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Hedge fund

Lansdowne Partners (UK) LLP

13F for the quarter to June 30, 2026, filed August 14, 2026 · SEC CIK 1608485

Reported value
$2.4bn
99% in companies we cover
Positions we cover
25
Largest TSM 29.0%
Copy, a year
+14.1%
S&P 500 +13.6%
Copy Sharpe ratio
0.56
S&P 500 0.73

How copying its 13F would have done

$10.0k$20.0k$40.0k 2014201620182020202220242026 $50.2k$47.4k
CopyS&P 500 $10,000 copying Lansdowne Partners (UK) LLP's filed holdings in companies we cover from August 15, 2014, buying on the first trading day after each 13F was filed and holding until the next, against the S&P 500 (total return). Marked weekly, log scale. Before costs and taxes; misses trading within each quarter and anything 13F does not show (shorts, cash, bonds, non-US holdings).

Biggest drop −52.5% (S&P 500 −31.8%); beta 1.32; alpha −1.4% a year (t = −0.36); last 12 months +28.8% against +12.1%.

Reported value by quarter

Lansdowne Partners (UK) LLP: 13F reported value Total value of all positions in each quarter's 13F, as filed (values before 2023 were filed in thousands of dollars and are converted).
$0 $200B $400B $600B Reported value, 2014-06-30: $10.6B Reported value, 2014-09-30: $11.1B Reported value, 2014-12-31: $11.1B Reported value, 2015-03-31: $11.1B Reported value, 2015-06-30: $11.7B Reported value, 2015-09-30: $11.8B Reported value, 2015-12-31: $14.5B Reported value, 2016-03-31: $12.7B Reported value, 2016-06-30: $10.7B Reported value, 2016-09-30: $11.5B Reported value, 2016-12-31: $11.2B Reported value, 2017-03-31: $11.5B Reported value, 2017-06-30: $11.5B Reported value, 2017-09-30: $9.5B Reported value, 2017-12-31: $10.7B Reported value, 2018-03-31: $9.4B Reported value, 2018-06-30: $9.7B Reported value, 2018-09-30: $8.6B Reported value, 2018-12-31: $5.4B Reported value, 2019-03-31: $4.1B Reported value, 2019-06-30: $3.6B Reported value, 2019-09-30: $3.1B Reported value, 2019-12-31: $2.8B Reported value, 2020-03-31: $1.7B Reported value, 2020-06-30: $2.3B Reported value, 2020-09-30: $1.9B Reported value, 2020-12-31: $2.3B Reported value, 2021-03-31: $2.2B Reported value, 2021-06-30: $2.3B Reported value, 2021-09-30: $2B Reported value, 2021-12-31: $1.6B Reported value, 2022-03-31: $1.2B Reported value, 2022-06-30: $708.9M Reported value, 2022-09-30: $464.7M Reported value, 2022-12-31: $482.7B Reported value, 2023-03-31: $647.9M Reported value, 2023-06-30: $902.2M Reported value, 2023-09-30: $1.1B Reported value, 2023-12-31: $1.4B Reported value, 2024-03-31: $1.5B Reported value, 2024-06-30: $1.3B Reported value, 2024-09-30: $1.3B Reported value, 2024-12-31: $1.4B Reported value, 2025-03-31: $706.1M Reported value, 2025-06-30: $769.9M Reported value, 2025-09-30: $1.2B Reported value, 2025-12-31: $1.4B Reported value, 2026-03-31: $1.9B Reported value, 2026-06-30: $2.4B 2014-06-30 2016-12-31 2019-06-30 2021-12-31 2024-06-30 2026-06-30 $2.4B
View chart data
Period Reported value
2014-06-30 $10.6B
2014-09-30 $11.1B
2014-12-31 $11.1B
2015-03-31 $11.1B
2015-06-30 $11.7B
2015-09-30 $11.8B
2015-12-31 $14.5B
2016-03-31 $12.7B
2016-06-30 $10.7B
2016-09-30 $11.5B
2016-12-31 $11.2B
2017-03-31 $11.5B
2017-06-30 $11.5B
2017-09-30 $9.5B
2017-12-31 $10.7B
2018-03-31 $9.4B
2018-06-30 $9.7B
2018-09-30 $8.6B
2018-12-31 $5.4B
2019-03-31 $4.1B
2019-06-30 $3.6B
2019-09-30 $3.1B
2019-12-31 $2.8B
2020-03-31 $1.7B
2020-06-30 $2.3B
2020-09-30 $1.9B
2020-12-31 $2.3B
2021-03-31 $2.2B
2021-06-30 $2.3B
2021-09-30 $2B
2021-12-31 $1.6B
2022-03-31 $1.2B
2022-06-30 $708.9M
2022-09-30 $464.7M
2022-12-31 $482.7B
2023-03-31 $647.9M
2023-06-30 $902.2M
2023-09-30 $1.1B
2023-12-31 $1.4B
2024-03-31 $1.5B
2024-06-30 $1.3B
2024-09-30 $1.3B
2024-12-31 $1.4B
2025-03-31 $706.1M
2025-06-30 $769.9M
2025-09-30 $1.2B
2025-12-31 $1.4B
2026-03-31 $1.9B
2026-06-30 $2.4B

Holdings and moves

CompanyShare of portfolioValueSharesChange in shares
TSMTaiwan Semiconductor Manufacturing Co LTD29.00%$704.8m1.48M+10.5% Added
ARMARM Holdings PLC15.64%$380.3m1.07M+14.6% Added
DALDelta Air Lines9.52%$231.5m2.47M−0.6% Reduced
ADIAnalog Devices9.39%$228.2m574.5K−13.5% Reduced
UALUnited Airlines Holdings8.67%$210.7m1.55M+1.2% Added
BKRBaker Hughes5.70%$138.4m2.49M+6087.5% Added
LINLinde plc5.09%$123.8m238.6K−46.9% Reduced
SLBSchlumberger4.90%$119.0m2.56M−13.4% Reduced
GOLFAcushnet Holdings Corp.2.50%$60.9m513.6K−1.8% Reduced
IONQIonQ, Inc.2.12%$51.5m966.4K+21.5% Added
AMZNAmazon1.30%$31.7m133.0K+70.7% Added
TXNTexas Instruments1.14%$27.6m92.6K+0.6% Added
SWSmurfit Westrock0.66%$16.1m347.8K−81.4% Reduced
BBarrick Mining Corp0.62%$15.1m411.3K+19.8% Added
RALRalliant Corp0.60%$14.6m197.8K+1.4% Added
ETNEaton Corporation0.59%$14.4m33.9K−73.9% Reduced
NVTnVent Electric plc0.50%$12.1m71.1KNew
AAgilent Technologies0.48%$11.8m88.6KNew
MDTMedtronic0.29%$6.9m88.8K0.0%
STSensata Technologies Holding plc0.28%$6.7m140.3KNew
ROKRockwell Automation0.19%$4.5m9.1K−34.9% Reduced
AEMAgnico Eagle Mines LTD0.03%$720,8894.6K0.0%
MARMarriott International0.02%$469,9081.3K−10.4% Reduced
LAMRLamar Advertising Co0.01%$285,1311.8KNew
OUTOutfront Media Inc.0.01%$281,1148.6KNew
CompanyBought (value)Shares
BKRBaker Hughes$136.2m2.45M
TSMTaiwan Semiconductor Manufacturing Co LTD$66.9m140.1K
ARMARM Holdings PLC$48.6m137.0K
AMZNAmazon$13.1m55.1K
NVTnVent Electric plc$12.1m71.1K
AAgilent Technologies$11.8m88.6K
IONQIonQ, Inc.$9.1m170.8K
STSensata Technologies Holding plc$6.7m140.3K
BBarrick Mining Corp$2.5m67.9K
UALUnited Airlines Holdings$2.5m18.3K
LAMRLamar Advertising Co$285,1311.8K
OUTOutfront Media Inc.$281,1148.6K
RALRalliant Corp$204,3972.8K
TXNTexas Instruments$173,477582

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanySold (value)Shares
LINLinde plc−$109.3m−210.6K
SWSmurfit Westrock−$70.4m−1.52M
ETNEaton Corporation−$40.8m−95.8K
ADIAnalog Devices−$35.6m−89.5K
SLBSchlumberger−$18.5m−397.6K
ALCAlcon Inc−$10.1m−136.5K
ROKRockwell Automation−$2.4m−4.9K
DALDelta Air Lines−$1.4m−14.6K
GOLFAcushnet Holdings Corp.−$1.1m−9.4K
MARMarriott International−$54,477−147

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanyValue last quarterShares
ALCAlcon Inc$10.1m136.5K
  • Technology58.3%
  • Industrials19.9%
  • Energy10.7%
  • Materials6.5%
  • Consumer Discretionary3.9%
  • Health Care0.8%
  • Real Estate0.0%

Share of the value held in companies we cover, by sector.

PeriodCopy, a yearS&P 500SharpeS&P 500Biggest dropBeta
Whole backtestAugust 15, 2014 to November 2, 2026+14.1%+13.6%0.560.73−52.5%1.32
2018 onwardsJanuary 5, 2018 to November 2, 2026+12.3%+13.9%0.450.66−52.5%1.35
Last three yearsNovember 3, 2023 to November 2, 2026+31.0%+21.8%1.151.16−21.6%1.17
Last yearNovember 7, 2025 to November 2, 2026+31.5%+14.2%1.050.84−15.1%1.31

From SEC Form 13F data sets. A 13F lists long positions in US-listed shares at the quarter's end, filed up to 45 days later; it does not show shorts, cash, bonds, non-US holdings or trades within the quarter. Positions in companies outside our coverage are not listed here. Research, not investment advice.