What Starboard Value LP changed, 2013 to 2026
53 quarterly 13F filings, from Q2 2013 to Q2 2026, each read from the filing itself. A quarter is compared only with the quarter before it, so a quarter with no filing is a gap in the record, not a sale.
Reported book
$4.5bn
$1.4bn at Q2 2013
Positions
22
25 at Q2 2013
Top ten weight
84%
72% at Q2 2013
Typical quarterly turnover
about 12%
Estimated from share changes
- Q2 2013: $1.4bn
- Q3 2013: $1.2bn
- Q4 2013: $2.0bn
- Q1 2014: $1.8bn
- Q2 2014: $2.6bn
- Q3 2014: $2.9bn
- Q4 2014: $4.4bn
- Q1 2015: $4.8bn
- Q2 2015: $4.4bn
- Q3 2015: $4.5bn
- Q4 2015: $3.7bn
- Q1 2016: $2.8bn
- Q2 2016: $2.8bn
- Q3 2016: $3.7bn
- Q4 2016: $3.4bn
- Q1 2017: $3.3bn
- Q2 2017: $3.4bn
- Q3 2017: $3.7bn
- Q4 2017: $4.1bn
- Q1 2018: $4.6bn
- Q2 2018: $4.0bn
- Q3 2018: $3.9bn
- Q4 2018: $3.2bn
- Q1 2019: $4.1bn
- Q2 2019: $3.3bn
- Q3 2019: $3.0bn
- Q4 2019: $3.5bn
- Q1 2020: $2.5bn
- Q2 2020: $2.8bn
- Q3 2020: $3.4bn
- Q4 2020: $3.9bn
- Q1 2021: $4.7bn
- Q2 2021: $5.1bn
- Q3 2021: $5.5bn
- Q4 2021: $7.2bn
- Q1 2022: $7.5bn
- Q2 2022: $5.5bn
- Q3 2022: $4.5bn
- Q4 2022: $5.2bn
- Q1 2023: $5.0bn
- Q2 2023: $4.6bn
- Q3 2023: $3.9bn
- Q4 2023: $4.8bn
- Q1 2024: $4.8bn
- Q2 2024: $4.3bn
- Q3 2024: $4.7bn
- Q4 2024: $5.5bn
- Q1 2025: $5.5bn
- Q2 2025: $5.8bn
- Q3 2025: $5.3bn
- Q4 2025: $5.3bn
- Q1 2026: $4.6bn
- Q2 2026: $4.5bn
- Q2 2013: 72%
- Q3 2013: 76%
- Q4 2013: 80%
- Q1 2014: 78%
- Q2 2014: 80%
- Q3 2014: 84%
- Q4 2014: 83%
- Q1 2015: 85%
- Q2 2015: 81%
- Q3 2015: 87%
- Q4 2015: 86%
- Q1 2016: 91%
- Q2 2016: 86%
- Q3 2016: 84%
- Q4 2016: 86%
- Q1 2017: 89%
- Q2 2017: 90%
- Q3 2017: 86%
- Q4 2017: 87%
- Q1 2018: 93%
- Q2 2018: 94%
- Q3 2018: 94%
- Q4 2018: 94%
- Q1 2019: 83%
- Q2 2019: 91%
- Q3 2019: 94%
- Q4 2019: 94%
- Q1 2020: 86%
- Q2 2020: 83%
- Q3 2020: 78%
- Q4 2020: 81%
- Q1 2021: 75%
- Q2 2021: 70%
- Q3 2021: 65%
- Q4 2021: 64%
- Q1 2022: 60%
- Q2 2022: 65%
- Q3 2022: 72%
- Q4 2022: 74%
- Q1 2023: 79%
- Q2 2023: 82%
- Q3 2023: 87%
- Q4 2023: 81%
- Q1 2024: 79%
- Q2 2024: 80%
- Q3 2024: 80%
- Q4 2024: 71%
- Q1 2025: 76%
- Q2 2025: 73%
- Q3 2025: 71%
- Q4 2025: 69%
- Q1 2026: 75%
- Q2 2026: 84%
The positions that defined it
Every position that was ever among the 25 largest: when it first appeared, when it was largest, and where it stands in Q2 2026. The line is its reported value each quarter.
| Position | Value over time | First listed | Largest | Q2 2026 |
|---|---|---|---|---|
| iShares Core S&P Mid Cap ETF(IJH) | Q4 2024 | $685mQ2 2026 | $685m | |
| Qorvo Inc(QRVO) | Q1 2025 | $684mQ3 2025 | $523m | |
| Kenvue Inc(KVUE) | Q4 2024 | $529mQ1 2025 | $522m | |
| Dynatrace Inc(DT) | Q2 2026 | $389mQ2 2026 | $389m | |
| Algonquin PWR Utils Corp(AQN) | Q2 2023 | $393mQ1 2024 | $335m | |
| Match Group Inc New(MTCH) | Q3 2024 | $479mQ4 2024 | $296m | |
| Acacia Resh Corp(ACTG)Acacia TCH Common | Q4 2022 | $326mQ1 2024 | $285m | |
| Riot Platforms Inc(RIOT) | Q4 2024 | $277mQ2 2026 | $277m | |
| Bill Holdings Inc(BILL) | Q3 2025 | $383mQ4 2025 | $254m | |
| Lamb Weston HLDGS Inc(LW) | Q1 2026 | $258mQ1 2026 | $248m | |
| Carmax Inc(KMX) | Q1 2026 | $258mQ1 2026 | $170m | |
| Flowserve Corp(FLS) | Q2 2026 | $107mQ2 2026 | $107m | |
| iShares Russell 2000 ETF(IWM) | Q4 2013 | $1.4bnQ3 2015 | Soldlast listed Q1 2026 | |
| Symantec Corp | Q3 2018 | $1.0bnQ3 2019 | Soldlast listed Q3 2019 | |
| Perrigo Co PLC(PRGO) | Q3 2016 | $840mQ4 2017 | Soldlast listed Q3 2019 | |
| Darden Restaurants Inc(DRI) | Q4 2013 | $827mQ2 2015 | Soldlast listed Q2 2016 | |
| Spdr S&P 500 Etf Trust(SPY) | Q4 2019 | $822mQ4 2019 | Soldlast listed Q3 2020 | |
| Altaba Inc | Q2 2017 | $815mQ3 2017 | Soldlast listed Q1 2019 | |
| Godaddy Inc(GDDY)Class A | Q4 2021 | $798mQ4 2023 | Soldlast listed Q4 2024 | |
| Marvell Technology Group LTD | Q1 2016 | $724mQ4 2017 | Soldlast listed Q2 2019 |
Quarter by quarter
Q4 2016: $3.4bn across 23 positions
Against Q3 2016: 6 new, 3 added to, 7 trimmed, 6 sold out, across all 23 positions.
Turnover about 13% of the book, estimated from share changes at quarter-end prices.
Largest additions
- Perrigo Co PLC (PRGO)+$247m
- Baxter Intl Inc (BAX)+$19m
- iShares Russell 2000 ETF (IWM)+-$419m
Largest reductions
- Westrock Co-$110m
- Depomed Inc-$55m
- Insperity Inc (NSP)-$55m
- iShares RUS 2000 VAL ETF (IWN)-$52m
- Hewlett Packard Enterprise C (HPE)-$29m
- Quantum Corp-$7.7m
- Pinnacle Entmt Inc New$3.0m
Opened
- Rockwell Collins Inc$102m
- Cognizant Technology Solutio (CTSH)$83m
- Tribune Media Co$70m
- Viavi Solutions Inc (VIAV)$29m
- Cornerstone Ondemand Inc$13m
- Take-two Interactive Softwar (TTWO)$7.1m
Sold out
- Infoblox Incwas $74m
- Cabelas Incwas $44m
- Tronc Incwas $16m
- Curtiss Wright Corp (CW)was $16m
- Fiesta Restaurant Group Incwas $14m
- Imperva Incwas $8.6m
Largest positions, Q4 2016
| Position | Value | Weight | On the quarter |
|---|---|---|---|
| Perrigo Co PLC (PRGO) | $791m | 23.3% | Added |
| Advance Auto Parts Inc (AAP) | $478m | 14.1% | Held |
| Yahoo Inc | $476m | 14.0% | Held |
| Marvell Technology Group LTD | $468m | 13.8% | Held |
| Brinks Co (BCO) | $189m | 5.6% | Held |
| Baxter Intl Inc (BAX) | $109m | 3.2% | Added |
| Macys Inc (M) | $108m | 3.2% | Held |
| Stewart Information SVCS Cor (STC) | $107m | 3.1% | Held |
| Rockwell Collins Inc | $102m | 3.0% | New |
| Hewlett Packard Enterprise C (HPE) | $96m | 2.8% | Trimmed |
| Depomed Inc | $95m | 2.8% | Trimmed |
| Cognizant Technology Solutio (CTSH) | $83m | 2.4% | New |
| Tribune Media Co | $70m | 2.1% | New |
| Insperity Inc (NSP) | $54m | 1.6% | Trimmed |
| Westrock Co | $36m | 1.0% | Trimmed |
| Quantum Corp | $34m | 1.0% | Held |
| Viavi Solutions Inc (VIAV) | $29m | 0.8% | New |
| Pinnacle Entmt Inc New | $22m | 0.6% | Trimmed |
| iShares Russell 2000 ETF (IWM) | $17m | 0.5% | Added |
| Cornerstone Ondemand Inc | $13m | 0.4% | New |
| Take-two Interactive Softwar (TTWO) | $7.1m | 0.2% | New |
| Quantum Corp | $6.3m | 0.2% | Trimmed |
| iShares RUS 2000 VAL ETF (IWN) | $6.1m | 0.2% | Trimmed |
The books most like this one
Among the managers whose filings are on file, at Q2 2026. Overlap is the share of the two books that is the same: for every stock both list, the smaller of its two weights, added up. Two books can overlap because both own the largest companies; it says nothing about whether the managers agree.
| Manager | Overlap | Stocks in both | Overlap over time | |
|---|---|---|---|---|
| Jana Partners | 5.5% | 1 | Compare | |
| Greenlight Capital | 2.7% | 2 | Compare | |
| Durable Capital Partners LP | 2.1% | 1 | Compare | |
| Sachem Head Capital Management LP | 1.6% | 1 | Compare | |
| Southeastern Asset Management Inc | 1.5% | 1 | Compare | |
| Caxton Associates LLP | at least 1.4% | 7 | Compare | |
| D1 Capital Partners LP | 1.1% | 1 | Compare | |
| Moore Capital Management LP | at least 1.0% | 3 | Compare |
“At least” where either manager has more positions than are read each quarter: a stock both hold below that range is not counted.
The filings behind it
Every quarter above is one 13F holdings report, with any amendment the filer made to it applied in the order it was filed. Where the reporting entity changed, each quarter keeps the filer that actually reported it.
| Quarter | Filer | Book | Amended | Filing |
|---|---|---|---|---|
| Q2 2026 | Starboard Value LP | $4.5bn | 13F-HR | |
| Q1 2026 | Starboard Value LP | $4.6bn | 13F-HR | |
| Q4 2025 | Starboard Value LP | $5.3bn | 13F-HR | |
| Q3 2025 | Starboard Value LP | $5.3bn | 13F-HR | |
| Q2 2025 | Starboard Value LP | $5.8bn | 13F-HR | |
| Q1 2025 | Starboard Value LP | $5.5bn | 13F-HR | |
| Q4 2024 | Starboard Value LP | $5.5bn | 13F-HR | |
| Q3 2024 | Starboard Value LP | $4.7bn | 13F-HR | |
| Q2 2024 | Starboard Value LP | $4.3bn | 13F-HR | |
| Q1 2024 | Starboard Value LP | $4.8bn | 13F-HR | |
| Q4 2023 | Starboard Value LP | $4.8bn | 13F-HR | |
| Q3 2023 | Starboard Value LP | $3.9bn | 13F-HR | |
| Q2 2023 | Starboard Value LP | $4.6bn | 13F-HR | |
| Q1 2023 | Starboard Value LP | $5.0bn | 1 | 13F-HR |
| Q4 2022 | Starboard Value LP | $5.2bn | 13F-HR | |
| Q3 2022 | Starboard Value LP | $4.5bn | 13F-HR | |
| Q2 2022 | Starboard Value LP | $5.5bn | 13F-HR | |
| Q1 2022 | Starboard Value LP | $7.5bn | 13F-HR | |
| Q4 2021 | Starboard Value LP | $7.2bn | 13F-HR | |
| Q3 2021 | Starboard Value LP | $5.5bn | 13F-HR | |
| Q2 2021 | Starboard Value LP | $5.1bn | 13F-HR | |
| Q1 2021 | Starboard Value LP | $4.7bn | 13F-HR | |
| Q4 2020 | Starboard Value LP | $3.9bn | 13F-HR | |
| Q3 2020 | Starboard Value LP | $3.4bn | 13F-HR | |
| Q2 2020 | Starboard Value LP | $2.8bn | 13F-HR | |
| Q1 2020 | Starboard Value LP | $2.5bn | 13F-HR | |
| Q4 2019 | Starboard Value LP | $3.5bn | 13F-HR | |
| Q3 2019 | Starboard Value LP | $3.0bn | 13F-HR | |
| Q2 2019 | Starboard Value LP | $3.3bn | 13F-HR | |
| Q1 2019 | Starboard Value LP | $4.1bn | 13F-HR | |
| Q4 2018 | Starboard Value LP | $3.2bn | 13F-HR | |
| Q3 2018 | Starboard Value LP | $3.9bn | 13F-HR | |
| Q2 2018 | Starboard Value LP | $4.0bn | 13F-HR | |
| Q1 2018 | Starboard Value LP | $4.6bn | 13F-HR | |
| Q4 2017 | Starboard Value LP | $4.1bn | 13F-HR | |
| Q3 2017 | Starboard Value LP | $3.7bn | 13F-HR | |
| Q2 2017 | Starboard Value LP | $3.4bn | 13F-HR | |
| Q1 2017 | Starboard Value LP | $3.3bn | 13F-HR | |
| Q4 2016 | Starboard Value LP | $3.4bn | 13F-HR | |
| Q3 2016 | Starboard Value LP | $3.7bn | 13F-HR | |
| Q2 2016 | Starboard Value LP | $2.8bn | 13F-HR | |
| Q1 2016 | Starboard Value LP | $2.8bn | 13F-HR | |
| Q4 2015 | Starboard Value LP | $3.7bn | 13F-HR | |
| Q3 2015 | Starboard Value LP | $4.5bn | 13F-HR | |
| Q2 2015 | Starboard Value LP | $4.4bn | 13F-HR | |
| Q1 2015 | Starboard Value LP | $4.8bn | 13F-HR | |
| Q4 2014 | Starboard Value LP | $4.4bn | 13F-HR | |
| Q3 2014 | Starboard Value LP | $2.9bn | 1 | 13F-HR |
| Q2 2014 | Starboard Value LP | $2.6bn | 13F-HR | |
| Q1 2014 | Starboard Value LP | $1.8bn | 13F-HR | |
| Q4 2013 | Starboard Value LP | $2.0bn | 1 | 13F-HR |
| Q3 2013 | Starboard Value LP | $1.2bn | 1 | 13F-HR |
| Q2 2013 | Starboard Value LP | $1.4bn | 13F-HR |
Reading this record
A 13F lists US-listed long equity and options at the quarter end, filed up to 45 days later. It shows what was held, not when it was bought or at what price, and nothing short. Where a quarter lists only the largest positions, a name missing from it may still be held below that range; the counts of what was opened and sold always cover the whole filing.
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