Jane Street’s Bel Fuse Inc Class B BELFB Stock Holding History

Jane Street’s Portfolio BELFB Stock Details BELFB Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$24.7M	Buy	74,187 +35,837	+93%	+$9.68M	﹤0.01%	1961
2026 Q1	$7.59M	Buy	+38,350	New	+$8.01M	﹤0.01%	2897
2025 Q4	–	Sell	-72,480	Closed	-$10.2M	–	11120
2025 Q3	$10.2M	Buy	+72,480	New	+$9.24M	﹤0.01%	2393
2025 Q2	–	Sell	-9,989	Closed	-$748K	–	9624
2025 Q1	$748K	Sell	9,989 -6,342	-39%	-$507K	﹤0.01%	6110
2024 Q4	$1.35M	Buy	16,331 +5,641	+53%	+$456K	﹤0.01%	4844
2024 Q3	$839K	Sell	10,690 -4,244	-28%	-$289K	﹤0.01%	6223
2024 Q2	$974K	Sell	14,934 -5,664	-27%	-$356K	﹤0.01%	5824
2024 Q1	$1.24M	Buy	20,598 +10,269	+99%	+$636K	﹤0.01%	5014
2023 Q4	$690K	Buy	10,329 +2,115	+26%	+$113K	﹤0.01%	6226
2023 Q3	$392K	Buy	8,214 +2,207	+37%	+$114K	﹤0.01%	6647
2023 Q2	$345K	Sell	6,007 -50,975	-89%	-$2.33M	﹤0.01%	6905
2023 Q1	$2.14M	Buy	56,982 +44,964	+374%	+$1.62M	﹤0.01%	3709
2022 Q4	$396K	Buy	+12,018	New	+$392K	﹤0.01%	6551
2021 Q4	–	Sell	-11,395	Closed	-$141K	–	10053
2021 Q3	$141K	Buy	+11,395	New	+$153K	﹤0.01%	9096

Other funds holding BELFB

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Jupiter Topco New York $245B AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Jane Street's BELFB Position: Q2 2026 in Review

Jane Street increased its Bel Fuse Inc Class B (BELFB) stake by 93% in Q2 2026, buying an estimated $9.68M and bringing the position to 74,187 shares worth $24.7M. The position accounts for ﹤0.01% of the portfolio, ranked #1961.

Jane Street first reported a position in BELFB in Q3 2021 and has held it in 14 quarters since. 276 funds tracked by Wall St. Rank hold BELFB as of Q2 2026.

Jane Street held 74,187 shares of Bel Fuse Inc Class B worth $24.7M as of Q2 2026.
Jane Street bought 35,837 Bel Fuse Inc Class B shares in Q2 2026, an estimated $9.68M.
Bel Fuse Inc Class B made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #1961 holding.
Jane Street first reported a position in Bel Fuse Inc Class B in Q3 2021 and has held it in 14 quarters since.
276 funds tracked by Wall St. Rank held Bel Fuse Inc Class B as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.