Checkpoint Capital L.P.

In its 13F for Q3 2024 (holdings as of September 30, 2024, filed November 14, 2024), Checkpoint Capital L.P. reported 16 stock positions worth $201.6 million. Its top holding was Argenx SE - ADR (ARGX) at 24.9% of the portfolio, followed by Rhythm Pharmaceuticals (RYTM, 17.2%) and Phathom Pharmaceuticals (PHAT, 13.5%). Compared with Q2 2024, it opened 3 new positions, sold out of 3, added to 6 and reduced 6. The biggest buy was Phathom Pharmaceuticals (PHAT, shares +72%) and the biggest sale Rhythm Pharmaceuticals (RYTM, shares −28%).

Most Recent 13F
Q2 2026
Location
SAN FRANCISCO, CA
CIK
0001977548
Portfolio Value
$201.6M (Q3 2024)
SEC Filing
0001977548-24-000008 ↗ filed Nov 14, 2024

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 $201.6M Q3 2024 Q4 2024: $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 · $201.6M

ARGX Argenx SE - ADR 24.88% 92,500 $50.1M Add +12.6%
RYTM Rhythm Pharmaceuticals Inc. 17.24% 663,381 $34.8M Reduce -28.1%
PHAT Phathom Pharmaceuticals Inc. 13.49% 1,504,307 $27.2M Add +71.9%
CYTK Cytokinetics Inc. 12.23% 466,813 $24.6M Add +145.7%
AXSM Axsome Therapeutics Inc. 9.35% 209,632 $18.8M Reduce -27.9%
AVDL Avadel Pharmaceuticals Ltd. 7.16% 1,100,000 $14.4M Reduce -3.4%
PTGX Protagonist Therapeutics Inc. 5.36% 240,000 $10.8M Reduce -32.4%
PLRX Pliant Therapeutics Inc. 2.11% 380,000 $4.3M Add +63.6%
TCRX Tscan Therapeutics Inc. 2.04% 825,341 $4.1M New
ATYR Atyr Pharma Inc. 1.52% 1,736,477 $3.1M Reduce -10.8%
SLNO Soleno Therapeutics Inc. 1.45% 57,983 $2.9M Add +194.4%
CDTX Cidara Therapeutics Inc. 0.97% 182,426 $2.0M Add +25.4%
STOK Stoke Therapeutics Inc. 0.96% 157,514 $1.9M New
IRON Disc Medicine Inc. 0.62% 25,543 $1.3M New
TRVI Trevi Therapeutics Inc. 0.41% 250,000 $835K Reduce -50.0%
ALLK Allakos LLC 0.21% 649,957 $425K No change

Portfolio Sells Q2 2024 → Q3 2024

RYTM Rhythm Pharmaceuticals Inc. Reduce -28.1% 17.24% −5.58
CORT Corcept Therapeutics Inc. Sold out 0.00% −4.79
AXSM Axsome Therapeutics Inc. Reduce -27.9% 9.35% −4.76
AVDL Avadel Pharmaceuticals Ltd. Reduce -3.4% 7.16% −2.49
PTGX Protagonist Therapeutics Inc. Reduce -32.4% 5.36% −2.06
KYMR Kymera Therapeutics Inc. Sold out 0.00% −1.48
APLT Applied Therapeutics Inc. Sold out 0.00% −0.64
TRVI Trevi Therapeutics Inc. Reduce -50.0% 0.41% −0.48
ATYR Atyr Pharma Inc. Reduce -10.8% 1.52% −0.31

Portfolio Buys Q2 2024 → Q3 2024

PHAT Phathom Pharmaceuticals Inc. Add +71.9% 13.49% +8.06
CYTK Cytokinetics Inc. Add +145.7% 12.23% +6.02
ARGX Argenx SE - ADR Add +12.6% 24.88% +3.58
TCRX Tscan Therapeutics Inc. New 2.04% +2.04
SLNO Soleno Therapeutics Inc. Add +194.4% 1.45% +0.97
STOK Stoke Therapeutics Inc. New 0.96% +0.96
IRON Disc Medicine Inc. New 0.62% +0.62
PLRX Pliant Therapeutics Inc. Add +63.6% 2.11% +0.61
CDTX Cidara Therapeutics Inc. Add +25.4% 0.97% −0.07

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