Exited position

Christopher Bloomstran’s Mercury Genl Corp New (MCY) 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 reportedQ4 2007Earliest verified positive filing snapshot
Latest statusExited positionBased on the latest supported relationship state
Peak shares1.39MHighest verified quarter-end share count
Quarters reported68Verified quarters with shares above zero
What happened?

Semper Augustus Investments Group LLC first reported Mercury Genl Corp New in Q4 2007. The reported position was increased and reduced across later filings. The latest verified relationship event shows that Semper Augustus Investments Group LLC sold the entire position in Q1 2025, 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.

Q1 2025
Sold the entire position−26.81K shares · No shares reported at quarter-end
Q4 2024
Sold 55.0% of the position−32.72K shares · 26.81K shares remained
Filing context

Quarter-end price $66.48 · Estimated holding basis $31.49

Q3 2024
Sold 95.7% of the position−1.34M shares · 59.53K shares remained
Filing context

Quarter-end price $62.98 · Estimated holding basis $31.49

Q2 2024
Bought 0.05% more+756 shares · 1.39M shares reported after the change
Filing context

Quarter-end price $53.14 · Estimated holding basis $31.49

Q1 2024
Bought 0.2% more+2.98K shares · 1.39M shares reported after the change
Filing context

Quarter-end price $51.60 · Estimated holding basis $31.48

Q4 2023
Bought 2.9% more+39.85K shares · 1.39M shares reported after the change
Filing context

Quarter-end price $37.31 · Estimated holding basis $31.44

5 unchanged quarters are collapsed by default.

Portfolio importance

How important was Mercury Genl Corp New 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 weight0.3%Q4 2024
Last reported rank#23of 37 reported positions
Peak portfolio weight13.5%Q1 2010
Best historical rank#1Q2 2008
At peak importanceQ1 2010
MCY
13.5%
Largest holding
15.4%
Cross-investor discovery

Who else owns Mercury Genl Corp New?

Also reported by 1 other tracked investor in their latest verified filings.

Joel GreenblattGotham Asset Management
MCY0.0% of reported portfolio
Explore Mercury Genl Corp New across all tracked investors →
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$100.942026-09-18

Market context only; not an investor transaction price.

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

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.