Lynx1 Capital Management LP

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Lynx1 Capital Management LP reported 14 stock positions worth $279.2 million. Its top holding was GH Research (GHRS) at 25.5% of the portfolio, followed by Merus (MRUS, 23.6%) and Protagonist Therapeutics (PTGX, 12.7%). Compared with Q4 2024, it opened 2 new positions, sold out of 6, added to 5 and reduced 2. The biggest buy was GH Research (GHRS, shares +33%) and the biggest sale an exit from Keros Therapeutics (KROS).

Most Recent 13F
Q2 2026
Location
DORADO, PR
CIK
0001910456
Portfolio Value
$279.2M (Q1 2025)
SEC Filing
0001892688-25-000120 ↗ filed May 15, 2025

Holdings Value

0$200.0M$400.0M$600.0M$800.0M$1.0B Q1 2024: $388.2M Q1 2024 Q2 2024: $277.2M Q2 2024 Q3 2024: $282.2M Q3 2024 Q4 2024: $266.7M Q4 2024 Q1 2025: $279.2M $279.2M Q1 2025 Q2 2025: $346.2M Q2 2025 Q3 2025: $491.3M Q3 2025 Q4 2025: $494.0M Q4 2025 Q1 2026: $632.7M Q1 2026 Q2 2026: $865.5M Q2 2026

Holdings 14 stocks · $279.2M

GHRS GH Research PLC 25.45% 6,443,940 $71.1M Add +32.6%
MRUS Merus NV 23.65% 1,568,841 $66.0M Reduce -0.8%
PTGX Protagonist Therapeutics Inc. 12.69% 733,014 $35.4M New
STOK Stoke Therapeutics Inc. 12.60% 5,291,929 $35.2M Add +2.0%
CGEM Cullinan Therapeutics Inc. 8.72% 3,215,722 $24.3M Add +155.7%
ALLO Allogene Therapeutics Inc. 5.78% 11,057,009 $16.1M Add +1.7%
CCCC C4 Therapeutics Inc. 4.07% 7,098,133 $11.4M Add +3.6%
TCRX Tscan Therapeutics Inc. 2.65% 5,357,347 $7.4M No change
DTIL Precision Biosciences Inc. 1.31% 766,051 $3.7M No change
IBIO Ibio Inc. 1.24% 862,279 $3.5M No change
PASG Passage Bio Inc. 1.17% 9,256,953 $3.3M No change
UPB Upstream Bio Inc. 0.48% 219,247 $1.3M Reduce -8.7%
NEUP Neuphoria Therapeutics Inc. 0.09% 45,806 $264K No change
DSGN Design Therapeutics Inc. 0.09% 65,954 $255K New

Portfolio Sells Q4 2024 → Q1 2025

KROS Keros Therapeutics Inc. Sold out 0.00% −3.23
ALLK Allakos LLC Sold out 0.00% −1.65
MRUS Merus NV Reduce -0.8% 23.65% −1.28
UPB Upstream Bio Inc. Reduce -8.7% 0.48% −1.00
CRBU Caribou Biosciences Inc. Sold out 0.00% −0.41
VOR Vor Biopharma Inc. Sold out 0.00% −0.27
CNTA Centessa Pharmaceuticals Ltd. Sold out 0.00% −0.11
RPTX Repare Therapeutics Inc. Sold out 0.00% −0.04

Portfolio Buys Q4 2024 → Q1 2025

GHRS GH Research PLC Add +32.6% 25.45% +12.70
PTGX Protagonist Therapeutics Inc. New 12.69% +12.69
CGEM Cullinan Therapeutics Inc. Add +155.7% 8.72% +2.97
DSGN Design Therapeutics Inc. New 0.09% +0.09
ALLO Allogene Therapeutics Inc. Add +1.7% 5.78% −2.90
CCCC C4 Therapeutics Inc. Add +3.6% 4.07% −5.18
STOK Stoke Therapeutics Inc. Add +2.0% 12.60% −8.85

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026Amended 27$865.5MGHRS, CGEM, STOK, AGIO, CCCC
Q1 2026 23$632.7MSTOK, GHRS, CGEM, AGIO, DNLI
Q4 2025 22$494.0MSTOK, GHRS, CGEM, DNLI, CCCC
Q3 2025 14$491.3MMRUS, STOK, GHRS, PTGX, CGEM
Q2 2025 15$346.2MMRUS, GHRS, STOK, PTGX, CGEM
Q1 2025 14$279.2MGHRS, MRUS, PTGX, STOK, CGEM
Q4 2024 18$266.7MMRUS, STOK, GHRS, CCCC, ALLO
Q3 2024 18$282.2MMRUS, STOK, CCCC, GHRS, TCRX
Q2 2024Amended 17$277.2MMRUS, STOK, GHRS, CCCC, TCRX
Q1 2024Amended 16$388.2MALPN, MRUS, STOK, TCRX, CABA