Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Adding to insurance — home turf for Berkshire.	Add 8.00%	+2.16M	3.10%
David RolfeTier 1 Wedgewood Partners	Buy (new)	+57K	3.40%
Andreas HalvorsenElite Viking Global Investors	Buy (new)	+1.01M	0.80%
Joel GreenblattElite Gotham Asset Management	Add 52.00%	+1.44M	0.70%

Q3 2025(2 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway	Add 16.00%	+4.30M	3.30%
Joel GreenblattElite Gotham Asset Management	Add 75.00%	+1.20M	0.50%

Q2 2025(2 moves)

Portfolio manager	Activity	Share change	% portfolio
Joel GreenblattElite Gotham Asset Management	Add 13.00%	+188K	0.40%
Andreas HalvorsenElite Viking Global Investors	Sell (exit)	-1.95M	0.00%

Q1 2025(3 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway New Chubb position — surprise quarter entry.	Buy (new)	+24.00M	2.10%
Andreas HalvorsenElite Viking Global Investors	Buy (new)	+1.95M	1.90%
Joel GreenblattElite Gotham Asset Management	Add 20.00%	+231K	0.40%

Q4 2024(2 moves)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Adding Chubb — second build.	Add 8.00%	+1.90M	1.90%
Stanley DruckenmillerTier 1 Duquesne Family Office	Sell (exit)	-35K	0.00%

Q3 2024(1 move)

Portfolio manager	Activity	Share change	% portfolio
Stanley DruckenmillerTier 1 Duquesne Family Office	Buy (new)	+35K	0.30%

Q1 2024(1 move)

Portfolio manager	Activity	Share change	% portfolio
Warren BuffettTier 1 Berkshire Hathaway Berkshire's first Chubb position revealed.	Buy (new)	+26.00M	1.50%

Insider activity

SEC Form 4 filings — when CEOs, CFOs, and 10%+ owners buy or sell their own stock.

Latest news

Recent headlines for CB.

Hedge funds holding CB

1 superinvestor hold Chubb as a top position. Sorted by % of portfolio.

Manager	% Portfolio
Warren Buffett Insurance — Buffett's home turf. Recent build.	2.9%

Dividend tax by country

What will you keep of every $100 in CB dividend?

Your country of residenceCompany is domiciled inGross dividend (example)

Withholding rate

Domestic (no cross-border)

Tax withheld

$0.00

You'd receive

$1000.00

Of $1000 gross

Source & treaty reference

Treaty: Domestic — no cross-border withholding

Citation: IRC §§ 1441–1446 (withholding applies to foreign persons; US residents not subject to WHT on US-source dividends)

U.S. residents receiving U.S.-source dividends: no cross-border withholding; taxed on return at qualified (0/15/20%) or ordinary rates.

Estimates for educational purposes only. Tax rules change; consult a qualified tax professional for your specific situation. Dividend-tax treatment depends on holding period, account type (taxable vs. retirement), investor type (individual vs. pension vs. mutual fund), limitation-on-benefits tests, and other factors not modeled here.

Full dividend-tax rules for United States investors →

Get alerts when they buy or sell CB

One email per 13F filing — you'll know within hours if any tracked manager moves on CB.

Related smart-money signals

Derived from the same 13F filings

Same sector · Financials

Top conviction in this sector

All Financials names →

Frequently asked questions

Who owns CB?

1 tracked superinvestors hold Chubb (CB) as a top position based on the latest SEC 13F filings. Largest tracked holder: Warren Buffett at 2.9% of portfolio. Full ranking by % of portfolio shown in the table below.

How many hedge funds hold CB?

1 of HoldLens's tracked superinvestors hold CB according to the latest SEC 13F filings. The sum of conviction across those holders is 3% (sum of each manager's % of portfolio in CB).

Who is the biggest hedge-fund holder of CB?

Among HoldLens's tracked superinvestors, Warren Buffett holds the largest CB position at 2.9% of portfolio. Insurance — Buffett's home turf. Recent build.

What sector is CB?

Chubb (CB) is classified as Financials. Smart-money activity, insider trades (SEC Form 4), buybacks, short interest, congressional trades, and ETF ownership for CB are all aggregated on this page.

Data sourced from SEC 13F filings. CB ownership reflects publicly disclosed long positions only. Not investment advice.