Funds · 13F filer · West Conshohocken, PA

Fairmount Funds Management LLC

$1.5B in 12 U.S. stocks and ETFs at the end of June 30, 2026, as reported to the SEC.1

1y return+217.1%S&P 500 +20.9%
3y return+301.7%S&P 500 +68.5%
5y return+365.7%S&P 500 +74.5%

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, 2019: $397 against $232 in the S&P 500.2

Fairmount Funds Management LLCS&P 500 (SPY)
$65$100$39720192026

Top holdings

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

StockValueShare of portfolioChange
ORKAOruka Therapeutics Inc$352.6M23.3%
DNTHDianthus Therapeutics Inc$247.3M16.3%
Damora Therapeutics IncCUSIP 36322Q206$226.6M15.0%
COGTCogent Biosciences Inc$213.0M14.1%
JBIOJade Biosciences Inc$101.2M6.7%
ELVNEnliven Therapeutics Inc$94.2M6.2%
VRDNViridian Therapeutics Inc$93.5M6.2%+30.1%
ZBIOZenas Biopharma Inc$59.9M4.0%
Crescent Biopharma Inc.CUSIP G2545C104$49.5M3.3%
Apogee Therapeutics IncCUSIP 03770N101$39.6M2.6%
FTHFaeth Therapeutics Inc$18.1M1.2%New
IKTInhibikase Therapeutics Inc$17.5M1.2%

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
DNTHDianthus Therapeutics IncSeptember 30, 2023+613.1%$247.3M
Apogee Therapeutics IncCUSIP 03770N101September 30, 2023+523.1%$39.6M
ORKAOruka Therapeutics IncSeptember 30, 2024+288.3%$352.6M
COGTCogent Biosciences IncDecember 31, 2020+244.6%$213.0M
ELVNEnliven Therapeutics IncMarch 31, 2023+131.7%$94.2M
JBIOJade Biosciences IncJune 30, 2025+122.4%$101.2M
ZBIOZenas Biopharma IncSeptember 30, 2024+50.0%$59.9M
Crescent Biopharma Inc.CUSIP G2545C104June 30, 2025+11.5%$49.5M
VRDNViridian Therapeutics IncMarch 31, 2021+9.9%$93.5M
Damora Therapeutics IncCUSIP 36322Q206March 31, 2026+0.4%$226.6M

Sold off last quarter

  • SYRESpyre Therapeutics Inc was $202.7M

Quarter by quarter

QuarterIts picksS&P 500
June 30, 2026+32.2%+14.8%
March 31, 2026+22.9%−4.6%
December 31, 2025+51.6%+2.4%
September 30, 2025+28.7%+7.8%
June 30, 2025+4.1%+10.5%
March 31, 2025−13.4%−4.6%
December 31, 2024−18.9%+2.1%
September 30, 2024+24.9%+5.4%
June 30, 2024−5.5%+4.0%
March 31, 2024+24.5%+10.0%
December 31, 2023+29.2%+11.2%
September 30, 2023−8.7%−3.6%
June 30, 2023+10.6%+8.3%
March 31, 2023−11.5%+7.0%
December 31, 2022+28.4%+7.1%
September 30, 2022+21.8%−5.3%
June 30, 2022−16.7%−16.5%
March 31, 2022−7.2%−4.9%
December 31, 2021+2.0%+10.7%
September 30, 2021−4.0%+0.3%

Sources

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

  1. 1
    CIK 1802528
  2. 2
    Filed August 14, 2026 · accession 0001104659-26-096405