BELFA

Bel Fuse Inc-CL A Cross-source read
Information TechnologyCUSIP 077347201

Among active 13F managers last quarter, 17 opened and 19 added, while 13 reduced; the largest holder to move was Mangrove Partners Im, LLC (82× the prior stake). No recent Form 4 insider filings for BELFA.

Tracked 13F holders
88
38 in Q2 2026 filings
13F value (tracked)
$185.1M
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
36 adding · 13 trimming
Insiders · Form 4 open-market, 180d
0 buying · 0 selling
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Who owns BELFA?

88 tracked 13F filers · ranked by shares held

88 tracked 13F filers disclose a position in BELFA as of the latest SEC 13F filings, a combined $185.1M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

#FundSharesPosition valueLast moveAs ofHistory
1Brown Advisory Inc134K
$24.2M
−6.0%
Reduced · −9K sh
Q1 2026
2Mangrove Partners Im, LLC105K
$30.5M
82×
Added · +103K sh
Q2 2026
3Renaissance Technologies LLC68K
$12.3M
+62%
Added · +26K sh
Q1 2026
4Gabelli Funds LLC64K
$11.5M
−2.1%
Reduced · −1K sh
Q1 2026
5Gamco Investors, Inc. Et Al53K
$9.6M
−19%
Reduced · −12K sh
Q1 2026
6Cable Car Capital, LP46K
$13.5M
−0.6%
Reduced · −300 sh
Q2 2026
7Dimensional Fund Advisors LP45K
$8.1M
−18%
Reduced · −10K sh
Q1 2026
8State Street Corp45K
$13.0M
+55%
Added · +16K sh
Q2 2026
9Geode Capital Management, LLC40K
$11.8M
+16%
Added · +6K sh
Q2 2026
10Hound Partners, LLC35K
$6.3M
−7.5%
Reduced · −3K sh
Q1 2026
11Brasada Capital Management, LP17K
$4.9M
−5.8%
Reduced · −1K sh
Q2 2026
12Jane Street Group, LLC13K
$2.4M
+119%
Added · +7K sh
Q1 2026
13Arrowstreet Capital, Limited Partnership12K
$2.2M
−15%
Reduced · −2K sh
Q1 2026
14Northern Trust Corp12K
$2.1M
+3.4%
Added · +390 sh
Q1 2026
15Sei Investments Co10K
$1.7M
+110%
Added · +5K sh
Q1 2026
16Marshall Wace, LLP10K
$1.7M
+272%
Added · +7K sh
Q1 2026
17Qube Research & Technologies Ltd9K
$1.7M
+116%
Added · +5K sh
Q1 2026
18Morgan Stanley7K
$1.3M
+55%
Added · +3K sh
Q1 2026
19UBS Group AG7K
$1.3M
+7.1%
Added · +476 sh
Q1 2026
20Nitor Capital Management LLC7K
$2.0M
Held
Q2 2026
21Triasima Portfolio Management inc.7K
$2.0M
+296%
Added · +5K sh
Q2 2026
22Man Group plc5K
$1.6M
New
+5K sh
Q2 2026
23Goldman Sachs Group Inc5K
$942K
+71%
Added · +2K sh
Q1 2026
24XTX Topco Ltd5K
$941K
New
+5K sh
Q1 2026
25Herald Investment Management Ltd5K
$1.5M
Held
Q2 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is BELFA being bought or sold by institutions?

Last quarter, 17 funds opened a new position in BELFA and 19 added to an existing one, while 13 reduced. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
17
funds took a first position
Added
19
added to an existing position
Reduced
13
reduced, still holding
Biggest moves · ranked by size of the change, positions above a floor

Funds that own BELFA also own

CompanyCo-held byTheir position there
Microsoft CorpMSFT51 funds$116.1B
Amazon.com IncAMZN50 funds$79.4B
Nvidia CorpNVDA49 funds$160.7B
Apple IncAAPL48 funds$125.7B
Alphabet Inc-CL AGOOGL48 funds$66.9B
Alphabet Inc-CL CGOOG48 funds$51.2B
Eli Lilly & CoLLY47 funds$30.9B
Tesla IncTSLA47 funds$25.8B
Berkshire Hathaway Inc-CL BBRK/B47 funds$13.7B
Amphenol Corp-CL AAPH47 funds$10.8B
Broadcom IncAVGO46 funds$67.8B
Meta Platforms Inc-Class AMETA46 funds$42.4B

Ranked by how many of BELFA's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in BELFA.

Insider activity (Form 4)

No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.

Do institutions, insiders and Congress agree?

Mixed signals

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
3922
Insiders
Form 4 open-market
00$0
US House
STOCK Act trades
00$0
Sector rotation
BELFA is in Information Technology, which smart money is rotating INTO
+$58.0B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

38 tracked filers in Q2 2026 filingsstill filing
04487Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $86.8M
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Share classes

Class13F holdersValue held
BELFBcs234 funds$2.1B
BELFAthis pagecs98 funds$234.2M

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

0 most recent

No filings captured for this ticker in the live stream yet.

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Connected entities for BELFA

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Ask your agent what changed in BELFA

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/BELFA/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for BELFA.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + the live filing stream, joined for BELFA. Filings are public domain, sourced to SEC EDGAR.