$XENE

$35.77 +$0.43 (1.22%) Close

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

Ownership

13F as of Q2 2026 · 96.8M shares outstanding

Who owns XENE?

By type of holder

Institutions 100.0% Insiders 0.0% Everyone else 0.0%

Concentration Top 10 holders own 46.0%

FMR LLC 10.0% · BlackRock, Inc. 7.8%

Institutional ownership

100.0%

0 pts vs last qtr

Institutional holders

311

+22 vs last qtr

Net shares bought

+713.0K

by institutions in Q2 2026

New / sold out

48 / 26

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Jupiter Topco LLC NEW +4.2M
Price T Rowe Associates Inc /MD/ +1.9M

Biggest sellers in Q2 2026

Janus Henderson Group PLC SOLD OUT −4.2M
Wellington Management Group LLP −3.4M

Who is planning to sell?

Notices of proposed sale, last 12 months

$22M

15 notices from 7 people

Shares covered

381.6K

0.39% of the company

Arranged in advance

97%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Ian Mortimer Officer 10b5-1 $20.3M
Steven Gannon Director $641K

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, FY2015–FY2025

+454.9%

+20.97% a year

Each share's claim on the business

−82.0%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $184M

over 10 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+ years47% 3–5 years15% 1–3 years20% Under 1 year18%

Quarterly turnover

19.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting XENE on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
F FMR LLC	9.6M	9.96%	−1.2M (−10.8%)	≤2021	0.0%
Shares held by quarter Peak holding10.8M (Q1'26) Change over 8 quarters+2.7M Share of the company9.960% FMR LLC's full portfolio →
B BlackRock, Inc.	7.5M	7.77%	+1.9M (+33.4%)	≤2021	0.0%
Shares held by quarter Peak holding7.5M (Q2'26) Change over 8 quarters+5.4M Share of the company7.770% BlackRock, Inc.'s full portfolio →

FMR LLC

9.6M

% of company

9.96%

Change vs last qtr

−1.2M (−10.8%)

Held since

≤2021

BlackRock, Inc.

7.5M

% of company

7.77%

Change vs last qtr

+1.9M (+33.4%)

Held since

≤2021

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting XENE on Form N-PORT; together they hold 43.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SW SMALLCAP World Fund Inc SMALLCAP World Fund Inc	$189M	3.1M	3.23%	0.20%	June 30, 2026
SA Strategic Advisers Fidelity U.S. Total Stock Fund Fidelity Rutland Square Trust II	$164M	2.7M	2.81%	0.06%	August 31, 2026

SMALLCAP World Fund Inc

Position value

$189M

% of company

3.23%

% of the fund

0.20%

As of

June 30, 2026

Strategic Advisers Fidelity U.S. Total Stock Fund

Fidelity Rutland Square Trust II

Position value

$164M

% of company

2.81%

% of the fund

0.06%

As of

August 31, 2026

23 more funds behind a free account

See every fund holding Xenon 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
MI Mortimer Ian Insider	82.8K	0.09%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.090% Mortimer Ian's insider activity →
PG Patou Gary Insider	34.8K	0.04%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.040% Patou Gary's insider activity →

Mortimer Ian

Insider

82.8K

% of company

0.09%

Change vs last qtr

—

Held since

—

Patou Gary

Insider

34.8K

% of company

0.04%

Change vs last qtr

—

Held since

—

9 more holders behind a free account

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

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