Lansdowne Partners
· CIK 0001608485 · latest 13F for 2026-06-30 filed 2026-08-14
Estimated from 13F holdings — long US equities only; follow-the-filing returns are net of an assumed 10 bps per unit of turnover.
About the fund
Lansdowne Partners is a London-based global investment management boutique founded in 1998. Originally a prominent hedge fund, the firm has transitioned to focus on long-only equity strategies for its clients, which include pension funds, endowments, and sovereign wealth funds.
Investment approach
The firm applies an investment approach predicated on rigorous fundamental research and deep engagement with investee companies. This includes liaising with management or research providers on strategy, performance, governance, and risk management. The firm manages a broad range of equity strategies across global markets, supported by a central investment risk team.
History
Founded in 1998 by Paul Ruddock and Steven Heinz, Lansdowne Partners grew to become one of Europe's largest hedge funds, peaking at $21 billion in AUM in 2015. Following a period of performance challenges and strategic shifts, the firm transitioned away from its traditional hedge fund strategies to focus on long-only equity strategies. In 2023, the firm acquired CRUX Asset Management to further expand its long-only capabilities.
Notable positions & campaigns
- UK Equities Fund (2008 crisis)2008 — The firm's UK equities fund profited from short positions in the financial and housing sectors during the 2008 financial crisis.
Profile generated 2026-10-09 from public sources; may be incomplete or out of date.
- Founded by
- Paul Ruddock, Steven Heinz
- Founded
- 1998
- HQ
- London, United Kingdom
- Reported AUM
- $7.8bn (as of 31 March 2025)
- Website
- lansdownepartners.com
Management
- Brian HeyworthChief Executive Officer and Managing Partner
- Andy SimpkinHead of Business Development and Investor Relations
- Dan JordanChief Compliance Officer and General Counsel
- Andrew RyderChief Risk Officer
- Daniel AvigadPortfolio Manager and Head of European Long Only Strategy
- Karen ZacharyChief Operating Officer
- Paul DewinterHead of Trading
Holdings heatmap
Latest 13F (2026-06-30): top 26 positions grouped by sector, sized by weight, coloured by the change in weight since the previous 13F.
Holdings map
Each tile is a position, sized by reported value and coloured by the stock's own price return (red down, green up) — the LiquidRound / finviz-style map.
Copy portfolio vs SPY
Growth of $1 following each filing the trading day after it was filed.
Top holdings
Latest 13F (2026-06-30).
| # | Ticker | Value | Weight |
|---|---|---|---|
| 1 | TSM | $705M | 29.0% |
| 2 | ARM | $380M | 15.6% |
| 3 | DAL | $231M | 9.5% |
| 4 | ADI | $228M | 9.4% |
| 5 | UAL | $211M | 8.7% |
| 6 | BKR | $138M | 5.7% |
| 7 | — | $124M | 5.1% |
| 8 | SLB | $119M | 4.9% |
| 9 | GOLF | $61M | 2.5% |
| 10 | IONQ | $51M | 2.1% |
| 11 | AMZN | $32M | 1.3% |
| 12 | TXN | $28M | 1.1% |
| 13 | TECK | $18M | 0.8% |
| 14 | — | $16M | 0.7% |
| 15 | B | $15M | 0.6% |
| 16 | RAL | $15M | 0.6% |
| 17 | — | $14M | 0.6% |
| 18 | — | $12M | 0.5% |
| 19 | A | $12M | 0.5% |
| 20 | — | $7M | 0.3% |
| 21 | — | $7M | 0.3% |
| 22 | ROK | $5M | 0.2% |
| 23 | AEM | $720,889 | 0.0% |
| 24 | MAR | $469,908 | 0.0% |
| 25 | LAMR | $285,131 | 0.0% |
Sector mix
Top-25 holdings by weight.
Changes this quarter
| Move | Ticker | Prev wt | Now wt |
|---|---|---|---|
| added | ARM | 7.6% | 15.6% |
| trimmed | — | 11.9% | 5.1% |
| added | BKR | 0.1% | 5.7% |
| trimmed | TECK | 5.7% | 0.8% |
| added | TSM | 24.2% | 29.0% |
| trimmed | — | 4.0% | 0.7% |
| trimmed | SLB | 8.1% | 4.9% |
| trimmed | ADI | 11.3% | 9.4% |
| trimmed | — | 2.5% | 0.6% |
| added | IONQ | 1.2% | 2.1% |
| exited | — | 0.5% | 0.0% |
| new | — | 0.0% | 0.5% |
| new | A | 0.0% | 0.5% |
| added | AMZN | 0.9% | 1.3% |
| new | — | 0.0% | 0.3% |
| added | B | 0.8% | 0.6% |
| trimmed | ROK | 0.3% | 0.2% |
| new | LAMR | 0.0% | 0.0% |
| new | OUT | 0.0% | 0.0% |
| trimmed | MAR | 0.0% | 0.0% |
Quarterly copy returns
Each 13F held from the day after filing until the next filing.
| 13F period | Copy | SPY | Alpha | Coverage |
|---|---|---|---|---|
| 2026-06-30 | -1.3% | +0.4% | -1.7% | 92% |
| 2026-03-31 | +9.8% | +4.8% | +5.0% | 75% |
| 2025-12-31 | +11.2% | +8.5% | +2.6% | 78% |
| 2025-09-30 | +24.1% | +2.9% | +21.3% | 70% |
| 2025-06-30 | +2.9% | +3.7% | -0.8% | 65% |
| 2025-03-31 | +16.7% | +9.3% | +7.4% | 42% |
| 2024-12-31 | -8.8% | -2.9% | -5.9% | 54% |
| 2024-09-30 | +5.9% | +3.1% | +2.8% | 49% |
| 2024-06-30 | +19.2% | +7.6% | +11.6% | 65% |
| 2024-03-31 | -5.1% | +4.7% | -9.8% | 67% |
| 2023-12-31 | +10.6% | +5.9% | +4.7% | 62% |
| 2023-09-30 | +20.1% | +12.1% | +8.0% | 61% |
| 2023-06-30 | +4.7% | +1.9% | +2.8% | 72% |
| 2023-03-31 | +9.7% | +8.4% | +1.3% | 68% |
| 2022-12-31 | -3.3% | -0.2% | -3.1% | 86% |
| 2022-09-30 | +11.7% | +4.1% | +7.7% | 72% |
Filing dates
- 2026-08-1413F-HR for 2026-06-30 · $2.4B · 67 rows
- 2026-05-1413F-HR for 2026-03-31 · $1.9B · 65 rows
- 2026-02-1313F-HR for 2025-12-31 · $1.4B · 71 rows
- 2025-11-1913F-HR/A for 2025-09-30 · $1.2B · 54 rows
- 2025-11-1413F-HR for 2025-09-30 · $1.2B · 58 rows
- 2025-08-1413F-HR for 2025-06-30 · $770M · 51 rows
- 2025-05-2013F-HR/A for 2024-06-30 · $1.3B · 62 rows
- 2025-05-2013F-HR/A for 2023-12-31 · $1.4B · 74 rows
- 2025-05-2013F-HR/A for 2024-03-31 · $1.5B · 71 rows
- 2025-05-1513F-HR/A for 2024-12-31 · $1.4B · 57 rows
- 2025-05-1513F-HR/A for 2024-09-30 · $1.3B · 58 rows
- 2025-05-1413F-HR for 2025-03-31 · $706M · 47 rows
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