$DFTX

$35.50 -$0.17 (0.48%) Live

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

Ownership

13F as of Q2 2026 · 134.4M shares outstanding

Who owns DFTX?

By type of holder

Institutions 85.4% Insiders 3.4% Everyone else 11.2%

Concentration Top 10 holders own 41.0%

BlackRock, Inc. 8.4% · Avoro Capital Advisors LLC 5.4%

Institutional ownership

85.4%

+27.3 pts vs last qtr

Institutional holders

359

+113 vs last qtr

Net shares bought

+36.7M

by institutions in Q2 2026

New / sold out

148 / 35

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Jupiter Topco LLC NEW +5.6M
Capital World Investors NEW +5.4M

Biggest sellers in Q2 2026

Janus Henderson Group PLC SOLD OUT −3.6M
Trails Edge Capital Partners, LP SOLD OUT −1.7M

Who is planning to sell?

Notices of proposed sale, last 12 months

$6.84M

17 notices from 8 people

Shares covered

225.9K

0.17% 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

Robert B Barrow Officer $3.56M
Mark Sullivan Officer $1.26M

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, FY2021–FY2025

+226.3%

+34.40% a year

Each share's claim on the business

−69.4%

shrank without buying or selling a share

Diluted shares, split-adjusted

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years30% 1–3 years28% Under 1 year42%

Quarterly turnover

40.3%

of institutional shares changed hands

Top 10 managers, median time held

2.3 years

Super Investors

Investment managers reporting DFTX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	11.2M	8.36%	+2.8M (+32.5%)	2022	0.0%
Shares held by quarter Peak holding11.2M (Q2'26) Change over 8 quarters+5.6M Share of the company8.360% BlackRock, Inc.'s full portfolio →
AC Avoro Capital Advisors LLC	7.2M	5.35%	+2.2M (+43.8%)	Q4 '25	3.0%
Shares held by quarter Peak holding7.2M (Q2'26) Change over 8 quarters+7.2M Share of the company5.350% Avoro Capital Advisors LLC's full portfolio →

BlackRock, Inc.

11.2M

% of company

8.36%

Change vs last qtr

+2.8M (+32.5%)

Held since

2022

Avoro Capital Advisors LLC

7.2M

% of company

5.35%

Change vs last qtr

+2.2M (+43.8%)

Held since

Q4 '25

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting DFTX on Form N-PORT; together they hold 32.3% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SW SMALLCAP World Fund Inc SMALLCAP World Fund Inc	$362M	7.7M	5.72%	0.38%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$157M	3.3M	2.49%	0.19%	June 30, 2026

SMALLCAP World Fund Inc

Position value

$362M

% of company

5.72%

% of the fund

0.38%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$157M

% of company

2.49%

% of the fund

0.19%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Definium Therapeutics 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
BR Barrow Robert Insider	2.2M	1.65%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company1.650% Barrow Robert's insider activity →
KD Karlin Dan Insider	792.8K	0.59%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.590% Karlin Dan's insider activity →

Barrow Robert

Insider

2.2M

% of company

1.65%

Change vs last qtr

—

Held since

—

Karlin Dan

Insider

792.8K

% of company

0.59%

Change vs last qtr

—

Held since

—

10 more holders behind a free account

See every insider and 5%+ holder of Definium Therapeutics Inc.

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