13FBOX
RA CAPITAL MANAGEMENT, L.P. · 13F Holdings
Options Calculator Rankings

RA CAPITAL MANAGEMENT, L.P.

No.534
Latest AUM (Q2 2026)
$11.51B
QoQ Change Q1 2026
+$2.07B+21.9%
Holdings
84
New Buys
16
Adds
10
Reduces
10
Exits
17
Unchanged
48
Holdings Value Trend
Holdings by Sector
Stock Ownership TrendPortfolio %Prev Q %Q2 2026 ValueQ2 2026 SharesPrev Q ValuePrev Q SharesShares ChangeAction
AASCENDIS PHARMA A/S SPONSORED ADRASND
23.83%24.92%$2.74B10.3M$2.35B10.3M00.00%Unchanged
PPARABILIS MEDICINES INCPBLS
6.88%$791.9M28.9M$00+28.9MNew Buy
RHYTHM PHARMACEUTICALS INCRYTM
6.43%6.14%$740.2M6.7M$579.8M6.7M00.00%Unchanged
VAXCYTE INCPCVX
5.8%7.07%$667.0M11.5M$666.8M11.5M00.00%Unchanged
SSIONNA THERAPEUTICS INCSION
3.79%4.21%$435.7M9.9M$397.1M9.9M00.00%Unchanged
TTYRA BIOSCIENCES INCTYRA
3.39%4.95%$389.6M12.2M$467.2M12.2M00.00%Unchanged
EDGEWISE THERAPEUTICS INCEWTX
2.96%3.48%$341.0M8.4M$328.5M10.4M-2.0M-19.52%Reduce
NNEWAMSTERDAM PHARMA COMPANYNAMS
2.81%3.24%$323.7M9.6M$305.7M9.6M00.00%Unchanged
HHEMAB THERAPEUTICS HLDGS INCCOAG
2.49%$286.8M7.8M$00+7.8MNew Buy
SSEPTERNA INCSEPN
2.04%1.78%$234.3M7.0M$168.1M7.0M00.00%Unchanged
BBICARA THERAPEUTICS INCBCAX
1.87%1.53%$215.4M7.3M$144.3M7.3M00.00%Unchanged
MINERALYS THERAPEUTICS INCMLYS
1.8%2.21%$207.6M7.7M$208.4M7.7M00.00%Unchanged
GH RESEARCH PLC ORDINARY SHARESGHRS
1.78%1.14%$205.3M7.6M$107.9M7.7M-39,884-0.52%Reduce
DISC MEDICINE INCIRON
1.56%1.66%$179.2M2.5M$156.7M2.5M00.00%Unchanged
SSPYGLASS PHARMA INCSGP
1.55%2.2%$178.6M8.0M$207.8M8.0M00.00%Unchanged
AARTIVA BIOTHERAPEUTICS INCARTV
1.51%0.67%$174.2M18.0M$63.5M9.9M+8.1M+82.23%Add
JANUX THERAPEUTICS INCJANX
1.49%1.65%$171.9M11.2M$155.5M11.2M00.00%Unchanged
TAYSHA GENE THERAPIES INCTSHA
1.39%1.12%$160.4M23.6M$105.3M23.6M00.00%Unchanged
BIOCRYST PHARMACEUTICALS INCBCRX
1.38%1.6%$158.3M15.8M$150.7M15.8M00.00%Unchanged
WAVE LIFE SCIENCES LTDWVE
1.36%2.07%$156.7M27.0M$195.6M27.0M00.00%Unchanged
NNUVALENT INCNUVL
1.34%2.75%$153.9M1.2M$259.6M2.5M-1.3M-50.81%Reduce
ABIVAX SAABVX
1.31%$150.9M1.1M$00+1.1MNew Buy
OORUKA THERAPEUTICS INC COMORKA
1.29%$148.0M1.6M$00+1.6MNew Buy
CCLIMB BIO INC COMCLYM
1.28%0.82%$147.4M11.3M$77.4M11.3M00.00%Unchanged
SOLID BIOSCIENCES INCSLDB
1.04%0.71%$120.2M12.0M$67.2M9.3M+2.7M+28.87%Add
ZZAI LAB LIMITED ADS EACH REP 10 ORD SHSZLAB
0.95%1.14%$109.1M5.7M$107.4M5.7M+36,271+0.64%Add
AARS PHARMACEUTICALS INCSPRY
0.76%0.92%$87.0M10.9M$87.2M10.9M00.00%Unchanged
XXENCOR INCXNCR
0.74%0.63%$84.9M5.3M$59.1M4.9M+377,037+7.70%Add
JADE BIOSCIENCES INCJBIO
0.71%0.55%$81.6M3.7M$51.6M3.7M00.00%Unchanged
IINTELLIA THERAPEUTICS INCNTLA
0.67%$76.6M4.5M$00+4.5MNew Buy
LLB PHARMACEUTICALS INCLBRX
0.62%0.58%$71.7M2.2M$54.5M2.2M00.00%Unchanged
DDEFINIUM THERAPEUTICS INCDFTX
0.61%$70.6M1.5M$00+1.5MNew Buy
AACLARIS THERAPEUTICS INC COMACRS
0.58%0.27%$67.3M12.7M$25.5M6.8M+5.9M+86.99%Add
4D MOLECULAR THERAPEUTICS INFDMT
0.58%0.5%$67.2M5.0M$47.0M5.0M00.00%Unchanged
SSANA BIOTECHNOLOGY INCSANA
0.57%$65.4M18.8M$00+18.8MNew Buy
DDAMORA THERAPEUTICS INCDMRA
0.54%0.66%$62.4M2.4M$62.1M2.4M+392+0.02%Add
MMONOPAR THERAPEUTICS INCMNPR
0.54%0.39%$61.8M667,207$36.6M667,20700.00%Unchanged
AACUMEN PHARMACEUTICALS INCABOS
0.49%0.52%$56.1M21.0M$49.5M21.0M00.00%Unchanged
GGERON CORPGERN
0.48%1.01%$54.8M42.8M$95.0M63.8M-21.0M-32.87%Reduce
REZOLUTE INCRZLT
0.43%0.3%$49.1M9.4M$28.0M9.2M+265,039+2.89%Add
EEVOMMUNE INCEVMN
0.4%0.85%$46.4M3.5M$80.3M3.5M00.00%Unchanged
VVOR BIOPHARMA INCVOR
0.38%1.02%$44.2M2.4M$96.4M5.4M-3.0M-55.56%Reduce
CCENTURY THERAPEUTICS INC COMIPSC
0.38%0.43%$43.5M17.8M$40.1M17.8M00.00%Unchanged
AAKTIS ONCOLOGY INCAKTS
0.37%0.28%$42.4M1.3M$26.9M1.5M-188,679-12.55%Reduce
BBIOAGE LABS INCBIOA
0.36%0.31%$41.0M1.7M$28.9M1.7M+21,000+1.27%Add
CC4 THERAPEUTICS INC COM STKCCCC
0.32%0.22%$37.4M8.0M$21.0M8.0M00.00%Unchanged
MMIRUM PHARMACEUTICALS INCMIRM
0.32%0.31%$37.3M318,554$29.4M318,55400.00%Unchanged
CCAPRICOR THERAPEUTICS INC COM NEWCAPR
0.32%0.49%$36.3M1.5M$45.8M1.5M00.00%Unchanged
PPEPGEN INCPEPG
0.31%0.38%$36.1M20.1M$35.5M20.1M00.00%Unchanged
PPRELUDE THERAPEUTICS INC COMPRLD
0.3%$34.5M6.5M$00+6.5MNew Buy

🧭 Institutional Sector Flow Heatmap

Net Outflow Net Inflow