Does Boston Partners own BELFB stock?

Yes. As of its Q2 2026 13F, Boston Partners holds 78,597 shares of BELFB (Bel Fuse), worth $26.2M.

How many shares of BELFB does Boston Partners own?

As of its Q2 2026 13F, Boston Partners holds 78,597 shares of BELFB (Bel Fuse).

As of its Q2 2026 13F, Boston Partners' BELFB position is worth $26.2M.

In Q2 2026, Boston Partners increased its BELFB position by 13,154 shares (+20.1%).

Boston Partners already held BELFB in its Q4 2018 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

31 quarters

Position history for Boston Partners's holdings in Bel Fuse Inc.

Current Value

$26.2M

Current Shares

78,597

Total Value Change

+$21.8M

Total Shares Change

-157,607

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	78,597	+20.1%	$26.2M	0.0%	$332.96	34
2026-Q1	Increased	65,443	+4.5%	$13M	0.0%	$197.87	29
2025-Q4	Increased	62,643	+12.4%	$10.6M	0.0%	$169.48	31
2025-Q3	Increased	55,732	+8.6%	$7.9M	0.0%	$140.82	30
2025-Q2	Increased	51,307	+34.8%	$5M	0.0%	$97.49	35
2025-Q1	Decreased	38,073	-3.4%	$2.9M	0.0%	$74.63	0
2024-Q4	Decreased	39,408	-1.3%	$3.2M	0.0%	$82.14	0
2024-Q3	Decreased	39,906	-8.1%	$3.1M	0.0%	$78.13	0
2024-Q2	Decreased	43,433	-5.0%	$2.8M	0.0%	$64.86	0
2024-Q1	Decreased	45,742	-4.3%	$2.8M	0.0%	$59.89	0
2023-Q4	Decreased	47,820	-58.4%	$3.2M	0.0%	$66.23	0
2023-Q3	Decreased	114,905	-13.2%	$5.5M	0.0%	$47.27	0
2023-Q2	Decreased	132,308	-5.5%	$7.6M	0.0%	$56.79	0
2023-Q1	Decreased	139,933	-5.2%	$5.3M	0.0%	$37.10	0
2022-Q4	Decreased	147,574	-5.6%	$4.9M	0.0%	$32.44	0
2022-Q3	Decreased	156,392	-1.8%	$3.9M	0.0%	$24.81	0
2022-Q2	Decreased	159,215	-2.3%	$2.5M	0.0%	$15.23	0
2022-Q1	Decreased	163,031	-1.3%	$2.9M	0.0%	$17.38	0
2021-Q4	Decreased	165,104	-1.1%	$2.1M	0.0%	$12.54	0
2021-Q3	Increased	166,991	+3.0%	$2.1M	0.0%	$11.98	27
2021-Q2	Increased	162,186	+1.3%	$2.3M	0.0%	$13.81	26
2021-Q1	Increased	160,084	+0.1%	$3.2M	0.0%	$19.00	26
2020-Q4	Decreased	159,988	-0.6%	$2.4M	0.0%	$14.30	0
2020-Q3	Decreased	161,002	-7.8%	$1.7M	0.0%	$10.09	0
2020-Q2	Decreased	174,652	-22.9%	$1.9M	0.0%	$10.07	0
2020-Q1	Decreased	226,389	-0.7%	$2.2M	0.0%	$9.07	0
2019-Q4	Increased	228,070	+0.9%	$4.7M	0.0%	$19.02	27
2019-Q3	Decreased	225,979	-1.1%	$3.4M	0.0%	$13.88	0
2019-Q2	Decreased	228,484	-5.7%	$3.9M	0.0%	$15.78	0
2019-Q1	Increased	242,188	+2.5%	$6.1M	0.0%	$23.17	28
2018-Q4	First report	236,204	-	$4.4M	0.0%	$16.82	0