RP
Insider
RA Capital Nexus Fund III, L.P.
DirectorRA Capital Nexus Fund III, L.P. (Director) filed 1 Form 4 report as a reporting entity in the trailing twelve months (0 purchases, 1 sale), most often in Mineralys Therapeutics, Inc. (MLYS). The largest single filing was $14.8M of SION (373,610 sh across 8 lots, as filed), executed Oct 24 2025.
Add to watchlistReturn, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$14.8M
shares × price, as filed
Last traded
Oct 28 2025
Filed Oct 28 2025
Median ADV $10.0M across their filed names
Open performance→Volume by month
Buys $17.5M
Sells $14.8M
Shares × price, as filed · by filing month · past 24 months
Sectors filed on
Healthcare
1 filing
Sector per market data · by filing · past 12 months
Most traded names
MLYS
Mineralys Therapeutics, Inc.
MLYS · 1 buy · 0 sells
1 filing
SIONRecent filings
SIONSALE
Sionna Therapeutics, Inc.
View filing →
$14.8M373,610 sh across 8 lots
Exec Oct 24 2025
Filed Oct 28 2025 · 5:30 PM ET MLYSPURCHASE Mineralys Therapeutics, Inc. View filing → $17.5M
1,296,296 sh × $13.50
Exec Mar 13 2025
Filed Mar 17 2025 · 5:30 PM ET BCAXPURCHASE Bicara Therapeutics Inc. View filing → $33.0M
1,833,000 sh across 2 lots
Exec Sep 16 2024
Filed Sep 18 2024 · 5:30 PM ET