Latest Atlas Venture Life Science Advisors, LLC Stock Portfolio
Atlas Venture Life Science Advisors, LLC Performance:
2025 Q4: 26.64%YTD: 35.87%2024: 8.52%
Performance for 2025 Q4 is 26.64%, and YTD is 35.87%, and 2024 is 8.52%.
About Atlas Venture Life Science Advisors, LLC and 13F Hedge Fund Stock Holdings
On 2026-02-13, the fund reported it's updated stock portfolio. In the 13F Holdings report, Atlas Venture Life Science Advisors, LLC reported an equity portfolio of $865.2 Millions as of 31 Dec, 2025.
The top stock holdings of Atlas Venture Life Science Advisors, LLC are KYMR, DYN, . The fund has invested 41.9% of it's portfolio in KYMERA THERAPEUTICS, INC. and 20.6% of portfolio in DYNE THERAPEUTICS, INC.
The fund managers got completely rid off GENERATION BIO, CO. (GBIO) and IMAGENEBIO, INC. (IKNA) stocks. They significantly reduced their stock positions in DISC MEDICINE, INC., KYMERA THERAPEUTICS, INC. (KYMR) and DAY ONE BIOPHARMACEUTICALS, INC. (DAWN). Atlas Venture Life Science Advisors, LLC opened new stock positions in GENERATION BIO, CO. (GBIO).
The top stock holdings of Atlas Venture Life Science Advisors, LLC are KYMR, DYN, . The fund has invested 41.9% of it's portfolio in KYMERA THERAPEUTICS, INC. and 20.6% of portfolio in DYNE THERAPEUTICS, INC.
The fund managers got completely rid off GENERATION BIO, CO. (GBIO) and IMAGENEBIO, INC. (IKNA) stocks. They significantly reduced their stock positions in DISC MEDICINE, INC., KYMERA THERAPEUTICS, INC. (KYMR) and DAY ONE BIOPHARMACEUTICALS, INC. (DAWN). Atlas Venture Life Science Advisors, LLC opened new stock positions in GENERATION BIO, CO. (GBIO).
Atlas Venture Life Science Advisors, LLC Annual Return Estimates Vs S&P 500
Our best estimate is that Atlas Venture Life Science Advisors, LLC made a return of 26.64% in the last quarter. In trailing 12 months, it's portfolio return was 35.87%.
- Performance
- S&P 500
New Buys
| Ticker | $ Bought |
|---|---|
| generation bio, co. | 4,702,730 |
New stocks bought by Atlas Venture Life Science Advisors, LLC
Additions
Reductions
| Ticker | % Reduced |
|---|---|
| disc medicine, inc. | -29.34 |
| sionna therapeutics, inc. | -17.15 |
| kymera therapeutics, inc. | -4.83 |
| day one biopharmaceuticals, inc. | -0.28 |
Atlas Venture Life Science Advisors, LLC reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| generation bio, co. | -5,067,030 |
| imagenebio, inc. | -3,079,180 |
Atlas Venture Life Science Advisors, LLC got rid off the above stocks
Sector Distribution
Atlas Venture Life Science Advisors, LLC has about 70% of it's holdings in Healthcare sector.
- Healthcare
- Others
| Sector | % |
|---|---|
| Healthcare | 70 |
| Others | 30 |
Market Cap. Distribution
Atlas Venture Life Science Advisors, LLC has about 0% of it's portfolio invested in the large-cap and mega-cap stocks.
- MID-CAP
- UNALLOCATED
- SMALL-CAP
| Category | % |
|---|---|
| MID-CAP | 62.6 |
| UNALLOCATED | 30 |
| SMALL-CAP | 6.9 |
Stocks belong to which Index?
About 70% of the stocks held by Atlas Venture Life Science Advisors, LLC either belong to S&P 500 or RUSSELL 2000 index.
- RUSSELL 2000
- Others
| Index | % |
|---|---|
| RUSSELL 2000 | 70 |
| Others | 30 |
Atlas Venture Life Science Advisors, LLC Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of Atlas Venture Life Science Advisors, LLC
Atlas Venture Life Science Advisors, LLC has 8 stocks in it's portfolio. proved to be the most loss making stock for the portfolio. KYMR was the most profitable stock for Atlas Venture Life Science Advisors, LLC last quarter.
Last Reported on: 13 Feb, 2026| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| DAWN | day one biopharmaceuticals, inc. | 6.91 | 6,412,560 | 59,765,100 | reduced | -0.28 | ||
| DYN | dyne therapeutics, inc. | 20.64 | 9,130,460 | 178,592,000 | unchanged | 0.00 | ||
| GBIO | generation bio, co. | 0.54 | 827,946 | 4,702,730 | new | |||
| GBIO | generation bio, co. | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| IKNA | imagenebio, inc. | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| KYMR | kymera therapeutics, inc. | 41.91 | 4,659,870 | 362,585,000 | reduced | -4.83 | ||
| sionna therapeutics, inc. | 14.24 | 2,995,600 | 123,239,000 | reduced | -17.15 | |||
| disc medicine, inc. | 13.89 | 1,513,880 | 120,217,000 | reduced | -29.34 | |||
| korro bio, inc. | 1.05 | 1,137,150 | 9,108,560 | unchanged | 0.00 | |||
| q32 bio, inc. | 0.80 | 2,092,110 | 6,945,790 | unchanged | 0.00 | |||