RA Capital Nexus Fund III, L.P. (CIK 0001883840)

Latest company ownership

Role: Director
Shares held
2,551,263
Last filed at
Jul 1, 2024
Confidence Score
27.5
2025Q4
Confidence Score History
2024Q2 2025Q4
Shares held
1,172,334
Last filed at
Sep 18, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2024Q3 2025Q4
Role: Director
Shares held
1,130,343
Last filed at
Oct 30, 2024
Confidence Score
50.1
2025Q4
Confidence Score History
2024Q4 2025Q4
Shares held
192,847
Last filed at
Feb 16, 2023
Confidence Score
60.0
2025Q4
Confidence Score History
2023Q1 2025Q4
Shares held
159,033
Last filed at
Nov 24, 2025
Confidence Score
13.1
2025Q4
Confidence Score History
2025Q1 2025Q4
Shares held
53,673
Last filed at
Jul 24, 2024
Confidence Score
50.0
2025Q4
Confidence Score History
2024Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 11, 2025 Dec 15, 2025 Climb Bio, Inc. Director Buy 20.0 -20,125,439 -85.56% $754.7K
Nov 20, 2025 Nov 24, 2025 Sionna Therapeutics, Inc. Director Sell 42.5 -30,316 -0.10% $1.2M
Nov 17, 2025 Nov 19, 2025 Sionna Therapeutics, Inc. Director Sell 33.8 -136,351 -0.23% $5.5M
Oct 24, 2025 Oct 28, 2025 Sionna Therapeutics, Inc. Director Sell 15.0 -373,610 -1.82% $14.8M
Sep 4, 2025 Sep 8, 2025 Mineralys Therapeutics, Inc. Director Buy 100.0 +1,176,470 27.49% $30M
Mar 13, 2025 Mar 17, 2025 Mineralys Therapeutics, Inc. Director Buy 100.0 +1,296,296 43.45% $17.5M
Feb 10, 2025 Feb 10, 2025 Sionna Therapeutics, Inc. Director Buy 100.0 +1,125,000 13.85% $20.3M
Oct 28, 2024 Oct 30, 2024 Septerna, Inc. Director Buy 100.0 +4,170,000 147.57% $75.1M
Sep 16, 2024 Sep 18, 2024 Bicara Therapeutics Inc. Director Buy 100.0 +1,833,000 35.78% $33M
Jul 22, 2024 Jul 24, 2024 Artiva Biotherapeutics, Inc. Director Buy 100.0 +8,795,020 459.88% $104.7M
Jun 27, 2024 Jul 1, 2024 Climb Bio, Inc. Director Buy 100.0 +18,268,418 76.18% $50M
Feb 14, 2023 Feb 16, 2023 Mineralys Therapeutics, Inc. Director Buy 100.0 +1,250,000 64.82% $20M