Atlas Venture Life Science Advisors, LLC Portfolio Holdings

Atlas Venture Life Science Advisors, LLC

  • $443 Million
  • Q3 2025

Atlas Venture Life Science Advisors, LLC has filed its 13F form on November 13, 2025 for Q3 2025 where it was disclosed a total value porftolio of $443 Million distributed in 9 stocks.

Among their holdings, we can observe that their the top five positions include companies like: Kymera Therapeutics, Inc. with a value of $277M, Dyne Therapeutics, Inc. with a value of $116M, Day One Biopharmaceuticals, Inc. with a value of $45.3M, Generation Bio Co. with a value of $5.07M, and Disc Medicine, Inc. with a value of $0.

Examining the 13F form we can see an decrease of $11.6M in the current position value, from $455M to 443M.

Below you can find more details about Atlas Venture Life Science Advisors, LLC portfolio as well as his latest detailed transactions.

Portfolio value $443 Million
Healthcare: $443 Million

Stock Holdings Table

Stock Market Cap. Holding Value (Reported) # of Shares. Last Trade Trade History
$3.55B
$277 Million 62.55% of portfolio
4,896,462
Q3 2024 Reduced 8.48%
$975M
$116 Million 26.07% of portfolio
9,130,465
Q1 2025 Added 13.86%
$646M
$45.3 Million 10.23% of portfolio
6,430,257
Q1 2024 Reduced 15.48%
$320M
$5.07 Million 1.14% of portfolio
827,946
Q3 2025 Reduced 90.0%
Disc Medicine, Inc.
-
$0 0.0% of portfolio
-
Q3 2025 Reduced 10.14%
Imagene Bio, Inc.
-
$0 0.0% of portfolio
-
Q3 2025 New
Korro Bio, Inc.
-
$0 0.0% of portfolio
-
Q2 2024 Added 1.6%
Q32 Bio, Inc.
-
$0 0.0% of portfolio
-
Q1 2024 New
Sionna Therapeutics, Inc.
-
$0 0.0% of portfolio
-
Q3 2025 Reduced 2.12%

Summary

  • Portfolio
  • No. of Stocks 9
  • Current Value $443 Million
  • Prior Value $455 Million
  • Filing
  • Period Q3 2025
  • Filing Date November 13, 2025
  • Form Type 13F-HR
  • Activity in Q3 2025
  • New Purchases 1 stocks
  • Additional Purchases 0 stocks
  • Sold out of 0 stocks
  • Reduced holdings in 3 stocks
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