X4 Pharmaceuticals is based in Boston. It has raised $75M in total funding. Backed by Coastlands Capital, Bain Capital Life Sciences.
X4 Pharmaceuticals is based in Boston. X4 Pharmaceuticals has raised $75M in total disclosed funding. That places its disclosed total in the $25M–$100M range. The round record for X4 Pharmaceuticals runs through 2025; nothing later has been disclosed. Investors on record include Coastlands Capital, Bain Capital Life Sciences, New Enterprise Associates, BVF Partners LP, Deep Track Capital, Kalehua Capital and 3 others. 9 distinct backers are named across the disclosed rounds.
X4 Pharmaceuticals totals reflect disclosed capital only — undisclosed extensions and secondaries are excluded. Use the related companies in Boston below to benchmark round size and investor mix.
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