Microcap Ledger

Tickers · $XFOR

X4 Pharmaceuticals, Inc $XFOR

By Microcap Ledger desk · CIK 0001501697

Facts as of . Built from SEC filings and our own data. Small caps move fast; check the latest filings.

Snapshot

Exchange
Nasdaq Capital Market
Sector
Biological Products, (No Diagnostic Substances)
Headquarters
Boston, MA
Fiscal year end
December 31
Shares outstanding
99,146,743 [10-Q 2026-08-06]
as of 2026-07-31

Sources: [10-K 2026-03-17]

What the company doesAI summary of filing

X4 Pharmaceuticals is a biopharmaceutical company developing and commercializing therapeutics for rare hematology diseases. The company has one FDA-approved product, XOLREMDI (mavorixafor), an oral small-molecule CXCR4 antagonist approved in April 2024 for treating WHIM syndrome in patients 12 years and older; the company is not actively promoting XOLREMDI but maintains patient access through specialty pharmacy and international partners. The company generates revenue through product sales of XOLREMDI and from sublicense agreements, though it has not achieved significant revenue to date. X4 is primarily focused on advancing mavorixafor through a pivotal Phase 3 trial (4WARD) in chronic neutropenia patients, with enrollment targeted to complete in the third quarter of 2026 and top-line data expected in the second half of 2027. [10-K 2026-03-17]

Segments: XOLREMDI (mavorixafor) for WHIM syndrome, Mavorixafor for Chronic Neutropenia (4WARD Phase 3 trial)

Financial health

From XBRL company facts (USD)
PeriodRevenueNet incomeOperating cash flowCashFiling
6 months to Jun 2026$4.80M−$36.40M −$40.39M$195.09M[10-Q 2026-08-06]
FY ended Dec 2025$6.50M−$79.20M −$85.62M$217.05M[10-K 2026-03-17]
FY ended Dec 2024$2.60M−$37.45M −$130.90M$55.70M[10-K 2026-03-17]
Quarterly cash burn
−$20.19M
Cash runway Estimate
~29 months

Estimate: cash at the end of the period (6 months to Jun 2026) divided by the average monthly operating cash outflow over that period. Ignores any cash raised or spent since, and any financing.

Capital structure and dilution

Summary only. How these instruments work: Dilution & financing desk.

Share count
DateShares outstandingFiling
2024-11-11170,546,469[10-Q 2024-11-13]
2025-03-20173,662,376[10-K 2025-03-26]
2025-04-285,788,686[10-Q 2025-05-01]
2025-08-0411,408,357[10-Q 2025-08-08]
2025-10-3187,436,688[10-Q 2025-11-05]
2026-03-1290,919,696[10-K 2026-03-17]
2026-05-0194,319,696[10-Q 2026-05-06]
2026-07-3199,146,743[10-Q 2026-08-06]
Shelf registration
S-3 filed 2026-05-06; declared effective 2026-05-14 [S-3 2026-05-06]

Listing status

Current status: No Form 8-K Item 3.01 (listing notice) filings in the last 24 months, as of 2026-10-11.

More on deficiency notices and uplistings: Listing status desk.

Who owns it

Recent Form 4 transactions
DateInsiderTypeSharesPriceFiling
2026-10-01Kirske Davidsell11,767$2.86[4 2026-10-05]
2026-08-12Volpone Johnsell24,576$4.44[4 2026-08-13]
2026-08-12Craig Adam Rsell47,436$4.44[4 2026-08-13]
2026-06-30Kirske Davidsell8,543$4.26[4 2026-07-01]
2026-05-12Kirske Davidsell16,961$4.29[4 2026-05-13]

Catalysts and calendar

Facts as of . Small caps move fast; check the latest filings.