Comparable stake leader
VANGUARD PORTFOLIO MANAGEMENT LLC
SEC ownership of EXTREME NETWORKS INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001078271.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
10 Aug 2026
- Public ticker
- EXTR on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD PORTFOLIO MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD PORTFOLIO MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
10 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001078271
- Issuer location
- Morrisville, NC
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of EXTREME NETWORKS INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD PORTFOLIO MANAGE...
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
10 Aug 2026
13F
13D/G
3/4/5
Lead comparable stake: 10%
13D/G row: VANGUARD PORTFOLIO MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD PORTFOLIO MANAGEMENT LLC leads the comparable SEC ownership view at 10%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD PORTFOLIO MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD PORTFOLIO MANAGEMENT LLC
10%
VANGUARD CAPITAL MANAGEMENT LLC
5%
John C. Shoemaker
0.43%
Edward H. Kennedy
0.43%
Charles Carinalli
0.28%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
10%
from 13D/G
|
$415,674,726
12,841,357 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
5%
from 13D/G
|
$183,891,316
5,680,918 shares
|
— | 30 Jun 2026 |
| John C. Shoemaker |
3/4/5
Director
|
0.43%
|
$12,233,880
582,345 shares
mixed-class rows
|
— | 12 Nov 2025 |
| Edward H. Kennedy |
3/4/5
Director
|
0.43%
|
$13,375,980
576,045 shares
mixed-class rows
|
-$1,142,925 | 04 May 2026 |
| Charles Carinalli |
3/4/5
Director
|
0.28%
|
$8,058,491
380,147 shares
mixed-class rows
|
— | 12 Nov 2025 |
| Kathleen M. Holmgren |
3/4/5
Director
|
0.16%
|
$5,643,500
219,308 shares
mixed-class rows
|
-$483,783 | 15 May 2026 |
| Raj Khanna |
3/4/5
Director
|
0.15%
|
$4,928,975
195,062 shares
mixed-class rows
|
-$817,004 | 10 Aug 2026 |
| Ingrid Burton |
3/4/5
Director
|
0.07%
|
$2,139,582
93,517 shares
mixed-class rows
|
— | 12 Nov 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$24,877,981.
Buys
$0
Insiders: 0
Sells
$24,877,981
Insiders: 6
Net
-$24,877,981
Shares: -1,048,917
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 1,048,917
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 186,825 | $0 | $5,019,382 | -$5,019,382 |
| 3-6 | 0 | 662,092 | $0 | $16,716,125 | -$16,716,125 |
| 6-9 | 0 | 150,000 | $0 | $2,269,545 | -$2,269,545 |
| 9-12 | 0 | 50,000 | $0 | $872,930 | -$872,930 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-13 of 13 reporting-owner rows connected to EXTREME NETWORKS INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
13
Largest Forms 3/4/5 holder
Edward Meyercord
Net 12M change
-$24,877,982
Latest report
01 Sep 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Edward Meyercord | PRESIDENT AND CEO, Director | $39,695,248 | -$18,399,982 | -32% | Mixed | 01 Sep 2026 |
| Edward H. Kennedy | Director | $13,375,980 | -$1,142,925 | -7.9% | Mixed | 04 May 2026 |
| John C. Shoemaker | Director | $12,233,880 | Mixed | 12 Nov 2025 | ||
| Charles Carinalli | Director | $8,058,491 | Mixed | 12 Nov 2025 | ||
| Kathleen M. Holmgren | Director | $5,643,500 | -$483,783 | -7.9% | Mixed | 15 May 2026 |
| Kevin R. Rhodes | EVP Chief Financial Officer | $5,281,823 | -$1,862,001 | -26% | Mixed | 21 Aug 2026 |
| Katayoun Motiey | Chief Legal Admin Sust Officer | $5,265,187 | -$2,172,287 | -29% | Mixed | 15 Aug 2026 |
| Raj Khanna | Director | $4,928,975 | -$817,004 | -14% | Mixed | 10 Aug 2026 |
| Remi Thomas | EVP Chief Financial Officer | $2,472,350 | Mixed | 15 Feb 2023 | ||
| Ingrid Burton | Director | $2,139,582 | Mixed | 12 Nov 2025 | ||
| Joseph A. Vitalone | Chief Revenue Officer | $2,068,698 | Mixed | 15 Nov 2023 | ||
| Cristina Tate | Interim CFO | $490,988 | Mixed | 15 May 2023 | ||
| Ronald J. Pasek | Director | Mixed | 05 Jan 2026 |
Recent insider transactions for EXTREME NETWORKS INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Edward Meyercord | EXTR | Common Stock | Sale | -2.76% | $1,094,920 | $21.90 | -50,000 | 1,760,097 | 01 Sep 2026 | Direct |
| Kevin R. Rhodes | EXTR | Common Stock | Sale | -9.98% | $486,698 | $22.30 | -21,825 | 196,803 | 21 Aug 2026 | Direct |
| Kevin R. Rhodes | EXTR | Common Stock | Tax liability | -14.4% | -33,341 | 198,640 | 16 Aug 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Award | 47.2% | 75,174 | 234,559 | 16 Aug 2026 | Direct | ||
| Katayoun Motiey | EXTR | Common Stock | Tax liability | -12.2% | -20,341 | 145,851 | 16 Aug 2026 | by Trust | ||
| Katayoun Motiey | EXTR | Common Stock | Award | 33.2% | 41,024 | 164,444 | 16 Aug 2026 | by Trust | ||
| Edward Meyercord | EXTR | Common Stock | Tax liability | -4.58% | -84,037 | 1,750,637 | 16 Aug 2026 | Direct | ||
| Edward Meyercord | EXTR | Common Stock | Award | 13.1% | 213,561 | 1,848,676 | 16 Aug 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Tax liability | -11.4% | -20,270 | 156,826 | 15 Aug 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Options Exercise | 31.1% | 45,703 | 192,710 | 15 Aug 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Restricted Stock Units | Award | 110,000 | 110,000 | 15 Aug 2026 | Direct | |||
| Kevin R. Rhodes | EXTR | Restricted Stock Units | Options Exercise | -53.8% | -45,703 | 39,275 | 15 Aug 2026 | Direct | ||
| Katayoun Motiey | EXTR | Common Stock | Tax liability | -9.7% | -13,148 | 122,342 | 15 Aug 2026 | by Trust | ||
| Katayoun Motiey | EXTR | Common Stock | Options Exercise | 22.9% | 26,791 | 143,752 | 15 Aug 2026 | by Trust | ||
| Katayoun Motiey | EXTR | Restricted Stock Units | Award | 65,620 | 65,620 | 15 Aug 2026 | Direct | |||
| Katayoun Motiey | EXTR | Restricted Stock Units | Options Exercise | -100% | -26,791 | 0 | 15 Aug 2026 | Direct | ||
| Edward Meyercord | EXTR | Common Stock | Tax liability | -3.29% | -54,524 | 1,603,648 | 15 Aug 2026 | Direct | ||
| Edward Meyercord | EXTR | Common Stock | Options Exercise | 8.77% | 138,557 | 1,719,113 | 15 Aug 2026 | Direct | ||
| Edward Meyercord | EXTR | Restricted Stock Units | Award | 334,290 | 334,290 | 15 Aug 2026 | Direct | |||
| Edward Meyercord | EXTR | Restricted Stock Units | Options Exercise | -100% | -138,557 | 0 | 15 Aug 2026 | Direct | ||
| Raj Khanna | EXTR | Common Stock | Sale | -7.14% | $363,002 | $24.20 | -15,000 | 195,062 | 10 Aug 2026 | By Trust |
| Edward Meyercord | EXTR | Common Stock | Sale | -3.04% | $1,489,263 | $29.79 | -50,000 | 1,596,475 | 03 Aug 2026 | Direct |
| Edward Meyercord | EXTR | Common Stock | Options Exercise | 1.52% | 24,573 | 1,646,475 | 03 Aug 2026 | Direct | ||
| Edward Meyercord | EXTR | Non-Qualified Stock Option (right to buy) | Options Exercise | -100% | -24,573 | 0 | 03 Aug 2026 | Direct | ||
| Edward Meyercord | EXTR | Common Stock | Sale | -2.99% | $1,585,500 | $31.71 | -50,000 | 1,621,902 | 01 Jul 2026 | Direct |
| Edward Meyercord | EXTR | Common Stock | Options Exercise | 3.08% | 50,000 | 1,671,902 | 01 Jul 2026 | Direct | ||
| Edward Meyercord | EXTR | Non-Qualified Stock Option (right to buy) | Options Exercise | -67% | -50,000 | 24,573 | 01 Jul 2026 | Direct | ||
| Katayoun Motiey | EXTR | Common Stock | Sale | -19.9% | $930,762 | $31.03 | -30,000 | 120,834 | 12 Jun 2026 | by Trust |
| Kevin R. Rhodes | EXTR | Common Stock | Sale | -18.8% | $1,065,054 | $30.43 | -35,000 | 151,296 | 11 Jun 2026 | Direct |
| Katayoun Motiey | EXTR | Common Stock | Sale | -4.74% | $225,000 | $30.00 | -7,500 | 150,834 | 08 Jun 2026 | by Trust |
| Katayoun Motiey | EXTR | Common Stock | Sale | -4.52% | $217,500 | $29.00 | -7,500 | 158,334 | 02 Jun 2026 | by Trust |
| Edward Meyercord | EXTR | Common Stock | Sale | -5.81% | $2,919,500 | $29.20 | -100,000 | 1,621,902 | 02 Jun 2026 | Direct |
| Kevin R. Rhodes | EXTR | Common Stock | Tax liability | -10.9% | -22,722 | 186,296 | 01 Jun 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Award | 32.5% | 51,233 | 209,018 | 01 Jun 2026 | Direct | ||
| Katayoun Motiey | EXTR | Common Stock | Sale | -4.33% | $210,000 | $28.00 | -7,500 | 165,834 | 01 Jun 2026 | by Trust |
| Edward Meyercord | EXTR | Common Stock | Sale | -2.82% | $1,382,152 | $27.64 | -50,000 | 1,721,902 | 01 Jun 2026 | Direct |
| Edward Meyercord | EXTR | Common Stock | Options Exercise | 2.9% | 50,000 | 1,771,902 | 01 Jun 2026 | Direct | ||
| Edward Meyercord | EXTR | Non-Qualified Stock Option (right to buy) | Options Exercise | -40.1% | -50,000 | 74,573 | 01 Jun 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Tax liability | -3.23% | -5,260 | 157,785 | 30 May 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Options Exercise | 7.84% | 11,860 | 163,045 | 30 May 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Restricted Stock Units | Options Exercise | -100% | -11,860 | 0 | 30 May 2026 | Direct | ||
| Katayoun Motiey | EXTR | Common Stock | Sale | -7.96% | $397,500 | $26.50 | -15,000 | 173,334 | 26 May 2026 | by Trust |
| Edward Meyercord | EXTR | Common Stock | Sale | -5.49% | $2,609,590 | $26.10 | -100,000 | 1,721,902 | 26 May 2026 | Direct |
| Kathleen M. Holmgren | EXTR | Common Stock | Sale | -8.17% | $483,783 | $24.78 | -19,521 | 219,308 | 15 May 2026 | By Trust |
| Katayoun Motiey | EXTR | Common Stock | Tax liability | -1.94% | -3,663 | 185,225 | 15 May 2026 | by Trust | ||
| Katayoun Motiey | EXTR | Common Stock | Options Exercise | 4.5% | 8,215 | 190,835 | 15 May 2026 | by Trust | ||
| Katayoun Motiey | EXTR | Restricted Stock Units | Options Exercise | -75.9% | -8,215 | 2,605 | 15 May 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Tax liability | -2.8% | -4,355 | 151,185 | 15 May 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Common Stock | Options Exercise | 6.74% | 9,818 | 155,540 | 15 May 2026 | Direct | ||
| Kevin R. Rhodes | EXTR | Restricted Stock Units | Options Exercise | -16.7% | -9,818 | 49,094 | 15 May 2026 | Direct |
* marks a reported price that did not pass the local price check.