Fund detail
Viking Global Investors (Halvorsen)
hedge-fund, active
Quarters
52
2022-06-30
$21.86B
Positions
82
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 | $359.1M | 1.64% | 88,238,700 | +0 | +0.00% | 1.76% | 2021-12-31 | $4 | ~$10 | -59.62% | |
| 2 | ADAPTIVE BIOTECHNOLOGIES COR ADPT | $242.6M | 1.11% | 29,993,708 | +0 | +0.00% | 1.68% | 2019-06-30 | $8 | ~$48 | -83.25% | |
| 3 | BRIDGEBIO PHARMA INC BBIO | $241.7M | 1.11% | 26,620,991 | +0 | +0.00% | 1.09% | 2019-06-30 | $9 | ~$27 | -66.33% | |
| 4 | AMYLYX PHARMACEUTICALS INC AMLX | $138.1M | 0.63% | 7,170,536 | +0 | +0.00% | 0.37% | 2022-03-31 | $19 | ~$13 | +49.88% | |
| 5 | GUARDANT HEALTH INC GH 0 11/15/27 | $74.7M | 0.34% | 120,000,000 | +0 | +0.00% | 0.39% | 2021-12-31 | $1 | ~$1 | -38.77% | |
| 6 | INHIBRX INC INBXUSD | $60.2M | 0.28% | 5,305,866 | +0 | +0.00% | 0.48% | 2020-09-30 | $11 | ~$18 | -36.94% | |
| 7 | ZENTALIS PHARMACEUTICALS INC ZNTL | $56.9M | 0.26% | 2,026,656 | +0 | +0.00% | 0.38% | 2020-06-30 | $28 | ~$48 | -41.48% | |
| 8 | RALLYBIO CORP | $31.7M | 0.14% | 4,194,777 | +0 | +0.00% | 0.12% | 2021-09-30 | $8 | ~$18 | -57.05% | |
| 9 | 4D MOLECULAR THERAPEUTICS IN FDMT | $27.5M | 0.13% | 3,937,914 | +0 | +0.00% | 0.24% | 2020-12-31 | $7 | ~$41 | -83.16% | |
| 10 | KINNATE BIOPHARMA INC KNTEUSD | $23.0M | 0.11% | 1,820,462 | +0 | +0.00% | 0.08% | 2020-12-31 | $13 | ~$40 | -68.30% | |
| 11 | EDGEWISE THERAPEUTICS INC EWTX | $21.7M | 0.10% | 2,727,249 | +0 | +0.00% | 0.11% | 2021-03-31 | $8 | ~$32 | -75.51% | |
| 12 | NUVALENT INC NUVL | $15.1M | 0.07% | 1,110,170 | +0 | +0.00% | 0.06% | 2021-09-30 | $14 | ~$23 | -39.87% | |
| 13 | TALARIS THERAPEUTICS INC | $14.8M | 0.07% | 3,289,617 | +0 | +0.00% | 0.13% | 2021-06-30 | $5 | ~$15 | -69.30% |