Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2022-12-31
$19.98B
Positions
76
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 | ROIVANT SCIENCES LTD | $705.0M | 3.53% | 88,238,700 | +0 | +0.00% | 1.31% | 2021-12-31 | $8 | ~$10 | -20.73% | |
| 2 | API GROUP CORP APG | $636.1M | 3.18% | 33,819,567 | +0 | +0.00% | 2.07% | 2020-06-30 | $19 | ~$12 | +53.76% | |
| 3 | ADAPTIVE BIOTECHNOLOGIES COR ADPT | $229.2M | 1.15% | 29,993,708 | +0 | +0.00% | 0.99% | 2019-06-30 | $8 | ~$48 | -84.18% | |
| 4 | BRIDGEBIO PHARMA INC BBIO | $202.9M | 1.02% | 26,620,991 | +0 | +0.00% | 1.22% | 2019-06-30 | $8 | ~$27 | -71.75% | |
| 5 | 4D MOLECULAR THERAPEUTICS IN FDMT | $87.5M | 0.44% | 3,937,914 | +0 | +0.00% | 0.15% | 2020-12-31 | $22 | ~$41 | -46.42% | |
| 6 | GUARDANT HEALTH INC GH 0 11/15/27 | $75.2M | 0.38% | 120,000,000 | +0 | +0.00% | 0.41% | 2021-12-31 | $1 | ~$1 | -38.33% | |
| 7 | EDGEWISE THERAPEUTICS INC EWTX | $39.4M | 0.20% | 4,409,146 | +0 | +0.00% | 0.20% | 2021-03-31 | $9 | ~$23 | -61.95% | |
| 8 | DAY ONE BIOPHARMACEUTICALS I DAWNGBX | $33.5M | 0.17% | 1,558,563 | +0 | +0.00% | 0.14% | 2021-06-30 | $22 | ~$19 | +10.75% | |
| 9 | RALLYBIO CORP | $27.6M | 0.14% | 4,194,777 | +0 | +0.00% | 0.28% | 2021-09-30 | $7 | ~$18 | -62.63% | |
| 10 | KINNATE BIOPHARMA INC KNTEUSD | $11.1M | 0.06% | 1,820,462 | +0 | +0.00% | 0.10% | 2020-12-31 | $6 | ~$40 | -84.67% | |
| 11 | TREVI THERAPEUTICS INC TRVI | $8.5M | 0.04% | 4,400,000 | +0 | +0.00% | 0.03% | 2022-09-30 | $2 | ~$2 | +25.32% | |
| 12 | LIANBIO LIANY | $5.8M | 0.03% | 3,564,173 | +0 | +0.00% | 0.03% | 2021-12-31 | $2 | ~$4 | -61.79% | |
| 13 | VERASTEM INC | $3.7M | 0.02% | 9,224,000 | +0 | +0.00% | 0.04% | 2022-06-30 | $0 | ~$1 | -65.30% | |
| 14 | TALARIS THERAPEUTICS INC | $3.4M | 0.02% | 3,289,617 | +0 | +0.00% | 0.04% | 2021-06-30 | $1 | ~$15 | -93.06% |