00 110 0.00 0.0731
2019-07-17 2019-06-30 13F EXTREME NETWORKS COM 30226D106 16,983 16,983 110 0.0731
2017-10-23 2017-09-30 13F EXTREME NETWORKS COM 30226D106 0 -19,900 -100.00 0 -100.00
2017-07-10 2017-06-30 13F EXTREME NETWORKS COM 30226D106 19,900 19,900 183 0.0633
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.