Exited position

Christopher Bloomstran’s Amazon (AMZN) 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 reportedQ3 2024Earliest verified positive filing snapshot
Latest statusExited positionBased on the latest supported relationship state
Peak shares1.27KHighest verified quarter-end share count
Quarters reported2Verified quarters with shares above zero
What happened?

Semper Augustus Investments Group LLC first reported Amazon in Q3 2024. The reported position was 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−960 shares · No shares reported at quarter-end
Q4 2024
Sold 24.5% of the position−312 shares · 960 shares remained
Filing context

Quarter-end price $219.39 · Estimated holding basis $186.33

Q3 2024
New position+1.27K shares · 1.27K shares reported
Filing context

Quarter-end price $186.33 · Estimated holding basis $186.33

Portfolio importance

How important was Amazon 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 weight0.0%Q4 2024
Last reported rank#37of 37 reported positions
Peak portfolio weight0.0%Q3 2024
Best historical rank#36Q3 2024
At peak importanceQ3 2024
AMZN
0.0%
Largest holding
18.5%
Cross-investor discovery

Who else owns Amazon?

Also reported by 11 other tracked investors in their latest verified filings.

Seth KlarmanBaupost Group
AMZN16.5% of reported portfolio
David TepperAppaloosa LP
AMZN16.0% of reported portfolio
Bill AckmanPershing Square Capital Management
AMZN10.5% of reported portfolio
Explore Amazon across all tracked investors →
MarketInsiderLab research

Connected research on Amazon

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

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Amazon can buy up to $60 billion of Qualcomm AI chips and services, but the SEC filing shows…

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$253.712026-09-18

Market context only; not an investor transaction price.

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

View Amazon 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.