Exited position

Christopher Bloomstran’s Chubb Limited (CB) position

Reported position history, portfolio importance and verified filing changes from public SEC disclosures.

Semper Augustus Investments Group LLCVerified through Q2 2026
Relationship snapshot

At a glance

The full verified relationship, including prior ownership episodes and exits where supported.

First reportedQ1 2016Earliest verified positive filing snapshot
Latest statusExited positionBased on the latest supported relationship state
Peak shares6.02KHighest verified quarter-end share count
Quarters reported5Verified quarters with shares above zero
What happened?

Semper Augustus Investments Group LLC first reported Chubb Limited in Q1 2016. The latest verified relationship event shows that Semper Augustus Investments Group LLC sold the entire position in Q2 2017, and the stock is no longer reported in the latest verified portfolio.

Verified SEC history

Position over time

See the same verified relationship through reported shares, portfolio weight or reported value.

Metric

Gaps indicate periods that cannot be safely connected or where a verified corporate action changes the raw share scale. Stock price, when available, is market context and not a transaction price.

Key filing events

What changed

Latest filing plus the most meaningful reported changes. Unchanged quarters are collapsed by default.

Q2 2017
Sold the entire position−6.02K shares · No shares reported at quarter-end
Q1 2016
New position+6.02K shares · 6.02K shares reported
Filing context

Quarter-end price $119.14 · Estimated holding basis $119.14

4 unchanged quarters are collapsed by default.

Portfolio importance

How important was Chubb Limited in Semper Augustus Investments Group LLC’s reported portfolio?

Relative importance is measured only within the verified primary non-option reported portfolio for each quarter.

Last reported portfolio weight0.6%Q1 2017
Last reported rank#26of 28 reported positions
Peak portfolio weight0.6%Q1 2017
Best historical rank#25Q1 2016
At peak importanceQ1 2017
CB
0.6%
Largest holding
22.7%
Cross-investor discovery

Who else owns Chubb Limited?

Also reported by 4 other tracked investors in their latest verified filings.

Warren BuffettBerkshire Hathaway
CB3.9% of reported portfolio
Joel GreenblattGotham Asset Management
CB0.1% of reported portfolio
George SorosSoros Fund Management
CB0.1% of reported portfolio
Explore Chubb Limited across all tracked investors →
MarketInsiderLab research

Connected research on Chubb Limited

Only published MIL research mapped to the exact stock identity is shown here.

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SEC evidence & methodology

SEC filing evidence

Market context and filing-derived values are kept separate from actual transaction prices, which 13F filings do not disclose.

Latest verified stock price$340.642026-09-18

Market context only; not an investor transaction price.

Latest verified investor filingQ2 2026 · filed 2026-08-14
Open SEC filing ↗

View Chubb Limited stock page →

This tracker follows Semper Augustus Investments Group LLC’s Form 13F disclosures, not Christopher Bloomstran’s personal brokerage account. Form 13F reports quarter-end positions later and does not reveal exact trade dates or execution prices.