ECOPETROL S.A. (EC) — Institutional Holders, Q2 2026

163 institutional investment managers reported a EC position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $402.7M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← EC stock profile

EC in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

Trimmed

Sold out

Biggest buyers

MARSHALL WACE, LLPAdded · +2,066,221 sh+$29.4M
BlackRockAdded · +1,376,178 sh+$19.6M
Brevan Howard Capital ManagementNew · +828,314 sh+$11.8M
RENAISSANCE TECHNOLOGIESAdded · +660,400 sh+$9.4M
BARCLAYS PLCAdded · +466,407 sh+$6.6M

Biggest sellers

D. E. ShawTrimmed · -1,064,942 sh-$15.2M
Connor, Clark & Lunn Investment Management Ltd.Trimmed · -860,758 sh-$12.3M
TWO SIGMA INVESTMENTSTrimmed · -856,903 sh-$12.2M
JANE STREET GROUPSold out · -511,390 sh-$7.3M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPSold out · -436,454 sh-$6.2M

EC 13F holders ranked 1–100 of 163

Institutional investors reporting a position in ECOPETROL S.A. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 4,105,675 sh	4,105,675	$58.5M	<0.01%	+50.4%
2	MARSHALL WACE, LLP#2 · 2,636,516 sh	2,636,516	$37.5M	0.03%	+362.3%
3	CHARLES SCHWAB INVESTMENT MANAGEMENT#3 · 1,841,703 sh	1,841,703	$26.2M	<0.01%	+10.6%
4	VANGUARD FIDUCIARY#4 · 1,817,855 sh	1,817,855	$25.9M	<0.01%	+0.2%
5	VANGUARD CAPITAL MANAGEMENT#5 · 1,246,884 sh	1,246,884	$17.8M	<0.01%	+3.7%
6	TWO SIGMA INVESTMENTS#6 · 996,387 sh	996,387	$14.2M	0.01%	-46.2%
7	AMERICAN CENTURY COMPANIES#7 · 962,783 sh	962,783	$13.7M	<0.01%	+8.9%
8	RENAISSANCE TECHNOLOGIES#8 · 899,400 sh	899,400	$12.8M	0.02%	+276.3%
9	GOLDMAN SACHS GROUP#9 · 890,821 sh	890,821	$12.7M	<0.01%	+1.0%
10	MORGAN STANLEY#10 · 884,827 sh	884,827	$12.6M	<0.01%	+64.6%
11	Brevan Howard Capital Management#11 · 828,314 sh	828,314	$11.9M	0.09%	New
12	MILLENNIUM MANAGEMENT#12 · 747,485 sh	747,485	$10.6M	<0.01%	+130.7%
13	Aventail Capital Group#13 · 747,141 sh	747,141	$10.6M	0.61%	+62.4%
14	BARCLAYS PLC#14 · 736,904 sh	736,904	$10.5M	<0.01%	+172.4%
15	Connor, Clark & Lunn Investment Management Ltd.#15 · 688,121 sh	688,121	$9.8M	0.02%	-55.6%
16	UBS Group AG#16 · 552,156 sh	552,156	$7.9M	<0.01%	+145.9%
17	Truffle Hound Capital#17 · 430,000 sh	430,000	$6.1M	1.31%	-21.8%
18	Banco BTG Pactual S.A.#18 · 402,757 sh	402,757	$5.7M	0.48%	+116.6%
19	GROUP ONE TRADING, L.P.#19 · 372,004 sh	372,004	$5.3M	<0.01%	+183.7%
20	STATE STREET#20 · 326,994 sh	326,994	$4.7M	<0.01%	-9.6%
21	CWA Asset Management Group#21 · 309,290 sh	309,290	$4.4M	—	+24.5%
22	Fisher Asset Management#22 · 250,730 sh	250,730	$3.6M	<0.01%	-22.5%
23	JPMORGAN CHASE#23 · 244,355 sh	244,355	$3.6M	<0.01%	-61.4%
24	D. E. Shaw#24 · 202,778 sh	202,778	$2.9M	<0.01%	-84.0%
25	Nuveen#25 · 199,087 sh	199,087	$2.8M	<0.01%	New
26	OSAIC#26 · 192,637 sh	192,637	$2.7M	<0.01%	+375.5%
27	MANNING & NAPIER ADVISORS#27 · 150,780 sh	150,780	$2.2M	0.03%	-18.6%
28	Carrera Capital Advisors#28 · 154,012 sh	154,012	$2.2M	0.33%	+1.0%
29	Walleye Trading#29 · 145,517 sh	145,517	$2.1M	<0.01%	+53.8%
30	LAZARD ASSET MANAGEMENT#30 · 144,685 sh	144,685	$2.1M	<0.01%	New
31	NORTHERN#31 · 142,748 sh	142,748	$2.0M	<0.01%	+2.0%
32	LPL Financial#32 · 138,979 sh	138,979	$2.0M	<0.01%	-18.8%
33	BAROMETER CAPITAL MANAGEMENT#33 · 133,500 sh	133,500	$1.9M	0.53%	+22.5%
34	Legal & General Group Plc#34 · 132,628 sh	132,628	$1.9M	<0.01%	-6.1%
35	MIRABELLA FINANCIAL SERVICES LLP#35 · 128,970 sh	128,970	$1.8M	0.18%	New
36	CITIGROUP#36 · 126,243 sh	126,243	$1.8M	<0.01%	+732.8%
37	WELLINGTON MANAGEMENT GROUP LLP#37 · 120,023 sh	120,023	$1.7M	<0.01%	New
38	HANTZ FINANCIAL SERVICES#38 · 113,966 sh	113,966	$1.6M	0.02%	+17.2%
39	BNP PARIBAS FINANCIAL MARKETS#39 · 113,613 sh	113,613	$1.6M	<0.01%	+553.5%
40	MACKENZIE FINANCIAL#40 · 112,231 sh	112,231	$1.6M	<0.01%	New
41	SONA ASSET MANAGEMENT (US)#41 · 100,000 sh	100,000	$1.4M	0.03%	0.0%
42	SELDON CAPITAL#42 · 100,000 sh	100,000	$1.4M	0.45%	New
43	SBI Securities , Ltd.#43 · 97,992 sh	97,992	$1.4M	—	-22.1%
44	Robeco Institutional Asset Management B.V.#44 · 90,622 sh	90,622	$1.3M	—	0.0%
45	Integrated Wealth Concepts#45 · 88,689 sh	88,689	$1.3M	<0.01%	+120.8%
46	O'Brien Greene#46 · 83,000 sh	83,000	$1.2M	0.33%	+29.7%
47	ALLIANZ SE#47 · 80,663 sh	80,663	$1.1M	0.01%	+22.6%
48	Glenorchy Capital Ltd#48 · 77,125 sh	77,125	$1.1M	0.04%	+6.1%
49	Sagil Capital LLP#49 · 74,889 sh	74,889	$1.1M	0.38%	New
50	Vident Advisory#50 · 71,107 sh	71,107	$1.0M	<0.01%	-9.5%
51	Kerrisdale Advisers#51 · 67,555 sh	67,555	$962.0K	0.24%	0.0%
52	SG Americas Securities#52 · 66,748 sh	66,748	$950.0K	<0.01%	New
53	Invesco Ltd.#53 · 63,329 sh	63,329	$901.8K	<0.01%	-1.6%
54	Sanctuary Advisors#54 · 58,470 sh	58,470	$832.6K	<0.01%	-5.3%
55	Creative Planning#55 · 58,211 sh	58,211	$828.9K	<0.01%	+7.4%
56	Itau Unibanco Holding S.A.#56 · 56,317 sh	56,317	$802.0K	0.02%	New
57	Cetera Investment Advisers#57 · 55,316 sh	55,316	$787.7K	<0.01%	New
58	BANK OF AMERICA#58 · 52,376 sh	52,376	$745.8K	0.00%	-19.3%
59	IMC-Chicago#59 · 51,667 sh	51,667	$735.7K	<0.01%	+52.2%
60	TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU SA#60 · 49,500 sh	49,500	$704.9K	0.20%	New
61	Engineers Gate Manager#61 · 46,838 sh	46,838	$667.0K	<0.01%	-80.0%
62	Advisors Asset Management#62 · 46,245 sh	46,245	$658.5K	0.01%	-1.0%
63	Russell Investments Group, Ltd.#63 · 45,891 sh	45,891	$653.5K	<0.01%	0.0%
64	HRT FINANCIAL#64 · 44,990 sh	44,990	$640.0K	<0.01%	New
65	Thompson David Blair#65 · 44,600 sh	44,600	$635.1K	0.32%	+187.7%
66	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO#66 · 43,271 sh	43,271	$616.2K	<0.01%	-66.7%
67	GSA CAPITAL PARTNERS LLP#67 · 39,216 sh	39,216	$558.0K	0.04%	New
68	ENVESTNET ASSET MANAGEMENT#68 · 38,370 sh	38,370	$546.4K	<0.01%	+26.5%
69	O'SHAUGHNESSY ASSET MANAGEMENT#69 · 37,422 sh	37,422	$532.9K	<0.01%	-36.6%
70	TCG Advisory Services#70 · 35,480 sh	35,480	$505.2K	<0.01%	+25.8%
71	GAMMA Investing#71 · 35,037 sh	35,037	$498.9K	—	+8.3%
72	Bramshill Investments#72 · 35,000 sh	35,000	$498.4K	0.04%	New
73	STIFEL FINANCIAL#73 · 34,804 sh	34,804	$495.6K	<0.01%	-2.4%
74	Grantham, Mayo, Van Otterloo#74 · 34,700 sh	34,700	$494.1K	<0.01%	-77.2%
75	Mariner#75 · 34,381 sh	34,381	$489.6K	<0.01%	+4.9%
76	EntryPoint Capital#76 · 33,466 sh	33,466	$476.6K	0.12%	+65.6%
77	XTX Topco Ltd#77 · 32,879 sh	32,879	$468.2K	<0.01%	-89.5%
78	TD Waterhouse Canada#78 · 31,878 sh	31,878	$460.3K	—	-35.3%
79	Vanguard Personalized Indexing Management#79 · 32,231 sh	32,231	$459.0K	<0.01%	+37.5%
80	Toroso Investments#80 · 30,751 sh	30,751	$437.9K	<0.01%	-4.6%
81	Stokes Family Office#81 · 30,425 sh	30,425	$433.3K	0.05%	0.0%
82	RAYMOND JAMES FINANCIAL#82 · 29,378 sh	29,378	$418.3K	<0.01%	+44.7%
83	ATLAS CAPITAL ADVISORS#83 · 27,283 sh	27,283	$388.5K	0.04%	+70.9%
84	ACADIAN ASSET MANAGEMENT#84 · 25,881 sh	25,881	$367.0K	<0.01%	New
85	LEUTHOLD GROUP#85 · 25,672 sh	25,672	$365.6K	0.04%	+0.7%
86	Vise Technologies#86 · 21,100 sh	21,100	$300.5K	<0.01%	+82.6%
87	Janney Montgomery Scott#87 · 21,048 sh	21,048	$300.0K	<0.01%	+27.6%
88	PING CAPITAL MANAGEMENT#88 · 21,000 sh	21,000	$299.0K	—	+75.0%
89	WELLS FARGO & COMPANY#89 · 20,444 sh	20,444	$291.1K	0.00%	-0.5%
90	PRINCIPAL FINANCIAL GROUP#90 · 20,027 sh	20,027	$285.2K	<0.01%	-17.3%
91	Capital Asset Advisory Services#91 · 18,262 sh	18,262	$260.1K	<0.01%	New
92	SIMPLEX TRADING#92 · 17,658 sh	17,658	$251.4K	<0.01%	-90.2%
93	J. Safra Sarasin Holding AG#93 · 17,203 sh	17,203	$245.0K	—	New
94	QRG CAPITAL MANAGEMENT#94 · 17,194 sh	17,194	$244.8K	<0.01%	-24.7%
95	GUGGENHEIM CAPITAL#95 · 16,690 sh	16,690	$237.7K	<0.01%	+30.9%
96	BOOTHBAY FUND MANAGEMENT#96 · 16,519 sh	16,519	$235.2K	<0.01%	New
97	Ballentine Partners#97 · 16,427 sh	16,427	$233.9K	<0.01%	+5.4%
98	JBF Capital#98 · 16,000 sh	16,000	$227.8K	0.03%	-20.0%
99	MML INVESTORS SERVICES#99 · 15,489 sh	15,489	$220.6K	<0.01%	New
100	CONFLUENCE INVESTMENT MANAGEMENT#100 · 15,465 sh	15,465	$220.2K	—	+15.1%

Funds that sold out of EC in Q2 2026 (35)

Held EC at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held EC in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
JANE STREET GROUP511,390 sh	511,390	$7.7M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP436,454 sh	436,454	$6.5M
VOLORIDGE INVESTMENT MANAGEMENT199,851 sh	199,851	$3.0M
BW Gestao de Investimentos Ltda.161,246 sh	161,246	$2.4M
Wealth High Governance Capital Ltda161,246 sh	161,246	$2.4M
Wealth High Governance Asset Management Ltda.137,208 sh	137,208	$2.1M
CITADEL ADVISORS113,869 sh	113,869	$1.7M
Pekin Hardy Strauss108,524 sh	108,524	$1.6M
Jump Financial67,706 sh	67,706	$1.0M
Compound Planning44,341 sh	44,341	$664.7K
Patriot Financial Group Insurance Agency42,960 sh	42,960	$644.0K
Point72 Asset Management, L.P.41,115 sh	41,115	$616.3K
CIBC WORLD MARKET35,810 sh	35,810	$536.8K
Rathbones Group PLC32,650 sh	32,650	$489.4K
HSBC PLC31,108 sh	31,108	$465.7K
Centiva Capital29,791 sh	29,791	$446.6K
FOX RUN MANAGEMENT, L.L.C.26,431 sh	26,431	$395.9K
Private Advisor Group23,584 sh	23,584	$353.5K
R Squared Ltd16,738 sh	16,738	$250.9K
Verition Fund Management16,594 sh	16,594	$248.7K
PHILADELPHIA15,758 sh	15,758	$236.0K
Advisory Services Network13,295 sh	13,295	$199.3K
Bridgefront Capital13,016 sh	13,016	$195.1K
TWO SIGMA SECURITIES12,256 sh	12,256	$183.7K
Sowell Financial Services11,265 sh	11,265	$168.9K
PROFUND ADVISORS11,245 sh	11,245	$168.6K
Straight Path Wealth Management10,000 sh	10,000	$149.9K
QUADRANT CAPITAL GROUP7,194 sh	7,194	$102.9K
Quantbot Technologies4,074 sh	4,074	$61.1K
Golden State Equity Partners1,718 sh	1,718	$25.8K
Longview Financial Advisors1,340 sh	1,340	$20.1K
Triumph Capital Management300 sh	300	$4.5K
Annis Gardner Whiting Capital Advisors103 sh	103	$1.5K
Essential Investment Partners20 sh	20	$300.00
HOLLENCREST SECURITIES10 sh	10	$150.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.