DOSSIER · 13F-HR · Q1 2026

LANSDOWNE PARTNERS (UK) LLP

$1.9B in tracked AUM across 65 positions as of Q1 2026.

LP
CIK 0001608485 · last filed Mar 31, 2026
Total AUM
$1.9B
as of Q1 2026
Holdings
65
positions
Whale Score
63
63
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026
Comprehensive Analysis of LANSDOWNE PARTNERS (UK) LLP 13F Filing
1. Portfolio Overview

The filing for the period ending September 30, 2025, reveals a dramatic transformation in the Lansdowne Partners (UK) LLP portfolio. The total assets under management (AUM) plummeted by 53.8%, decreasing from approximately $769.94 million to $355.90 million. This reduction is not solely attributable to market performance but is primarily the result of a massive turnover in the fund's composit...

2. Key Holdings

The portfolio is dominated by three core positions, which serve as the pillars of the current investment strategy:

  • Linde PLC (48.65%): As the largest holding, Linde represents nearly half of the entire portfolio value at $173.16 million. The firm increased its stake by 18.1% (adding $28.35 million), signaling strong conviction in the industrial gas giant. This heavy weighting suggests the manager views Linde as a defensive, high-quality compounder capable of weathering market volatility.
  • CRH PLC (21.83%): The second-largest holding is CRH, valued at $77.71 million. This position saw the largest relative increase in value among the top holdings, with the firm adding $29.50 million (a 23.4% increase). This aggressive accumulation indicates a bullish outlook on the infrastructure and building materials sector.
  • Smurfit Westrock PLC (15.38%): Maintaining a position in the packaging sector, the firm holds $54.75 million in Smurfit Westrock. While this was the largest position reduced in percentage terms (-1.4%), the sale was minimal ($1.52 million), implying the firm remains generally supportive of the position but perhaps trimmed for liquidity or rebalancing.
  • IONQ Inc (10.83%): Standing out as the only significant technology holding, IONQ accounts for $38.55 million. The firm dramatically increased this position by 286.1% (adding $17.00 million), making it a notable high-beta, growth-oriented play within an otherwise value-heavy portfolio.

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
TSM
TAIWAN SEMICONDUCTOR MANUFAC
$451M1.3M24.2%
02
G54950103
LINDE PLC
$223M449K11.9%
03
ADI
ANALOG DEVICES INC
$211M664K11.3%
04
DAL
DELTA AIR LINES INC
$165M2.5M8.9%
05
SLB
SLB LIMITED
$152M3.0M8.1%
06
ARM
ARM HOLDINGS PLC
$142M936K7.6%
07
UAL
UNITED AIRLS HLDGS INC
$141M1.5M7.6%
08
TECK
TECK RESOURCES LTD
$106M2.0M5.7%
09
G8267P108
SMURFIT WESTROCK PLC
$75M1.9M4.0%
10
GOLF
ACUSHNET HLDGS CORP
$49M523K2.6%

Filing history

2026Q1Mar 31
$1.9B 36.9%
65 positionsView →
2025Q4Dec 31
$1.4B 13.3%
71 positionsView →
2025Q3Sep 30
$1.2B 56.4%
58 positionsView →
2025Q2Jun 30
$770M 9.0%
51 positionsLocked
2025Q1Mar 31
$706M 48.7%
47 positionsLocked
2024Q4Dec 31
$1.4B 7.7%
58 positionsLocked
2024Q3Sep 30
$1.3B 1.6%
61 positionsLocked
2024Q2Jun 30
$1.3B 17.4%
63 positionsLocked
2024Q1Mar 31
$1.5B 13.8%
73 positionsLocked
2023Q4Dec 31
$1.3B 22.5%
78 positionsLocked
2023Q3Sep 30
$1.1B 21.2%
81 positionsLocked
2023Q2Jun 30
$902M 39.3%
55 positionsLocked
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