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NAYA CAPITAL MANAGEMENT UK LTD

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13F filer, CIK 1665012, London, United Kingdom

NAYA CAPITAL MANAGEMENT UK LTD reported $1,328,083,218 across 5 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-18.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001172661-26-001276

Period
2025-12-31
Reported value
$1.33B
Holdings
5
Top 10 weight
100%
New
2
Sold out
2

Part of the filer group NAYA CAPITAL MANAGEMENT UK LTD

How groups are built

Largest buys vs the previous quarter

SecurityShares changeApprox. value
FWONKnew+2,113,878$208M
MASInew+1,560,697$203M
HUMadded+461,563$118M
UNHadded+11,341$3.74M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
AMATexited-881,453-$180M
FERGexited-591,318-$133M
WWDreduced-392,520-$119M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q4 2025

Share positions as resolved from 13F-HR 0001172661-26-001276, largest first. % of portfolio is the value over $1,328,083,218, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
HUMHUMANA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: 781,621 shares; 2025Q4: 1,243,184 shares 1,243,184$318M23.98%+461,563Timeline
UNHUNITEDHEALTH GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: 609,376 shares; 2025Q3: 901,391 shares; 2025Q4: 912,732 shares 912,732$301M22.69%+11,341Timeline
WWDWOODWARD INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 577,224 shares; 2024Q4: 1,328,765 shares; 2025Q1: 1,582,095 shares; 2025Q2: 1,395,805 shares; 2025Q3: 1,375,393 shares; 2025Q4: 982,873 shares 982,873$297M22.37%-392,520Timeline
FWONKLIBERTY MEDIA CORP DELQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 2,113,878 shares 2,113,878$208M15.68%newTimeline
MASIMASIMO CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 1,560,697 shares 1,560,697$203M15.28%newTimeline

Sold out in Q4 2025

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
AMATAPPLIED MATLS INC881,453$180Mshares
FERGFERGUSON ENTERPRISES INC591,318$133Mshares

How Q4 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001172661-26-001276 base2026-02-18acceptance time not in the bulk data set