# Prosight Management, LP: Form 13F holdings

An institutional investment manager in DALLAS, TX. SEC CIK 1617201.

- Quarter ended: 2026-06-30
- Filed: 2026-08-14
- Reported value: $580.4m
- Positions: 36 (36 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1617201/000142050626001799/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [LAKEFRONT BIOTHERAPEUTICS NV (LKFT)](/companies/lkft.md) | SPON ADR | $61.3m | 10.6% | 2,043,344 |  | Added +493,344 |
| [JANUX THERAPEUTICS INC (JANX)](/companies/janx.md) | COM | $58.4m | 10.1% | 3,804,481 |  | Added +254,481 |
| [NEKTAR THERAPEUTICS (NKTR)](/companies/nktr.md) | COM NEW | $56.5m | 9.7% | 810,000 |  | Added +75,000 |
| [BOSTON SCIENTIFIC CORP (BSX)](/companies/bsx.md) | COM | $54.2m | 9.3% | 1,270,273 |  | Added +474,726 |
| [SHATTUCK LABS INC (STTK)](/companies/sttk.md) | COM | $41.3m | 7.1% | 5,957,877 |  | Added +953,438 |
| [INSMED INC (INSM)](/companies/insm.md) | COM PAR $.01 | $40.0m | 6.9% | 375,609 |  | New +375,609 |
| [ALNYLAM PHARMACEUTICALS INC (ALNY)](/companies/alny.md) | COM | $29.5m | 5.1% | 98,080 |  | Added +22,080 |
| [SYNDAX PHARMACEUTICALS INC (SNDX)](/companies/sndx.md) | COM | $26.2m | 4.5% | 1,200,000 |  | Added +430,000 |
| [KURA ONCOLOGY INC (KURA)](/companies/kura.md) | COM | $22.2m | 3.8% | 2,021,964 |  | Reduced −1,334,736 |
| ALKERMES PLC | SHS | $20.7m | 3.6% | 394,389 |  | Reduced −119,243 |
| [IRHYTHM HOLDINGS INC (IRTC)](/companies/irtc.md) | COM | $19.7m | 3.4% | 165,500 |  | Added +155,500 |
| [VEEVA SYS INC (VEEV)](/companies/veev.md) | CL A COM | $18.8m | 3.2% | 106,200 |  | Added +19,720 |
| [ZYMEWORKS INC (ZYME)](/companies/zyme.md) | COM | $17.6m | 3.0% | 674,434 |  | Added +135,385 |
| [ABIVAX SA (ABVX)](/companies/abvx.md) | SPONSORED ADS | $14.3m | 2.5% | 107,394 |  | Added +2,394 |
| CRINETICS PHARMACEUTICALS IN | COM | $14.0m | 2.4% | 374,666 |  | Added +24,666 |
| [MINERALYS THERAPEUTICS INC (MLYS)](/companies/mlys.md) | COM | $12.1m | 2.1% | 449,795 |  | New +449,795 |
| ADC THERAPEUTICS SA | SHS | $8.4m | 1.4% | 7,824,749 |  | Reduced −475,251 |
| [ICU MED INC (ICUI)](/companies/icui.md) | COM | $7.5m | 1.3% | 51,000 |  | Added +23,550 |
| [INTUITIVE SURGICAL INC (ISRG)](/companies/isrg.md) | COM NEW | $6.8m | 1.2% | 17,000 |  | Added +13,000 |
| [CORBUS PHARMACEUTICALS HLDGS (CRBP)](/companies/crbp.md) | COM NEW | $6.1m | 1.1% | 650,000 |  | Reduced −47,108 |
| [PROCEPT BIOROBOTICS CORP (PRCT)](/companies/prct.md) | COM | $6.1m | 1.0% | 268,269 |  | Reduced −1,676,731 |
| [GENEDX HOLDINGS CORP (WGS)](/companies/wgs.md) | COM CL A | $5.9m | 1.0% | 85,500 |  | Reduced −437,963 |
| [OPTION CARE HEALTH INC (OPCH)](/companies/opch.md) | COM NEW | $5.7m | 1.0% | 270,716 |  | New +270,716 |
| [ONKURE THERAPEUTICS INC (OKUR)](/companies/okur.md) | COM CL A | $4.5m | 0.8% | 978,992 |  | Reduced −1,175,389 |
| [EMERGENT BIOSOLUTIONS INC (EBS)](/companies/ebs.md) | COM | $3.9m | 0.7% | 459,952 |  | Reduced −179,166 |
| [PFIZER INC (PFE)](/companies/pfe.md) | COM | $3.3m | 0.6% | 135,366 |  | New +135,366 |
| [ORTHOPEDIATRICS CORP (KIDS)](/companies/kids.md) | COM | $3.0m | 0.5% | 157,500 |  | Reduced −144,899 |
| [ROCKET PHARMACEUTICALS INC (RCKT)](/companies/rckt.md) | COM | $2.4m | 0.4% | 700,000 |  | Added +16,144 |
| [AN2 THERAPEUTICS INC (ANTX)](/companies/antx.md) | COM | $2.3m | 0.4% | 474,638 |  | Reduced −41,116 |
| [PLIANT THERAPEUTICS INC (PLRX)](/companies/plrx.md) | COM | $1.6m | 0.3% | 1,370,233 |  | Reduced −297,367 |
| [TECTONIC THERAPEUTIC INC (TECX)](/companies/tecx.md) | COM | $1.4m | 0.2% | 39,731 |  | Reduced −40,141 |
| MEIRAGTX HLDGS PLC | COM | $1.2m | 0.2% | 90,000 |  | Reduced −2,539,971 |
| [EVERFORTH INC (EFOR)](/companies/efor.md) | COM | $1.2m | 0.2% | 67,500 |  | New +67,500 |
| [REIN THERAPEUTICS INC (RNTX)](/companies/rntx.md) | COM NEW | $1.1m | 0.2% | 1,100,000 |  | Added +688,400 |
| [COYA THERAPEUTICS INC (COYA)](/companies/coya.md) | COMMON STOCK | $994.5k | 0.2% | 170,000 |  | Reduced −250,360 |
| [IMMUNEERING CORP (IMRX)](/companies/imrx.md) | CLASS A COM | $183.9k | <0.1% | 36,861 |  | Reduced −86,548 |

## Sold out

Held at the end of the quarter before and not reported this quarter.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [ADICET BIO INC (ACET)](/companies/acet.md) | COM NEW | $0 | 0.0% | 0 |  | Sold out −250,244 |
| [CONCENTRA GROUP HOLDINGS PAR (CON)](/companies/con.md) | COMMON STOCK | $0 | 0.0% | 0 |  | Sold out −505,822 |
| [IMMUNOVANT INC (IMVT)](/companies/imvt.md) | COM | $0 | 0.0% | 0 |  | Sold out −175,825 |
| NOVOCURE LTD | ORD SHS | $0 | 0.0% | 0 |  | Sold out −50,400 |
| [OMEROS CORP (OMER)](/companies/omer.md) | COM | $0 | 0.0% | 0 |  | Sold out −174,800 |
| [PALVELLA THERAPEUTICS INC NE (PVLA)](/companies/pvla.md) | COM | $0 | 0.0% | 0 |  | Sold out −5,000 |
| [PHREESIA INC (PHR)](/companies/phr.md) | COM | $0 | 0.0% | 0 |  | Sold out −1,100,000 |
| [REGENXBIO INC (RGNX)](/companies/rgnx.md) | COM | $0 | 0.0% | 0 |  | Sold out −200,000 |
| ROIVANT SCIENCES LTD | SHS | $0 | 0.0% | 0 |  | Sold out −180,000 |
| [SCHRODINGER INC (SDGR)](/companies/sdgr.md) | COM | $0 | 0.0% | 0 |  | Sold out −510,578 |
| TERNS PHARMACEUTICALS INC | COM | $0 | 0.0% | 0 |  | Sold out −202,300 |
| [TRANSMEDICS GROUP INC (TMDX)](/companies/tmdx.md) | COM | $0 | 0.0% | 0 |  | Sold out −5,000 |
| [TRUEBLUE INC (TBI)](/companies/tbi.md) | COM | $0 | 0.0% | 0 |  | Sold out −249,107 |
| [UPSTREAM BIO INC (UPB)](/companies/upb.md) | COM | $0 | 0.0% | 0 |  | Sold out −241,123 |
| [VIKING THERAPEUTICS INC (VKTX)](/companies/vktx.md) | COM | $0 | 0.0% | 0 |  | Sold out −45,000 |

Source: SEC EDGAR, Form 13F-HR, accession 0001420506-26-001799. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.