FRONTIER CAPITAL MANAGEMENT CO LLC

Position in BDC — Belden Inc.

CIK 351173 Boston, MA

Position in BDC

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$28,837,875

-$23,448,587 QoQ

Shares Held

240,496

-47.2% QoQ

Ownership

0.615%

of shares outstanding

% of Portfolio

0.27%

of 13F equity value

Holder Rank

#31

of 371 holders

Holding Since

Jun 2020

25 quarters on record

Voting authority Sole 63% Shared 0% None 37%

Technology · as of Jun 30, 2026

FRONTIER CAPITAL MANAGEMENT CO LLC holds $204,809,037 across 4 Communication Equipment names. BDC ranks #2 (14.1% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AAOI	Applied Optoelectronics, Inc.	975,318	$144,503,114
2	BDC	Belden Inc. This page	240,496	$28,837,875
3	LITE	Lumentum Holdings Inc.	21,893	$18,785,507
4	MSI	Motorola Solutions, Inc.	30,539	$12,682,541

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$28,837,875	240,496	-47.2%	Shares	Sole	2026-08-14
2026-03-31	$52,286,462	455,338	-1.5%	Shares	Sole	2026-05-15
2025-12-31	$53,850,762	462,040	+7.0%	Shares	Sole	2026-02-17
2025-09-30	$51,923,445	431,724	+0.8%	Shares	Sole	2025-11-14
2025-06-30	$49,575,717	428,115	-11.5%	Shares	Sole	2025-08-14
2025-03-31	$48,488,619	483,677	+5.8%	Shares	Sole	2025-05-15
2024-12-31	$51,498,016	457,313	+3.9%	Shares	Sole	2025-02-14
2024-09-30	$51,559,806	440,193	-2.3%	Shares	Sole	2024-11-14
2024-06-30	$42,276,691	450,711	-8.0%	Shares	Sole	2024-08-14
2024-03-31	$45,383,252	490,047	-3.4%	Shares	Sole	2024-05-15
2023-12-31	$39,177,646	507,154	-25.9%	Shares	Sole	2024-02-14
2023-09-30	$66,060,089	684,206	-20.0%	Shares	Sole	2023-11-14
2023-06-30	$81,841,392	855,634	-4.2%	Shares	Sole	2023-08-14
2023-03-31	$77,509,124	893,271	+15.6%	Shares	Sole	2023-05-15
2022-12-31	$55,565,110	772,811	+9.6%	Shares	Sole	2023-02-14
2022-09-30	$42,325,323	705,187	+9.3%	Shares	Sole	2022-11-14
2022-06-30	$34,367,353	645,154	+9.1%	Shares	Sole	2022-07-20
2022-03-31	$32,757,355	591,288	-3.3%	Shares	Sole	2022-04-14
2021-12-31	$40,171,875	611,165	-22.5%	Shares	Sole	2022-01-19
2021-09-30	$45,963,702	788,941	-2.8%	Shares	Sole	2021-10-19
2021-06-30	$41,058,187	811,908	+9.8%	Shares	Sole	2021-08-09
2021-03-31	$32,799,679	739,231	-21.8%	Shares	Sole	2021-05-13
2020-12-31	$39,595,960	945,011	+5.4%	Shares	Sole	2021-01-19
2020-09-30	$27,907,171	896,760	+46.2%	Shares	Sole	2020-11-16
2020-06-30	$19,960,799	613,235	—	Shares	Sole	2020-07-17
No filing history on record for this holder in this stock.