Duquesne Family Office LLC (Stanley Druckenmiller) 13F Portfolio & Holdings
This page tracks the 13F filings for Duquesne Family Office LLC (SEC CIK 0001536411), managed by Stanley Druckenmiller, a NEW YORK-based family office managing $2.90 billion across 65 reported positions as of Q1 2026, per its quarterly SEC Form 13F-HR filing. The Q1 2026 13F filing shows 41.7% of Duquesne Family Office's reported portfolio concentrated in Healthcare. Reported 13F market value increased quarter-over-quarter.
By portfolio weight, the top holdings are NATERA (NTRA) at 20.86%, INSMED INCORPORATED (INSM) at 6.43%, and TAIWAN SEMICONDUCTOR MANUFAC (TSM) at 5.70%. Ranked by the share of each peer fund's 13F equity portfolio that overlaps with Duquesne Family Office's disclosed positions as of Q1 2026, the closest peers are Darwin Global Management 13F (85.9%), Massachusetts Institute of Technology 13F (62.9%), and Lansdowne Partners 13F (52.1% overlap).
Most recently, the family office opened a new position in BROADCOM INC (AVGO) (2.06%), fully exited SS FINANCIAL SELECT SECTOR (XLF) , added to ADMA BIOLOGICS INC (ADMA) (+512.85% shares), and trimmed MERCADOLIBRE INC (MELI) (-94.13% shares). View the full Q1 2026 allocation shift and trading report →
- 13F AUM
- $2.9B
- Equity Positions
- 65
- Top-10 Concentration
- 59.2%
- Largest Sector · 41.7%
- Healthcare
- Longest-Held Position · 33 qtrs
- AMZN
- Median Holding Period
- 2 Qtrs
Top 10 Holdings — Duquesne Family Office — Q1 2026
Largest 13F positions disclosed by Duquesne Family Office, ranked by portfolio weight. Full multi-quarter history and the broader institutional holder base for each ticker linked per row.
| # | Issuer | Ticker | Sector | Weight | Position Value | Detail |
|---|---|---|---|---|---|---|
| 1 | NATERA | NTRA | Healthcare | 20.86% | $612.7M | Position History All Holders |
| 2 | INSMED INCORPORATED | INSM | Healthcare | 6.43% | $188.7M | Position History All Holders |
| 3 | TAIWAN SEMICONDUCTOR MANUFAC | TSM | Technology | 5.70% | $167.4M | Position History All Holders |
| 4 | YPF SOCIEDAD ANONIMA | YPF | Energy | 5.09% | $149.6M | Position History All Holders |
| 5 | ISHARES INC | EWZ | Unknown | 4.49% | $131.9M | Position History All Holders |
| 6 | BBB FOODS, INC. | TBBB | Consumer Defensive | 3.74% | $110.0M | Position History All Holders |
| 7 | ALCOA CORP | AA | Basic Materials | 3.37% | $99.1M | Position History All Holders |
| 8 | NEWAMSTERDAM PHARMA COMPANY | NAMS | Healthcare | 3.35% | $98.3M | Position History All Holders |
| 9 | SEA LTD., CLASS A, ADR | SE | Consumer Cyclical | 3.10% | $91.1M | Position History All Holders |
| 10 | STMICROELECTRONICS N V | STM | Technology | 3.07% | $90.3M | Position History All Holders |
View Duquesne Family Office's Q1 2026 allocation shift and trading report →
Portfolio composition
Sectors, concentrations, and a tap-through treemap of every position in the fund's latest 13F.
Quarterly shiftsQ1 2026 vs previous quarter
Top movers in Duquesne Family Office's Form 13F versus the prior reporting quarter. Δ Weight is the change in portfolio weight (percentage points); Δ Shares is the percent change in share count.
| Company | Ticker | Δ Weight | Δ Shares |
|---|---|---|---|
| ADMA BIOLOGICS INC | ADMA | +0.37% | +512.85% |
| YPF SOCIEDAD ANONIMA | YPF | +4.57% | +433.12% |
| STMICROELECTRONICS N V | STM | +2.60% | +237.78% |
| UNITY SOFTWARE INC | U | +0.12% | +80.18% |
| CLEVELAND-CLIFFS INC NEW | CLF | +0.12% | +32.53% |
| Company | Ticker | Δ Weight | Δ Shares |
|---|---|---|---|
| MERCADOLIBRE INC | MELI | -2.09% | -94.13% |
| AMAZON COM INC | AMZN | -3.71% | -93.79% |
| BLOOM ENERGY | BE | -0.90% | -81.59% |
| WABTEC | WAB | -0.71% | -68.38% |
| PURECYCLE TECHNOLOGIES INC | PCT | -0.42% | -66.54% |
| Company | Ticker | New weight |
|---|---|---|
| BROADCOM INCNEW | AVGO | 2.06% |
| GLOBAL X FDSNEW | ARGT | 1.23% |
| CARIS LIFE SCIENCES INCNEW | CAI | 1.15% |
| REVOLUTION MEDICINES INCNEW | RVMD | 1.05% |
| SANDISK CORP/DENEW | SNDK | 0.83% |
| Company | Ticker | Prev weight |
|---|---|---|
| SS FINANCIAL SELECT SECTOR | XLF | 7.13% |
| INVESCO EXCHANGE TRADED FD T | RSP | 5.33% |
| ALPHABET INC | GOOGL | 2.86% |
| COGENT BIOSCIENCES INC | COGT | 1.86% |
| ENTEGRIS | ENTG | 1.69% |
Waterfall analysis
Top movers versus the prior reporting quarter. Left panel bridges market-value change in USD millions; right panel shows share-count change in %.
Holding period analytics
Distribution of holding periods for all 539 stocks the fund has ever held (up to selected quarter):
Which Funds Hold a Similar Portfolio to Duquesne Family Office?
Ranked by percentage of the peer fund's 13F equity portfolio that overlaps with Duquesne Family Office's positions in Q1 2026.
| # | Fund | Shared Positions | Overlap % |
|---|---|---|---|
| 1 | Darwin Global Management 13F | 3 | 85.9% |
| 2 | Massachusetts Institute of Technology 13F | 1 | 62.9% |
| 3 | Lansdowne Partners 13F | 5 | 52.1% |
| 4 | Avala Global 13F | 7 | 42.3% |
| 5 | Situational Awareness 13F | 5 | 42.2% |
How Has Duquesne Family Office's AUM Changed Over Time?
Quarterly 13F-reported AUM for Duquesne Family Office, derived from aggregate reported position market values disclosed to the U.S. SEC.
| Quarter | 13F AUM (USD) | QoQ Change |
|---|---|---|
| Q1 2016 | $1.1B | — |
| Q2 2016 | $871M | -0.23B |
| Q3 2016 | $1.1B | +0.26B |
| Q4 2016 | $1.0B | -0.10B |
| Q1 2017 | $1.5B | +0.50B |
| Q2 2017 | $1.9B | +0.34B |
| Q3 2017 | $2.2B | +0.33B |
| Q4 2017 | $2.0B | -0.21B |
| Q1 2018 | $1.8B | -0.17B |
| Q2 2018 | $2.1B | +0.26B |
| Q3 2018 | $2.1B | +0.03B |
| Q4 2018 | $1.6B | -0.48B |
| Q1 2019 | $3.4B | +1.82B |
| Q2 2019 | $3.4B | -0.09B |
| Q3 2019 | $2.6B | -0.81B |
| Q4 2019 | $3.3B | +0.70B |
| Q1 2020 | $2.5B | -0.80B |
| Q2 2020 | $3.3B | +0.80B |
| Q3 2020 | $3.4B | +0.15B |
| Q4 2020 | $3.7B | +0.29B |
| Q1 2021 | $3.9B | +0.19B |
| Q2 2021 | $3.5B | -0.40B |
| Q3 2021 | $3.1B | -0.41B |
| Q4 2021 | $2.7B | -0.32B |
| Q1 2022 | $2.2B | -0.56B |
| Q2 2022 | $1.4B | -0.81B |
| Q3 2022 | $1.7B | +0.37B |
| Q4 2022 | $2.0B | +0.27B |
| Q1 2023 | $2.3B | +0.30B |
| Q2 2023 | $2.9B | +0.57B |
| Q3 2023 | $2.8B | -0.09B |
| Q4 2023 | $3.1B | +0.32B |
| Q1 2024 | $3.7B | +0.62B |
| Q2 2024 | $2.8B | -0.90B |
| Q3 2024 | $2.9B | +0.03B |
| Q4 2024 | $3.6B | +0.70B |
| Q1 2025 | $3.0B | -0.57B |
| Q2 2025 | $3.9B | +0.93B |
| Q3 2025 | $3.9B | +0.02B |
| Q4 2025 | $4.2B | +0.29B |
| Q1 2026 | $2.9B | -1.28B |
Methodology & FAQ
How We Track Duquesne Family Office Holdings
Our data is systematically aggregated directly from quarterly Form 13F-HR disclosures submitted to the U.S. Securities and Exchange Commission (SEC).
- Who Must File (Reporting Threshold): This dataset includes filings from U.S. institutional investment managers, hedge funds, mutual funds, university endowments, and family offices managing at least $100 million in Section 13(f) securities (including equities, options, convertibles, ETFs, and warrants).
- What is Included (Data Scope): By regulation, 13F filings include long positions in U.S. exchange-listed stocks, ETFs, shares of closed-end investment companies, and convertible debt, as defined in the SEC's official Section 13(f) securities list . For listed options (calls/puts) the reported value is based on the notional value.
- Portfolio Weight Explained (Metric Definition): “Portfolio Weight” shows how much of a fund's total reported 13F portfolio value (excluding listed options) is allocated to a specific position on the reporting date.
- How to Use This Data (Interpretation): Quarter-over-quarter changes in shares and portfolio weight reflect a combination of active trading and market price movements. These are descriptive metrics of fund allocation, not explicit buy or sell signals.
What does Duquesne Family Office's 13F filing disclose about their portfolio?
A Form 13F-HR filed by Duquesne Family Office with the U.S. SEC discloses all long positions in Section 13(f) securities — U.S.-listed equities, ETFs, closed-end funds, and listed put/call options — held at quarter-end with a market value of at least $200,000 or 10,000 or more shares. Pactolio aggregates these filings to surface Duquesne Family Office’s reported portfolio weights, share counts, and quarter-over-quarter allocation shifts in a structured format. The filing represents a point-in-time snapshot of disclosed long-side exposure, not a real-time or complete view of the fund’s total book.
How do you measure conviction in Duquesne Family Office's portfolio allocations?
Conviction is measured by portfolio weight — the percentage of Duquesne Family Office’s total reported 13F market value allocated to a given position — rather than by absolute share count or dollar value alone. A position representing a disproportionately large share of the fund’s disclosed book signals high-conviction allocation, regardless of whether it ranks among the fund’s largest absolute holdings. Tracking how that weight changes quarter-over-quarter separates active reallocation decisions from passive price appreciation drift.
What is excluded from Duquesne Family Office's 13F — short positions, swaps, and derivatives?
SEC Form 13F requires disclosure of long positions only. Specifically excluded are: short interest, total return swaps, credit default swaps, and all OTC derivatives — none of which appear in 13F filings regardless of position size. Listed put and call options must be disclosed but are excluded from portfolio weight calculations on this platform so that reported weights reflect direct equity exposure and remain comparable across filers. This means Duquesne Family Office’s 13F represents the reported long book, which may differ materially from its net economic exposure.
When is Duquesne Family Office's 13F data available, and how large is the reporting lag?
Investment managers must submit Form 13F within 45 calendar days of each quarter-end (the T+45 deadline). Pactolio ingests filings directly from SEC EDGAR as they are published — managers who file early appear in our system before the deadline, while late filers are captured on their actual filing date. The quarter label shown at the top of this page reflects the most recently processed 13F cycle for Duquesne Family Office. The inherent reporting lag means the data always reflects positions as of the prior quarter-end, not current holdings.
Who must file a Form 13F with the SEC, and does Duquesne Family Office qualify?
Under SEC Rule 13f-1, any investment manager — including hedge funds, family offices, registered investment advisers, pension funds, and university endowments — that exercises investment discretion over $100 million or more in Section 13(f) securities at any point during a calendar year must file Form 13F for that year. Duquesne Family Office meets this threshold, which is why its holdings are publicly disclosed and accessible on this platform. The $100 million threshold is evaluated on a rolling basis, meaning new filers can enter and existing filers can exit the disclosure regime as AUM crosses that boundary.