Checkpoint Capital L.P.

In its 13F for Q4 2024 (holdings as of December 31, 2024, filed February 14, 2025), Checkpoint Capital L.P. reported 16 stock positions worth $196.5 million. Its top holding was Argenx SE - ADR (ARGX) at 29.0% of the portfolio, followed by Rhythm Pharmaceuticals (RYTM, 20.7%) and Phathom Pharmaceuticals (PHAT, 9.4%). Compared with Q3 2024, it opened 2 new positions, sold out of 2, added to 9 and reduced 4. The biggest buy was Disc Medicine (IRON, shares +624%) and the biggest sale Cytokinetics (CYTK, shares −96%).

Most Recent 13F
Q2 2026
Location
SAN FRANCISCO, CA
CIK
0001977548
Portfolio Value
$196.5M (Q4 2024)
SEC Filing
0001977548-25-000004 ↗ filed Feb 14, 2025

Holdings Value

0$100.0M$200.0M$300.0M$400.0M Q1 2024: $149.6M Q1 2024 Q2 2024: $165.9M Q2 2024 Q3 2024: $201.6M Q3 2024 Q4 2024: $196.5M $196.5M Q4 2024 Q1 2025: $182.3M Q1 2025 Q2 2025: $214.6M Q2 2025 Q3 2025: $298.5M Q3 2025 Q4 2025: $315.6M Q4 2025 Q1 2026: $278.7M Q1 2026 Q2 2026: $389.8M Q2 2026

Holdings 16 stocks · $196.5M

ARGX Argenx SE - ADR 28.95% 92,500 $56.9M No change
RYTM Rhythm Pharmaceuticals Inc. 20.74% 727,982 $40.8M Add +9.7%
PHAT Phathom Pharmaceuticals Inc. 9.40% 2,274,157 $18.5M Add +51.2%
AXSM Axsome Therapeutics Inc. 7.53% 174,769 $14.8M Reduce -16.6%
IRON Disc Medicine Inc. 5.97% 185,000 $11.7M Add +624.3%
AVDL Avadel Pharmaceuticals Ltd. 5.37% 1,004,790 $10.6M Reduce -8.7%
RVMD Revolution Medicines Inc. 4.67% 210,000 $9.2M New
PLRX Pliant Therapeutics Inc. 3.59% 535,494 $7.1M Add +40.9%
TCRX Tscan Therapeutics Inc. 2.72% 1,755,987 $5.3M Add +112.8%
CDTX Cidara Therapeutics Inc. 2.60% 196,949 $5.1M Add +8.0%
TRVI Trevi Therapeutics Inc. 2.27% 1,084,135 $4.5M Add +333.6%
STOK Stoke Therapeutics Inc. 1.71% 305,387 $3.4M Add +93.9%
SLNO Soleno Therapeutics Inc. 1.60% 70,027 $3.1M Add +20.8%
KYMR Kymera Therapeutics Inc. 1.59% 77,535 $3.1M New
ATYR Atyr Pharma Inc. 0.80% 432,561 $1.6M Reduce -75.1%
CYTK Cytokinetics Inc. 0.48% 20,000 $941K Reduce -95.7%

Portfolio Sells Q3 2024 → Q4 2024

CYTK Cytokinetics Inc. Reduce -95.7% 0.48% −11.75
PTGX Protagonist Therapeutics Inc. Sold out 0.00% −5.36
AXSM Axsome Therapeutics Inc. Reduce -16.6% 7.53% −1.82
AVDL Avadel Pharmaceuticals Ltd. Reduce -8.7% 5.37% −1.78
ATYR Atyr Pharma Inc. Reduce -75.1% 0.80% −0.72
ALLK Allakos LLC Sold out 0.00% −0.21

Portfolio Buys Q3 2024 → Q4 2024

IRON Disc Medicine Inc. Add +624.3% 5.97% +5.35
RVMD Revolution Medicines Inc. New 4.67% +4.67
RYTM Rhythm Pharmaceuticals Inc. Add +9.7% 20.74% +3.50
TRVI Trevi Therapeutics Inc. Add +333.6% 2.27% +1.86
CDTX Cidara Therapeutics Inc. Add +8.0% 2.60% +1.63
KYMR Kymera Therapeutics Inc. New 1.59% +1.59
PLRX Pliant Therapeutics Inc. Add +40.9% 3.59% +1.48
STOK Stoke Therapeutics Inc. Add +93.9% 1.71% +0.75
TCRX Tscan Therapeutics Inc. Add +112.8% 2.72% +0.68
SLNO Soleno Therapeutics Inc. Add +20.8% 1.60% +0.15
PHAT Phathom Pharmaceuticals Inc. Add +51.2% 9.40% −4.09

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 6$389.8MRYTM, ARGX, RVMD, CYTK, IRON
Q1 2026 8$278.7MARGX, RYTM, RVMD, IRON, CYTK
Q4 2025 6$315.6MARGX, RYTM, IRON, RVMD, CORT
Q3 2025 10$298.5MARGX, RYTM, CORT, IRON, RVMD
Q2 2025 8$214.6MARGX, RYTM, CORT, IRON, RVMD
Q1 2025 14$182.3MARGX, RYTM, RVMD, SLNO, IRON
Q4 2024 16$196.5MARGX, RYTM, PHAT, AXSM, IRON
Q3 2024 16$201.6MARGX, RYTM, PHAT, CYTK, AXSM
Q2 2024 16$165.9MRYTM, ARGX, AXSM, AVDL, PTGX
Q1 2024 17$149.6MRYTM, ARGX, CYTK, AVDL, AXSM