AI Portfolio Summary
In 2025 Q4, RA CAPITAL MANAGEMENT, L.P. maintained a portfolio of 88 distinct positions. The most significant new addition to the portfolio was BIOCRYST PHARMACEUTI, which now represents 1.26% of the total fund value. They heavily accumulated shares in RHYTHM PHARMACEUTICA, increasing their position by 17.3%. Conversely, RA CAPITAL MANAGEMENT, L.P. completely exited their position in 89BIO INC.
Total Positions
88
Quarter
2025 Q4
Top Holding
ASND (22.5%)
Top 10 Concentration
65.6%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
1-25 of 88
| 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 | 22.46% | 25.19% |
#1
Prev: #1
|
9.0 | no change | no change |
P
S
|
10,281,496 | $2,192,426,207 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CDTX
CIDARA THERAPEU...
|
Healthcare | 7.62% | 3.97% |
#2
3
Prev: #5
|
3.0 | no change | no change |
P
S
|
3,365,523 | $743,410,375 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
RYTM
RHYTHM PHARMACE...
|
Healthcare | 7.31% | 7.07% |
#3
1
Prev: #2
|
5.0 | 985,478 | 17.3% |
P
S
|
6,666,837 | $713,618,232 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
RNA
AVIDITY BIOSCIE...
|
Healthcare | 6.39% | 4.64% |
#4
Prev: #4
|
2.6 | no change | no change |
P
S
|
8,641,031 | $623,277,566 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
PCVX
VAXCYTE INC
|
Healthcare | 5.07% | 5.31% |
#5
2
Prev: #3
|
2.1 | -1,241,392 | -10.4% |
P
S
|
10,724,599 | $494,832,998 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SION
SIONNA THERAPEU...
|
Healthcare | 4.17% | 3.79% |
#6
Prev: #6
|
1.7 | -540,277 | -5.2% |
P
S
|
9,905,045 | $407,493,551 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NAMS
NEWAMSTERDAM PH...
|
Healthcare | 3.43% | 3.55% |
#7
1
Prev: #8
|
1.4 | -588,747 | -5.8% |
P
S
|
9,550,191 | $335,020,700 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TYRA
TYRA BIOSCIENCE...
|
Healthcare | 3.29% | 2.10% |
#8
5
Prev: #13
|
1.3 | no change | no change |
P
S
|
12,198,625 | $320,701,851 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
WVE
WAVE LIFE SCIEN...
|
Healthcare | 3.17% | 1.64% |
#9
6
Prev: #15
|
3.3 | 1,000 | 0.0% |
P
S
|
18,203,009 | $309,451,153 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
MLYS
MINERALYS THERA...
|
Healthcare | 2.72% | 3.42% |
#10
1
Prev: #9
|
1.1 | no change | no change |
P
S
|
7,323,750 | $265,778,888 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
EWTX
EDGEWISE THERAP...
|
Healthcare | 2.65% | 2.08% |
#11
3
Prev: #14
|
1.1 | no change | no change |
P
S
|
10,428,437 | $258,781,664 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SEPN
SEPTERNA INC
|
Healthcare | 2.00% | 1.62% |
#12
4
Prev: #16
|
0.8 | no change | no change |
P
S
|
6,995,858 | $195,044,521 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
NUVL
NUVALENT INC-A
|
Healthcare | 1.94% | 1.33% |
#13
8
Prev: #21
|
2.9 | 633,601 | 50.8% |
P
S
|
1,880,057 | $189,114,934 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
IRON
DISC MEDICINE I...
|
Healthcare | 1.61% | 1.28% |
#14
8
Prev: #22
|
2.7 | 399,026 | 25.3% |
P
S
|
1,976,132 | $156,924,642 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
JANX
JANUX THERAPEUT...
|
Healthcare | 1.58% | 3.37% |
#15
5
Prev: #10
|
0.6 | no change | no change |
P
S
|
11,189,693 | $154,417,763 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
PEPG
PEPGEN INC
|
Healthcare | 1.34% | 1.14% |
#16
9
Prev: #25
|
0.5 | no change | no change |
P
S
|
20,064,545 | $130,620,188 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TSHA
TAYSHA GENE THE...
|
Healthcare | 1.33% | 0.95% |
#17
10
Prev: #27
|
0.5 | no change | no change |
P
S
|
23,555,648 | $129,556,064 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SPRY
ARS PHARMACEUTI...
|
Healthcare | 1.30% | 1.34% |
#18
2
Prev: #20
|
0.5 | no change | no change |
P
S
|
10,860,977 | $126,530,382 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BCRX
BIOCRYST PHARMA...
|
Healthcare | 1.26% | — |
#19
Prev: #—
|
2.5 | 15,827,186 | no change |
NEW
|
15,827,186 | $123,452,051 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
BCAX
BICARA THERAPEU...
|
Healthcare | 1.20% | 1.35% |
#20
2
Prev: #18
|
0.5 | no change | no change |
P
S
|
6,955,993 | $117,069,362 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
PRAX
PRAXIS PRECISIO...
|
Healthcare | 1.13% | — |
#21
Prev: #—
|
2.5 | 373,787 | no change |
NEW
|
373,787 | $110,169,980 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GHRS
GH RESEARCH PLC
|
Healthcare | 1.00% | 1.35% |
#22
3
Prev: #19
|
0.4 | no change | no change |
P
S
|
7,676,697 | $97,494,052 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GERN
GERON CORP
|
Healthcare | 0.86% | 1.02% |
#23
3
Prev: #26
|
2.4 | 3,392,000 | 5.6% |
P
S
|
63,771,366 | $84,178,203 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ACLX
ARCELLX INC
|
Healthcare | 0.85% | 3.07% |
#24
13
Prev: #11
|
0.5 | -1,769,371 | -58.3% |
P
S
|
1,267,156 | $82,618,571 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CLYM
CLIMB BIO INC
|
Healthcare | 0.80% | 0.78% |
#25
4
Prev: #29
|
0.5 | -20,125,439 | -64.1% |
P
S
|
11,293,828 | $77,711,233 | 2007 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ETNB
89BIO INC
|
Unknown | 0.00% | 3.60% |
Sold All 😨
(Was: #7) |
0.3 | -19,889,683 | -100.0% |
CLOSED
|
— | $— | 2019 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SRRK
SCHOLAR ROCK HO...
|
Healthcare | 0.00% | 0.54% |
Sold All 😨
(Was: #30) |
0.3 | -1,166,788 | -100.0% |
CLOSED
|
— | $— | 2024 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GPCR
STRUCTURE THERA...
|
Healthcare | 0.00% | 0.52% |
Sold All 😨
(Was: #31) |
0.3 | -1,517,418 | -100.0% |
CLOSED
|
— | $— | 2023 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
MTSR
METSERA INC
|
Healthcare | 0.00% | 0.44% |
Sold All 😨
(Was: #35) |
0.3 | -675,525 | -100.0% |
CLOSED
|
— | $— | 2025 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TVTX
TRAVERE THERAPE...
|
Healthcare | 0.00% | 0.34% |
Sold All 😨
(Was: #38) |
0.3 | -1,150,000 | -100.0% |
CLOSED
|
— | $— | 2020 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
LRMR
LARIMAR THERAPE...
|
Healthcare | 0.00% | 0.24% |
Sold All 😨
(Was: #43) |
0.3 | -6,045,351 | -100.0% |
CLOSED
|
— | $— | 2020 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
TNGX
TANGO THERAPEUT...
|
Healthcare | 0.00% | 0.21% |
Sold All 😨
(Was: #45) |
0.3 | -2,000,000 | -100.0% |
CLOSED
|
— | $— | 2021 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
PRME
PRIME MEDICINE ...
|
Healthcare | 0.00% | 0.20% |
Sold All 😨
(Was: #46) |
0.3 | -3,000,000 | -100.0% |
CLOSED
|
— | $— | 2025 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
RCUS
ARCUS BIOSCIENC...
|
Healthcare | 0.00% | 0.19% |
Sold All 😨
(Was: #47) |
0.3 | -1,136,364 | -100.0% |
CLOSED
|
— | $— | 2025 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
QURE
UNIQURE NV
|
Healthcare | 0.00% | 0.14% |
Sold All 😨
(Was: #50) |
0.3 | -200,000 | -100.0% |
CLOSED
|
— | $— | 2020 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
ELDN
ELEDON PHARMACE...
|
Healthcare | 0.00% | 0.11% |
Sold All 😨
(Was: #51) |
0.3 | -3,566,338 | -100.0% |
CLOSED
|
— | $— | 2024 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
CTMX
CYTOMX THERAPEU...
|
Healthcare | 0.00% | 0.10% |
Sold All 😨
(Was: #55) |
0.3 | -2,661,331 | -100.0% |
CLOSED
|
— | $— | 2021 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
SRZN
SURROZEN INC
|
Healthcare | 0.00% | 0.10% |
Sold All 😨
(Was: #58) |
0.3 | -602,626 | -100.0% |
CLOSED
|
— | $— | 2024 Q2 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
EVH
EVOLENT HEALTH ...
|
Healthcare | 0.00% | 0.06% |
Sold All 😨
(Was: #62) |
0.3 | -579,052 | -100.0% |
CLOSED
|
— | $— | 2023 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
GKOS
GLAUKOS CORP
|
Healthcare | 0.00% | 0.05% |
Sold All 😨
(Was: #63) |
0.3 | -54,180 | -100.0% |
CLOSED
|
— | $— | 2025 Q1 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
EXAS
EXACT SCIENCES ...
|
Healthcare | 0.00% | 0.04% |
Sold All 😨
(Was: #65) |
0.3 | -54,939 | -100.0% |
CLOSED
|
— | $— | 2025 Q3 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) | |||
|
IFRX
INFLARX NV
|
Healthcare | 0.00% | 0.03% |
Sold All 😨
(Was: #66) |
0.3 | -1,973,233 | -100.0% |
CLOSED
|
— | $— | 2017 Q4 | 13F Filing | 2025-12-31 | 2026-02-14 (Est.) |
Showing 1-25 of 88 holdings