Bel Fuse Inc.
Bel Fuse Inc. (BELFA) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BELFA · as of Sep 30, 2025
Ownership Breakdown
63
Institutional Holders
▲ 6 vs Q2
$106.74M
Total Inst. Value
▲ $25.72M vs Q2
12.66M
Shares Outstanding
freeFloat 95.40%
917,400
13F Shares Held
▲ 15,673 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
BELFA largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BROWN ADVISORY INC electronic coils, transformers & other inductors | 155.3K | 1.23% | 1.23% | $18.07B | Nov 14, 2025 | ▼ 4.6K |
FMR LLC electronic coils, transformers & other inductors | 88.6K | 69.97% | 69.97% | $10.31B | Nov 13, 2025 | ▲ 20.2K |
BLACKROCK, INC. electronic coils, transformers & other inductors | 86.8K | 68.54% | 68.54% | $10.10B | Nov 12, 2025 | ▼ 4.0K |
GAMCO INVESTORS, INC. ET AL electronic coils, transformers & other inductors | 75.7K | 59.80% | 59.80% | $8.81B | Nov 12, 2025 | ▼ 5.3K |
GABELLI FUNDS LLC electronic coils, transformers & other inductors | 66.6K | 52.58% | 52.58% | $7.75B | Nov 12, 2025 | ▼ 800 |
DIMENSIONAL FUND ADVISORS LP electronic coils, transformers & other inductors | 62.3K | 49.18% | 49.18% | $7.25B | Nov 12, 2025 | ▼ 15.3K |
VANGUARD GROUP INC electronic coils, transformers & other inductors | 52.6K | 41.54% | 41.54% | $6.12B | Nov 7, 2025 | ▲ 6.4K |
RENAISSANCE TECHNOLOGIES LLC electronic coils, transformers & other inductors | 42.8K | 33.75% | 33.75% | $4.97B | Nov 13, 2025 | ▲ 300 |
GEODE CAPITAL MANAGEMENT, LLC electronic coils, transformers & other inductors | 34.9K | 27.58% | 27.58% | $4.07B | Nov 12, 2025 | ▼ 1.5K |
ADVISORY RESEARCH INC electronic coils, transformers & other inductors | 28.3K | 22.30% | 22.30% | $3.29B | Nov 13, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
20
Increased
+48.7K shares5
New Positions
first time holders17
Decreased
−44.9K shares0
Sold Out
fully exitedNet shares change (top 50)
+3.8K
+48.7K / −44.9K
Net new holders
+8
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
BELFA insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
15
Buy transactions
19
Sell transactions
0.79
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Bittner Peter Pres. - Connectivity Solution | Mar 15, 2026 | Award | 762 | — | — | 4.0K | Form 4 ↗ |
Tuweiq Farouq Salem Ali President and CEO | Mar 15, 2026 | Award | 5,081 | — | — | 35.9K | Form 4 ↗ |
GILBERT PETER E director | Mar 15, 2026 | Award | 1,965 | — | — | 17.0K | Form 4 ↗ |
SEGALL MARK B director | Mar 15, 2026 | Award | 1,030 | — | — | 13.5K | Form 4 ↗ |
Hutkin Lynn Chief Financial Officer | Mar 15, 2026 | Award | 695 | — | — | 23.5K | Form 4 ↗ |
Berry Joseph VP, Pres of Magnetic Solutions | Mar 15, 2026 | Award | 419 | — | — | 18.2K | Form 4 ↗ |
Lai Kenneth Koon Keung VP of Asia Operations | Mar 15, 2026 | Award | 329 | — | — | 8.1K | Form 4 ↗ |
Lai Kenneth Koon Keung VP of Asia Operations | Mar 16, 2026 | Sale | 552 | $203.21 | $112.2K | 7.5K | Form 4 ↗ |
BERNSTEIN DANIEL
| Mar 15, 2026 | Award | 1,429 | — | — | 30.2K | Form 4 ↗ |
BERNSTEIN DANIEL
| Mar 16, 2026 | Sale | 6,667 | $203.21 | $1.35M | 23.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Bel Fuse Inc. (BELFA) is primarily owned by institutional investors, who hold approximately 7.2% of total shares outstanding. Company insiders own approximately 4.60%, while retail and public investors account for the remaining 88.16%.
The largest institutional shareholder of Bel Fuse Inc. is BROWN ADVISORY INC, holding approximately 155,340 shares — equal to 1.23% of outstanding shares — as of September 30, 2025.
A total of 63 institutional investors currently hold BELFA stock, with a combined institutional value of approximately $106,736,707 as of the most recent 13F filing period.
Frequently asked questions
BELFA ownershipBel Fuse Inc. (BELFA) is primarily owned by institutional investors, who hold approximately 7.2% of shares. The largest shareholder is BROWN ADVISORY INC with a 1.23% stake. Company insiders hold 4.60%. Data sourced from SEC Form 13F as of September 30, 2025.