$EC

$17.40 -$0.40 (2.25%) Close

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

Ownership

13F as of Q2 2026 · 41.12B shares outstanding

Who owns EC?

By type of holder

Institutions 0.1% Insiders 0.0% Everyone else 99.9%

Concentration Top 10 holders own 0.1%

BlackRock, Inc. 0.0% · Morgan Stanley 0.0%

Institutional ownership

0.1%

0.0 pts vs last qtr

Institutional holders

298

+1 vs last qtr

Net shares bought

+3.0M

by institutions in Q2 2026

New / sold out

48 / 47

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Marshall Wace, LLP +2.1M
BlackRock, Inc. +1.4M

Biggest sellers in Q2 2026

D. E. Shaw & Co., Inc. −1.1M
Connor, Clark & Lunn Investment Management Ltd. −860.8K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Ecopetrol SA in the last 12 months.

Is your stake being diluted?

There are not yet two fiscal years of reported share counts for Ecopetrol SA.

How patient are the owners?

Institutional shares by how long they've been held

5+ years52% 3–5 years8% 1–3 years23% Under 1 year16%

Quarterly turnover

18.7%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting EC on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
B BlackRock, Inc.	4.1M	0.01%	+1.4M (+50.4%)	≤2021	0.0%
Shares held by quarter Peak holding4.1M (Q2'26) Change over 8 quarters+2.9M Share of the company0.010% BlackRock, Inc.'s full portfolio →
MS Morgan Stanley	2.9M	0.01%	+424.6K (+16.9%)	≤2021	0.0%
Shares held by quarter Peak holding2.9M (Q2'26) Change over 8 quarters+553.2K Share of the company0.010% Morgan Stanley's full portfolio →

BlackRock, Inc.

4.1M

% of company

0.01%

Change vs last qtr

+1.4M (+50.4%)

Held since

≤2021

Morgan Stanley

2.9M

% of company

0.01%

Change vs last qtr

+424.6K (+16.9%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Ecopetrol SA, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting EC on Form N-PORT; together they hold 0.0% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
PT PGIM Total Return Bond Fund Prudential Investment Portfolios, Inc. 17	$26.7M	—	0.00%	0.05%	July 31, 2026
IL iShares Latin America 40 ETF iShares Trust	$20.9M	1.5M	0.00%	0.56%	June 30, 2026

PGIM Total Return Bond Fund

Prudential Investment Portfolios, Inc. 17

Position value

$26.7M

% of company

0.00%

% of the fund

0.05%

As of

July 31, 2026

iShares Latin America 40 ETF

iShares Trust

Position value

$20.9M

% of company

0.00%

% of the fund

0.56%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Ecopetrol SA 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
TA Triana Arias Bayron Insider	29.9K	0.00%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.000% Triana Arias Bayron's insider activity →
MJ Manzur Jattin Jose Camilo Insider	5.0K	0.00%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company0.000% Manzur Jattin Jose Camilo's insider activity →

Triana Arias Bayron

Insider

29.9K

% of company

0.00%

Change vs last qtr

—

Held since

—

Manzur Jattin Jose Camilo

Insider

5.0K

% of company

0.00%

Change vs last qtr

—

Held since

—

3 more holders behind a free account

See every insider and 5%+ holder of Ecopetrol SA.

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