$XFOR

$3.25 +$0.00 (0.0%) After hours

$XFOR Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 99.1M shares outstanding

Who owns XFOR?

By type of holder

Institutions 99.9% Insiders 0.1% Everyone else 0.0%

Concentration Top 10 holders own 69.7%

Morgan Stanley 9.5% · Empery Asset Management, LP 7.0%

Institutional ownership

99.9%

+5.2 pts vs last qtr

Institutional holders

+3 vs last qtr

Net shares bought

+5.2M

by institutions in Q2 2026

New / sold out

32 / 29

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +4.3M
Venrock Adviser, LLC +1.6M

Biggest sellers in Q2 2026

Empery Asset Management, LP −2.0M
Millennium Management LLC SOLD OUT −1.2M

Who is planning to sell?

Notices of proposed sale, last 12 months

$434K

4 notices from 3 people

Shares covered

100.7K

0.10% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Adam Craig Executive chaiman $216K
John Volpone Officer $112K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+613.6%

+167.12% a year

Each share's claim on the business

−86.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $21.2M

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years32% 3–5 years3% 1–3 years0% Under 1 year65%

Quarterly turnover

11.5%

of institutional shares changed hands

Top 10 managers, median time held

3 quarters

Super Investors

Investment managers reporting XFOR on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
MS Morgan Stanley	9.5M	9.54%	−5.7K (−0.1%)	≤2021	0.0%
Shares held by quarter Peak holding9.5M (Q1'26) Change over 8 quarters+9.0M Share of the company9.540% Morgan Stanley's full portfolio →
EA Empery Asset Management, LP	6.9M	6.99%	−2.0M (−22.5%)	Q4 '25	37.4%
Shares held by quarter Peak holding9.0M (Q4'25) Change over 8 quarters+6.9M Share of the company6.990% Empery Asset Management, LP's full portfolio →

Morgan Stanley

9.5M

% of company

9.54%

Change vs last qtr

−5.7K (−0.1%)

Held since

≤2021

Empery Asset Management, LP

6.9M

% of company

6.99%

Change vs last qtr

−2.0M (−22.5%)

Held since

Q4 '25

28 more super investors behind a free account

See every manager holding X4 Pharmaceuticals, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting XFOR on Form N-PORT; together they hold 22.2% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FS Fidelity Small Cap Growth Fund Fidelity Securities Fund	$13.5M	3.4M	3.42%	0.15%	July 31, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$12.1M	2.6M	2.62%	0.00%	June 30, 2026

Fidelity Small Cap Growth Fund

Fidelity Securities Fund

Position value

$13.5M

% of company

3.42%

% of the fund

0.15%

As of

July 31, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$12.1M

% of company

2.62%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding X4 Pharmaceuticals, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
RY Rick Yang 5%+ holder 13D · 6.2%	5.1M	5.10%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company5.100% Disclosed stake13D · 6.2% View the 13D/G filing →
GE Growth Equity Opportunities 18 VGE, LLC 5%+ holder 13D · 6.2%	5.1M	5.10%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company5.100% Disclosed stake13D · 6.2% View the 13D/G filing →

Rick Yang

5%+ holder13D · 6.2%

5.1M

% of company

5.10%

Change vs last qtr

—

Held since

—

Growth Equity Opportunities 18 VGE, LLC

5%+ holder13D · 6.2%

5.1M

% of company

5.10%

Change vs last qtr

—

Held since

—

25 more holders behind a free account

See every insider and 5%+ holder of X4 Pharmaceuticals, Inc..

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