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Starboard Value

Jeff Smith (CEO) · New York, NY · CIK 1517137 · EDGAR filings ↗

Activist campaigns in mid-cap companies.

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Diff ⇄
$4.52BReported 13F value
22Positions
84.3%Top-10 weight
11.90Effective holdings
20.3%Est. turnover
+2New
−4Exits

Reported 13F portfolio value covers U.S. reportable long positions only — not cash, bonds, shorts or non-U.S. holdings. It is not assets under management.

Reported value by quarter Q2 2024 → Q2 2026
Sector exposure
Technology 25.8% (-0.2pp)
Financial Services 21.3% (+8.5pp)
Consumer Defensive 17.0% (+1.0pp)
Industrials 12.3% (+1.0pp)
Communication Services 9.2% (-3.1pp)
Utilities 7.4% (-0.3pp)
Consumer Cyclical 6.1% (-3.0pp)
Real Estate 0.9% (-1.6pp)

Share of reported common-equity value; (±pp) vs prior quarter.

The portfolio · Q2 2026
#SecurityWeightValueSharesΔ sharesHeld
1 IJH iShares Core S&P Mid-Cap ETF 15.1% $684.57M 8.88M +52.3% ▲ Add 7
2 QRVO Qorvo, Inc. 11.6% $523.39M 5.61M -25.3% ▼ Trim 6
3 KVUE Kenvue Inc. 11.5% $521.85M 27.31M 0.0% Held 7
4 DT Dynatrace, Inc. 8.6% $389.34M 8.87M New New 1
5 AQN Algonquin Power & Utilities… 7.4% $335.13M 57.19M 0.0% Held 9+
6 MTCH Match Group, Inc. 6.5% $295.84M 7.78M -31.8% ▼ Trim 8
7 ACTG Acacia Research Corporation 6.3% $284.84M 61.12M 0.0% Held 9+
8 RIOT Riot Platforms, Inc. 6.1% $276.94M 10.11M -34.9% ▼ Trim 7
9 BILL Bill.com Holdings, Inc. 5.6% $254.05M 7.03M 0.0% ▲ Add 4
10 LW Lamb Weston Holdings, Inc. 5.5% $247.59M 5.73M -6.2% ▼ Trim 2
11 KMX CarMax, Inc. 3.8% $169.59M 3.21M -48.3% ▼ Trim 2
12 FLS Flowserve Corporation 2.4% $106.91M 1.44M New New 1
13 FLR Fluor Corporation 1.8% $83.11M 1.59M -45.0% ▼ Trim 3
14 GPGI GPGI, Inc. 1.8% $79.68M 5.03M 0.0% Held 2
15 TRIP Tripadvisor, Inc. 1.5% $69.88M 5.10M -52.7% ▼ Trim 5
16 NWS News Corporation 1.5% $68.22M 2.43M -6.1% ▼ Trim 9+
17 NWSA News Corporation 1.1% $50.66M 2.04M -63.6% ▼ Trim 9+
18 HR Healthcare Realty Trust… 0.9% $39.05M 1.94M -71.6% ▼ Trim 7
19 BLMN Bloomin' Brands, Inc. 0.8% $38.21M 4.18M -47.6% ▼ Trim 9+
20 BIXI BITCOIN INFRASTRUCTURE ACQUI 0.1% $3.05M 450.00K 0.0% Held 3

Common-stock (SH) positions only; option lines are in the Options tab and are never netted. ✂ = change computed against split-adjusted prior shares. “Held N+” = held every quarter in our window, possibly longer.

Position age
20–1 quarters
62–4 quarters
75–8 quarters
59+ quarters

Consecutive quarters each current position has been reported, within our data window.

Similar managers

Similarity of reported longs only — hedges and non-13F assets are invisible. Methodology

Filing record
Aug 14 2026 13F-HR · period Q2 2026

$4.52B · 22 holdings listed · View original SEC filing ↗

May 15 2026 13F-HR · period Q1 2026

$4.57B · 26 holdings listed · View original SEC filing ↗

Feb 17 2026 13F-HR · period Q4 2025

$5.28B · 22 holdings listed · View original SEC filing ↗

Nov 14 2025 13F-HR · period Q3 2025

$5.31B · 20 holdings listed · View original SEC filing ↗

Aug 14 2025 13F-HR · period Q2 2025

$5.77B · 25 holdings listed · View original SEC filing ↗

May 15 2025 13F-HR · period Q1 2025

$5.50B · 22 holdings listed · View original SEC filing ↗

Feb 14 2025 13F-HR · period Q4 2024

$5.53B · 22 holdings listed · View original SEC filing ↗

Nov 14 2024 13F-HR · period Q3 2024

$4.70B · 20 holdings listed · View original SEC filing ↗

Aug 14 2024 13F-HR · period Q2 2024

$4.30B · 20 holdings listed · View original SEC filing ↗

Provenance: All holdings parsed from this manager's 13F information tables on SEC EDGAR; values as reported, whole USD. Changes compare the latest accepted version of each quarter (amendments incorporated) on split-adjusted share counts. Reporting period: Q2 2026 · latest filing Aug 14, 2026 · Change methodology