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Livermore
Livermore
ZHEN

Prosight Management, LP

SEC CIK
0001617201
Latest filing
Aug 14, 2026

Holdings in Q3 2022

Holdings as of Sep 30, 2022, filed Nov 14, 2022. Long positions only; changes compare share counts with Q2 2022.

Institution overview
Positions
36
+13 vs. Q2 2022
Portfolio value
$181.9M
+$58.5M (+47.4%) vs. Q2 2022
Filed
Nov 14, 2022
SEC
Holdings of Prosight Management, LP in Q3 2022
SecurityClassSharesValue% of portfolioShare changeActionHistory
PRTAProthena Corp Public Ltd CoSHS321,093$19.5M10.7%−228,907−41.6%ReducedHistory
HZNPHorizon Therapeutics Public Ltd CoSHS303,000$18.8M10.3%+303,000NewHistory
LKFTLakefront Biotherapeutics NVSPON ADR405,000$17.3M9.5%+36,000+9.8%AddedHistory
KZRKezar Life Sciences, Inc.COM1,327,899$11.4M6.3%+65,208+5.2%AddedHistory
ALKSAlkermes plc.SHS502,150$11.2M6.2%+502,150NewHistory
ALBOAlbireo Pharma, Inc.COM491,244$9.51M5.2%+23,449+5.0%AddedHistory
MGTXMeiraGTx Holdings plcCOM1,103,365$9.28M5.1%+117,147+11.9%AddedHistory
KALVKalVista Pharmaceuticals, Inc.COM530,062$7.69M4.2%−290,690−35.4%ReducedHistory
CRLCharles River Laboratories International, Inc.COM33,220$6.54M3.6%+5,720+20.8%AddedHistory
ALDXAldeyra Therapeutics, Inc.COM1,210,800$6.47M3.6%−775,083−39.0%ReducedHistory
HUMHumana IncStock12,800$6.21M3.4%+12,800NewHistory
MIRMMirum Pharmaceuticals, Inc.COM285,000$5.99M3.3%+123,473+76.4%AddedHistory
THCTenet Healthcare CorpCOM NEW102,000$5.26M2.9%+51,300+101.2%AddedHistory
JNJJohnson & JohnsonStock31,704$5.18M2.8%+31,704NewHistory
QDELQuidelOrtho CorpCOM62,900$4.50M2.5%+16,324+35.0%AddedHistory
CUECue Biopharma, Inc.COM1,545,573$3.45M1.9%−109,904−6.6%ReducedHistory
RCKTRocket Pharmaceuticals, Inc.COM200,000$3.19M1.8%−76,802−27.7%ReducedHistory
STTKShattuck Labs, Inc.COM1,120,776$3.03M1.7%+100,776+9.9%AddedHistory
ORICOric Pharmaceuticals, Inc.COM936,334$3.00M1.6%+936,334NewHistory
INCYIncyte CorpCOM40,450$2.70M1.5%+40,450NewHistory
OMCLOmnicell, Inc.COM30,700$2.67M1.5%+30,700NewHistory
AVTRAvantor, Inc.COM122,668$2.40M1.3%+122,668NewHistory
BAXBaxter International IncStock39,000$2.10M1.2%+39,000NewHistory
RYTMRhythm Pharmaceuticals, Inc.COM80,000$1.96M1.1%+80,000NewHistory
ONEM1Life Healthcare IncCOM106,200$1.82M1.0%−618,800−85.4%ReducedHistory
BCRXBiocryst Pharmaceuticals IncCOM113,800$1.43M0.8%−62,880−35.6%ReducedHistory
ARDXArdelyx, Inc.COM1,126,127$1.34M0.7%−1,037,393−47.9%ReducedHistory
EOLSEvolus, Inc.COM160,200$1.29M0.7%+160,200NewHistory
PRQRProQR Therapeutics N.V.SHS EURO1,716,290$1.28M0.7%+8,781+0.5%AddedHistory
ADCTADC Therapeutics SASHS247,630$1.19M0.7%+247,630NewHistory
LENZLENZ Therapeutics, Inc.COM356,445$1.13M0.6%+356,445NewHistory
SPRYARS Pharmaceuticals, Inc.COM196,257$1.04M0.6%−144,851−42.5%ReducedHistory
ABCLAbCellera Biologics Inc.COM86,504$856.0K0.5%+86,504NewHistory
RCMR1 RCM Inc.COM32,113$595.0K0.3%+32,113NewHistory
SPOKSpok Holdings, IncCOM65,000$497.0K0.3%+65,000NewHistory
MRVIMaravai Lifesciences Holdings, Inc.COM CL A8,540$218.0K0.1%+8,540NewHistory

Options (2)

Puts and calls in the same filing. Amounts are the market value of the underlying shares, which is what 13F reports.

Option positions of Prosight Management, LP in Q3 2022
SecurityClassPutsCalls
Prothena Corp PLCG72800908CALL–$3.22M
Cassava Sciences Inc14817C957PUT$1.50M–

Sold out since Q2 2022 (4)

Positions held at the end of Q2 2022 that are gone from this filing.

Positions of Prosight Management, LP sold out since Q2 2022
SecurityClassShares in Q2 2022Value in Q2 2022% of portfolio in Q2 2022History
GBTGlobal Blood Therapeutics, Inc.COM101,847$3.25M2.6%History
INMDInMode Ltd.SHS45,000$1.01M0.8%History
APENApollo Endosurgery, Inc.COM90,176$329.0K0.3%History
CGTXCognition Therapeutics IncCOM120,198$254.0K0.2%History