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Hedge fund

Senator Investment Group LP

13F for the quarter to June 30, 2026, filed August 12, 2026 · SEC CIK 1443689

Reported value
$2.7bn
85% in companies we cover
Positions we cover
50
Largest DPC 9.0%
Copy, a year
+11.7%
S&P 500 +14.1%
Copy Sharpe ratio
0.58
S&P 500 0.78

How copying its 13F would have done

$10.0k$20.0k$40.0k 2013201520172019202120232025 $57.0k$43.2k
CopyS&P 500 $10,000 copying Senator Investment Group LP's filed holdings in companies we cover from August 16, 2013, buying on the first trading day after each 13F was filed and holding until the next, against the S&P 500 (total return). Marked weekly, log scale. Before costs and taxes; misses trading within each quarter and anything 13F does not show (shorts, cash, bonds, non-US holdings).

Biggest drop −35.7% (S&P 500 −31.8%); beta 1.08; alpha −2.5% a year (t = −1.16); last 12 months −3.1% against +12.1%.

Reported value by quarter

Senator Investment Group LP: 13F reported value Total value of all positions in each quarter's 13F, as filed (values before 2023 were filed in thousands of dollars and are converted).
$0 $500B $1T $1.5T Reported value, 2013-06-30: $5.2B Reported value, 2013-09-30: $6.9B Reported value, 2013-12-31: $8.7B Reported value, 2014-03-31: $8.4B Reported value, 2014-06-30: $9.5B Reported value, 2014-09-30: $9.6B Reported value, 2014-12-31: $9.4B Reported value, 2015-03-31: $10.4B Reported value, 2015-06-30: $11.5B Reported value, 2015-09-30: $8.2B Reported value, 2015-12-31: $8B Reported value, 2016-03-31: $7.6B Reported value, 2016-06-30: $6.2B Reported value, 2016-09-30: $7.6B Reported value, 2016-12-31: $6.6B Reported value, 2017-03-31: $8.1B Reported value, 2017-06-30: $8.9B Reported value, 2017-09-30: $7.5B Reported value, 2017-12-31: $9.3B Reported value, 2018-03-31: $8.4B Reported value, 2018-06-30: $10.1B Reported value, 2018-09-30: $7.8B Reported value, 2018-12-31: $3.6B Reported value, 2019-03-31: $4.4B Reported value, 2019-06-30: $5.4B Reported value, 2019-09-30: $4B Reported value, 2019-12-31: $3.7B Reported value, 2020-03-31: $2.8B Reported value, 2020-06-30: $2.9B Reported value, 2020-09-30: $3.4B Reported value, 2020-12-31: $5.3B Reported value, 2021-03-31: $4.9B Reported value, 2021-06-30: $5.3B Reported value, 2021-09-30: $5.8B Reported value, 2021-12-31: $5.2B Reported value, 2022-03-31: $3.2B Reported value, 2022-06-30: $1.4B Reported value, 2022-09-30: $1.1B Reported value, 2022-12-31: $1.1T Reported value, 2023-03-31: $1.8B Reported value, 2023-06-30: $2.2B Reported value, 2023-09-30: $1.8B Reported value, 2023-12-31: $2.3B Reported value, 2024-03-31: $2.2B Reported value, 2024-06-30: $2.1B Reported value, 2024-09-30: $2.1B Reported value, 2024-12-31: $3.4B Reported value, 2025-03-31: $1.9B Reported value, 2025-06-30: $2.6B Reported value, 2025-09-30: $2.7B Reported value, 2025-12-31: $2.5B Reported value, 2026-03-31: $2.2B Reported value, 2026-06-30: $2.7B 2013-06-30 2016-03-31 2018-12-31 2021-09-30 2026-06-30 $2.7B
View chart data
Period Reported value
2013-06-30 $5.2B
2013-09-30 $6.9B
2013-12-31 $8.7B
2014-03-31 $8.4B
2014-06-30 $9.5B
2014-09-30 $9.6B
2014-12-31 $9.4B
2015-03-31 $10.4B
2015-06-30 $11.5B
2015-09-30 $8.2B
2015-12-31 $8B
2016-03-31 $7.6B
2016-06-30 $6.2B
2016-09-30 $7.6B
2016-12-31 $6.6B
2017-03-31 $8.1B
2017-06-30 $8.9B
2017-09-30 $7.5B
2017-12-31 $9.3B
2018-03-31 $8.4B
2018-06-30 $10.1B
2018-09-30 $7.8B
2018-12-31 $3.6B
2019-03-31 $4.4B
2019-06-30 $5.4B
2019-09-30 $4B
2019-12-31 $3.7B
2020-03-31 $2.8B
2020-06-30 $2.9B
2020-09-30 $3.4B
2020-12-31 $5.3B
2021-03-31 $4.9B
2021-06-30 $5.3B
2021-09-30 $5.8B
2021-12-31 $5.2B
2022-03-31 $3.2B
2022-06-30 $1.4B
2022-09-30 $1.1B
2022-12-31 $1.1T
2023-03-31 $1.8B
2023-06-30 $2.2B
2023-09-30 $1.8B
2023-12-31 $2.3B
2024-03-31 $2.2B
2024-06-30 $2.1B
2024-09-30 $2.1B
2024-12-31 $3.4B
2025-03-31 $1.9B
2025-06-30 $2.6B
2025-09-30 $2.7B
2025-12-31 $2.5B
2026-03-31 $2.2B
2026-06-30 $2.7B

Holdings and moves

CompanyShare of portfolioValueSharesChange in shares
DPCDPC Holdings PLC8.99%$246.4m5.02MNew
UALUnited Airlines Holdings5.34%$146.2m1.08M−24.8% Reduced
BABoeing5.11%$139.9m646.5K+46.6% Added
VVisa Inc.3.95%$108.3m315.8K+23.8% Added
TSMTaiwan Semiconductor Manufacturing Co LTD3.67%$100.6m210.7K−19.7% Reduced
AMZNAmazon3.65%$100.1m420.0K−31.1% Reduced
WWDWoodward, Inc.3.47%$95.1m223.6K−1.3% Reduced
UNHUnitedHealth Group2.83%$77.6m186.7K+433.4% Added
AKAMAkamai Technologies2.76%$75.7m640.0KNew
CVNACarvana2.73%$74.9m1.14M+516.5% Added
NVDANVIDIA Corporation2.46%$67.3m336.6K−59.2% Reduced
FLEXFlex Ltd.2.44%$67.0m413.4KNew
DHRDanaher Corporation2.37%$64.9m340.9K−21.3% Reduced
PRMPerimeter Solutions, Inc.2.33%$64.0m1.79M−24.3% Reduced
AVGOBroadcom2.23%$61.2m162.1K−13.6% Reduced
COPConocoPhillips2.04%$56.0m538.3K+145.8% Added
METAMeta Platforms1.88%$51.6m91.6K−31.4% Reduced
ASAmer Sports, Inc.1.85%$50.8m1.50M+15.3% Added
TMOThermo Fisher Scientific1.83%$50.1m100.0KNew
SNSharkninja, Inc.1.75%$47.8m314.0K−43.3% Reduced
AMATApplied Materials1.72%$47.0m65.0K0.0%
COFCapital One1.71%$46.8m233.1KNew
BKDBrookdale Senior Living Inc.1.68%$46.0m2.86M+16.3% Added
DKSDick's Sporting Goods, Inc.1.66%$45.4m200.0KNew
NUNu Holdings Ltd.1.57%$43.1m3.23M+31.6% Added
PRMBPrimo Brands Corp1.43%$39.3m1.61MNew
ESIElement Solutions Inc1.26%$34.6m725.0KNew
CSTMConstellium SE1.26%$34.5m1.08MNew
MKSIMKS Inc1.05%$28.9m65.0KNew
THTarget Hospitality Corp.1.04%$28.5m1.40MNew
CLFCleveland-cliffs Inc.0.94%$25.7m2.74MNew
ULSUL Solutions Inc.0.93%$25.5m250.0K−37.5% Reduced
VRTVertiv0.84%$23.0m68.7K−73.6% Reduced
VSATViasat Inc0.59%$16.2m180.0KNew
ATIATI Inc0.57%$15.8m80.0K−44.8% Reduced
ALKSAlkermes plc.0.53%$14.4m275.0K+17.0% Added
BSXBoston Scientific0.47%$12.8m300.0KNew
OPTUOptimum Communications, Inc.0.42%$11.6m8.00M+60.0% Added
SRRKScholar Rock Holding Corp0.41%$11.3m205.0KNew
NTRANatera, Inc.0.32%$8.8m32.5KNew
ABVXAbivax S.a.0.27%$7.3m55.0KNew
GGRGogoro Inc.0.20%$5.4m1.35M0.0%
KNTKKinetik Holdings Inc.0.13%$3.6m75.5K0.0%
WULFTerawulf Inc.0.13%$3.4m139.1K0.0%
VSTVistra Corp.0.10%$2.7m16.8K−91.5% Reduced
GLXYGalaxy Digital Inc.0.10%$2.6m96.5K−32.8% Reduced
MTArcelormittal0.09%$2.5m41.3K−87.9% Reduced
WRBYWarby Parker Inc.0.06%$1.5m50.0K−90.0% Reduced
RIOTRiot Platforms, Inc.0.05%$1.3m48.5K−96.8% Reduced
ATROAstronics Corp0.02%$544,6056.7K−68.9% Reduced
CompanyBought (value)Shares
DPCDPC Holdings PLC$246.4m5.02M
AKAMAkamai Technologies$75.7m640.0K
FLEXFlex Ltd.$67.0m413.4K
UNHUnitedHealth Group$63.0m151.7K
CVNACarvana$62.7m953.3K
TMOThermo Fisher Scientific$50.1m100.0K
COFCapital One$46.8m233.1K
DKSDick's Sporting Goods, Inc.$45.4m200.0K
BABoeing$44.5m205.5K
PRMBPrimo Brands Corp$39.3m1.61M
ESIElement Solutions Inc$34.6m725.0K
CSTMConstellium SE$34.5m1.08M
COPConocoPhillips$33.2m319.3K
MKSIMKS Inc$28.9m65.0K
THTarget Hospitality Corp.$28.5m1.40M

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanySold (value)Shares
MSFTMicrosoft Corporation−$99.0m−267.5K
NVDANVIDIA Corporation−$97.7m−488.1K
VRTVertiv−$64.0m−191.3K
UALUnited Airlines Holdings−$48.2m−354.2K
AMZNAmazon−$45.3m−190.0K
RIOTRiot Platforms, Inc.−$39.7m−1.45M
VIKViking Holdings Ltd−$38.4m−523.0K
APOApollo Global Management−$37.9m−340.0K
CCitigroup−$37.4m−330.0K
SNSharkninja, Inc.−$36.5m−240.0K
PFEPfizer−$35.1m−1.25M
HALHalliburton−$33.0m−846.7K
AEISAdvanced Energy Industries Inc−$32.3m−100.0K
LHXL3Harris−$31.1m−90.0K
VSTVistra Corp.−$28.6m−180.0K

Change in shares on the previous quarter's 13F, valued at this quarter's reported price.

CompanyValue last quarterShares
MSFTMicrosoft Corporation$99.0m267.5K
VIKViking Holdings Ltd$38.4m523.0K
APOApollo Global Management$37.9m340.0K
CCitigroup$37.4m330.0K
PFEPfizer$35.1m1.25M
HALHalliburton$33.0m846.7K
AEISAdvanced Energy Industries Inc$32.3m100.0K
LHXL3Harris$31.1m90.0K
APHAmphenol$25.3m200.0K
JHXJames Hardie Industries plc$21.0m1.11M
RKTRocket Companies, Inc.$17.8m1.25M
HASHasbro$16.4m175.0K
CVSCVS Health$12.6m175.0K
ECHOEchoStar$12.0m102.5K
HOODRobinhood Markets$9.8m140.9K
HWMHowmet Aerospace$9.6m41.6K
HHyatt Hotels Corp$1.4m9.9K
CELHCelsius Holdings, Inc.$1.3m36.3K
  • Industrials29.6%
  • Technology20.1%
  • Consumer Discretionary15.2%
  • Health Care12.6%
  • Financials8.6%
  • Materials6.9%
  • Communication Services2.7%
  • Energy2.6%
  • Consumer Staples1.7%
  • Utilities0.1%

Share of the value held in companies we cover, by sector.

PeriodCopy, a yearS&P 500SharpeS&P 500Biggest dropBeta
Whole backtestAugust 16, 2013 to November 2, 2026+11.7%+14.1%0.580.78−35.7%1.08
2018 onwardsJanuary 5, 2018 to November 2, 2026+10.1%+13.9%0.430.66−35.7%1.08
Last three yearsNovember 3, 2023 to November 2, 2026+19.5%+21.8%0.771.16−23.7%1.23
Last yearNovember 7, 2025 to November 2, 2026−1.0%+14.2%−0.130.84−16.3%1.42

From SEC Form 13F data sets. A 13F lists long positions in US-listed shares at the quarter's end, filed up to 45 days later; it does not show shorts, cash, bonds, non-US holdings or trades within the quarter. Positions in companies outside our coverage are not listed here. Research, not investment advice.