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Built from publicly disclosed institutional and insider activity. Informational purposes only - not investment advice.OpenStocks · v0.1
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  1. Home/
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  3. Andreas Halvorsen (Viking Global)
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Hedge Fund · CIK 0001103804

Andreas Halvorsen

Viking Global
Share
  • Large Fund

Andreas Halvorsen runs Viking Global, a hedge fund overseeing $37.68B in disclosed equity holdings (SEC CIK 0001103804). The latest portfolio (2025Q4) discloses 76 positions across 8 sectors, with the largest positions in MSFT, PNC and TSM. On a mark-to-market basis the tracked portfolio has returned 26.6% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Andreas's filingsView holdings↓
Portfolio
$37.68B
Positions
76
Quarter
2025Q4
Filings tracked
40
1Y+26.6%Since filing+115.7%Full performance →
Quarter
2025Q42025Q32025Q22025Q12024Q42024Q32024Q22024Q12023Q42023Q32023Q22023Q1

Holdings

Sorted by value · 2023Q1
1 / 2
75 of 81
1
VVISA INC
Financial Services·Credit Services
6.94%
of portfolio
Number of shares
6,560,069 sh
Holdings current value
$1.48B
Avg closing price
$290.91
+9.0%
Last action
Added 19.9%
2025Q4
Current $317.02
2
MCKMCKESSON CORP
Healthcare·Medical Distribution
5.36%
of portfolio
Number of shares
3,207,080 sh
Holdings current value
$1.14B
Avg closing price
$404.61
+114.1%
Last action
Exited
2024Q3
Current $866.38
3
UNHUNITEDHEALTH GROUP INC
Healthcare·Healthcare Plans
4.66%
of portfolio
Number of shares
2,099,991 sh
Holdings current value
$992.43M
Avg closing price
$505.66
-35.8%
Last action
New holding
2025Q4
Current $324.63
4
ELVANTHEM INC
Healthcare·Healthcare Plans
4.65%
of portfolio
Number of shares
2,154,556 sh
Holdings current value
$990.69M
Avg closing price
$457.25
-29.4%
Last action
Exited
2023Q3
Current $323.05
5
GEGENERAL ELECTRIC CO
Industrials·Aerospace & Defense
3.86%
of portfolio
Number of shares
8,612,232 sh
Holdings current value
$823.33M
Avg closing price
$92.29
+229.5%
Last action
Exited
2024Q2
Current $304.13
6
FTNTFORTINET INC
Technology·Software - Infrastructure
3.70%
of portfolio
Number of shares
11,875,384 sh
Holdings current value
$789.24M
Avg closing price
$55.92
+46.4%
Last action
Exited
2023Q4
Current $81.84
7
AMZNAMAZON COM INC
Consumer Cyclical·Internet Retail
3.70%
of portfolio
Number of shares
7,628,220 sh
Holdings current value
$787.92M
Avg closing price
$188.89
+32.6%
Last action
New holding
2025Q4
Current $250.56
8
APGAPI GROUP CORP
Industrials·Engineering & Construction
3.60%
of portfolio
Number of shares
34,090,285 sh
Holdings current value
$766.35M
Avg closing price
$13.77
+239.4%
Last action
Trimmed 2.2%
2025Q4
Current $46.75
9
LULULULULEMON ATHLETICA INC
Consumer Cyclical·Apparel Retail
3.24%
of portfolio
Number of shares
1,893,883 sh
Holdings current value
$689.73M
Avg closing price
$364.19
-54.1%
Last action
Exited
2025Q1
Current $167.28
10
METAMETA PLATFORMS INC
Communication Services·Internet Content & Information
3.21%
of portfolio
Number of shares
3,229,914 sh
Holdings current value
$684.55M
Avg closing price
$669.63
+2.8%
Last action
Exited
2025Q4
Current $688.55
11
H1467J104CHUBB LIMITED
3.16%
of portfolio
Number of shares
3,466,740 sh
Holdings current value
$673.17M
Avg closing price
$228.40
Last action
New holding
2025Q4
Current —
12
CSXCSX CORP
Industrials·Railroads
3.10%
of portfolio
Number of shares
22,057,119 sh
Holdings current value
$660.39M
Avg closing price
$32.66
+32.7%
Last action
Trimmed 8.8%
2025Q4
Current $43.32
13
G76279101ROIVANT SCIENCES LTD
3.06%
of portfolio
Number of shares
88,238,700 sh
Holdings current value
$651.20M
Avg closing price
$10.08
Last action
Trimmed 16.3%
2025Q4
Current —
14
HDBHDFC BANK LTDADR
Financial Services·Banks - Regional
2.59%
of portfolio
Number of shares
8,285,627 sh
Holdings current value
$552.40M
Avg closing price
$64.33
-57.2%
Last action
Exited
2024Q3
Current $27.51
15
INTUINTUIT
Technology·Software - Application
2.55%
of portfolio
Number of shares
1,221,094 sh
Holdings current value
$544.40M
Avg closing price
$587.86
-33.1%
Last action
Exited
2025Q4
Current $393.25
16
SHWSHERWIN WILLIAMS CO
Basic Materials·Specialty Chemicals
2.38%
of portfolio
Number of shares
2,252,060 sh
Holdings current value
$506.20M
Avg closing price
$344.76
+0.2%
Last action
Added 14.9%
2025Q4
Current $345.55
17
TMOTHERMO FISHER SCIENTIFIC INC
Healthcare·Diagnostics & Research
2.32%
of portfolio
Number of shares
856,836 sh
Holdings current value
$493.85M
Avg closing price
$573.51
-8.2%
Last action
New holding
2025Q4
Current $526.60
18
BBIOBRIDGEBIO PHARMA INC
Healthcare·Biotechnology
2.07%
of portfolio
Number of shares
26,620,991 sh
Holdings current value
$441.38M
Avg closing price
$26.97
+184.6%
Last action
Trimmed 5.6%
2025Q4
Current $76.75
19
FTVFORTIVE CORP
Technology·Scientific & Technical Instruments
2.03%
of portfolio
Number of shares
6,346,528 sh
Holdings current value
$432.64M
Avg closing price
$64.19
-5.7%
Last action
Trimmed 16.5%
2025Q4
Current $60.52
20
G7709Q104ROYALTY PHARMA PLC
1.89%
of portfolio
Number of shares
11,204,249 sh
Holdings current value
$403.69M
Avg closing price
$38.15
Last action
Exited
2025Q3
Current —
21
G7997R103SEAGATE TECHNOLOGY HLDNGS PL
1.71%
of portfolio
Number of shares
5,513,957 sh
Holdings current value
$364.58M
Avg closing price
$52.61
Last action
Exited
2023Q3
Current —
22
MSFTMICROSOFT CORP
Technology·Software - Infrastructure
1.42%
of portfolio
Number of shares
1,047,352 sh
Holdings current value
$301.95M
Avg closing price
$472.50
-10.5%
Last action
Added 304.2%
2025Q4
Current $422.79
23
MAMASTERCARD INCORPORATED
Financial Services·Credit Services
1.36%
of portfolio
Number of shares
796,740 sh
Holdings current value
$289.54M
Avg closing price
$374.94
+39.0%
Last action
Exited
2024Q2
Current $521.30
24
AMPAMERIPRISE FINL INC
Financial Services·Asset Management
1.35%
of portfolio
Number of shares
941,040 sh
Holdings current value
$288.43M
Avg closing price
$292.94
+55.7%
Last action
Exited
2024Q4
Current $456.20
25
48576A100KARUNA THERAPEUTICS INC
1.28%
of portfolio
Number of shares
1,501,074 sh
Holdings current value
$272.66M
Avg closing price
$139.13
Last action
Exited
2023Q4
Current —
26
ADPTADAPTIVE BIOTECHNOLOGIES COR
Healthcare·Biotechnology
1.24%
of portfolio
Number of shares
29,993,708 sh
Holdings current value
$264.84M
Avg closing price
$48.30
-70.0%
Last action
Trimmed 10.4%
2020Q4
Current $14.47
27
VVVVALVOLINE INC
Consumer Cyclical·Auto & Truck Dealerships
1.21%
of portfolio
Number of shares
7,398,713 sh
Holdings current value
$258.51M
Avg closing price
$29.38
+17.6%
Last action
Exited
2024Q2
Current $34.56
28
RCIROGERS COMMUNICATIONS INC
Communication Services·Telecom Services
1.21%
of portfolio
Number of shares
5,554,500 sh
Holdings current value
$257.44M
Avg closing price
$41.16
-19.1%
Last action
Exited
2024Q4
Current $33.32
29
CDNSCADENCE DESIGN SYSTEM INC
Technology·Software - Application
1.21%
of portfolio
Number of shares
1,225,306 sh
Holdings current value
$257.42M
Avg closing price
$186.33
+66.9%
Last action
Exited
2024Q1
Current $311.03
30
ACHCACADIA HEALTHCARE COMPANY IN
Healthcare·Medical Care Facilities
1.14%
of portfolio
Number of shares
3,354,110 sh
Holdings current value
$242.33M
Avg closing price
$65.69
-58.9%
Last action
Exited
2024Q4
Current $27.00
31
BMRNBIOMARIN PHARMACEUTICAL INC
Healthcare·Biotechnology
0.99%
of portfolio
Number of shares
2,168,617 sh
Holdings current value
$210.88M
Avg closing price
$77.65
-29.6%
Last action
Trimmed 51.3%
2025Q4
Current $54.64
32
EMREMERSON ELEC CO
Industrials·Specialty Industrial Machinery
0.98%
of portfolio
Number of shares
2,400,879 sh
Holdings current value
$209.21M
Avg closing price
$83.12
+76.1%
Last action
Exited
2023Q3
Current $146.35
33
DNA4EURGINKGO BIOWORKS HOLDINGS INC
0.89%
of portfolio
Number of shares
143,085,126 sh
Holdings current value
$190.30M
Avg closing price
$3.11
Last action
Exited
2024Q3
Current —
34
MUMICRON TECHNOLOGY INC
Technology·Semiconductors
0.81%
of portfolio
Number of shares
2,856,599 sh
Holdings current value
$172.37M
Avg closing price
$53.55
+749.9%
Last action
Exited
2023Q3
Current $455.07
35
UNMUNUM GROUP
Financial Services·Insurance - Life
0.79%
of portfolio
Number of shares
4,253,413 sh
Holdings current value
$168.27M
Avg closing price
$37.63
+111.6%
Last action
Exited
2023Q4
Current $79.63
36
GTMZOOMINFO TECHNOLOGIES INC
Technology·Software - Application
0.77%
of portfolio
Number of shares
6,666,576 sh
Holdings current value
$164.73M
Avg closing price
$22.96
-73.0%
Last action
Exited
2023Q4
Current $6.21
37
XYZBLOCK INC
Technology·Software - Infrastructure
0.76%
of portfolio
Number of shares
2,354,123 sh
Holdings current value
$161.61M
Avg closing price
$47.60
+49.7%
Last action
Exited
2025Q3
Current $71.26
38
CEGCONSTELLATION ENERGY CORP
Utilities·Utilities - Independent Power Producers
0.75%
of portfolio
Number of shares
2,047,688 sh
Holdings current value
$160.74M
Avg closing price
$78.50
+277.3%
Last action
Exited
2023Q3
Current $296.21
39
MOHMOLINA HEALTHCARE INC
Healthcare·Healthcare Plans
0.75%
of portfolio
Number of shares
594,553 sh
Holdings current value
$159.04M
Avg closing price
$213.72
-30.3%
Last action
Exited
2025Q3
Current $148.97
40
PGRPROGRESSIVE CORP
Financial Services·Insurance - Property & Casualty
0.67%
of portfolio
Number of shares
1,003,562 sh
Holdings current value
$143.57M
Avg closing price
$179.08
+13.1%
Last action
New holding
2025Q4
Current $202.58
41
WDAYWORKDAY INC
Technology·Software - Application
0.62%
of portfolio
Number of shares
642,447 sh
Holdings current value
$132.69M
Avg closing price
$232.28
-46.7%
Last action
Exited
2024Q4
Current $123.83
42
INBXUSDINHIBRX INC
0.59%
of portfolio
Number of shares
6,639,199 sh
Holdings current value
$125.28M
Avg closing price
$19.26
Last action
Exited
2024Q2
Current —
43
CPNGCOUPANG INC
Consumer Cyclical·Internet Retail
0.56%
of portfolio
Number of shares
7,421,453 sh
Holdings current value
$118.74M
Avg closing price
$16.34
+31.9%
Last action
Exited
2024Q1
Current $21.55
44
EQHEQUITABLE HLDGS INC
Financial Services·Asset Management
0.48%
of portfolio
Number of shares
3,989,446 sh
Holdings current value
$101.29M
Avg closing price
$48.43
-13.8%
Last action
Exited
2025Q2
Current $41.73
45
KBRKBR INC
Industrials·Engineering & Construction
0.43%
of portfolio
Number of shares
1,679,474 sh
Holdings current value
$92.46M
Avg closing price
$55.06
-33.9%
Last action
Exited
2024Q1
Current $36.42
46
AMLXAMYLYX PHARMACEUTICALS INC
Healthcare·Drug Manufacturers - Specialty & Generic
0.41%
of portfolio
Number of shares
2,962,555 sh
Holdings current value
$86.92M
Avg closing price
$12.85
+42.9%
Last action
Exited
2024Q1
Current $18.36
47
RIVNRIVIAN AUTOMOTIVE INC
Consumer Cyclical·Auto Manufacturers
0.38%
of portfolio
Number of shares
5,250,417 sh
Holdings current value
$81.28M
Avg closing price
$41.53
-58.5%
Last action
Exited
2023Q3
Current $17.23
48
INSPINSPIRE MED SYS INC
Healthcare·Medical Devices
0.38%
of portfolio
Number of shares
346,576 sh
Holdings current value
$81.12M
Avg closing price
$218.67
-73.7%
Last action
Exited
2023Q2
Current $57.59
49
GH 0 11/15/27GUARDANT HEALTH INC
0.38%
of portfolio
Number of shares
120,000,000 sh
Holdings current value
$81.04M
Avg closing price
$1.02
Last action
Exited
2024Q1
Current —
50
CRLCHARLES RIV LABS INTL INC
Healthcare·Diagnostics & Research
0.37%
of portfolio
Number of shares
394,089 sh
Holdings current value
$79.54M
Avg closing price
$298.25
-38.3%
Last action
Exited
2023Q2
Current $183.88
51
SNPSSYNOPSYS INC
Technology·Software - Infrastructure
0.37%
of portfolio
Number of shares
205,032 sh
Holdings current value
$79.19M
Avg closing price
$451.44
-0.4%
Last action
Exited
2025Q2
Current $449.58
52
CTLTEURCATALENT INC
0.37%
of portfolio
Number of shares
1,201,210 sh
Holdings current value
$78.93M
Avg closing price
$87.12
Last action
Exited
2023Q2
Current —
53
G01767105ALKERMES PLC
0.37%
of portfolio
Number of shares
2,781,917 sh
Holdings current value
$78.42M
Avg closing price
$28.19
Last action
Exited
2023Q3
Current —
54
ZLABZAI LAB LTDADR
Healthcare·Biotechnology
0.36%
of portfolio
Number of shares
2,331,245 sh
Holdings current value
$77.54M
Avg closing price
$92.09
-73.7%
Last action
Exited
2024Q4
Current $24.19
55
IFFINTERNATIONAL FLAVORS&FRAGRA
Basic Materials·Specialty Chemicals
0.35%
of portfolio
Number of shares
812,680 sh
Holdings current value
$74.73M
Avg closing price
$87.08
-12.9%
Last action
Exited
2024Q1
Current $75.88
56
FDMT4D MOLECULAR THERAPEUTICS IN
Healthcare·Biotechnology
0.32%
of portfolio
Number of shares
3,937,914 sh
Holdings current value
$67.69M
Avg closing price
$37.30
-71.9%
Last action
Exited
2024Q3
Current $10.49
57
TRVTRAVELERS COMPANIES INC
Financial Services·Insurance - Property & Casualty
0.30%
of portfolio
Number of shares
378,345 sh
Holdings current value
$64.85M
Avg closing price
$181.61
+65.6%
Last action
Exited
2025Q1
Current $300.81
58
GHGUARDANT HEALTH INC
Healthcare·Diagnostics & Research
0.28%
of portfolio
Number of shares
2,538,889 sh
Holdings current value
$59.51M
Avg closing price
$87.91
+2.8%
Last action
Exited
2023Q3
Current $90.36
59
SNOWSNOWFLAKE INC
Technology·Software - Application
0.28%
of portfolio
Number of shares
382,757 sh
Holdings current value
$59.06M
Avg closing price
$282.89
-49.1%
Last action
Exited
2023Q2
Current $143.98
60
NTLAINTELLIA THERAPEUTICS INC
Healthcare·Biotechnology
0.27%
of portfolio
Number of shares
1,569,545 sh
Holdings current value
$58.50M
Avg closing price
$115.40
-87.0%
Last action
Exited
2023Q2
Current $14.95
61
BSXBOSTON SCIENTIFIC CORP
Healthcare·Medical Devices
0.27%
of portfolio
Number of shares
1,136,881 sh
Holdings current value
$56.88M
Avg closing price
$81.32
-21.0%
Last action
Trimmed 10.4%
2025Q4
Current $64.23
62
N62509109NEWAMSTERDAM PHARMA COMPANY
0.25%
of portfolio
Number of shares
3,915,870 sh
Holdings current value
$52.63M
Avg closing price
$10.79
Last action
Trimmed 36.7%
2025Q4
Current —
63
CLCOLGATE PALMOLIVE CO
Consumer Defensive·Household & Personal Products
0.23%
of portfolio
Number of shares
660,698 sh
Holdings current value
$49.65M
Avg closing price
$75.39
+13.8%
Last action
Exited
2023Q4
Current $85.81
64
DELLDELL TECHNOLOGIES INC
Technology·Computer Hardware
0.21%
of portfolio
Number of shares
1,094,394 sh
Holdings current value
$44.01M
Avg closing price
$41.59
+372.6%
Last action
Exited
2023Q3
Current $196.55
65
N20944109CNH INDL N V
0.20%
of portfolio
Number of shares
2,827,515 sh
Holdings current value
$43.18M
Avg closing price
$13.39
Last action
Exited
2024Q2
Current —
66
MRSHMARSH & MCLENNAN COS INC
Financial Services·Insurance Brokers
0.20%
of portfolio
Number of shares
257,443 sh
Holdings current value
$42.88M
Avg closing price
$141.13
+24.6%
Last action
Exited
2024Q1
Current $175.80
67
30744W107FARFETCH LTD
0.16%
of portfolio
Number of shares
7,103,457 sh
Holdings current value
$34.88M
Avg closing price
$8.97
Last action
Exited
2023Q4
Current —
68
OPCHOPTION CARE HEALTH INC
Healthcare·Medical Care Facilities
0.16%
of portfolio
Number of shares
1,090,497 sh
Holdings current value
$34.65M
Avg closing price
$31.77
-9.3%
Last action
Exited
2023Q2
Current $28.82
69
EWTXEDGEWISE THERAPEUTICS INC
Healthcare·Biotechnology
0.15%
of portfolio
Number of shares
4,909,146 sh
Holdings current value
$32.74M
Avg closing price
$19.12
+80.1%
Last action
Exited
2025Q2
Current $34.43
70
VKTXVIKING THERAPEUTICS INC
Healthcare·Biotechnology
0.15%
of portfolio
Number of shares
1,955,063 sh
Holdings current value
$32.55M
Avg closing price
$22.78
+54.5%
Last action
Exited
2024Q4
Current $35.20
71
TJXTJX COS INC NEW
Consumer Cyclical·Apparel Retail
0.15%
of portfolio
Number of shares
414,401 sh
Holdings current value
$32.47M
Avg closing price
$62.77
+156.0%
Last action
Exited
2023Q2
Current $160.68
72
N69605108PHARVARIS N V
0.12%
of portfolio
Number of shares
3,231,923 sh
Holdings current value
$25.27M
Avg closing price
$24.36
Last action
Trimmed 0.1%
2024Q1
Current —
73
75120L100RALLYBIO CORP
0.11%
of portfolio
Number of shares
4,194,777 sh
Holdings current value
$23.95M
Avg closing price
$17.58
Last action
New holding
2021Q3
Current —
74
DAWNDAY ONE BIOPHARMACEUTICALS I
Healthcare·Biotechnology
0.10%
of portfolio
Number of shares
1,558,563 sh
Holdings current value
$20.84M
Avg closing price
$17.42
+23.3%
Last action
Exited
2024Q4
Current $21.47
75
PEPGPEPGEN INC
Healthcare·Biotechnology
0.09%
of portfolio
Number of shares
1,544,631 sh
Holdings current value
$18.89M
Avg closing price
$6.88
-75.3%
Last action
Added
2025Q3
Current $1.70

Portfolio heatmap

Box size = % of portfolio · color = return since filing
V
6.94% · +40.6%
MCK
5.36% · +143.3%
UNH
4.66% · -31.3%
ELV
4.65% · -29.7%
GE
3.86% · +218.1%
FTNT
3.70% · +23.1%
AMZN
3.70% · +142.6%
APG
3.60% · +108.0%
LULU
3.24% · -54.1%
META
3.21% · +224.9%
CHUBB LIMITED
3.16%
CSX
3.10% · +44.7%
ROIVANT SCIENCES LTD
3.06%
HDB
2.59% · -58.7%
INTU
2.55% · -11.8%
SHW
2.38% · +53.7%
TMO
2.32% · -8.6%
BBIO
2.07% · +362.9%
FTV
2.03% · -11.2%
ROYALTY PHARMA PLC
1.89%
SEAGATE TECHNOLOGY HLDNGS PL
1.71%
MSFT
1.42% · +46.6%
MA
1.36% · +43.4%
AMP
1.35% · +48.8%

Sector exposure

Share of dollar value across the latest reported portfolio. Unclassified positions excluded.
  • Healthcare23 pos$5.65B31.1%
  • Technology12 pos$3.14B17.3%
  • Financial Services9 pos$3.13B17.2%
  • Industrials5 pos$2.55B14.0%
  • Consumer Cyclical6 pos$1.97B10.8%
  • Communication Services2 pos$942.0M5.2%
  • Basic Materials2 pos$580.9M3.2%
  • Utilities1 pos$160.7M0.9%
  • Consumer Defensive1 pos$49.7M0.3%
(14.7% unclassified, excluded from %)