13F · JEFFERIES FINANCIAL GROUP IN

JEF institutional ownership and 13F activity

Track JEF institutional ownership through SEC 13F filings, including top shareholders, reported positions, portfolio weights, buys, sells, and quarterly holding trends.

Historical filing data, not live positions.Snapshot generated Sep 12, 2026 from SEC EDGAR 13F-HR information tables. 13F reports can arrive up to 45 days after quarter-end and omit many asset types.
01

JEF Institutional Ownership Snapshot

See how many institutions reported JEF, their combined market value, ownership concentration, and latest position changes.

Active holders1
Reported value$21.7M
Top 5 concentration100.0%
New holders0
Reduced holders0
Exited holders0
02

JEF Ownership Takeaways

Highlights from the latest JEF 13F filings, including the largest holder, biggest increase, largest reduction, and ownership concentration.

Largest reported holderBerkshire Hathaway$21.7M · 0.01% of its portfolio
Largest increaseBased on reported share-count change versus the prior filing.
Largest reductionReported changes can reflect trading, prices, or filing coverage.
Ownership concentration100.0%of aggregate reported value is held by the top five tracked holders.
03

Who Owns JEF? Institutional Holders

Compare 1 current and exited JEF positions by manager, shares, reported market value, portfolio weight, and quarter-over-quarter change.

ManagerSharesReported valuePortfolio weightShare changeStatus
Warren Buffett / Berkshire HathawayJun 30, 2026 · CIK 0001067983433,558$21.7M0.01%0.0%Unchanged
04

JEF Institutional Buying and Selling

See which institutions opened, increased, reduced, or exited JEF positions compared with their previous 13F filing.

New 0

No holders in this category.

Increased 0

No holders in this category.

Reduced 0

No holders in this category.

Exited 0

No holders in this category.

05

Types of Institutional Holders

Compare concentrated funds, diversified managers, and broad portfolios that reported JEF. Categories are based on portfolio breadth, not SEC classifications.

Concentrated managers1
tracked holders
06

JEF Institutional Ownership by Quarter

Follow reported JEF holders, shares, and market value across recent quarters. The institutions included may vary by filing period.

Q2 20261 holders
$21.7M433,558 shares
Q1 20261 holders
$17.9M433,558 shares
Q4 20251 holders
$26.9M433,558 shares
Q3 20251 holders
$28.4M433,558 shares
Q2 20251 holders
$23.7M433,558 shares
QuarterHoldersReported valueSharesNewExits
Jun 30, 20261$21.7M433,55800
Mar 31, 20261$17.9M433,55800
Dec 31, 20251$26.9M433,55800
Sep 30, 20251$28.4M433,55800
Jun 30, 20251$23.7M433,55800
07

Stocks Held by Similar Institutions

Discover other stocks reported by institutions that also hold JEF, and compare holder counts, market value, and concentration.

08

Common Questions About JEF

Who is the largest tracked institutional holder of JEF?

Berkshire Hathaway is the largest active holder in the current JEF sample, reporting $21.7M. The JEF holder table ranks every matched manager.

Which institution increased its JEF position the most?

No tracked institution reported an increase or new JEF position in the current cycle.

Which institution reduced or exited JEF most significantly?

No tracked institution reported a reduction or exit in JEF during the current cycle.

Did new holders enter or existing holders exit JEF?

0 new holders entered and 0 holders fully exited in the current filing cycle. Counts reflect the SEC 13F filings currently included on BasisPilot.

How concentrated is tracked ownership in JEF?

The five largest tracked holders account for 100.0% of aggregate reported JEF value. This is concentration within the tracked sample, not the entire market.

How has tracked ownership in JEF changed across four quarters?

From the oldest comparable quarter to the latest, aggregate reported JEF value among tracked managers decreased by 8.6%. Manager coverage can vary by quarter.

What company evidence should be checked alongside JEF's 13F changes?

Review JEFFERIES FINANCIAL GROUP IN's latest earnings, SEC filings, guidance, capital allocation, and material company events. Delayed 13F data alone cannot confirm that a manager still holds the same position today.

09

Sources and Methodology

Source: SEC EDGAR Form 13F-HR information tables. Positions are grouped by investment manager and ticker, then compared with the prior available filing. 13F data is delayed, historical, and does not represent a manager's complete or current portfolio.