$DTM

$128.54 +$1.64 (1.29%) Close

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

Ownership

13F as of Q2 2026 · 102.0M shares outstanding

Who owns DTM?

By type of holder

Institutions 86.5% Insiders 0.5% Everyone else 13.0%

Concentration Top 10 holders own 41.2%

BlackRock, Inc. 11.2% · Vanguard Portfolio Management LLC 5.7%

Institutional ownership

86.5%

+3.3 pts vs last qtr

Institutional holders

705

+27 vs last qtr

Net shares bought

+3.4M

by institutions in Q2 2026

New / sold out

84 / 57

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Clearbridge Investments, LLC +1.4M
Geode Capital Management, LLC +1.1M

Biggest sellers in Q2 2026

59 North Capital Management, LP −647.7K
Two Sigma Investments, LP −595.1K

Who is planning to sell?

Notices of proposed sale, last 12 months

$273K

1 notice from 1 person

Shares covered

2.0K

0.00% 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

Tumminello Peter I Director $273K

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, FY2019–FY2025

+6.0%

+0.98% a year

Each share's claim on the business

−5.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$3M vs $104M

over 7 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+ years20% 3–5 years61% 1–3 years12% Under 1 year7%

Quarterly turnover

7.6%

of institutional shares changed hands

Top 10 managers, median time held

4.8 years

Super Investors

Investment managers reporting DTM on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	11.4M	11.17%	+481.9K (+4.4%)	≤2021	0.0%
Shares held by quarter Peak holding11.4M (Q2'26) Change over 8 quarters+973.5K Share of the company11.170% BlackRock, Inc.'s full portfolio →
VP Vanguard Portfolio Management LLC	5.8M	5.66%	−105.3K (−1.8%)	2021	0.0%
Shares held by quarter Peak holding5.9M (Q1'26) Change over 8 quarters+5.8M Share of the company5.660% Vanguard Portfolio Management LLC's full portfolio →

BlackRock, Inc.

11.4M

% of company

11.17%

Change vs last qtr

+481.9K (+4.4%)

Held since

≤2021

Vanguard Portfolio Management LLC

5.8M

% of company

5.66%

Change vs last qtr

−105.3K (−1.8%)

Held since

2021

28 more super investors behind a free account

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

Institutional Funds

Mutual funds and ETFs reporting DTM on Form N-PORT; together they hold 43.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Mid-Cap ETF iShares Trust	$512M	3.5M	3.42%	0.41%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$475M	3.2M	3.17%	0.02%	June 30, 2026

iShares Core S&P Mid-Cap ETF

iShares Trust

Position value

$512M

% of company

3.42%

% of the fund

0.41%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$475M

% of company

3.17%

% of the fund

0.02%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding DT Midstream, 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
SD Slater David Insider	263.0K	0.26%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.260% Slater David's insider activity →
ZC Zona Christopher Insider	96.1K	0.09%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.090% Zona Christopher's insider activity →

Slater David

Insider

263.0K

% of company

0.26%

Change vs last qtr

—

Held since

—

Zona Christopher

Insider

96.1K

% of company

0.09%

Change vs last qtr

—

Held since

—

10 more holders behind a free account

See every insider and 5%+ holder of DT Midstream, Inc..

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