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Starboard Value LP

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13F filer, CIK 1517137, New York, NY

Starboard Value LP reported $5,279,507,877 across 22 holdings for the quarter ended 2025-12-31, in a 13F-HR filed 2026-02-17. Its ten largest share positions make up 69.47% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0000921895-26-000450

Period
2025-12-31
Reported value
$5.28B
Holdings
22
Top 10 weight
69.47%
New
3
Sold out
1

Part of the filer group Starboard Value LP

How groups are built

Largest buys vs the previous quarter

SecurityShares changeApprox. value
CWANnew+9,959,031$240M
FLRnew+5,191,327$206M
KVUEadded+6,377,694$110M
RIOTadded+3,926,576$49.7M
MTCHadded+325,000$10.5M

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
ALITexited-45,865,899-$150M
ADSKreduced-311,267-$92.1M
CRMreduced-301,825-$80M
BDXreduced-278,081-$54M
NWSreduced-1,577,919-$46.8M

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 0000921895-26-000450, largest first. % of portfolio is the value over $5,279,507,876, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
QRVOQORVO INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 8,270,000 shares; 2025Q2: 7,872,867 shares; 2025Q3: 7,510,871 shares; 2025Q4: 7,510,871 shares 7,510,871$635M12.02%02026-10-05, 13D/A: 0 shares, 0% of the class, 13D/A filed 2026-10-06 Timeline
KVUEKENVUE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 21,914,000 shares; 2025Q1: 22,054,000 shares; 2025Q2: 20,929,938 shares; 2025Q3: 20,929,938 shares; 2025Q4: 27,307,632 shares 27,307,632$471M8.92%+6,377,694Timeline
AQNALGONQUIN POWER & UTILITIESQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 62,141,000 shares; 2024Q4: 65,316,000 shares; 2025Q1: 66,433,000 shares; 2025Q2: 63,489,420 shares; 2025Q3: 63,489,420 shares; 2025Q4: 63,489,420 shares 63,489,420$390M7.4%0Timeline
BILLBILL HOLDINGS 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: 7,024,848 shares; 2025Q4: 7,024,848 shares 7,024,848$383M7.26%0Timeline
MTCHMATCH GROUP INC NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 9,556,146 shares; 2024Q4: 14,656,970 shares; 2025Q1: 14,085,901 shares; 2025Q2: 15,311,916 shares; 2025Q3: 11,070,379 shares; 2025Q4: 11,395,379 shares 11,395,379$368M6.97%+325,000Timeline
IJHISHARES TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 3,965,268 shares; 2025Q1: 3,564,875 shares; 2025Q2: 5,250,656 shares; 2025Q3: 5,250,656 shares; 2025Q4: 5,250,656 shares 5,250,656$347M6.56%0Timeline
ADSKAUTODESK INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,852,000 shares; 2024Q4: 1,038,000 shares; 2025Q1: 2,000,000 shares; 2025Q2: 1,467,348 shares; 2025Q3: 1,313,000 shares; 2025Q4: 1,001,733 shares 1,001,733$297M5.62%-311,267Timeline
GENGEN DIGITAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 17,516,604 shares; 2024Q4: 17,516,604 shares; 2025Q1: 17,516,604 shares; 2025Q2: 13,330,505 shares; 2025Q3: 12,171,000 shares; 2025Q4: 10,585,592 shares 10,585,592$288M5.45%-1,585,408Timeline
CRMSALESFORCE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 1,441,848 shares; 2024Q4: 559,264 shares; 2025Q1: 849,679 shares; 2025Q2: 1,252,247 shares; 2025Q3: 1,242,150 shares; 2025Q4: 940,325 shares 940,325$249M4.72%-301,825Timeline
CWANCLEARWATER ANALYTICS HLDGS IQuarterly 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: 9,959,031 shares 9,959,031$240M4.55%newTimeline
ACTGACACIA RESH CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 61,123,595 shares; 2024Q4: 61,123,595 shares; 2025Q1: 61,123,595 shares; 2025Q2: 61,123,595 shares; 2025Q3: 61,123,595 shares; 2025Q4: 61,123,595 shares 61,123,595$229M4.33%0Timeline
HRHEALTHCARE RLTY TRQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 20,183,460 shares; 2025Q1: 20,072,000 shares; 2025Q2: 19,290,672 shares; 2025Q3: 14,490,036 shares; 2025Q4: 12,600,000 shares 12,600,000$214M4.05%-1,890,036Timeline
FLRFLUOR 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: 5,191,327 shares 5,191,327$206M3.9%newTimeline
BDXBECTON DICKINSON & COQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: 1,749,000 shares; 2025Q2: 2,619,490 shares; 2025Q3: 1,207,998 shares; 2025Q4: 929,917 shares 929,917$180M3.42%-278,081Timeline
RIOTRIOT PLATFORMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: 12,704,035 shares; 2025Q1: 12,700,000 shares; 2025Q2: 4,676,900 shares; 2025Q3: 8,818,000 shares; 2025Q4: 12,744,576 shares 12,744,576$161M3.06%+3,926,576Timeline
NWSANEWS CORP NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 7,201,393 shares; 2024Q4: 7,201,393 shares; 2025Q1: 7,201,393 shares; 2025Q2: 6,798,936 shares; 2025Q3: 6,381,716 shares; 2025Q4: 5,895,487 shares 5,895,487$154M2.92%-486,229Timeline
TRIPTRIPADVISOR 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: 8,499,054 shares; 2025Q3: 9,510,484 shares; 2025Q4: 9,644,996 shares 9,644,996$140M2.66%+134,512Timeline
NWSNEWS CORP NEWQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 8,732,000 shares; 2024Q4: 8,482,000 shares; 2025Q1: 7,814,831 shares; 2025Q2: 6,862,525 shares; 2025Q3: 6,017,000 shares; 2025Q4: 4,439,081 shares 4,439,081$132M2.49%-1,577,919Timeline
ROGROGERS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 804,000 shares; 2024Q4: 804,000 shares; 2025Q1: 804,000 shares; 2025Q2: 899,502 shares; 2025Q3: 1,676,502 shares; 2025Q4: 1,203,457 shares 1,203,457$110M2.09%-473,045Timeline
BLMNBLOOMIN BRANDS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 8,441,000 shares; 2024Q4: 8,441,000 shares; 2025Q1: 8,441,000 shares; 2025Q2: 7,980,992 shares; 2025Q3: 7,980,992 shares; 2025Q4: 7,980,992 shares 7,980,992$49.2M0.93%0Timeline
IWMISHARES TRQuarterly 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: 340,000 shares; 2025Q3: 137,000 shares; 2025Q4: 137,000 shares 137,000$33.7M0.64%0Timeline
BIXIBITCOIN INFRASTRUCTURE ACQUIQuarterly 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: 300,000 shares 300,000$2.99M0.06%newTimeline

Sold out in Q4 2025

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

SecurityShares beforeValue beforeType
ALITALIGHT INC45,865,899$150Mshares

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 0000921895-26-000450 base2026-02-17acceptance time not in the bulk data set