Funds · 13F filer · Palo Alto, CA

Samsara Biocapital, LLC

$1.2B in 24 U.S. stocks and ETFs at the end of June 30, 2026, as reported to the SEC.1

1y return+108.6%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 March 31, 2025: $219 against $133 in the S&P 500.2

Samsara Biocapital, LLCS&P 500 (SPY)
$100$21920252026

Top holdings

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

StockValueShare of portfolioChange
SRRKScholar Rock Hldg Corp$379.4M31.2%
ALMSAlumis Inc$178.6M14.7%
MLYSMineralys Therapeutics Inc$158.4M13.0%
SEPNSepterna Inc$105.5M8.7%
ALMRAlamar Biosciences Inc$67.2M5.5%New
NGNENeurogene Inc$54.0M4.4%
KLRSKalaris Therapeutics Inc$52.4M4.3%
SGPSpyglass Pharma Inc$47.0M3.9%
STROSutro Biopharma Inc$35.3M2.9%
IVAInventiva Sa$23.9M2.0%+21.6%
JBIOJade Biosciences Inc$16.4M1.3%−24.0%
PBLSParabilis Medicines Inc$15.2M1.3%New
VTVTVtv Therapeutics Inc$11.2M0.9%
AQSTAquestive Therapeutics Inc$10.4M0.9%
NKTXNkarta Inc$9.9M0.8%
ARTVArtiva Biotherapeutics Inc$9.3M0.8%New
RANIRani Therapeutics Hldgs Inc$7.9M0.6%+22.0%
AGMBAgomab Therapeutics Nv$7.8M0.6%
ABVXAbivax Sa$7.3M0.6%−2.6%
XFORX4 Pharmaceuticals Inc$6.5M0.5%−23.8%
ELOXEloxx Pharmaceuticals Inc$5.6M0.5%New
CHRSCoherus Oncology Inc$4.8M0.4%
UPBUpstream Bio Inc$2.4M0.2%−51.9%
Gossamer Bio IncCUSIP 38341P102$1.2M0.1%

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
VTVTVtv Therapeutics IncDecember 31, 2023+227.4%$11.2M
STROSutro Biopharma IncDecember 31, 2025+186.9%$35.3M
ALMSAlumis IncSeptember 30, 2024+163.5%$178.6M
JBIOJade Biosciences IncJune 30, 2025+122.4%$16.4M
MLYSMineralys Therapeutics IncMarch 31, 2023+72.3%$158.4M
NGNENeurogene IncDecember 31, 2023+62.3%$54.0M
ABVXAbivax SaSeptember 30, 2025+57.0%$7.3M
AGMBAgomab Therapeutics NvMarch 31, 2026+23.7%$7.8M
XFORX4 Pharmaceuticals IncDecember 31, 2025+16.8%$6.5M
SGPSpyglass Pharma IncMarch 31, 2026−14.1%$47.0M

Sold off last quarter

  • Arcellx IncCUSIP 03940C100 was $7.0M
  • PVLAPalvella Therapeutics Inc Ne was $4.8M

Quarter by quarter

QuarterIts picksS&P 500
June 30, 2026+10.2%+14.8%
March 31, 2026+0.4%−4.6%
December 31, 2025+19.9%+2.4%
September 30, 2025+57.3%+7.8%
June 30, 2025+5.0%+10.5%
December 31, 2024−17.7%+2.1%
September 30, 2024+6.8%+5.4%
June 30, 2024−28.9%+4.0%
December 31, 2023+56.2%+11.2%
June 30, 2023+25.5%+8.3%
March 31, 2023−13.3%+7.0%
December 31, 2022+16.8%+7.1%
September 30, 2022+18.4%−5.3%
June 30, 2022−19.7%−16.5%
March 31, 2022−30.1%−4.9%
December 31, 2021−19.9%+10.7%
September 30, 2021−19.1%+0.3%

Sources

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

  1. 1
    CIK 1744967
  2. 2
    Filed August 14, 2026 · accession 0001744967-26-000010