Andreas Halvorsen

Viking Global

Andreas Halvorsen is a prominent figure in the investment management industry, serving as the co-founder and CEO of Viking Global Investors, an American hedge fund firm based in Stamford, Connecticut. The firm is known for its expertise in long-short equity, long-only equity, and private equity strategies. Halvorsen's investment philosophy emphasizes rigorous fundamental analysis and a focus on long-term value creation, which has positioned Viking Global as a significant player in the financial markets. Viking Global Investors employs a multi-strategy approach, leveraging its deep research capabilities to navigate various sectors, including healthcare, financial services, and consumer cyclical industries. The firm actively manages a diverse portfolio, which has included notable positions in companies such as Apple Inc., Microsoft Corp., and DraftKings Inc. Their strategy involves a combination of position increases, reductions, and exits, reflecting a dynamic approach to market opportunities. Recent disclosures from Viking Global indicate a range of activities between November 14, 2025, and May 15, 2026, with a total of 200 reported moves. The firm has shown a pattern of significant position reductions and exits, particularly highlighted by a notable move involving Microsoft Corp, which saw a value of approximately $1.3 billion. This activity underscores Halvorsen's adaptive investment strategy in response to market conditions.

History Trades

CompanyValueActionChangePriceLast Price
First Solar, Inc.FSLR$-169.4MExitQ4 2025 13F$169M$252.20$207.57
Andreas Halvorsen (Viking Global) other Unmapped 13F securityPORTFOLIO$157M12.4M sharesOtherQ4 2025 13F$157M$12.67--
IQVIA Holdings, Inc. Common StockIQV$139.6MOtherQ4 2025 13F$140M$217.58$210.49
Andreas Halvorsen (Viking Global) add Unmapped 13F securityPORTFOLIO$801M3.7M sharesAddQ4 2025 13F$125M$214.16--
HCA Healthcare IncHCA$-121.9MTrimQ4 2025 13F$122M$464.28$370.37
APPLOVIN CORPAPP$-116.8MExitQ4 2025 13F$117M$630.10$427.01
Camden Property TrustCPT$113.7MAddQ4 2025 13F$114M$104.00$112.09
TIC Solutions, Inc.TIC$-110.0MTrimQ4 2025 13F$110M$11.13$7.16
Ryan Specialty Holdings, Inc.RYAN$-109.1MExitQ4 2025 13F$109M$54.85$40.66
UBS Group AGUBS$-108.9MTrimQ4 2025 13F$109M$40.40$51.91
Integer Holdings CorporationITGR$-105.9MExitQ4 2025 13F$106M$79.69$99.62
DraftKings Inc.DKNG$97.7MAddQ4 2025 13F$98M$32.89$22.83
BioMarin Pharmaceutical Inc.BMRN$-92.0MTrimQ4 2025 13F$92M$54.44$58.95
Masimo CorporationMASI$-91.5MTrimQ4 2025 13F$91M$143.19$179.95
West Pharmaceutical Services, Inc.WST$81.2MOtherQ4 2025 13F$81M$273.53$359.00
McDonald's CorporationMCD$80.5MAddQ4 2025 13F$81M$306.28$267.18
Celestica, Inc. Common StockCLS$77.9MAddQ4 2025 13F$78M$301.37$334.77
The PNC Financial Services Group, Inc.PNC$-77.7MTrimQ4 2025 13F$78M$193.03$248.90
The Walt Disney CompanyDIS$1B11.2M sharesAddQ4 2025 13F$77M$110.13$96.22
Sea LimitedSE$-74.8MTrimQ4 2025 13F$75M$148.11$106.26
CSX CorpCSX$-65.4MTrimQ4 2025 13F$65M$35.78$50.23
Ralliant Corp.RAL$-61.2MTrimQ4 2025 13F$61M$46.87$67.53
CoStar Group, Inc.CSGP$-59.1MTrimQ4 2025 13F$59M$70.84$30.37
Saia, Inc. - Common StockSAIA$-58.8MTrimQ4 2025 13F$59M$326.52$417.05
Fortive CorporationFTV$58.1MAddQ4 2025 13F$58M$51.90$60.52
Andreas Halvorsen (Viking Global) add Unmapped 13F securityPORTFOLIO$114M1.4M sharesAddQ4 2025 13F$53M$79.00--
Teva Pharmaceutical Industries LimitedTEVA$-51.1MExitQ4 2025 13F$51M$24.64$31.56
Tesla IncTSLA$48.5MAddQ4 2025 13F$48M$443.29$374.01
Andreas Halvorsen (Viking Global) trim Unmapped 13F securityPORTFOLIO$180M4.8M sharesTrimQ4 2025 13F$41M$37.35--
Johnson Controls International plcJCI$-38.6MTrimQ4 2025 13F$39M$114.81$140.13
Adaptive Biotechnologies CorporationADPT$38.4MAddQ4 2025 13F$38M$16.32$21.86
Sionna Therapeutics, Inc.SION$37.5MAddQ4 2025 13F$37M$37.92$45.29
Andreas Halvorsen (Viking Global) trim Unmapped 13F securityPORTFOLIO$147M4.2M sharesTrimQ4 2025 13F$37M$35.08--
Andreas Halvorsen (Viking Global) exit Unmapped 13F securityPORTFOLIO$-34.4MExitQ4 2025 13F$34M----
Maplebear Inc. - Common StockCART$-30.6MExitQ4 2025 13F$31M$40.93$47.61
The Sherwin-Williams Co (2)SHW$30.3MAddQ4 2025 13F$30M$334.51$327.67
Andreas Halvorsen (Viking Global) add Unmapped 13F securityPORTFOLIO$81M2.7M sharesAddQ4 2025 13F$30M$30.31--
ORIC Pharmaceuticals, Inc.ORIC$-25.1MTrimQ4 2025 13F$25M$11.51$10.73
Ginkgo Bioworks Holdings, Inc.DNA$-22.4MTrimQ4 2025 13F$22M$10.77$8.29
T-Mobile US IncTMUS$-18.7MTrimQ4 2025 13F$19M$212.00$190.94
Boston Scientific CorpBSX$-18.6MTrimQ4 2025 13F$19M$98.04$44.17
APi Group Corporation Common StockAPG$18.5MAddQ4 2025 13F$18M$36.98$41.20
Establishment Labs Holdings Inc.ESTA$-14.1MExitQ4 2025 13F$14M$60.38$92.30
Pharvaris N.V.PHVS$10.2MAddQ4 2025 13F$10M--$33.55
Trevi Therapeutics, Inc.TRVI$-6.9MTrimQ4 2025 13F$7M$11.56$17.36
Andreas Halvorsen (Viking Global) add Unmapped 13F securityPORTFOLIO$23M3.5M sharesAddQ4 2025 13F$7M$6.51--
Regal Rexnord Corporation Common StockRRX$4.4MAddQ4 2025 13F$4M$142.29$213.31
Standard BioTools Inc.LAB$-1.2MTrimQ4 2025 13F$1M$1.34$0.8575
Andreas Halvorsen (Viking Global) add Unmapped 13F securityPORTFOLIO$3M4.2M sharesAddQ4 2025 13F$785k$0.6861--
Microsoft CorpMSFT$1.3BOtherQ3 2025 13F$1B$510.13$390.34
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