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SCHEDULE 13G Filed 2026-09-21 Event — SEC 0001738048-26-000071 →

Venrock Healthcare Capital Partners III, L.P. → X4 Pharmaceuticals, Inc. XFOR

Stake: — Shares: — Class: Common Stock, $0.001 par value per share

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
5 13D/G filings on this issuer
4 other filings besides this one
Filer Track Record
4 filings by this filer
3 other filings in the data moat
Short Interest · settle 2026-09-30
DTC 6.04
7,590,000 shares short · -7.8% vs prior

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $3.23M
Point72 Asset Mgmt

Other 13D/G Filings on X4 Pharmaceuticals, Inc.

FiledFormFilerStakeShares
2019-07-17 SC Polaris Venture Partners V, L.P. — — view →
2019-05-28 SC New Enterprise Associates 16, L.P. — — view →
2019-03-19 SC ORBIMED ADVISORS LLC — — view →
2018-01-26 SC ORBIMED ADVISORS LLC — — view →

Other Filings by Venrock Healthcare Capital Partners III, L.P.

FiledFormIssuerStakeShares
2026-09-15 SCHEDULE 13D Korsana Biosciences, Inc. 9.90% 4,552,277 view →
2026-09-08 SCHEDULE 13D/A APOGEE THERAPEUTICS, INC. — 0 view →
2026-06-09 SCHEDULE 13G Relmada Therapeutics, Inc. RLMD — — view →

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