Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2024-03-31
$26.86B
Positions
83
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 | $776.7M | 2.89% | 25,120,991 | +0 | +0.00% | 3.71% | 2019-06-30 | $31 | ~$27 | +14.65% | |
| 2 | ROIVANT SCIENCES LTD | $731.1M | 2.72% | 69,368,961 | +0 | +0.00% | 2.85% | 2021-12-31 | $11 | ~$10 | +4.56% | |
| 3 | INHIBRX INC INBXUSD | $250.0M | 0.93% | 7,150,826 | +0 | +0.00% | 1.00% | 2020-09-30 | $35 | ~$19 | +84.86% | |
| 4 | NEWAMSTERDAM PHARMA COMPANY | $189.8M | 0.71% | 8,024,565 | +0 | +0.00% | 0.33% | 2022-12-31 | $24 | ~$11 | +110.11% | |
| 5 | GINKGO BIOWORKS HOLDINGS INC DNA4EUR | $166.0M | 0.62% | 143,085,126 | +0 | +0.00% | 0.89% | 2021-09-30 | $1 | ~$3 | -62.50% | |
| 6 | ADAPTIVE BIOTECHNOLOGIES COR ADPT | $96.3M | 0.36% | 29,993,708 | +0 | +0.00% | 0.54% | 2019-06-30 | $3 | ~$48 | -93.35% | |
| 7 | DAY ONE BIOPHARMACEUTICALS I DAWNGBX | $42.3M | 0.16% | 2,558,563 | +0 | +0.00% | 0.14% | 2021-06-30 | $17 | ~$17 | -1.57% | |
| 8 | VERASTEM INC VSTM | $29.0M | 0.11% | 2,456,292 | +0 | +0.00% | 0.07% | 2023-06-30 | $12 | ~$8 | +56.91% | |
| 9 | CAZOO GROUP LTD | $25.7M | 0.10% | 2,142,728 | +0 | +0.00% | 0.07% | 2023-12-31 | $12 | ~$10 | +26.32% | |
| 10 | PEPGEN INC PEPG | $21.8M | 0.08% | 1,482,434 | +0 | +0.00% | 0.04% | 2022-06-30 | $15 | ~$10 | +48.03% | |
| 11 | TREVI THERAPEUTICS INC TRVI | $15.2M | 0.06% | 4,400,000 | +0 | +0.00% | 0.02% | 2022-09-30 | $3 | ~$2 | +124.03% | |
| 12 | RALLYBIO CORP | $7.8M | 0.03% | 4,194,777 | +0 | +0.00% | 0.04% | 2021-09-30 | $2 | ~$18 | -89.48% | |
| 13 | KINNATE BIOPHARMA INC KNTEUSD | $4.8M | 0.02% | 1,820,462 | +0 | +0.00% | 0.02% | 2020-12-31 | $3 | ~$40 | -93.31% |