Bel Fuse Inc.
Bel Fuse Inc. (BELFB) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BELFB · as of Sep 30, 2025
Ownership Breakdown
203
Institutional Holders
▲ 28 vs Q2
$1.31B
Total Inst. Value
▲ $375.22M vs Q2
12.11M
Shares Outstanding
freeFloat 99.78%
9.35M
13F Shares Held
▼ 261,916 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
BELFB largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC electronic coils, transformers & other inductors | 908.0K | 7.34% | 7.34% | $128.05B | Nov 7, 2025 | ▼ 2.1K |
BLACKROCK, INC. electronic coils, transformers & other inductors | 838.4K | 6.78% | 6.78% | $118.24B | Nov 12, 2025 | ▲ 8.3K |
FMR LLC electronic coils, transformers & other inductors | 610.4K | 4.94% | 4.94% | $86.08B | Nov 13, 2025 | ▲ 335.8K |
JANUS HENDERSON GROUP PLC electronic coils, transformers & other inductors | 519.5K | 4.20% | 4.20% | $73.29B | Nov 14, 2025 | ▲ 92.1K |
PRICE T ROWE ASSOCIATES INC /MD/ electronic coils, transformers & other inductors | 478.7K | 3.87% | 3.87% | $67.51B | Nov 14, 2025 | ▲ 325.7K |
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. electronic coils, transformers & other inductors | 357.3K | 2.89% | 2.89% | $50.38B | Nov 14, 2025 | ▲ 185.0K |
DIMENSIONAL FUND ADVISORS LP electronic coils, transformers & other inductors | 335.8K | 2.72% | 2.72% | $47.35B | Nov 12, 2025 | ▼ 309.7K |
GEODE CAPITAL MANAGEMENT, LLC electronic coils, transformers & other inductors | 265.1K | 2.14% | 2.14% | $37.39B | Nov 12, 2025 | ▼ 56.8K |
RENAISSANCE TECHNOLOGIES LLC electronic coils, transformers & other inductors | 252.9K | 2.05% | 2.05% | $35.66B | Nov 13, 2025 | ▼ 30.6K |
THRIVENT FINANCIAL FOR LUTHERANS electronic coils, transformers & other inductors | 245.2K | 1.98% | 1.98% | $34.58B | Nov 4, 2025 | ▲ 98.2K |
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
+1.35M shares4
New Positions
first time holders24
Decreased
−1.47M shares0
Sold Out
fully exitedNet shares change (top 50)
124.5K
+1.35M / −1.47M
Net new holders
+0
4 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
BELFB 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. (BELFB) is primarily owned by institutional investors, who hold approximately 77.2% of total shares outstanding. Company insiders own approximately 0.22%, while retail and public investors account for the remaining 22.57%.
The largest institutional shareholder of Bel Fuse Inc. is VANGUARD GROUP INC, holding approximately 908,032 shares — equal to 7.34% of outstanding shares — as of September 30, 2025.
A total of 203 institutional investors currently hold BELFB stock, with a combined institutional value of approximately $1.31 billion as of the most recent 13F filing period.
Frequently asked questions
BELFB ownershipBel Fuse Inc. (BELFB) is primarily owned by institutional investors, who hold approximately 77.2% of shares. The largest shareholder is VANGUARD GROUP INC with a 7.34% stake. Company insiders hold 0.22%. Data sourced from SEC Form 13F as of September 30, 2025.