Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2023-12-31
$27.30B
Positions
79
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 | BRIDGEBIO PHARMA INC BBIO | $1.01B | 3.71% | 25,120,991 | +0 | +0.00% | 2.69% | 2019-06-30 | $40 | ~$27 | +49.68% | |
| 2 | RAYZEBIO INC | $413.0M | 1.51% | 6,642,700 | +0 | +0.00% | 0.60% | 2023-09-30 | $62 | ~$22 | +180.05% | |
| 3 | INHIBRX INC INBXUSD | $271.7M | 1.00% | 7,150,826 | +0 | +0.00% | 0.53% | 2020-09-30 | $38 | ~$19 | +100.93% | |
| 4 | GINKGO BIOWORKS HOLDINGS INC DNA4EUR | $241.8M | 0.89% | 143,085,126 | +0 | +0.00% | 1.05% | 2021-09-30 | $2 | ~$3 | -45.37% | |
| 5 | ADAPTIVE BIOTECHNOLOGIES COR ADPT | $147.0M | 0.54% | 29,993,708 | +0 | +0.00% | 0.66% | 2019-06-30 | $5 | ~$48 | -89.86% | |
| 6 | 4D MOLECULAR THERAPEUTICS IN FDMT | $97.0M | 0.36% | 4,787,914 | +0 | +0.00% | 0.25% | 2020-12-31 | $20 | ~$37 | -45.57% | |
| 7 | NEWAMSTERDAM PHARMA COMPANY | $89.6M | 0.33% | 8,024,565 | +0 | +0.00% | 0.30% | 2022-12-31 | $11 | ~$11 | -0.77% | |
| 8 | EDGEWISE THERAPEUTICS INC EWTX | $67.4M | 0.25% | 6,159,146 | +0 | +0.00% | 0.14% | 2021-03-31 | $11 | ~$19 | -42.12% | |
| 9 | AMYLYX PHARMACEUTICALS INC AMLX | $43.6M | 0.16% | 2,962,555 | +0 | +0.00% | 0.22% | 2022-03-31 | $15 | ~$13 | +14.55% | |
| 10 | DAY ONE BIOPHARMACEUTICALS I DAWNGBX | $37.4M | 0.14% | 2,558,563 | +0 | +0.00% | 0.13% | 2021-06-30 | $15 | ~$17 | -13.01% | |
| 11 | VERASTEM INC VSTM | $20.0M | 0.07% | 2,456,292 | +0 | +0.00% | 0.08% | 2023-06-30 | $8 | ~$8 | +8.24% | |
| 12 | LIANBIO LIANY | $15.9M | 0.06% | 3,564,173 | +0 | +0.00% | 0.02% | 2021-12-31 | $4 | ~$4 | +4.14% | |
| 13 | PEPGEN INC PEPG | $10.1M | 0.04% | 1,482,434 | +0 | +0.00% | 0.03% | 2022-06-30 | $7 | ~$10 | -31.52% | |
| 14 | RALLYBIO CORP | $10.0M | 0.04% | 4,194,777 | +0 | +0.00% | 0.06% | 2021-09-30 | $2 | ~$18 | -86.40% | |
| 15 | TREVI THERAPEUTICS INC TRVI | $5.9M | 0.02% | 4,400,000 | +0 | +0.00% | 0.04% | 2022-09-30 | $1 | ~$2 | -12.99% | |
| 16 | KINNATE BIOPHARMA INC KNTEUSD | $4.3M | 0.02% | 1,820,462 | +0 | +0.00% | 0.01% | 2020-12-31 | $2 | ~$40 | -94.04% |