Ecopetrol EC Institutional Ownership

NYSE EC

$17.41 -0.40 (-2.25%)

At close: Oct 26, 2026 · 4:00 PM EDT

Institutions by Trading Activity

163 Institutions

Increased 93 57.1%

Unchanged 22 13.5%

Reduced 48 29.4%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

1.37%

▲+0.13 pp QoQ

Shares Held by Institutions

28.25Mn

of 2.06Bn outstanding

▲+10.07% QoQ

Shares Outstanding

2.06Bn

2.03Bn held outside 13F filers

Institutional Investors

163

filed 13F for Jun 2026

■0 vs prior quarter

Net Shares Added (QoQ)

+2.58Mn

accumulated since last quarter

Value of Holdings

$491.92Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 11, 2026

Ecopetrol S.A. (NYSE:EC) counted 163 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

Collectively, these holders controlled 1.37% of Ecopetrol's outstanding shares in Q2 2026, up from 1.25% in Q1 2026.
Total holdings of EC shares rose 10.07% from Q1 2026, and the holder count rose 21.64% from Q2 2025.
Of the 163 holders, 93 added to their positions, 48 reduced their stakes and 22 left their positions unchanged in Q2 2026.
Altogether, institutional holders owned 28.25Mn EC shares at the end of Q2 2026, up 2.58Mn from the prior quarter and up 3.07Mn from a year earlier.
BlackRock, Inc. held the largest position in EC at 4.11Mn shares as of June 30, 2026, or 0.20% of shares outstanding.
Among holders that already owned Ecopetrol, the biggest buyers in Q2 2026 were Marshall Wace, LLP (+2.07Mn shares), BlackRock, Inc. (+1.38Mn shares), Renaissance Technologies LLC (+660.4K shares), Barclays PLC (+466.41K shares) and Millennium Management LLC (+423.43K shares).
Holders that trimmed the most shares of Ecopetrol in Q2 2026 while keeping a position were D. E. Shaw & Co., Inc. (-1.06Mn shares), Connor, Clark & Lunn Investment Management Ltd. (-860.76K shares), Two Sigma Investments, LP (-856.9K shares), JPMorgan Chase & Co (-387.91K shares) and XTX Topco Ltd (-279.22K shares).
Ecopetrol's 10 largest institutional shareholders as of Q2 2026 were BlackRock, Inc. (4.11Mn shares), Marshall Wace, LLP (2.64Mn shares), Charles Schwab Investment Management Inc (1.84Mn shares), Vanguard Fiduciary Trust Co (1.82Mn shares), Vanguard Capital Management LLC (1.25Mn shares), Two Sigma Investments, LP (996.39K shares), American Century Companies Inc (962.78K shares), Renaissance Technologies LLC (899.4K shares), Goldman Sachs Group Inc (890.82K shares) and Morgan Stanley (884.83K shares), per Business Quant data.

Form 13F Holdings

163 Institutional Holders

Report period 30 Jun, 2026

Total shares held 28.25Mn

Of outstanding 1.37%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	4,105,675	0.20%	▲1,376,178	+50.42%	$58.46Mn
2	MARSHALL WACE, LLP	0001318757	2,636,516	0.13%	▲2,066,221	+362.31%	$37.54Mn
3	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	1,841,703	0.09%	▲176,967	+10.63%	$26.23Mn
4	VANGUARD FIDUCIARY TRUST CO	0000933478	1,817,855	0.09%	▲4,037	+0.22%	$25.89Mn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	1,246,884	0.06%	▲44,791	+3.73%	$17.76Mn
6	TWO SIGMA INVESTMENTS, LP	0001179392	996,387	0.05%	▼856,903	-46.24%	$14.19Mn
7	AMERICAN CENTURY COMPANIES INC	0000748054	962,783	0.05%	▲78,715	+8.90%	$13.71Mn
8	RENAISSANCE TECHNOLOGIES LLC	0001037389	899,400	0.04%	▲660,400	+276.32%	$12.81Mn
9	Goldman Sachs Group Inc	0000886982	890,821	0.04%	▲8,931	+1.01%	$12.69Mn
10	Morgan Stanley	0000895421	884,827	0.04%	▲347,237	+64.59%	$12.60Mn
11	Brevan Howard Capital Management LP	0001512857	828,314	0.04%	▲828,314	0.00%	$11.91Mn
12	MILLENNIUM MANAGEMENT LLC	0001273087	747,485	0.04%	▲423,427	+130.66%	$10.64Mn
13	Aventail Capital Group, LP	0001803822	747,141	0.04%	▲286,939	+62.35%	$10.64Mn
14	Barclays Plc	0000312069	736,904	0.04%	▲466,407	+172.43%	$10.49Mn
15	Connor, Clark & Lunn Investment Management Ltd.	0001596800	688,121	0.03%	▼860,758	-55.57%	$9.80Mn
16	UBS Group AG	0001610520	552,156	0.03%	▲327,573	+145.86%	$7.86Mn
17	Truffle Hound Capital, LLC	0001595862	430,000	0.02%	▼120,000	-21.82%	$6.12Mn
18	Banco BTG Pactual S.A.	0001536080	402,757	0.02%	▲216,805	+116.59%	$5.74Mn
19	GROUP ONE TRADING LLC	0000932540	372,004	0.02%	▲240,859	+183.66%	$5.30Mn
20	State Street Corp	0000093751	326,994	0.02%	▼34,558	-9.56%	$4.66Mn

Showing 1 to 20 of 163 holders