Ecopetrol S.A. - Depositary Receipt (Common Stock)
US ˙ NYSE ˙ US2791581091

SecurityEC / Ecopetrol S.A. - Depositary Receipt (Common Stock)
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership40,513 shares
Latest Disclosed Value $ 607,303
Advisor Group Holdings, Inc. reports 70.13% decrease in ownership of EC / Ecopetrol S.A. - Depositary Receipt (Common Stock)

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 40,513 shares of Ecopetrol S.A. - Depositary Receipt (Common Stock) (US:EC) valued at $607,290 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 135,611 shares of Ecopetrol S.A. - Depositary Receipt (Common Stock). This represents a change in shares of -70.13% during the quarter. The current value of the position is $613,772 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ECOPETROL S A SPONSORED ADS 279158109 40,513 -95,098 -70.13 607 -55.30 0.0005
2026-02-17 2025-12-31 13F ECOPETROL S A SPONSORED ADS 279158109 135,611 -5,617 -3.98 1,359 4.22 0.0020
2025-11-14 2025-09-30 13F ECOPETROL S A SPONSORED ADS 279158109 141,228 -4,844 -3.32 1,304 0.85 0.0018
2025-09-04 2025-06-30 13F/A-1 COPETROL S A SPONSORED ADS 279158109 146,072 28,613 24.36 1,293 5.38 0.0023
2025-08-13 2025-06-30 13F COPETROL S A SPONSORED ADS 279158109 28,550 -88,909 227 0.0003
2025-05-12 2025-03-31 13F ECOPETROL S A SPONSORED ADS 279158109 117,459 88,992 312.61 1,226 444.89 0.0027
2025-06-06 2024-12-31 13F/A-1 ECOPETROL S A SPONSORED ADS 279158109 28,467 -6,832 -19.35 225 -28.57 0.0005
2025-02-07 2024-12-31 13F ECOPETROL S A SPONSORED ADS 279158109 30,262 -5,037 270 0.0007
2024-11-13 2024-09-30 13F ECOPETROL S A SPONSORED ADS 279158109 35,299 -11,849 -25.13 315 -40.23 0.0007
2024-08-13 2024-06-30 13F ECOPETROL S A SPONSORED ADS 279158109 47,148 15,850 50.64 528 42.43 0.0012
2024-05-10 2024-03-31 13F ECOPETROL S A SPONSORED ADS 279158109 31,298 -4,308 -12.10 371 -12.74 0.0008
2024-02-12 2023-12-31 13F ECOPETROL S A SPONSORED ADS 279158109 35,606 545 1.55 424 4.69 0.0007
2023-11-13 2023-09-30 13F ECOPETROL S A SPONSORED ADS 279158109 35,061 9,617 37.80 406 55.77 0.0006
2023-08-21 2023-06-30 13F/A-1 ECOPETROL S A SPONSORED ADS 279158109 25,444 2,776 12.25 261 8.79 0.0005
2023-08-10 2023-06-30 13F ECOPETROL S A SPONSORED ADS 279158109 25,444 2,776 261 0.0001
2023-05-12 2023-03-31 13F ECOPETROL S A SPONSORED ADS 279158109 22,668 3,715 19.60 240 20.71 0.0005
2023-02-10 2022-12-31 13F ECOPETROL S A SPONSORED ADS 279158109 18,953 -630 -3.22 199 13.14 0.0004
2022-11-14 2022-09-30 13F ECOPETROL S A SPONSORED ADS 279158109 19,583 6,481 49.47 175 23.24 0.0004
2022-08-10 2022-06-30 13F ECOPETROL S A SPONSORED ADS 279158109 13,102 -1,269 -8.83 142 -47.01 0.0003
2022-05-04 2022-03-31 13F ECOPETROL S A SPONSORED ADS 279158109 14,371 3,099 27.49 268 84.83 0.0005
2022-02-03 2021-12-31 13F ECOPETROL S A SPONSORED ADS 279158109 11,272 -36 -0.32 145 -10.49 0.0003
2021-11-05 2021-09-30 13F ECOPETROL S A SPONSORED ADS 279158109 11,308 904 8.69 162 6.58 0.0003
2021-08-02 2021-06-30 13F ECOPETROL S A SPONSORED ADS 279158109 10,404 -3,271 -23.92 152 -13.64 0.0003
2021-05-13 2021-03-31 13F ECOPETROL S A SPONSORED ADS 279158109 13,675 1,114 8.87 176 8.64 0.0004
2021-02-10 2020-12-31 13F ECOPETROL S A SPONSORED ADS 279158109 12,561 -1,544 -10.95 162 16.55 0.0004
2020-11-12 2020-09-30 13F ECOPETROL S A SPONSORED ADS 279158109 14,105 -633 -4.30 139 -15.24 0.0004
2020-08-14 2020-06-30 13F ECOPETROL S A SPONSORED ADS 279158109 14,738 1,876 14.59 164 34.43 0.0006
2020-05-18 2020-03-31 13F ECOPETROL S A SPONSORED ADS 279158109 12,862 12,862 122 0.0005
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.