Starboard Value LP

Activist ★Highest signal CIK 1517137
League rank
#3
in Activist · #1398 overall
Long book
$4.57B
Q1 2026
Positions
23
Top-10 weight
75%
concentration
Last quarter
+15.4%
SPY +14.8%
Turnover
27%
of book per quarter

Strategy in plain words

auto-generated from filings

Starboard Value LP is an activist investor that takes positions to influence management, running a $4.57B US long book across 23 positions.

The portfolio is concentrated: the top 10 names carry 75% of the portfolio. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: QORVO INC, KENVUE INC, ISHARES CORE S&P MIDCAP ETF, ALGONQUIN POWER & UTILITIES, MATCH GROUP INC.

Over the last 9 quarters its long book ran on average 2.8pp per quarter behind the S&P 500, beating the index in 2 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
-0.0%
Q2 2024
+2.6%
Q3 2024
+3.9%
Q4 2024
-7.2%
Q1 2025
+5.2%
Q2 2025
+2.8%
Q3 2025
-1.7%
Q4 2025
-6.2%
Q1 2026
+15.4%

Sector allocation

Technology
37%
Other
17%
Financials
15%
Utilities
9%
Consumer discretionary
8%
Consumer staples
7%
Industrials
3%
Healthcare
3%

Long book by quarter

$4.81B
Q1 2024
$4.29B
Q2 2024
$4.70B
Q3 2024
$5.52B
Q4 2024
$5.49B
Q1 2025
$5.77B
Q2 2025
$5.31B
Q3 2025
$5.28B
Q4 2025
$4.57B
Q1 2026

What does Starboard Value own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
QRVO QORVO INCTechnology7.5M$581.3M12.7%Held
KVUE KENVUE INCOther27.3M$470.8M10.3%Held
AQN ALGONQUIN POWER & UTILITIESUtilities57.2M$351.1M7.7%-9.9%
MTCH MATCH GROUP INCTechnology11.4M$350.0M7.7%Held
ACTG ACACIA RESEARCH CORPFinancials61.1M$294.0M6.4%Held
BILL BILL HOLDINGS INCTechnology7.0M$269.1M5.9%Held
LW LAMB WESTON HOLDINGS INCConsumer staples6.1M$258.4M5.7%New
KMX CARMAX INCConsumer discretionary6.2M$257.9M5.6%New
RIOT RIOT PLATFORMS INCFinancials15.5M$192.1M4.2%+22.0%
GEN GEN DIGITAL INCTechnology7.8M$147.0M3.2%-26.2%
NWSA NEWS CORP - CLASS AOther5.6M$139.7M3.1%-4.9%
FLR FLUOR CORPIndustrials2.9M$134.6M2.9%-44.4%
TRIP TRIPADVISOR INCTechnology10.8M$114.9M2.5%+11.7%
BDX BECTON DICKINSON AND COHealthcare636.5K$100.1M2.2%-31.6%
GPGI GPGI INCFinancials5.0M$86.0M1.9%New
NWS NEWS CORP - CLASS BOther2.6M$73.8M1.6%-41.7%
ROG ROGERS CORPMaterials584.3K$62.7M1.4%-51.4%
BLMN BLOOMIN' BRANDS INCConsumer discretionary8.0M$43.1M0.9%Held
BIXI BITCOIN INFRASTRUCTURE-CL AFinancials300.0K$3.0M0.1%Held

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRMay 15, 202626$4.57B canonicalSEC ↗
Q4 202513F-HRFeb 17, 202622$5.28B canonicalSEC ↗
Q3 202513F-HRNov 14, 202520$5.31B canonicalSEC ↗
Q2 202513F-HRAug 14, 202525$5.77B canonicalSEC ↗
Q1 202513F-HRMay 15, 202522$5.50B canonicalSEC ↗
Q4 202413F-HRFeb 14, 202522$5.53B canonicalSEC ↗
Q3 202413F-HRNov 14, 202420$4.70B canonicalSEC ↗
Q2 202413F-HRAug 14, 202420$4.30B canonicalSEC ↗
Q1 202413F-HRMay 15, 202423$4.84B canonicalSEC ↗