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BELFB — BEL FUSE INC

Reported value held$1.78B
Funds holding (latest)41
SectorInformation Technology
Funds holding (Q2 2026)33
Institutional value$1.45B · 5.37M sh
New / Add / Cut / Exit4 / 21 / 8 / 3
Top-5 / Top-10 concentration67.9% / 85.9%
Institutional holdings change Accumulating +15.9% (+738.51K sh)
Institutional value change Up +89.3%

As of Q2 2026, 33 SEC-registered investment managers reported holding BELFB (BEL FUSE INC) in their latest 13F filings, with a combined reported value of $1.45B across 5.37M shares. That is +15.9% by share count (+738.51K shares) versus the previous quarter, while reported value moved +89.3%. Ownership is concentrated: the five largest holders account for 67.9% of reported value and the top ten for 85.9%.

Compared with the prior quarter, 4 opened new positions, 21 added to existing stakes, 8 trimmed, 3 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

BELFB is classified in the Information Technology sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
BlackRock Inc history Q2 2026 1.02M $340.45M 0.01% Add
Fidelity Management & Research (FMR) history Q2 2026 876.10K $291.78M 0.01% Add
Vanguard Group history Q4 2025 908.72K $154.15M 0.00% Hold
Janus Henderson Group history Q1 2026 760.14K $150.59M 0.07% Add
BNY Mellon history Q2 2026 389.90K $129.85M 0.02% Add
Geode Capital Management history Q2 2026 363.32K $121.02M 0.01% Add
Franklin Resources history Q2 2026 300.24K $99.99M 0.02% Add
JPMorgan Chase & Co history Q2 2026 243.29K $76.96M 0.01% New
Renaissance Technologies history Q2 2026 207.74K $69.19M 0.10% Reduce
Northern Trust Corp history Q2 2026 124.17K $41.35M 0.01% Add
Charles Schwab Investment Management history Q2 2026 112.61K $37.50M 0.01% Add
Invesco Ltd history Q2 2026 105.25K $35.05M 0.00% Add
Royce & Associates history Q2 2026 87.08K $29.00M 0.23% Reduce
MFS Investment Management history Q1 2026 123.50K $24.45M 0.01% Reduce
Goldman Sachs Group history Q2 2026 70.16K $23.37M 0.00% Reduce
Morgan Stanley history Q2 2026 62.30K $20.75M 0.00% Add
Bank of America Corp history Q2 2026 61.54K $20.49M 0.00% Add
Marshall Wace history Q2 2026 59.58K $19.84M 0.02% New
Citadel Advisors history Q2 2026 45.27K $15.08M 0.00% Reduce
D. E. Shaw & Co history Q2 2026 41.20K $13.72M 0.01% Add

View all 41 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 846.62K 842.18K 840.68K 830.10K 838.43K 866.07K 846.92K 1.02M
Fidelity Management & Research (FMR) 16 16 737 737 737 737 737 746 755 5.81K 5.74K 929 1.00K 1.03K 2.49K 274.62K 610.43K 667.68K 631.31K 876.10K
BNY Mellon 58.90K 70.18K 72.16K 71.03K 74.47K 89.37K 104.96K 129.39K 127.38K 104.33K 102.19K 77.93K 69.49K 61.81K 58.30K 62.63K 61.88K 53.69K 51.24K 389.90K
Geode Capital Management 106.84K 108.88K 109.73K 111.59K 107.76K 111.42K 114.10K 229.03K 251.56K 258.77K 266.71K 283.05K 289.30K 292.02K 313.68K 321.92K 265.15K 267.95K 308.05K 363.32K
Franklin Resources — — — — — — — 4.68K 4.68K 9.68K 9.95K 11.09K 5.28K 10.88K 15.15K 17.18K 21.70K 12.30K 114.35K 300.24K
JPMorgan Chase & Co 21.70K 29.28K 29.03K 23.09K 3.46K 1.20K 50.98K 8.14K 47.26K 26.59K 46.28K 27.59K 30.39K 21.06K 9.82K 9.94K 9.91K 143.36K — 243.29K
Renaissance Technologies 510.65K 544.85K 479.25K 438.85K 452.55K 404.65K 352.95K 333.05K 359.05K 324.84K 305.82K 309.85K 305.45K 303.53K 323.75K 283.45K 252.85K 231.35K 213.87K 207.74K
Northern Trust Corp 34.62K 32.81K 31.48K 31.40K 31.46K 29.86K 30.08K 101.15K 104.15K 106.29K 104.42K 100.07K 103.20K 115.50K 110.89K 108.32K 108.09K 100.94K 104.88K 124.17K
Charles Schwab Investment Management — — — — — — — 28.40K 78.67K 99.72K 107.02K 98.49K 113.79K 103.10K 97.39K 98.60K 99.03K 100.17K 97.67K 112.61K
Invesco Ltd 16.10K 15.12K 24.86K 30.86K 82.91K 88.97K 386.33K 318.66K 188.85K 280.81K 314.37K 398.34K 382.83K 189.81K 173.98K 137.41K 174.58K 169.35K 74.03K 105.25K
Royce & Associates 42.56K 37.00K 15.62K — — — — 1.39K 1.49K 53.75K 440.45K 442.39K 436.66K 433.88K 417.60K 382.45K 200.30K 92.03K 97.17K 87.08K
Goldman Sachs Group 26.35K 22.89K 17.48K 16.10K — — — 15.17K 22.02K 20.75K 27.67K 57.88K 52.07K 46.95K 33.91K 37.26K 61.22K 80.99K 84.15K 70.16K
Morgan Stanley 109.73K 154.02K 127.46K 254.43K 279.90K 259.49K 268.41K 208.93K 44.90K 78.70K 55.44K 74.65K 80.79K 52.74K 45.21K 31.04K 38.16K 41.56K 61.25K 62.30K
Bank of America Corp 2.47K 315 74 12 11 17 11.81K 13.89K 8.75K 14.60K 7.06K 7.10K 11.88K 10.69K 7.72K 22.05K 14.02K 10.26K 10.35K 61.54K
Marshall Wace 133.49K 98.40K 94.10K 53.10K — — 19.25K 13.99K — — — — — — — — 6.42K — — 59.58K
Citadel Advisors 71.21K 61.39K 50.59K 65.88K 62.82K 113.77K 20.00K 28.74K 84.01K 78.56K 76.18K 20.50K 13.30K 9.80K 5.70K 34.66K 103.45K 18.45K 63.33K 45.27K
D. E. Shaw & Co 24.30K 69.46K 62.54K 58.39K 73.27K 76.91K 27.12K 77.03K 7.28K 4.01K — — — — — — — — 13.10K 41.20K
UBS Group AG 1.96K 1.00K 2.05K 6 2.38K 1.29K 1.37K 9.28K 8.78K 13.30K 12.11K 4.80K 7.40K 12.33K 32.86K 29.70K 14.76K 46.58K 57.23K 41.12K
Polen Capital Management — — — — — — — — — — — — — — — 20.39K 19.54K 22.52K 43.34K 32.84K
Wells Fargo & Co 64 63 63 70 70 71 71 4.04K 2.67K 3.44K 5.28K 5.24K 5.50K 6.84K 6.83K 7.29K 8.61K 12.29K 5.11K 18.12K

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