Penbrook Management LLC

Position in EXTR — Extreme Networks Inc

CIK 1381055 NEW YORK, NY

Position in EXTR

as of Jun 30, 2026 · filed Jul 23, 2026 Compact

Position Value

$2,719,889

+$1,460,332 QoQ

Shares Held

84,025

+0.6% QoQ

Ownership

0.064%

of shares outstanding

% of Portfolio

1.84%

of 13F equity value

Holder Rank

#108

of 339 holders

Holding Since

Mar 2026

2 quarters on record

Voting authority Sole 0% Shared 0% None 100%

Technology · as of Jun 30, 2026

Penbrook Management LLC holds $4,957,721 across 3 Communication Equipment names. EXTR ranks #1 (54.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	EXTR	Extreme Networks Inc This page	84,025	$2,719,889
2	CSCO	Cisco Systems, Inc.	18,350	$2,155,391
3	ONDS	Ondas Inc.	10,005	$82,441

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,719,889	84,025	+0.6%	Shares	Sole	2026-07-23
2026-03-31	$1,259,557	83,525	—	Shares	Sole	2026-04-21
No filing history on record for this holder in this stock.