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Logos Global Management LP

CIK:0001792126
Hedge Fund
$4B AUM
51 holdings
San Francisco, CA, United States
Founded:2019
14 employees
Latest filing:Jun 30, 2025

Logos Global Management LP is a hedge fund and registered investment adviser founded in 2019 and headquartered in San Francisco, California. The firm specializes in investment management for institutional and high-net-worth investors. It is controlled by Logos Global Management GP LLC and led by Arsani William as Managing Partner. Logos Global focuses on alternative investment strategies and operates with a small, agile team.

Investment Strategy

Logos Global Management LP primarily employs long/short and opportunistic equity investment strategies, with an emphasis on life sciences and biotechnology sectors. The firm pursues fundamental, research-driven investing, often taking concentrated positions in companies it identifies as undervalued or with strong growth prospects, especially within innovative healthcare industries.

Top Buys
J
JAZZJAZZ PHARMACEUTICALS PLC
+$47.8M
B
BIIBBIOGEN INC
+$25.1M
U
UTHRUNITED THERAPEUTICS CORP DEL
+$24.4M
A
ARVNARVINAS INC
+$24.3M
N
NBIXNEUROCRINE BIOSCIENCES INC
+$18.9M
Top Sells
N
NUVLNUVALENT INC
-$35.5M
J
JANXJANUX THERAPEUTICS INC
-$21.4M
E
ETNB89BIO INC
-$18.2M
G
GERNGERON CORP
-$12.7M
M
MLTXMOONLAKE IMMUNOTHERAPEUTICS
-$4.2M

Top Holdings

I
IDYAIDEAYA BIOSCIENCES INC
+7.8%$70.3M
A
AKROAKERO THERAPEUTICS INC
+7.1%$64.0M
R
RVMDREVOLUTION MEDICINES INC
+6.9%$62.5M
J
JAZZJAZZ PHARMACEUTICALS PLC
+5.3%$47.8M
I
IRONDISC MEDICINE INC
+4.1%$37.1M

Equity Positions (44)

TickerSecurityWeightMarket ValueSharesAvg CostPriceChange (QoQ)
I
IDYA
IDEAYA BIOSCIENCES INC7.78%$70.3M3,345,000$23.01$21.02+$13.0M
A
AKRO
AKERO THERAPEUTICS INC7.08%$64.0M1,200,000$36.78$53.36+$15.5M
R
RVMD
REVOLUTION MEDICINES INC6.92%$62.5M1,700,000$39.11$36.79+$6.0M
J
JAZZ
JAZZ PHARMACEUTICALS PLC5.28%$47.8M450,000$106.12$106.12+$47.8M
I
IRON
DISC MEDICINE INC4.10%$37.1M700,000$50.19$52.96+$17.5M

Options Positions (6)

TickerSecurityActionTypeNotional ValueContractsUnderlying PricePremium PaidChange (Contracts)Change (Value)
X
XBI
SPDR SERIES TRUSTNew
Call
$82.9M10,000$82.93$82.93+10,000+$82.9M
T
TEVA
TEVA PHARMACEUTICAL INDS LTDNew
Call
$25.1M15,000$16.76$16.76+15,000+$25.1M
A
APLS
APELLIS PHARMACEUTICALS INCNew
Call
$17.3M10,000$17.31$17.31+10,000+$17.3M
J
JANX
JANUX THERAPEUTICS INCNew
Call
$11.6M5,000$23.10$23.10+5,000+$11.6M
A
ARVN
ARVINAS INCNew
Call
$11.0M15,000$7.36$7.36+15,000+$11.0M

Industry Allocation

PHARMACEUTICAL PREPARATIONS
+73.0%
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
+17.6%
BLANK CHECKS
+4.1%
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
+1.4%