Atlas Venture Opportunity Fund II, L.P. (CIK 0001885327)

Latest company ownership

Shares held
847,388
Last filed at
Mar 5, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2022Q4 2025Q4
Shares held
747,727
Last filed at
Feb 10, 2025
Confidence Score
50.5
2025Q4
Confidence Score History
2025Q1 2025Q4
Role: 10% Owner
Shares held
198,326
Last filed at
Jan 25, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2024Q1 2025Q4
Role: 10% Owner
Shares held
195,074
Last filed at
Apr 23, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2024Q2 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 10, 2025 Feb 10, 2025 Sionna Therapeutics, Inc. 10% Owner Buy 95.0 +60,000 8.02% $1.1M
Apr 22, 2024 Apr 23, 2024 Korro Bio, Inc. 10% Owner Buy 97.5 +17,857 10.08% $1000K
Mar 1, 2024 Mar 5, 2024 Dyne Therapeutics, Inc. 10% Owner Sell 40.0 -46,534 -1.98% $1.4M
Feb 26, 2024 Feb 28, 2024 Dyne Therapeutics, Inc. 10% Owner Sell 30.0 -807,838 -3.86% $19.6M
Feb 21, 2024 Feb 23, 2024 Dyne Therapeutics, Inc. 10% Owner Sell 25.0 -500,789 -5.35% $11.3M
Jan 23, 2024 Jan 25, 2024 Disc Medicine, Inc. 10% Owner Sell 15.0 -150,000 -6.11% $10.1M
Dec 12, 2022 Dec 14, 2022 Dyne Therapeutics, Inc. 10% Owner Buy 100.0 +934,581 10.46% $10M
Jun 17, 2022 Jun 22, 2022 Day One Biopharmaceuticals, Inc. 10% Owner Buy 97.5 +766,667 9.33% $11.5M