Andreas Halvorsen

Viking Global Investors LP

as of Dec 31, 2020 · filed Feb 16, 2021 · 47-day reporting lag · historical report

Source filings

13F-HR 0001103804-21-000003

QuarterCompare any two quarters

Portfolio value$36.4B 31.4% vs. previous quarter

Positions9625 new · 15 sold

Top 525.2%largest MSFT at 7.2%

Largest moveUNHNew · 2.7% weight

Concentration

How much of the portfolio the biggest positions add up to. Hover the curve, or focus it and use the arrow keys, to inspect each rank.

Longest held

One block per imported quarter, oldest at the left. A full row means held in all of them, not that the position began there.

12%held throughout

BBIO26

ADPT26

FTV26

V25

AMZN25

Top 3 moves

UNH+2.7%

V+2.2%

AXP−2.2%

25 new positions and 15 sold; the largest portfolio-weight shift was UNH entering at 2.7%.

Holdings

Reported price is value divided by shares, the manager’s quarter-end mark rather than a traded price.

1–25 of 96, sorted by portfolio weight, high to low

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Reported holdings for Q4 2020

MSFTMICROSOFT CORPInformation Technology	7.2%+1.0%	Increased43.4%	11,838,092	$222.42	$2.63B
BBIOBRIDGEBIO PHARMA INCHealth Care	5.2%+1.6%	Unchanged	26,620,991	$71.11	$1.89B
ADPTADAPTIVE BIOTECHNOLOGIESHealth Care	4.9%-1.0%	Reduced10.4%	29,993,708	$59.13	$1.77B
FISFIDELITY NATIONAL INFO SERVFinancials	4.6%-0.1%	Increased33.2%	11,835,412	$141.46	$1.67B
TMUST-MOBILE US INCCommunication Services	3.2%-0.1%	Increased7.9%	8,705,481	$134.85	$1.17B
GOOGLALPHABET INC-CL ACommunication ServicesSupply chain (as of Q2 2026)	3.0%+2.0%	Increased222.9%	619,791	$1752.64	$1.09B
BSXBOSTON SCIENTIFIC CORPHealth Care	3.0%+0.4%	Increased59.3%	29,990,892	$35.95	$1.08B
JPMJPMORGAN CHASE & COFinancials	3.0%-0.3%	Reduced10.5%	8,459,075	$127.07	$1.07B
UNHNEWUNITEDHEALTH GROUP INCHealth Care	2.7%+2.7%	New	2,793,665	$350.68	$979.7M
VVISA INC-CLASS A SHARESFinancials	2.5%+2.2%	Increased1170.4%	4,085,538	$218.73	$893.6M
CNCCENTENE CORPHealth Care	2.2%-1.5%	Reduced25.0%	13,087,649	$60.03	$785.7M
ABCLNEWABCELLERA BIOLOGICS INCHealth Care	2.1%+2.1%	New	19,283,744	$40.24	$776.0M
DISNEWWALT DISNEY CO/THECommunication Services	2.1%+2.1%	New	4,271,505	$181.18	$773.9M
NUANEURNUANCE COMMUNICATIONS INCUnclassified	2.0%-0.1%	Reduced3.5%	16,382,663	$44.09	$722.3M
MELIMERCADOLIBRE INCConsumer Discretionary	1.9%	Reduced13.0%	411,914	$1675.22	$690.0M
PANWNEWPALO ALTO NETWORKS INCInformation Technology	1.8%+1.8%	New	1,887,130	$355.39	$670.7M
AMZNAMAZON.COM INCConsumer DiscretionarySupply chain (as of Q2 2026)	1.8%-1.3%	Reduced26.4%	200,471	$3256.93	$652.9M
AXPAMERICAN EXPRESS COFinancials	1.7%-2.2%	Reduced51.8%	5,224,231	$120.91	$631.7M
FLT1EURFLEETCOR TECHNOLOGIES INCUnclassified	1.7%+1.3%	Increased383.1%	2,269,747	$272.83	$619.3M
TSMTAIWAN SEMICONDUCTOR-SP ADRInformation TechnologySupply chain (as of Q3 2026)	1.7%-0.1%	Reduced8.9%	5,601,289	$109.04	$610.8M
APGAPI GROUP CORPConsumer Discretionary	1.7%-0.1%	Unchanged	33,333,333	$18.15	$605.0M
ZBHZIMMER BIOMET HOLDINGS INCHealth Care	1.6%+0.8%	Increased128.8%	3,867,074	$154.09	$595.9M
FTVFORTIVE CORPIndustrials	1.6%-0.3%	Increased16.8%	7,963,937	$70.82	$564.0M
Ticker unavailableAON PLCUnclassified	1.5%-0.8%	Reduced14.7%	2,570,620	$211.27	$543.1M
HLTHILTON WORLDWIDE HOLDINGS INConsumer Discretionary	1.4%-1.3%	Reduced46.6%	4,719,901	$111.26	$525.1M