Current position

Stanley Druckenmiller’s Thermo Fisher Scientific Inc (TMO) position

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

Duquesne Family OfficeVerified through Q2 2026
Relationship snapshot

At a glance

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

First reportedQ2 2025Earliest verified positive filing snapshot
Latest statusCurrent positionBased on the latest supported relationship state
Peak shares19.20KHighest verified quarter-end share count
Quarters reported2Verified quarters with shares above zero
What happened?

Duquesne Family Office first reported Thermo Fisher Scientific Inc in Q2 2025. After an earlier exit, the position later appeared again in a verified filing. Duquesne Family Office currently reports 19.20K shares. The latest verified filing showed: New position.

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 2026
New position+19.20K shares · 19.20K shares reported
Filing context

Quarter-end price $501.35 · Estimated holding basis $501.35

Q3 2025
Sold the entire position−12.20K shares · No shares reported at quarter-end
Q2 2025
New position+12.20K shares · 12.20K shares reported
Filing context

Quarter-end price $405.49 · Estimated holding basis $405.49

Portfolio importance

How important is Thermo Fisher Scientific Inc in Duquesne Family Office’s reported portfolio?

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

Current portfolio weight0.2%Q2 2026
Current rank#68of 86 reported positions
Peak portfolio weight0.2%Q2 2026
Best historical rank#62Q2 2025
At peak importanceQ2 2026
TMO
0.2%
Largest holding
19.9%
Cross-investor discovery

Who else owns Thermo Fisher Scientific Inc?

Also reported by 2 other tracked investors in their latest verified filings.

Joel GreenblattGotham Asset Management
TMO0.2% of reported portfolio
Ray DalioBridgewater Associates, LP
TMO0.0% of reported portfolio
Explore Thermo Fisher Scientific Inc 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$609.822026-09-11

Market context only; not an investor transaction price.

Latest filing quarter-end price$501.35Q2 2026

Derived from validated reported value and shares where supported.

Estimated holding basis$501.35Historical reference — not actual purchase price

Calculated from supported filing history.

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

This tracker follows Duquesne Family Office LLC’s Form 13F disclosures—not Stanley Druckenmiller’s personal brokerage account. Form 13F reports quarter-end U.S.-listed positions and certain options, but it does not reveal exact trade dates, execution prices, short positions or the purpose of an option position.