Funds · 13F filer · San Diego, CA

Boxer Capital Management, LLC

$1.3B in 63 U.S. stocks and ETFs at the end of June 30, 2026, as reported to the SEC.1

1y return+181.0%S&P 500 +20.9%

These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.

$100 invested in its stock picks

Since December 31, 2024: $264 against $127 in the S&P 500.2

Boxer Capital Management, LLCS&P 500 (SPY)
$86$100$26420242026

Top holdings

At the end of June 30, 2026. Change is in shares since the quarter before.2

StockValueShare of portfolioChange
TNGXTango Therapeutics Inc$340.0M25.6%
RVMDRevolution Medicines Inc$93.6M7.1%
ABVXAbivax Sa$80.6M6.1%+202.5%
Uniqure NvCUSIP N90064101$69.2M5.2%+127.1%
KODKodiak Sciences Inc$57.6M4.3%+8.6%
KYMRKymera Therapeutics Inc$49.2M3.7%+30.4%
DFTXDefinium Therapeutics Inc$47.0M3.5%+66.8%
REPLReplimune Group Inc$44.1M3.3%+239.0%
CELCCelcuity Inc$43.6M3.3%+85.1%
QTTBQ32 Bio Inc$40.1M3.0%New
CAPRCapricor Therapeutics Inc$33.6M2.5%+136.5%
PGENPrecigen Inc$29.4M2.2%+47.1%
CORTCorcept Therapeutics Inc$29.2M2.2%+34.2%
SRZNSurrozen Inc.$27.0M2.0%+44.3%
PTGXProtagonist Therapeutics Inc$20.8M1.6%
VIRVir Biotechnology Inc$19.0M1.4%
PCVXVaxcyte Inc$18.9M1.4%
Urogen Pharma LtdCUSIP M96088105$18.4M1.4%
CRVSCorvus Pharmaceuticals Inc$16.4M1.2%
PTCTPtc Therapeutics Inc$16.3M1.2%
PRAXPraxis Precision Medicines I$15.6M1.2%
AMLXAmylyx Pharmaceuticals Inc$14.4M1.1%
OCULOcular Therapeutix Inc$12.8M1.0%+271.4%
IRDOpus Genetics Inc$11.6M0.9%+25.1%
PALIPalisade Bio Inc$10.0M0.8%

Best picks still held

How each current holding has done since the quarter it first appeared in its filings (up to six years back).

StockHeld sinceReturn sinceNow worth
AMLXAmylyx Pharmaceuticals IncDecember 31, 2024+375.1%$14.4M
RVMDRevolution Medicines IncDecember 31, 2024+328.2%$93.6M
Apogee Therapeutics IncCUSIP 03770N101September 30, 2025+234.1%$9.3M
KYMRKymera Therapeutics IncDecember 31, 2024+185.0%$49.2M
MLTXMoonlake ImmunotherapeuticsSeptember 30, 2025+171.5%$5.4M
Urogen Pharma LtdCUSIP M96088105June 30, 2025+168.6%$18.4M
DFTXDefinium Therapeutics IncMarch 31, 2026+148.9%$47.0M
PTGXProtagonist Therapeutics IncJune 30, 2025+121.8%$20.8M
CORTCorcept Therapeutics IncMarch 31, 2026+115.7%$29.2M
CELCCelcuity IncSeptember 30, 2025+111.8%$43.6M

Sold off last quarter

  • Terns Pharmaceuticals IncCUSIP 880881107 was $19.8M
  • Soleno Therapeutics IncCUSIP 834203309 was $6.7M
  • Kalvista Pharmaceuticals IncCUSIP 483497103 was $411K

Quarter by quarter

QuarterIts picksS&P 500
June 30, 2026+34.0%+14.8%
March 31, 2026+36.1%−4.6%
December 31, 2025+12.7%+2.4%
September 30, 2025+36.7%+7.8%
June 30, 2025+9.1%+10.5%
March 31, 2025−13.8%−4.6%

Sources

Every number on this page points here. Each one links to the public record.

  1. 1
    CIK 2018299
  2. 2
    Filed August 14, 2026 · accession 0001213900-26-090024