Institutional holders net sold $1.45 billion (533 net sellers vs 325 net buyers) while insiders net bought $586 million over 90 days (confidence score 70), creating a clear split in smart-money direction.

Confirmation

A shift toward institutional accumulation or an increase in insider buying breadth would confirm a bullish breakout.

Invalidation Risk

Accelerating institutional outflows or the first insider sale in the window would invalidate the neutral equilibrium.

The above is AI-generated from public regulatory filings and summarizes historical data only. It is not investment advice and should not be used as the basis for any buy or sell decision.

Insider Trading (Form 4)

7090d confidence

unique buyers

$586.35M

buy value

data as of 2026-07-16

12-Month Buy/Sell Activity

Dec 25

Mar 26

BuySell

操作	內部人	職稱	交易日	金額
買入	MS&AD Insurance Group Holdings, Inc.	Insider	2026-03-03	$5.31M
買入	MS&AD Insurance Group Holdings, Inc.	Insider	2026-03-03	$2.79M
買入	MS&AD Insurance Group Holdings, Inc.	Insider	2026-03-02	$7.39M
買入	MS&AD Insurance Group Holdings, Inc.	Insider	2026-03-02	$3.26M
買入	MS&AD Insurance Group Holdings, Inc.	Insider	2026-02-27	$10.53M
買入	MS&AD Insurance Group Holdings, Inc.	Insider	2026-02-26	$10.42M
買入	MS&AD Insurance Group Holdings, Inc.	Insider	2026-02-26	$541K
買入	MITSUI SUMITOMO INSURANCE CO LTD	Insider	2026-02-25	$1.03M

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Form 144 Pre-Sale Notices

No Form 144 planned sale filings in the last 90 days

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding WR BERKLEY CORP (WRB)?

Major stakeholders currently include Mitsui Sumitomo Insurance Co Ltd ($3.9B), BlackRock, Inc. ($1.5B), Vanguard Capital Management LLC ($1.3B). Based on the latest 13F filings, there are a total of 919 tracked investment funds and institutions maintaining positions in WRB.

What is the overall institutional sentiment toward WRB recently?

Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $1.5B, driven by 325 managers accumulating shares while 533 reduced their exposure.

Which institutions have been selling or reducing their WRB positions?

In the latest period, 424 funds trimmed their holdings, and 109 managers completely exited their positions. The aggregate reported sell value was $10.5B.

Are there any notable investors adding WRB to their portfolios?

Yes, buying activity remains notable. 82 institutions opened new positions in {ticker}, and 243 existing holders added to their shares. The total reported buy value for the quarter amounted to $7.9B.