Boston Partners

Position in ADTN — ADTRAN Holdings, Inc.

CIK 1386060 BOSTON, MA

Position in ADTN

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$14,860,929

New position

Shares Held

1,181,314

first reported quarter

Ownership

1.46%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2026

1 quarter on record

Voting authority Sole 90.8283487709449.ToString("F0")% Shared 0.ToString("F0")% None 9.171651229055103.ToString("F0")%

Technology · as of Mar 31, 2026

Boston Partners holds $637,547,776 across 5 Communication Equipment names. ADTN ranks #4 (2.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ZBRA	Zebra Technologies Corp	1,470,774	$307,509,425
2	CSCO	Cisco Systems, Inc.	3,617,135	$280,653,502
3	BDC	Belden Inc.	284,650	$32,686,358
4	ADTN	ADTRAN Holdings, Inc. This page	1,181,314	$14,860,929
5	ERIC	Ericsson Lm Telephone Co	163,049	$1,837,562

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$14,860,929	1,181,314	—	Shares	Defined	2026-05-11
No filing history on record for this holder in this stock.