Extreme Networks, Inc.
US ˙ NasdaqGS ˙ US30226D1063

SecurityEXTR / Extreme Networks, Inc.
InstitutionAlgert Global Llc
Latest Disclosed Ownership327,803 shares
Latest Disclosed Value $ 4,943
Algert Global Llc reports 46.40% decrease in ownership of EXTR / Extreme Networks, Inc.

On May 14, 2026 - Algert Global Llc filed a 13F-HR form disclosing ownership of 327,803 shares of Extreme Networks, Inc. (US:EXTR) valued at $4,943,269 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 611,524 shares of Extreme Networks, Inc.. This represents a change in shares of -46.40% during the quarter. The current value of the position is $9,706,247 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.

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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)
2026-05-14 2026-03-31 13F EXTREME NETWORKS COM 30226D106 327,803 -283,721 -46.40 5 -60.00 0.0744
2026-02-17 2025-12-31 13F EXTREME NETWORKS COM 30226D106 611,524 -321,543 -34.46 10 -47.37 0.1588
2025-11-14 2025-09-30 13F EXTREME NETWORKS COM 30226D106 933,067 309,169 49.55 19 72.73 0.3225
2025-08-14 2025-06-30 13F XTREME NETWORKS COM 30226D106 623,898 342,440 121.67 11 266.67 0.2346
2025-05-13 2025-03-31 13F EXTREME NETWORKS COM 30226D106 281,458 98,015 53.43 4 0.00 0.0921
2025-02-14 2024-12-31 13F EXTREME NETWORKS COM 30226D106 183,443 95,857 109.44 3 200.00 0.0723
2024-11-12 2024-09-30 13F EXTREME NETWORKS COM 30226D106 87,586 -13,310 -13.19 1 0.00 0.0354
2024-08-15 2024-06-30 13F EXTREME NETWORKS COM 30226D106 100,896 -44,161 -30.44 1 0.00 0.0451
2024-05-15 2024-03-31 13F EXTREME NETWORKS COM 30226D106 145,057 94,757 188.38 2 0.0655
2024-02-14 2023-12-31 13F EXTREME NETWORKS COM 30226D106 50,300 -168,293 -76.99 1 -100.00 0.0357
2023-11-13 2023-09-30 13F EXTREME NETWORKS COM 30226D106 218,593 -129,370 -37.18 5 -44.44 0.2488
2023-08-14 2023-06-30 13F EXTREME NETWORKS COM 30226D106 347,963 -7,020 -1.98 9 50.00 0.3945
2023-05-12 2023-03-31 13F EXTREME NETWORKS COM 30226D106 354,983 196,452 123.92 7 200.00 0.3203
2023-02-14 2022-12-31 13F EXTREME NETWORKS COM 30226D106 158,531 26,780 20.33 3 -99.88 0.1608
2022-11-15 2022-09-30 13F EXTREME NETWORKS COM 30226D106 131,751 61,011 86.25 1,722 172.90 0.1041
2022-08-15 2022-06-30 13F EXTREME NETWORKS COM 30226D106 70,740 70,740 631 0.0474
2022-05-16 2022-03-31 13F EXTREME NETWORKS COM 30226D106 0 -70,412 -100.00 0 -100.00
2022-02-14 2021-12-31 13F EXTREME NETWORKS COM 30226D106 70,412 -75,550 -51.76 1,105 -23.16 0.1380
2021-11-15 2021-09-30 13F EXTREME NETWORKS COM 30226D106 145,962 127,692 698.92 1,438 604.90 0.1914
2021-08-13 2021-06-30 13F EXTREME NETWORKS COM 30226D106 18,270 -18,100 -49.77 204 -35.85 0.0687
2021-05-14 2021-03-31 13F EXTREME NETWORKS COM 30226D106 36,370 -15,010 -29.21 318 -10.17 0.1017
2021-02-12 2020-12-31 13F EXTREME NETWORKS COM 30226D106 51,380 25,420 97.92 354 240.38 0.1010
2020-11-16 2020-09-30 13F EXTREME NETWORKS COM 30226D106 25,960 25,960 104 0.0330
2019-08-14 2019-06-30 13F EXTREME NETWORKS COM 30226D106 0 -121,427 -100.00 0 -100.00
2019-05-01 2019-03-31 13F EXTREME NETWORKS COM 30226D106 121,427 -149,610 -55.20 909 -45.01 0.5194
2019-02-01 2018-12-31 13F EXTREME NETWORKS COM 30226D106 271,037 -28,963 -9.65 1,653 0.55 0.4609
2018-11-14 2018-09-30 13F EXTREME NETWORKS COM 30226D106 300,000 168,238 127.68 1,644 56.72 0.3545
2018-08-01 2018-06-30 13F EXTREME NETWORKS COM 30226D106 131,762 131,762 1,049 0.2178
2017-07-31 2017-06-30 13F EXTREME NETWORKS COM 30226D106 0 -251,265 -100.00 0 -100.00
2017-05-02 2017-03-31 13F EXTREME NETWORKS COM 30226D106 251,265 -131,019 -34.27 1,887 -1.87 0.5099
2017-01-25 2016-12-31 13F EXTREME NETWORKS COM 30226D106 382,284 -426,126 -52.71 1,923 -47.02 0.5500
2016-10-11 2016-09-30 13F EXTREME NETWORKS COM 30226D106 808,410 154,627 23.65 3,630 63.81 1.0497
2016-08-12 2016-06-30 13F EXTREME NETWORKS COM 30226D106 653,783 -62,556 -8.73 2,216 -0.54 0.8985
2016-05-10 2016-03-31 13F EXTREME NETWORKS COM 30226D106 716,339 179,724 33.49 2,228 1.78 0.8353
2016-02-12 2015-12-31 13F EXTREME NETWORKS COM 30226D106 536,615 -121,891 -18.51 2,189 -1.08 1.0223
2015-10-28 2015-09-30 13F EXTREME NETWORKS COM 30226D106 658,506 422,898 179.49 2,213 249.05 1.2269
2015-08-24 2015-06-30 13F EXTREME NETWORKS COM 30226D106 235,608 0 0.00 634 -14.90 0.3496
2015-05-12 2015-03-31 13F EXTREME NETWORKS COM 30226D106 235,608 158,740 206.51 745 174.91 0.4134
2015-02-11 2014-12-31 13F EXTREME NETWORKS COM 30226D106 76,868 76,868 271 0.1605
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.