Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2023-06-30
$24.43B
Positions
86
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 | $457.9M | 1.87% | 26,620,991 | +0 | +0.00% | 2.07% | 2019-06-30 | $17 | ~$27 | -36.23% | |
| 2 | GINKGO BIOWORKS HOLDINGS INC DNA4EUR | $266.1M | 1.09% | 143,085,126 | +0 | +0.00% | 0.89% | 2021-09-30 | $2 | ~$3 | -39.87% | |
| 3 | ADAPTIVE BIOTECHNOLOGIES COR ADPT | $201.3M | 0.82% | 29,993,708 | +0 | +0.00% | 1.24% | 2019-06-30 | $7 | ~$48 | -86.11% | |
| 4 | INHIBRX INC INBXUSD | $172.4M | 0.71% | 6,639,199 | +0 | +0.00% | 0.59% | 2020-09-30 | $26 | ~$19 | +39.11% | |
| 5 | GUARDANT HEALTH INC GH 0 11/15/27 | $86.4M | 0.35% | 120,000,000 | +0 | +0.00% | 0.38% | 2021-12-31 | $1 | ~$1 | -29.18% | |
| 6 | AMYLYX PHARMACEUTICALS INC AMLX | $63.9M | 0.26% | 2,962,555 | +0 | +0.00% | 0.41% | 2022-03-31 | $22 | ~$13 | +67.86% | |
| 7 | PHARVARIS N V | $50.8M | 0.21% | 3,231,923 | +0 | +0.00% | 0.12% | 2021-03-31 | $16 | ~$24 | -33.18% | |
| 8 | RALLYBIO CORP | $23.7M | 0.10% | 4,194,777 | +0 | +0.00% | 0.11% | 2021-09-30 | $6 | ~$18 | -67.80% | |
| 9 | TREVI THERAPEUTICS INC TRVI | $10.5M | 0.04% | 4,400,000 | +0 | +0.00% | 0.04% | 2022-09-30 | $2 | ~$2 | +55.19% | |
| 10 | LIANBIO LIANY | $8.1M | 0.03% | 3,564,173 | +0 | +0.00% | 0.03% | 2021-12-31 | $2 | ~$4 | -46.88% | |
| 11 | KINNATE BIOPHARMA INC KNTEUSD | $5.5M | 0.02% | 1,820,462 | +0 | +0.00% | 0.05% | 2020-12-31 | $3 | ~$40 | -92.38% |