ROCK SPRINGS CAPITAL MANAGEMENT LP

PrivateCIK: 1595725
Location

BALTIMORE, MD

100
Positions
$1.70B
Total AUM (reported)
53.14M
Total Shares

Allocation by class

TOTAL AUM$1.70B100 positions
COM$1.28B75.5%
SPONSORED ADR$121.43M7.2%
COM NEW$97.85M5.8%
COM PAR $.01$51.39M3.0%
SPONSORED ADS$46.94M2.8%
CL A$26.36M1.6%
COMMON STOCK$19.50M1.1%

Portfolio Concentration

Top 317.6%4–1023.0%11–2526.5%Rest32.9%TOP 1040.6%0%100%
Top 3$297.91M17.6%
4–10$390.91M23.0%
11–25$449.23M26.5%
Rest$558.60M32.9%

Top 3 weight

17.6%

Top 10 weight

40.6%

Voting Authority Distribution

Total shares with voting rights: 53.14M

Sole

Full voting authority

53.14M

shares

% of voting shares100.0%
Shared

Joint voting authority

0.00

shares

% of voting shares0.0%
None

No voting authority

0.00

shares

% of voting shares0.0%

Investment Discretion (by position count)

Sole100
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings100
Rows:

REVOLUTION MEDICINES INC

SOLE
COM
Shares1.21M
TypeSH
Market value$117.62M
6.93%
Sole
1.21M
Shared
0.00
None
0.00

ELI LILLY & CO

SOLE
COM
Shares98.70K
TypeSH
Market value$90.78M
5.35%
Sole
98.70K
Shared
0.00
None
0.00

MADRIGAL PHARMACEUTICALS INC

SOLE
COM
Shares171K
TypeSH
Market value$89.51M
5.28%
Sole
171K
Shared
0.00
None
0.00

MIRUM PHARMACEUTICALS INC

SOLE
COM
Shares811.29K
TypeSH
Market value$74.95M
4.42%
Sole
811.29K
Shared
0.00
None
0.00

ARGENX SE

SOLE
SPONSORED ADR
Shares98.50K
TypeSH
Market value$71.93M
4.24%
Sole
98.50K
Shared
0.00
None
0.00

RHYTHM PHARMACEUTICALS INC

SOLE
COM
Shares689.75K
TypeSH
Market value$59.99M
3.54%
Sole
689.75K
Shared
0.00
None
0.00

INSMED INC

SOLE
COM PAR $.01
Shares314.30K
TypeSH
Market value$51.39M
3.03%
Sole
314.30K
Shared
0.00
None
0.00

ASCENDIS PHARMA A/S

SOLE
SPONSORED ADR
Shares194K
TypeSH
Market value$44.37M
2.62%
Sole
194K
Shared
0.00
None
0.00

XENON PHARMACEUTICALS INC

SOLE
COM
Shares763.02K
TypeSH
Market value$44.37M
2.62%
Sole
763.02K
Shared
0.00
None
0.00

TRAVERE THERAPEUTICS INC

SOLE
COM
Shares1.48M
TypeSH
Market value$43.91M
2.59%
Sole
1.48M
Shared
0.00
None
0.00

KYMERA THERAPEUTICS INC

SOLE
COM
Shares496.87K
TypeSH
Market value$41.38M
2.44%
Sole
496.87K
Shared
0.00
None
0.00

PENUMBRA INC

SOLE
COM
Shares120.50K
TypeSH
Market value$39.57M
2.33%
Sole
120.50K
Shared
0.00
None
0.00

INTUITIVE SURGICAL INC

SOLE
COM NEW
Shares82K
TypeSH
Market value$37.80M
2.23%
Sole
82K
Shared
0.00
None
0.00

SCHOLAR ROCK HLDG CORP

SOLE
COM
Shares739.82K
TypeSH
Market value$36.37M
2.14%
Sole
739.82K
Shared
0.00
None
0.00

ENLIVEN THERAPEUTICS INC

SOLE
COM
Shares826.50K
TypeSH
Market value$32.40M
1.91%
Sole
826.50K
Shared
0.00
None
0.00

BOSTON SCIENTIFIC CORP

SOLE
COM
Shares515.30K
TypeSH
Market value$32.34M
1.91%
Sole
515.30K
Shared
0.00
None
0.00

IRHYTHM HOLDINGS INC

SOLE
COM
Shares261.75K
TypeSH
Market value$30.89M
1.82%
Sole
261.75K
Shared
0.00
None
0.00

STRUCTURE THERAPEUTICS INC

SOLE
SPONSORED ADS
Shares640.22K
TypeSH
Market value$30.86M
1.82%
Sole
640.22K
Shared
0.00
None
0.00

AGIOS PHARMACEUTICALS INC

SOLE
COM
Shares799.16K
TypeSH
Market value$27.04M
1.59%
Sole
799.16K
Shared
0.00
None
0.00

ULTRAGENYX PHARMACEUTICAL IN

SOLE
COM
Shares1.22M
TypeSH
Market value$25.53M
1.50%
Sole
1.22M
Shared
0.00
None
0.00

ALNYLAM PHARMACEUTICALS INC

SOLE
COM
Shares74K
TypeSH
Market value$24.48M
1.44%
Sole
74K
Shared
0.00
None
0.00

COGENT BIOSCIENCES INC

SOLE
COM
Shares624.15K
TypeSH
Market value$24.02M
1.42%
Sole
624.15K
Shared
0.00
None
0.00

TENET HEALTHCARE CORP

SOLE
COM NEW
Shares125K
TypeSH
Market value$23.59M
1.39%
Sole
125K
Shared
0.00
None
0.00

DEXCOM INC

SOLE
COM
Shares355.60K
TypeSH
Market value$22.33M
1.32%
Sole
355.60K
Shared
0.00
None
0.00

CELLDEX THERAPEUTICS INC NEW

SOLE
COM NEW
Shares650.27K
TypeSH
Market value$20.63M
1.22%
Sole
650.27K
Shared
0.00
None
0.00
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