2026 Q1 Portfolio Activity
In 2026 Q1, RA CAPITAL MANAGEMENT, L.P. maintained a portfolio of 95 distinct positions. The most significant new addition was SPYGLASS PHARMA INC, now representing 2.20% of the total fund value. They heavily accumulated shares in VAXCYTE INC, increasing the position by 7.0%. Conversely, RA CAPITAL MANAGEMENT, L.P. completely exited their position in CIDARA THERAPEUTICS INC.
Position History
hover any row below to update
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Total Positions
95
Quarter
2026 Q1
Top Holding
ASND (24.9%)
Top 10 Concentration
61.3%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 95
RA CAPITAL MANAGEMENT, L.P. Full Holdings List — 2026 Q1
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
ASND
ASCENDIS PHARMA...
|
Healthcare | 24.92% | 22.46% |
#1
Prev: #1
|
7.0 |
—
|
no change | no change |
P
S
|
10,281,496 | $2,351,686,580 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
PCVX
VAXCYTE INC
|
Healthcare | 7.07% | 5.07% |
#2
3
Prev: #5
|
6.3 |
—
|
750,000 | 7.0% |
P
S
|
11,474,599 | $666,788,948 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
RYTM
RHYTHM PHARMACE...
|
Healthcare | 6.14% | 7.31% |
#3
Prev: #3
|
4.5 |
—
|
no change | no change |
P
S
|
6,666,837 | $579,814,814 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
TYRA
TYRA BIOSCIENCE...
|
Healthcare | 4.95% | 3.29% |
#4
4
Prev: #8
|
3.5 |
—
|
no change | no change |
P
S
|
12,198,625 | $467,207,338 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SION
SIONNA THERAPEU...
|
Healthcare | 4.21% | 4.17% |
#5
1
Prev: #6
|
3.2 |
—
|
no change | no change |
P
S
|
9,905,045 | $397,093,254 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
EWTX
EDGEWISE THERAP...
|
Healthcare | 3.48% | 2.65% |
#6
5
Prev: #11
|
2.4 |
—
|
no change | no change |
P
S
|
10,428,437 | $328,495,766 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
NAMS
NEWAMSTERDAM PH...
|
Healthcare | 3.24% | 3.43% |
#7
Prev: #7
|
2.3 |
—
|
no change | no change |
P
S
|
9,550,191 | $305,701,614 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
NUVL
NUVALENT INC-A
|
Healthcare | 2.75% | 1.94% |
#8
5
Prev: #13
|
3.6 |
—
|
654,088 | 34.8% |
P
S
|
2,534,145 | $259,623,155 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
DNTH
DIANTHUS THERAP...
|
Healthcare | 2.32% | 0.68% |
#9
21
Prev: #30
|
3.9 |
—
|
1,000,000 | 62.0% |
P
S
|
2,611,733 | $219,176,633 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
MLYS
MINERALYS THERA...
|
Healthcare | 2.21% | 2.72% |
#10
Prev: #10
|
2.9 |
—
|
369,000 | 5.0% |
P
S
|
7,692,750 | $208,396,598 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
SPYGLASS PHARMA...
|
|
Unknown | 2.20% | — |
#11
Prev: #—
|
4.4 |
—
|
8,021,117 | — |
NEW
|
8,021,117 | $207,827,141 | — | 13F Filing | 2026-03-31 | 2026-05-15 | ||
|
WVE
WAVE LIFE SCIEN...
|
Healthcare | 2.07% | 3.17% |
#12
3
Prev: #9
|
3.3 |
—
|
8,772,496 | 48.2% |
P
S
|
26,975,505 | $195,572,411 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SEPN
SEPTERNA INC
|
Healthcare | 1.78% | 2.00% |
#13
1
Prev: #12
|
1.7 |
—
|
no change | no change |
P
S
|
6,995,858 | $168,110,468 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
IRON
DISC MEDICINE I...
|
Healthcare | 1.66% | 1.61% |
#14
Prev: #14
|
3.2 |
—
|
474,089 | 24.0% |
P
S
|
2,450,221 | $156,667,131 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
JANX
JANUX THERAPEUT...
|
Healthcare | 1.65% | 1.58% |
#15
Prev: #15
|
1.7 |
—
|
no change | no change |
P
S
|
11,189,693 | $155,536,733 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
BCRX
BIOCRYST PHARMA...
|
Healthcare | 1.60% | 1.26% |
#16
3
Prev: #19
|
1.6 |
—
|
no change | no change |
P
S
|
15,827,186 | $150,674,811 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
BCAX
BICARA THERAPEU...
|
Healthcare | 1.53% | 1.20% |
#17
3
Prev: #20
|
1.1 |
—
|
300,000 | 4.3% |
P
S
|
7,255,993 | $144,321,701 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
PRAX
PRAXIS PRECISIO...
|
Healthcare | 1.28% | 1.13% |
#18
3
Prev: #21
|
1.5 |
—
|
no change | no change |
P
S
|
373,787 | $120,430,434 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
GHRS
GH RESEARCH PLC
|
Healthcare | 1.14% | 1.00% |
#19
3
Prev: #22
|
1.5 |
—
|
no change | no change |
P
S
|
7,676,697 | $107,934,360 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ZLAB
ZAI LAB LTD-ADR
|
Healthcare | 1.14% | — |
#20
Prev: #—
|
4.0 |
—
|
5,707,262 | — |
NEW
|
5,707,262 | $107,353,598 | 2024 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
TSHA
TAYSHA GENE THE...
|
Healthcare | 1.12% | 1.33% |
#21
4
Prev: #17
|
1.4 |
—
|
no change | no change |
P
S
|
23,555,648 | $105,293,747 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
VOR
VOR BIOPHARMA I...
|
Healthcare | 1.02% | 0.72% |
#22
4
Prev: #26
|
1.4 |
—
|
no change | no change |
P
S
|
5,404,998 | $96,425,164 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
GERN
GERON CORP
|
Healthcare | 1.01% | 0.86% |
#23
Prev: #23
|
1.4 |
—
|
no change | no change |
P
S
|
63,771,366 | $95,019,335 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SPRY
ARS PHARMACEUTI...
|
Healthcare | 0.92% | 1.30% |
#24
6
Prev: #18
|
1.4 |
—
|
no change | no change |
P
S
|
10,860,977 | $87,213,645 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SRPT
SAREPTA THERAPE...
|
Healthcare | 0.90% | — |
#25
Prev: #—
|
3.9 |
—
|
3,902,596 | — |
NEW
|
3,902,596 | $84,920,489 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SYRE
SPYRE THERAPEUT...
|
Healthcare | 0.87% | 0.54% |
#26
8
Prev: #34
|
1.3 |
—
|
no change | no change |
P
S
|
1,621,620 | $81,794,513 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
EVMN
EVOMMUNE INC
|
Healthcare | 0.85% | 0.61% |
#27
5
Prev: #32
|
0.8 |
—
|
35,868 | 1.0% |
P
S
|
3,494,638 | $80,341,728 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
CLYM
CLIMB BIO INC
|
Healthcare | 0.82% | 0.80% |
#28
3
Prev: #25
|
0.8 |
—
|
7,111 | 0.1% |
P
S
|
11,300,939 | $77,411,432 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
SLDB
SOLID BIOSCIENC...
|
Healthcare | 0.71% | 0.34% |
#29
15
Prev: #44
|
3.3 |
—
|
3,528,555 | 60.7% |
P
S
|
9,339,978 | $67,247,842 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ARTV
ARTIVA BIOTHERA...
|
Healthcare | 0.67% | 0.43% |
#30
11
Prev: #41
|
1.3 |
—
|
no change | no change |
P
S
|
9,853,302 | $63,455,265 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
GLTO
DAMORA THERAPEU...
|
Healthcare | 0.66% | — |
#31
Prev: #—
|
3.8 |
—
|
2,399,310 | — |
NEW
|
2,399,310 | $62,142,129 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
XNCR
XENCOR INC
|
Healthcare | 0.63% | — |
#32
Prev: #—
|
3.8 |
—
|
4,897,237 | — |
NEW
|
4,897,237 | $59,060,678 | 2013 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
LBRX
LB PHARMACEUTIC...
|
Healthcare | 0.58% | 0.50% |
#33
3
Prev: #36
|
1.2 |
—
|
no change | no change |
P
S
|
2,208,604 | $54,464,175 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
JBIO
JADE BIOSCIENCE...
|
Healthcare | 0.55% | 0.58% |
#34
1
Prev: #33
|
1.2 |
—
|
no change | no change |
P
S
|
3,671,083 | $51,578,716 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ABOS
ACUMEN PHARMACE...
|
Healthcare | 0.52% | 0.32% |
#35
10
Prev: #45
|
2.7 |
—
|
6,060,606 | 40.6% |
P
S
|
20,992,669 | $49,542,699 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
FDMT
4D MOLECULAR TH...
|
Healthcare | 0.50% | 0.43% |
#36
3
Prev: #39
|
0.7 |
—
|
-603,432 | -10.7% |
P
S
|
5,049,779 | $47,013,442 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
FULC
FULCRUM THERAPE...
|
Healthcare | 0.49% | 0.70% |
#37
9
Prev: #28
|
1.2 |
—
|
no change | no change |
P
S
|
6,053,960 | $46,433,873 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
CAPR
CAPRICOR THERAP...
|
Healthcare | 0.49% | 0.45% |
#38
Prev: #38
|
1.2 |
—
|
no change | no change |
P
S
|
1,507,844 | $45,838,458 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
IPSC
CENTURY THERAPE...
|
Healthcare | 0.43% | — |
#39
Prev: #—
|
3.7 |
—
|
17,754,430 | — |
NEW
|
17,754,430 | $40,125,012 | 2021 Q2 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
OLMA
OLEMA PHARMACEU...
|
Healthcare | 0.41% | 0.67% |
#40
9
Prev: #31
|
1.2 |
—
|
no change | no change |
P
S
|
2,600,000 | $38,766,000 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
LENZ
LENZ THERAPEUTI...
|
Healthcare | 0.41% | 0.68% |
#41
12
Prev: #29
|
1.2 |
—
|
no change | no change |
P
S
|
4,178,823 | $38,236,230 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
MNPR
MONOPAR THERAPE...
|
Healthcare | 0.39% | 0.45% |
#42
5
Prev: #37
|
1.2 |
—
|
no change | no change |
P
S
|
667,207 | $36,556,272 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
PEPG
PEPGEN INC
|
Healthcare | 0.38% | 1.34% |
#43
27
Prev: #16
|
1.2 |
—
|
no change | no change |
P
S
|
20,064,545 | $35,514,245 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
DSGN
DESIGN THERAPEU...
|
Healthcare | 0.34% | 0.14% |
#44
12
Prev: #56
|
3.1 |
—
|
1,511,592 | 103.4% |
P
S
|
2,972,973 | $31,632,433 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
MIRM
MIRUM PHARMACEU...
|
Healthcare | 0.31% | — |
#45
Prev: #—
|
3.6 |
—
|
318,554 | — |
NEW
|
318,554 | $29,428,019 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
BIOA
BIOAGE LABS INC
|
Healthcare | 0.31% | — |
#46
Prev: #—
|
3.6 |
—
|
1,650,648 | — |
NEW
|
1,650,648 | $28,869,834 | 2024 Q3 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
LXEO
LEXEO THERAPEUT...
|
Healthcare | 0.30% | 0.51% |
#47
12
Prev: #35
|
1.1 |
—
|
no change | no change |
P
S
|
5,000,000 | $28,700,000 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
ASMB
ASSEMBLY BIOSCI...
|
Healthcare | 0.30% | 0.36% |
#48
5
Prev: #43
|
1.1 |
—
|
no change | no change |
P
S
|
1,020,410 | $28,316,378 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
RZLT
REZOLUTE INC
|
Healthcare | 0.30% | 0.22% |
#49
1
Prev: #48
|
1.1 |
—
|
no change | no change |
P
S
|
9,180,000 | $27,999,000 | 2007 Q4 | 13F Filing | 2026-03-31 | 2026-05-15 | |||
|
N/A
AKTIS ONCOLOGY ...
|
|
Unknown | 0.28% | — |
#50
Prev: #—
|
3.6 |
—
|
1,503,084 | — |
NEW
|
1,503,084 | $26,890,173 | — | 13F Filing | 2026-03-31 | 2026-05-15 |
Showing 1-50 of 95 holdings