XFOR · X4 Pharmaceuticals, Inc · Shareholders & Ownership
The latest filing states the doubt was alleviated.
“The Company has evaluated whether there are certain conditions and events, considered in the aggregate, that raise substantial doubt about the Company's ability to continue as a going concern within one year after the date that the condensed consolidated financial statements are issued. Although the Company has an approved drug product, licensing and sales of the Company's drug product over the next 12 months will not be sufficient to fund the Company's operating expenses. Since inception, the Company has incurred significant operating losses and negative cash flows from operations, and the Company expects to continue to generate operating losses and negative cash flows from operations for the foreseeable future. For the six months ended June 30, 2026, the Company's net loss was $36.4 million and net cash used in operating activities was $40.4 million. As of June 30, 2026, the Company had $208.0 million of cash, cash equivalents and short-term marketable securities, and an accumulated deficit of $631.0 million. Based on its current operating plan, the Company believes (a) that its current cash, cash equivalents and short-term marketable securities will be sufficient to fund its operations and debt obligations for at least the next 12 months and (b) it will continue to comply with all covenants under the Hercules Loan Agreement, as defined and further described in Note 9, through at least the 12-month period from the issuance date of these condensed consolidated financial statements.”View the 10-Q filed Aug 6, 2026
Every disclosed holder of XFOR in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns XFOR
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 99,148,465 | 100.00% |
| Insiders (Forms 3, 4, 5) | 0 | 0.00% |
| 13D/G-only blocks | 17,351,912 | 17.50% |
| Remaining | 17,353,634 | -17.50% |
| Registered funds (N-PORT, not summed) | 22,203,259 | 22.39% |
Shares outstanding: 99,146,743, the issuer's latest cover-page count restated onto today's split basis.
Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of XFOR
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
9,461,279 | ||
| 1.1 |
Inception Portfolio
Fund
S000002825 · Registered fund · Jun 30, 2026
MORGAN STANLEY INSTITUTIONAL FUND INC, not summed
|
2,308,518 | ||
| 2 |
Bain Capital Life Sciences Investors, LLC
13F
CIK 1703031 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,967,454 | ||
| 3 |
PERCEPTIVE ADVISORS LLC
13F
CIK 1224962 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
7,933,491 | ||
| 3.1 |
PERCEPTIVE ADVISORS LLC
13G
CIK 1224962 · Registered investment adviser · Jun 30, 2026
Rule 13d-1(c), passive investor, not summed
|
8,085,006 | ||
| 4 |
Saturn V Capital Management LP
13F
CIK 1964437 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,973,343 | ||
| 5 |
Empery Asset Management, LP
13F
CIK 1469336 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
6,930,591 | ||
| 6 |
Deep Track Capital, LP
13F
CIK 1856083 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,878,757 | ||
| 6.1 |
Deep Track Capital, LP
13G
CIK 1856083 · Investment adviser · Jun 30, 2026
Rule 13d-1(c), passive investor, not summed
|
8,040,894 | ||
| 7 |
Venrock Healthcare Capital Partners III, L.P.
13G
CIK 1738048 · Unknown · Sep 14, 2026
Rule 13d-1(c), passive investor
|
5,555,047 | ||
| 8 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,554,906 | ||
| 8.1 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
5,529,573 | ||
| 8.2 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,907,416 | ||
| 8.3 |
iShares Russell 2000 Value ETF
Fund
S000004342 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
758,220 | ||
| 8.4 |
iShares Micro-Cap ETF
Fund
S000004439 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
271,214 | ||
| 8.5 |
Master Small Cap Index Series
Fund
S000002716 · Registered fund · Jun 30, 2026
Quantitative Master Series LLC, not summed
|
151,139 | ||
| 9 |
Growth Equity Opportunities 18 VGE, LLC
13D
CIK 1917895 · Unknown · Oct 27, 2025
Item 4 purpose: Passive investment
|
5,057,610 | ||
| 10 |
FMR LLC
13G
CIK 315066 · Holding company · Sep 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
4,558,616 | ||
| 10.1 |
FMR LLC
13F
CIK 315066 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
8,321,657 | ||
| 10.2 |
Fidelity Small Cap Growth Fund
Fund
S000007193 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
|
3,386,200 | ||
| 10.3 |
Fidelity Small Cap Growth K6 Fund
Fund
S000057285 · Registered fund · Jul 31, 2026
Fidelity Securities Fund, not summed
|
1,689,700 | ||
| 10.4 |
Select Biotechnology Portfolio
Fund
S000007486 · Registered fund · Aug 31, 2026
Fidelity Select Portfolios, not summed
|
1,428,500 | ||
| 10.5 |
Fidelity Advisor Biotechnology Fund
Fund
S000005321 · Registered fund · Jul 31, 2026
Fidelity Advisor Series VII, not summed
|
1,341,800 | ||
| 11 |
Kalehua Capital Management LLC
13F
CIK 2106181 · Exempt reporting adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,722,840 | ||
| 12 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,715,859 | ||
| 13 |
BIOTECHNOLOGY VALUE FUND L P
13G
CIK 918923 · Unknown · Dec 31, 2025
Rule 13d-1(c), passive investor
|
3,411,993 | ||
| 14 |
NEA Management Company, LLC
13F
CIK 1512848 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,233,743 | ||
| 15 |
Rosalind Advisors, Inc.
13F
CIK 1622627 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,214,766 | ||
| 16 |
BRAIDWELL LP
13F
CIK 1920938 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,922,754 | ||
| 17 |
Blackstone Inc.
13F
CIK 1393818 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,681,922 | ||
| 18 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
2,599,387 | ||
| 19 |
Trails Edge Capital Partners, LP
13F
CIK 2077247 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,571,478 | ||
| 20 |
Coastlands Capital LP
13G
CIK 2068530 · Investment adviser · Oct 3, 2025
Rule 13d-1(b), qualified institution
|
2,491,638 | ||
| 21 |
Nantahala Capital Management, LLC
13F
CIK 1472322 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,449,468 | ||
| 22 |
|
2,233,742 | ||
| 23 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,098,047 | ||
| 24 |
Venrock Adviser, LLC
13F
CIK 1615982 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,934,253 | ||
| 25 |
EQ/Morgan Stanley Small Cap Growth Portfolio
Fund
S000044689 · Registered fund · Jun 30, 2026
EQ Advisors Trust, not summed
|
1,817,124 | ||
| 26 |
SAMSARA BIOCAPITAL, LLC
13F
CIK 1744967 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,395,587 | ||
| 27 |
|
1,296,017 | ||
| 27.1 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
29,000 | ||
| 27.2 |
State Street Total Return V.I.S. Fund
Fund
S000001637 · Registered fund · Jun 30, 2026
STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
|
2,041 | ||
| 27.3 |
State Street Balanced Index Fund
Fund
S000082802 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
1,031 | ||
| 28 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,032,028 | ||
| 29 |
Woodline Partners LP
13F
CIK 1784547 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,001,095 | ||
| 30 |
GOLDMAN SACHS GROUP INC
13F
CIK 886982 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
916,536 | ||
| 31 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
652,849 | ||
| 31.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
41,980 | ||
| 32 |
|
591,862 | ||
| 33 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
572,038 | ||
| 34 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
542,128 | ||
| 35 |
Verdad Advisers, LP
13F
CIK 1812822 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
352,093 | ||
| 36 |
Craig Adam R
Insider
CIK 1339498 · Oct 16, 2026
Director, Executive Chairman, issuer-wide, not summed
|
333,251 | ||
| 37 |
|
265,305 | ||
| 38 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
263,264 | ||
| 38.1 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
196,530 | ||
| 38.2 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
66,731 | ||
| 39 |
Stonepine Capital Management, LLC
13F
CIK 1440771 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
224,989 | ||
| 40 |
Bank of New York Mellon Corp
13F
CIK 1390777 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
196,340 | ||
| 41 |
|
155,983 | ||
| 42 |
Affinity Asset Advisors, LLC
13F
CIK 1773195 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
145,000 | ||
| 43 |
ORBIMED ADVISORS LLC
13G
CIK 1055951 · Registered investment adviser · Jun 30, 2025
Rule 13d-1(c), passive investor
|
134,947 | ||
| 44 |
|
111,246 | ||
| 45 |
|
107,389 | ||
| 45.1 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
107,389 | ||
| 46 |
Invesco Ltd.
13F
CIK 914208 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
96,772 | ||
| 46.1 |
Invesco RAFI US 1500 Small-Mid ETF
Fund
S000013120 · Registered fund · Jul 31, 2026
Invesco Exchange-Traded Fund Trust, not summed
|
30,166 | ||
| 47 |
ALPS ADVISORS INC
13F
CIK 1376113 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
95,726 | ||
| 48 |
RHUMBLINE ADVISERS
13F
CIK 1115418 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
95,081 | ||
| 49 |
Susquehanna Portfolio Strategies, LLC
13F
CIK 1996449 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
87,282 | ||
| 50 |
EQ/2000 Managed Volatility Portfolio
Fund
S000025800 · Registered fund · Jun 30, 2026
EQ Advisors Trust, not summed
|
86,641 |
11 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
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