Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2019-03-31
$17.44B
Positions
57
2026-03-31
2025-12-31
2025-09-30
2025-06-30
2025-03-31
2024-12-31
2024-09-30
2024-06-30
2024-03-31
2023-12-31
2023-09-30
2023-06-30
2023-03-31
2022-12-31
2022-09-30
2022-06-30
2022-03-31
2021-12-31
2021-09-30
2021-06-30
2021-03-31
2020-12-31
2020-09-30
2020-06-30
2020-03-31
2019-12-31
2019-09-30
2019-06-30
2019-03-31
2018-12-31
2018-09-30
2018-06-30
2018-03-31
2017-12-31
2017-09-30
2017-06-30
2017-03-31
2016-12-31
2016-09-30
2016-06-30
2016-03-31
2015-12-31
2015-09-30
2015-06-30
2015-03-31
2014-12-31
2014-09-30
2014-06-30
2014-03-31
2013-12-31
2013-09-30
2013-06-30
Price is the latest implied close from the selected quarter's 13F (value ÷ shares). Est. Cost is a running average that assumes each quarter's trades cleared near the midpoint of consecutive 13F closes (or yfinance VWAP when available). Most accurate for slow accumulators, least accurate for activists who build positions in a few days.
| # | Issuer | Value ↓ | Weight | Shares | Share Δ | Share Δ % | Prev Weight | First Held | Price | Est. Cost | Unrealized % | Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | ANTHEM INC ELV | $1.78B | 10.19% | 6,194,886 | +1,096,639 | +21.51% | 7.62% | 2014-12-31 | $287 | ~$225 | +27.50% | |
| 2 | UNITEDHEALTH GROUP INC UNH | $925.0M | 5.30% | 3,741,036 | +887,674 | +31.11% | 4.05% | 2016-12-31 | $247 | ~$225 | +10.07% | |
| 3 | UNITED TECHNOLOGIES CORP UTXZ | $913.5M | 5.24% | 7,087,162 | +103,516 | +1.48% | 4.23% | 2016-12-31 | $129 | ~$121 | +6.74% | |
| 4 | MARATHON PETE CORP MPC | $822.5M | 4.72% | 13,742,884 | +506,623 | +3.83% | 4.45% | 2013-06-30 | $60 | ~$70 | -14.28% | |
| 5 | ALIGN TECHNOLOGY INC ALGN | $510.7M | 2.93% | 1,795,990 | +1,234,890 | +220.08% | 0.67% | 2017-09-30 | $284 | ~$228 | +24.57% | |
| 6 | BIOMARIN PHARMACEUTICAL INC BMRN | $455.6M | 2.61% | 5,128,909 | +37,272 | +0.73% | 2.47% | 2016-03-31 | $89 | ~$89 | -0.26% | |
| 7 | BERRY GLOBAL GROUP INC BERYEUR | $416.0M | 2.39% | 7,721,681 | +2,204,431 | +39.96% | 1.49% | 2018-09-30 | $54 | ~$49 | +9.87% | |
| 8 | LIBERTY MEDIA CORP DELAWARE FWONKUSD | $409.0M | 2.35% | 11,670,116 | +782,859 | +7.19% | 1.90% | 2017-03-31 | $35 | ~$34 | +2.89% | |
| 9 | ILLUMINA INC ILMN | $367.3M | 2.11% | 1,182,324 | +38,370 | +3.35% | 1.95% | 2013-12-31 | $311 | ~$274 | +13.52% | |
| 10 | WELLCARE HEALTH PLANS INC WCGEUR | $356.2M | 2.04% | 1,320,404 | +759,986 | +135.61% | 0.75% | 2015-12-31 | $270 | ~$197 | +36.59% | |
| 11 | THERMO FISHER SCIENTIFIC INC TMO | $313.7M | 1.80% | 1,146,037 | +598,131 | +109.17% | 0.70% | 2013-06-30 | $274 | ~$218 | +25.41% | |
| 12 | CENTENE CORP DEL CNC | $223.0M | 1.28% | 4,198,726 | +3,237,474 | +336.80% | 0.63% | 2014-06-30 | $53 | ~$49 | +7.54% | |
| 13 | DAVITA INC DVA | $149.6M | 0.86% | 2,755,505 | +144,876 | +5.55% | 0.76% | 2013-12-31 | $54 | ~$61 | -11.45% | |
| 14 | SYNEOS HEALTH INC 8IN | $114.9M | 0.66% | 2,219,074 | +462,724 | +26.35% | 0.39% | 2018-03-31 | $52 | ~$38 | +36.98% | |
| 15 | AON PLC | $111.7M | 0.64% | 654,224 | +130,417 | +24.90% | 0.43% | 2014-09-30 | $171 | ~$112 | +52.92% | |
| 16 | MYLAN N V | $101.5M | 0.58% | 3,583,269 | +1,653,301 | +85.66% | 0.30% | 2018-09-30 | $28 | ~$33 | -12.99% | |
| 17 | MIDDLEBY CORP MIDD | $80.9M | 0.46% | 622,493 | +2,352 | +0.38% | 0.36% | 2018-06-30 | $130 | ~$104 | +24.47% | |
| 18 | ANAPTYSBIO INC ANAB | $60.6M | 0.35% | 830,160 | +84,123 | +11.28% | 0.27% | 2018-03-31 | $73 | ~$94 | -22.00% | |
| 19 | ATYR PHARMA INC LIFEUSD | $1.8M | 0.01% | 3,209,955 | +1,825,655 | +131.88% | 0.00% | 2017-09-30 | $1 | ~$2 | -77.77% |